Author: Dr J.L. Rowlandson (University of Bristol).

Topic: Home heating in the energy transition. 

Engineering disciplines: Chemical; Civil; Mechanical; Energy. 

Ethical issues: Sustainability; Social responsibility. 

Professional situations: Public health and safety; Conflicts of interest; Quality of work; Conflicts with leadership/management; Legal implication. 

Educational level: Intermediate. 

Educational aim: Becoming Ethically Sensitive: being broadly cognizant of ethical issues and having the ability to see how these issues might affect others. 

 

Learning and teaching notes: 

This case study considers not only the environmental impacts of a clean technology (the heat pump) but also the social and economic impacts on the end user. Heat pumps form an important part of the UK government’s net-zero plan. Our technical knowledge of heat pump performance can be combined with the practical aspects of implementing and using this technology. However, students need to weigh the potential carbon savings against the potential economic impact on the end user, and consider whether current policy incentivises consumers to move towards clean heating technologies.  

This case study offers students an opportunity to practise and improve their skills in making estimates and assumptions. It also enables students to learn and practise the fundamentals of energy pricing and link this to the increasing issue of fuel poverty. Fundamental thermodynamics concepts, such as the second law, can also be integrated into this study.  

This case study addresses two of the themes from the Accreditation of Higher Education Programmes fourth edition (AHEP4): The Engineer and Society (acknowledging that engineering activity can have a significant societal impact) and Engineering Practice (the practical application of engineering concepts, tools and professional skills). To map this case study to AHEP outcomes specific to a programme under these themes, access AHEP 4 here and navigate to pages 30-31 and 35-37. 

The dilemma in this case is presented in six parts. If desired, a teacher can use the Summary and Part one in isolation, but Parts two to six develop and complicate the concepts presented in the Summary and Part one to provide for additional learning. The case study allows teachers the option to stop at multiple points for questions and/or activities, as desired. 

Learners have the opportunity to: 

Teachers have the opportunity to: 

 

Learning and teaching resources: 

Open access textbooks: 

Journal articles: 

Educational institutions: 

Business: 

Government reports: 

Other organisations: 

Stakeholder mapping: 

 

Summary – Heating systems and building requirements: 

You are an engineering consultant working for a commercial heat pump company. The company handles both the manufacture and installation of heat pumps. You have been called in by a county council to advise and support a project to decarbonise both new and existing housing stock. This includes changes to social housing (either directly under the remit of the council or by working in partnership with a local housing association) and also to private housing, encouraging homeowners and landlords to move towards net zero emissions. In particular, the council is interested in the installation of clean heating technologies with a focus on heat pumps, which it views as the most technologically-ready solution. Currently most heating systems rely on burning natural gas in a boiler to provide heat. By contrast, a heat-pump is a device that uses electricity to extract heat from the air or ground and transfer it to the home, avoiding direct emission of carbon dioxide.  

The council sets your first task of the project as assessing the feasibility of replacing the existing gas boiler systems with heat pumps in social housing. You are aware that there are multiple stakeholders involved in this process you need to consider, in addition to evaluating the suitability of the housing stock for heat pump installation.  

 

Optional STOP for questions and activities: 

1. Discussion: Why might the council have prioritised retrofitting the social housing stock with heat pumps as the first task of the project? How might business and ethical concerns affect this decision?  

2. Activity: Use stakeholder mapping to determine who are the main stakeholders in this project and what are their main priorities? In which areas will these stakeholders have agreements or disagreements? What might their values be, and how do those inform priorities?  

3. Discussion: What key information about the property is important for choosing a heating system? What does the word feasibility mean and how would you define it for this project? 

4. Activity: Research the Energy Performance Certificate (EPC):  what are the main factors that determine the energy performance of a building?  

5. Discussion: What do you consider to be an ‘acceptable’ EPC rating? Is the EPC rating a suitable measure of energy efficiency? Who should decide, and how should the rating be determined?  

 

Technical pre-reading for Part one: 

It is useful to introduce the thermodynamic principles on which heat pumps operate in order to better understand the advantages and limitations when applying this engineering technology in a real-world situation. A heat pump receives heat (from the air, ground, or water) and work (in the form of electricity to a compressor) and then outputs the heat to a hot reservoir (the building you are heating). We recommend covering: 

An online, open-source textbook that covers both topics is Applications of Thermodynamics – Heat Pumps & Refrigerators. 

 

Dilemma – Part one – Considering heat pump suitability: 

You have determined who the main stakeholders are and how to define the project feasibility. A previous investigation commissioned by the council into the existing housing stock, and one of the key drivers for them to initiate this project, has led them to believe that most properties will not require significant retrofitting to make them suitable for heat pump installation.  

 

Optional STOP for question and activities: 

1. Activity: Research how a conventional gas boiler central heating system works. How does a heat pump heating system differ? What heat pump technologies are available? What are the design considerations for installing a heat pump in an existing building? 

 

Dilemma – Part two – Inconsistencies: 

You spot some inconsistencies in the original investigation that appear to have been overlooked. On your own initiative, you decide to perform a more thorough investigation into the existing housing stock within the local authority. Your findings show that most of the dwellings were built before 1980 and less than half have an EPC rating of C or higher. The poor energy efficiency of the existing housing stock causes a potential conflict of interest for you: there are a significant number of properties that would require additional retrofitting to ensure they are suitable for heat pump installation. Revealing this information to the council at this early stage could cause them to pull out of the project entirely, causing your company to lose a significant client. You present these findings to your line manager who wants to suppress this information until the company has a formal contract in place with the council.  

 

Optional STOP for question and activities: 

1. Discussion: How should you respond to your line manager? Is there anyone else you can go to for advice? Do you have an obligation to reveal this information to your client (the council) when it is they who overlooked information and misinterpreted the original study? 

2. Activity: An example of a factor that causes a poor EPC rating is how quickly the property loses heat. A common method for significantly reducing heat loss in a home is to improve the insulation. Estimate the annual running cost of using an air-source heat pump in a poorly-insulated versus a well-insulated home to look at the potential financial impact for the tenant (example approach shown in the Appendix, Task A). 

3. Discussion: What recommendations would you make to the council to ensure the housing is heat-pump ready? Would your recommendation change for a new-build property? 

 

Dilemma – Part three – Impact of energy costs on the consumer: 

Your housing stock report was ultimately released to the council and they have decided to proceed, though for a more limited number of properties. The tenants of these dwellings are important stakeholders who are ultimately responsible for the energy costs of their properties. A fuel bill is made up of the wholesale cost of energy, network costs to transport it, operating costs, taxes, and green levies. Consumers pay per unit of energy used (called the unit cost) and also a daily fixed charge that covers the cost of delivering energy to a home regardless of the amount of energy used (called the standing charge). In the UK, currently the price of natural gas is the main driver behind the price of electricity; the unit price of electricity is typically three to four times the price of gas. 

Your next task is to consider if replacing the gas boiler in a property with a heat pump system will have a positive or negative effect on the running costs.  

 

Optional STOP for questions and activities: 

1. Activity: Estimate the annual running cost for a property when using a heat pump versus a natural gas boiler (see Appendix Task B for an example approach). 

2. Discussion: Energy prices are currently rising and have seen drastic changes in the UK over the past year. The lifetime of a new heat pump system is around 20 years. How would rising gas and electric prices affect the tenant? Does this impact the feasibility of using a gas boiler versus a heat pump? How can engineering knowledge and expertise help inform pricing policies? 

 

Dilemma – Part four – Tenants voice concerns: 

After a consultation, some of the current tenants whose homes are under consideration for heat pump installation have voiced concerns. The council is planning to install air-source heat pumps due to their reduced capital cost compared to a ground-source heat pump. The tenants are concerned that the heat pump will not significantly reduce their fuel bills in the winter months (when it is most needed) and instead could increase their bills if the unit price and standing charge for electricity continue to increase. They want a guarantee from the council that their energy bills will not be adversely affected. 

 

Optional STOP for questions and activities: 

1. Discussion: Why would air-source heat pumps be less effective in winter? What are the potential effects of increased energy bills on the tenants? How much input should the tenants have on the heating system in their rented property? 

2. Discussion: Do the council have any responsibility if the installation does result in an increased energy bill in the winter for their tenants? Do you and your company have any responsibility to the tenants?  

 

Dilemma – Part five – The council consultation: 

The council has hosted an open consultation for private homeowners within the area that you are involved in. They want to encourage owners of private dwellings to adopt low-carbon technologies and are interested in learning about the barriers faced and what they can do to encourage the adoption of low carbon-heating technologies. The ownership of houses in the local area is similar to the overall UK demographic: around 20% of dwellings are in the social sector (owned either by the local authority or a housing association), 65% are privately owned, and 15% are privately rented.  

 

Optional STOP for questions and activities: 

1. Activity: Estimate the lifetime cost of running an air-source heat pump and ground-source heat pump versus a natural gas boiler. Include the infrastructure costs associated with installation of the heating system (see Appendix Task C for an example approach). This can be extended to include the impact of increasing energy prices.  

2. Activity: Research the policies, grants, levies, and schemes available at local and national levels that aim to encourage uptake of net zero heating. 

3. Discussion: From your estimations and research, how suitable are the current schemes? What recommendations would you make to improve the uptake of zero carbon heating? 

 

Dilemma – Part six – Recommendations: 

Energy costs and legislation are important drivers for encouraging homeowners and landlords to adopt clean heating technologies. There is a need to weigh up potential cost savings with the capital cost associated with installing a new heat system. Local and national policies, grants, levies, and bursaries are examples of tools used to fund and support adoption of renewable technologies. Currently, an environmental and social obligations cost, known as the ‘green levies,’ are added to energy bills which contribute to a mixture of social and environmental energy policies (including, for example, renewable energy projects, discounts for low-income households, and energy efficiency improvements).  

Your final task is to think more broadly on encouraging the uptake of low-carbon heating systems in private dwellings (the majority of housing in the UK) and to make recommendations on how both councils locally and the government nationally can encourage uptake in order to reduce carbon emissions.  

 

Optional STOP for questions and activities: 

1. Discussion: In terms of green energy policy, where does the ethical responsibility lie –  with the consumer, the local government, or the national government?  

2. Discussion: Should the national Government set policies like the green levy that benefit the climate in the long-term but increase the cost of energy now?  

3. Discussion: As an employee of a private company, to what extent is the decarbonisation of the UK your problem? Do you or your company have a responsibility to become involved in policy? What are the advantages or disadvantages to yourself as an engineer?  

 

Appendix: 

The three tasks that follow are designed to encourage students to practise and improve their zeroth order approximation skills (for example a back of the envelope calculation). Many simplifying assumptions can be made but they should be justified.  

Task A: Impact of insulation 

Challenge: Estimate the annual running cost for an air-source heat pump in a poorly insulated home. Compare to a well-insulated home.  

Base assumptions around the heat pump system and the property being heated can be researched by the student as a task or given to them. In this example we assume:  

Example estimation: 

1. Estimate the overall heat loss for a poorly- and well-insulated property.

Note: heat loss is greater in the poorly insulated building.

 

 2. Calculate the work input for the heat pump.  

Assumption: heat pump matches the heat loss to maintain a consistent temperature.

 Note: a higher work input is required in the poorly insulated building to maintain a stable temperature.

 

3. Determine the work input over a year. 

Assumption: heat pump runs for 8 hours per day for 365 days.

 

4. Determine the running cost 

For an electricity unit price of 33.8 p per kWh.

 

Note: running cost is higher for the poorly insulated building due to the higher work input required to maintain temperature. 

 

Task B: Annual running cost estimation 

Challenge: Estimate the annual running cost for a property when using a heat pump versus a natural gas boiler.  

Base assumptions around the boiler system, heat pump system, and property can be researched by the student as a task or given to them. In this example we assume: 

Energy tariffs (correct at time of writing) for the domestic consumer including the energy price guarantee discount: 

Domestic energy tariffs 
Electric standing charge  51.0p per day 
Unit price of electricity  33.8p per kWh 
Gas standing charge  26.8p per kWh 
Unit price of gas  10.4p per kWh 

 

Example estimation: 

1. Calculate the annual power requirement for each case. 

Assumed heating requirement is 15,000 kWh for the year. 

2. Calculate the annual cost for each case: 

Note: the higher COP of the ground-source heat pump makes this the more favourable option (dependent on the fuel prices).  

 

Task C: Lifetime cost estimation  

Challenge: Estimate the total lifetime cost for a property when using a heat pump versus a natural gas boiler.  

Base assumptions around the boiler system, heat pump system, and property can be researched by the student as a task or given to them. In this example we assume: 

Energy tariffs (correct at time of writing) for the domestic consumer including the energy price guarantee discount: 

Domestic energy tariffs 
Electric standing charge  51.0p per day 
Unit price of electricity  33.8p per kWh 
Gas standing charge  26.8p per kWh 
Unit price of gas  10.4p per kWh 

 

1. Calculate the lifetime running cost for each case.

 

2. Calculate the total lifetime cost for each case.

 

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Any views, thoughts, and opinions expressed herein are solely that of the author(s) and do not necessarily reflect the views, opinions, policies, or position of the Engineering Professors’ Council or the Toolkit sponsors and supporters.

Authors: Diana Martin (Eindhoven University of Technology); Sarah Jayne Hitt, Ph.D. SFHEA (NMITE, Edinburgh Napier University).

Topic:  Participatory approaches for engaging with a local community about the development of risky technologies. 

Engineering disciplines: Nuclear engineering; Energy; Chemical engineering. 

Ethical issues: Corporate Social Responsibility; Risk; Accountability; Respect for the Environment. 

Professional situations: Conflicts of interest; Public health and safety; Communication. 

Educational level: Advanced.  

Educational aim: Engaging in ethical judgement: reaching moral decisions and providing the rationale for those decisions.  

 

Learning and teaching notes:  

This case study involves an early career engineer tasked with leading the development of plans for the construction of the first nuclear plant in a region. The case can be customised by instructors when specifying the name of the region, as to whether the location of the case study corresponds to the location of the educational institution or if a more remote context is preferred. The case incorporates several components, including stakeholder mapping, participatory methods for assessing risk perception and community engagement, qualitative risk analysis, and policy-making.  

The case study asks students to identify and define an open-ended risk problem in engineering and develop a socially acceptable solution, on the basis of limited and possibly contradictory information and differing perspectives. Additionally, students can gain awareness of broader responsibilities of engineers in the development of risky technologies, as well as the role of engineers in public debates and community engagement related to the adoption or development of risky technologies. 

This case study addresses two of the themes from the Accreditation of Higher Education Programmes fourth edition (AHEP4): The Engineer and Society (acknowledging that engineering activity can have a significant societal impact) and Engineering Practice (the practical application of engineering concepts, tools and professional skills). To map this case study to AHEP outcomes specific to a programme under these themes, access AHEP 4 here and navigate to pages 30-31 and 35-37. 

The dilemma in this case is presented in three parts. If desired, a teacher can use Part one in isolation, but Part two and Part three develop and complicate the concepts presented in Part one to provide for additional learning. The case allows teachers the option to stop at multiple points for questions and / or activities as desired.

 Learners have the opportunity to: 

Teachers have the opportunity to:  

 

Learning and teaching resources: 

Journal articles: 

Community engagement organisations: 

 

Dilemma – Part one:

You are an early career engineer working in the civil nuclear industry for Ultra Nuclear. This is a major company overseeing the construction of new power stations that has a strong reputation as a leader in the field with no controversies associated with its activity. Indeed, you have been impressed with Ultra Nuclear’s vision that the transition to using more nuclear energy can significantly reduce carbon emissions, and their development of next-generation nuclear technologies. After two years of working on the strictly technical side of the business, you have been promoted to a project manager role which requires you to do more public engagement. Your manager has assigned your first major project which involves making the plans for the development of a new power plant.  

 

Optional STOP for questions and activities: 

1. Activity: Societal context – What is the context in which Ultra Nuclear operates? Identify the national and supranational policies and regulation in your country related to the adoption of nuclear energy. Reflect on the broader rationale given for the adoption of nuclear energy. Research the history of nuclear technological developments (including opposition and failures) in your country. When tracing the context, you may consider:

2. Discussion: Personal values – What is your initial position on the adoption of nuclear energy? What are the advantages and disadvantages that you see for the adoption of nuclear energy in your country? What alternatives to nuclear energy do you deem more suitable and why?

3. Discussion: Risk perception – How do you perceive the risk of nuclear energy? How do your family and friends see this risk? How is nuclear energy portrayed in the media? Do you see any differences in how people around you see these risks? Why do you think this is so?

4. Activity: Risk mapping – Using a qualitative risk matrix, map the risks of a nuclear power plant.

 

Dilemma – Part two:

As it happens, this will be the first power plant established in the region where you were born, and your manager counts on your knowledge of the local community in addition to your technical expertise. To complete your project successfully, you are expected to ensure community approval for the new nuclear power plant. In order to do this, you will have to do some research to understand different stakeholders and their positions.  

 

Optional STOP for questions and activities:

1. Activity: Stakeholder mapping – Who are all the groups that are involved in the scenario? 

1.a. Activity: Read the article by Sven Ove Hansson, which puts forward a method for categorising stakeholders as risk-exposed, beneficiaries, or decision-makers (including overlaps of the three categories). Place each stakeholder group in one of these categories.

1.b. Discussion: Why are some groups risk-exposed, others beneficiaries, and others decision-makers? Why is it undesirable to have stakeholder groups solely in one of the categories? 

1.c. Discussion: What needs to change for some stakeholder groups to be not only in the category of risk-exposed, but also in the category of beneficiaries or decision-makers?  

2. Activity: Stakeholder mapping – How does each stakeholder group view nuclear energy? For each stakeholder group identified, research the arguments they put forward, their positions and preferences in regard to the adoption of nuclear energy. In addition to the stakeholder groups previously identified, you may consider:

For your research, you may consult the webpage of the stakeholder group (if it exists); any manifesto they present; mass media features (including interviews, podcasts, news items or editorials); flyers and posters. 

3. Discussion: How convincing are these arguments according to you? Do you see any contradictions between the arguments put forward by different groups? 

3.a. Discussion: Which group relies most on empirical data when presenting their position? Which stakeholders take the most extreme positions, according to you (radical either against or for nuclear energy), and why do you think this is so?  

3.b. Discussion: In groups of five students, rank the stakeholders from those that provide the most convincing to the least convincing arguments, then discuss these rankings in plenary. 

3.c. Roleplay (with students divided into groups): Each group is assigned a stakeholder, and gets to prepare and make the case for why their group is right, based on the empirical data and position put forward publicly by the group. The other groups grade on different criteria for how convincing the group is (such as 1. reliability of data, 2. rhetoric, 3. soundness of argument). 

4. Guest speaker activity: The instructor can invite as a guest speaker a representative of one of the stakeholder groups to talk with students about the theme of nuclear energy. Students can prepare a written reflection after the session on the topic of “What I learned about risks from the guest speaker” or “What I learned about my responsibility as a future engineer in regard to the adoption of nuclear energy.” 

 

Dilemma – Part three:

You arrive at the site of the intended power plant. You are received with mixed emotions. Although you are well liked and have many friends and relatives here, you are also warned that some residents are against the plans for the development of nuclear energy in the area. Several people with whom you’ve had informal chats have significant concerns about the power plant, and whether their health or safety will be negatively affected. At the same time, many people from the surrounding area do not yet know anything about the plans for building the nuclear site. In addition, in the immediate vicinity of the power plant site, the community hosts a small number of refugees who, having just arrived, are yet to be proficient in the language, and whose communication relies mostly on a translator. How will you ensure that this community is well informed of the plans for developing the power plant in their region and approves the plans of Ultra Nuclear? How will you engage with the community and towards what aims? 

 

Optional STOP for questions and activities: 

1. Activity: Research empirical data on the risk awareness and risk perception of public attitudes about nuclear energy, and sum up any findings that you find interesting or relevant for the case study. 

1.a. Discussion: According to you, is risk awareness and perception the same thing? How do they differ as concepts? Considering the research you just did, is there a relation between people’s risk awareness and perception? What does this imply? 

1.b Discussion: Do you identify any differences in the risk perception of the public (based on gender, age, geographical location, educational level)? Why do you think this is so?  

1.c. Discussion: Does the public see the same risks about nuclear energy as technical experts do? Why is this so? 

1.d. Activity: Read Sheila Jasanoff – The political science of risk perception. What is the key takeaway message for you?

2. Group activity: Compose a survey to understand the risk awareness and risk perception of members of the local community.

2.a. Discussion: What are the key questions for the survey? 

2.b. Discussion: How will you distribute the survey and to how many people? 

2.c. Discussion: Do you need to make any special arrangements to ensure that the views of all relevant groups are represented in the survey? 

2.d. Discussion: How will you use the data from the survey and how do you plan to follow-up on the survey?

3. Group activity: Develop a method for engaging with the community in the stages of developing and operating the nuclear plant.

3.a. Discussion: What values and principles do you highlight by engaging with the community? 

3.b. Discussion: How do you choose which participatory methods to use? 

You can use the following resources: Participation toolkit  or Performing Participatory Foresight Methods, Mazzurco and Jesiek, Bertrand, Pirtle and Tomblin. 

 

Annex:  

Localised case study: The development of Nuclear Energy in Ireland. 

Context description: Wikipedia entry for Nuclear power in Ireland and the Carnsore Point protests. 

Summary: 

The entire island of Ireland, comprising The Republic of Ireland and Northern Ireland (part of the UK), has never produced any electricity from nuclear power stations. Previous plans have been opposed as early as the 1970s through large public rallies, concerts, and demonstrations against the production of nuclear energy on the island. At the time, Carnsore Point was proposed as a site for the development of four nuclear reactors by the Electricity Supply Board. Public opposition led to the cancelling of this nuclear project and its replacement with a coal burning power station at Moneypoint. Since the 2000s there has been a renewed interest in the possibilities for producing nuclear energy on the island, in response to climate change and the need to ensure energy security. Surveys for identifying public acceptance and national forums have been proposed as ways to identify current perceptions and prospects for the development of nuclear energy. Nevertheless, nuclear energy in the Republic of Ireland is still prohibited by law, through the Electricity Regulation Act (1999). Nuclear energy is currently a contentious topic of debate, with many involved parties holding varying positions and arguments. 

Example of stakeholders: The Irish government; the UK government; political parties; electricity supply board (state owned electricity company); BENE – Better Environment with Nuclear Energy (lobby group); Friends of the Irish Environment (environmental group), Friends of the Earth – Ireland (environmental group); The Union of Concerned Scientists; Wind Aware (lobby group); local community (specified further based on demographic characteristics, such as the Traveller community); scientists in the National Centre for Plasma Science & Technology at Dublin City University (university researchers). 

Sources used for the description of the roles: Policy documents; official websites; institutional or group manifestos; news articles, editorials and other appearances in the media. 

 

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Any views, thoughts, and opinions expressed herein are solely that of the author(s) and do not necessarily reflect the views, opinions, policies, or position of the Engineering Professors’ Council or the Toolkit sponsors and supporters.

Case Enhancement: Choosing to install a smart meter

Activity: Technical integration – Practical investigation of electrical energy.

Author: Mr Neil Rogers (Independent Scholar).

 

Overview:

This enhancement is for an activity found in the Dilemma Part two, Point 1 section of the case: “Technical integration – Undertake an electrical engineering technical activity related to smart meters and the data that they collect.”

This activity involves practical tasks requiring the learner to measure parameters to enable electrical energy to be calculated in two different scenarios and then relate this to domestic energy consumption. This activity will give technical context to this case study as well as partly address two AHEP themes:

This activity is in three parts. To fully grasp the concept of electrical energy and truly contextualise what could be a remote and abstract concept to the learner, it is expected that all three parts should be completed (even though slight modifications to the equipment list are acceptable).

Learners are required to have basic (level 2) science knowledge as well as familiarity with the Multimeters and Power Supplies of the institution.

Learners have the opportunity to:

Teachers have the opportunity to:

 

Suggested pre-reading:

To prepare for these practical activities, teachers may want to explain, or assign students to pre-read articles relating to electrical circuit theory with respect to:

 

Learning and teaching resources:

 

Activity: Practical investigation of electrical energy:

Task A: Comparing the energy consumed by incandescent bulbs with LEDs.

1. Power in a circuit.

By connecting the bulbs and LEDs in turn to the PSU with a meter in series:

a. Compare the wattage of the two devices.

b. On interpretation of their data sheets compare their luminous intensities.

c. Equate the quantity of each device to achieve a similar luminous intensity of approximately 600 Lumens (a typical household bulb equivalent).

d. now equate the wattages required to achieve this luminous intensity for the two devices.

 

2. Energy = Power x Time.

The units used by the energy providers are kWh:

a. Assuming the devices are on for 6 hours/day and 365 days/year, calculate the energy consumption in kWh for the two devices.

b. Now calculate the comparative annual cost assuming 1 kWh = 27p ! (update rate).

 

3.  Wider implications.

a. Are there any cost-benefit considerations not covered?

b. How might your findings affect consumer behaviour in ways that could either negatively or positively impact sustainability?

c. Are there any ethical factors to be considered when choosing LED lightbulbs? For instance, you might investigate minerals and materials used for manufacturing and processing and how they are extracted, or end-of-life disposal issues, or fairness of costs (both relating to production and use).

 

Task B: Using a plug-in power meter.

1. Connect the power meter to a dishwasher or washing machine and run a short 15/30 minute cycle and record the energy used in kWh.

2. Connect the power meter to a ½ filled kettle and turn on, noting the instantaneous power (in watts) and the time taken. Then calculate the energy used and compare to the power meter.

3. Connect the power meter to the fan heater and measure the instantaneous power. Now calculate the daily energy consumption in kWh for a fan heater on for 6 hours/day.

4. Appreciation of consumption of electrical energy over a 24 hour period (in kWh) is key. What are the dangers in reading instantaneous energy readings from a smart meter?

 

Task C: Calculation of typical domestic electrical energy consumption.

1. Using the list of items in Appendix A, calculate the typical electrical energy usage/day for a typical household.

2. Now compare the electrical energy costs per day and per year for these three suppliers, considering how suppliers source their energy (i.e. renewable vs fossil fuels vs nuclear etc).

 

Standing charge cost / day Cost per kWh Cost / day Cost / year
A) 48p 28p
B) 45p 31p
C) 51p 27p

 

3. Does it matter that data is collected every 30 minutes by your energy supplier? What implications might changing the collection times have?

4. With reference to Sam growing marijuana in the case, how do you think this will show up in his energy bill?

 

Appendix A: Household electrical devices power consumption:

Typical power consumption of electrical devices on standby (in Watts).

Wi-Fi router 10
TV & set top box 20
Radios & alarms 10
Dishwasher  5
Washing machine  5
Cooker & heat-ring controls 10
Gaming devices 10
Laptops x2 10

 

Typical consumption of electrical devices when active (in Watts) and assuming Gas central heating.

TV & set top box (assume 5 hours / day) 120
Dishwasher (assume 2 cycles / week) Use calculated
Washing machine (assume 2 cycles / week) Use calculated
Cooking (oven, microwave etc 1 hour / day) 1000
Gaming devices (1 hour / day) 100
Laptop ( 1 hour / day) 70
Kettle (3 times / day) Use calculated
Heating water pump (2 hours / day) 150
Electric shower (8 mins / day) 8000

 

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Theme: Research

Authors: Dr Grazia Todeschini (King’s College London) and Kah Leong-Koo (National Grid UK)

Keywords: Electrical Engineering, Power Systems, Renewable Energy, Computer Model

Abstract: This case study deals with a collaboration between KCL and National Grid on a EPSRC project. The project deals with assessing the impact of renewable energy sources on the electricity grid. This assessment will be carried out by using a transmission grid model provided by National Grid and device models developed by KCL.

 

Topic of the case study

This case study deals with the development of advanced models to study the impact of renewable energy sources, and more in general, inverter-based devices, on the UK transmission grid. More specifically, this project focuses on the impacts in terms of voltage and current distortion. This topic is referred to as ‘power quality’ in the specialist literature.

Aims

This research was motivated by various reports presented in the technical literature in the last decade, where a general increase of harmonic levels has been observed. A similar trend has been reported in several countries, simultaneously to the installation of increasing levels of renewable energy sources and other inverter-based devices. These reports have created some concerns about harmonic management in the future, when more renewable energy sources will be in services. Ultimately, the project aims at forecasting harmonic levels in 2050, and at determining impact on the equipment, and possible mitigating solutions.

Collaborating parties

This case study involved the collaboration between the Department of engineering at King’s College London and National Grid UK.

Project set up

Power quality is a specialist area within power systems that deals with deviation of voltage and current waveforms from the nominal values, in terms of both amplitude and frequency. The academic PI worked for a few years in the power industry, with the aim of specialising in power quality and understanding the issues faced by the power industry, as well as the tools that are used to carry out power system studies. The industrial PI is an expert in the area of power quality and has been involved with many standardisation groups as well as professional organisation to help developing common tools to harmonise the approach to power quality. Therefore, the two PIs have a similar expertise and background that allowed them to discuss and define common areas of research. When looking to develop such a specialist project, it is very important that all parties involved have a common ground, so that it is possible to interact and work in the same direction.

Outcomes

The project is still not finished, however, some of the original objectives have been achieved:

  1. A 2050 scenario has been developed, by using: transmission system model data provided by National Grid, device models developed through research and testing, and identification of future locations of renewable energy sources. Although the case is still under development, preliminary results indicate that harmonic levels are expected to increase, but they can be managed using existing design practice.

Lessons learned, reflections, recommendations

Further resources

We published two papers and others are in preparation:

 

Any views, thoughts, and opinions expressed herein are solely that of the author(s) and do not necessarily reflect the views, opinions, policies, or position of the Engineering Professors’ Council or the Toolkit sponsors and supporters.

Theme: Universities’ and business’ shared role in regional development 

Authors: Amer Gaffar (Manchester Metropolitan University); Dr Ian Madley (Manchester Metropolitan University); Prof Bamidele Adebisi (Manchester Metropolitan University).

Keywords: Decarbonisation; Local Energy; Skills; Economic Growth.

Abstract: Greater Manchester (GM) has committed to carbon neutrality by 2038. There is a 97m tonnes carbon emission gap between solutions currently available and a net zero budget. To bridge this innovation gap under the leadership of the Greater Manchester Combined Authority the agency brings together: Bruntwood, Hitachi, MMU, UoM, GM Growth Company, SSE and UoS to support R&D and innovation initiatives focused on customer pull to enable rapid deployment of new and emerging technologies, services and business models to meet the challenge of GM becoming a carbon neutral city-region by 2038, drive skills development and deliver economic growth.

 

The need for an Energy Innovation Agency

The Mayor for Greater Manchester Combined Authority (GMCA) has committed the city region to carbon neutrality by 2038.  An analysis of the implications of the Paris Climate Change Agreement for Greater Manchester (GM) (Figure 1) has identified that there is a 97m tonnes carbon emission gap between solutions currently available and the actions needed to reach net zero.  We refer to this as the Innovation Gap.

 
Figure 1 GM Net Zero Carbon Budget and implementation pathways. Source GM 5-year Environment Plan [1]

 

[2] Unconstrained implementation of Scatter methods
Achievable implementation of Scatter methods

 

To bridge the GM innovation gap under the leadership of GMCA the agency brings together: Bruntwood, Hitachi, Manchester Metropolitan University, University of Manchester, SSE and  University of Salford to support R&D and innovation initiatives focused on customer pull to enable rapid deployment of new and emerging technologies, services and business models (energy innovations) to meet the challenge of GM becoming a carbon neutral city-region by 2038, driving skills development and delivering economic growth.

Forming the Energy Innovation Agency

GMCA initially approached the city’s three universities to seek advice on how their academic expertise could be harnessed to help bridge the innovation gap.  This quickly led to discussions between each of the universities that identified a wide pool of complementary, and largely non-competitive, areas of research expertise that could address the gap (Figure 2).      

Figure 2 Research expertise by university partner – darker colour indicates a greater depth of expertise in the area.

 

It was also clear that the timescales needed to deliver city wide change would not fit within a traditional academic approach to research and knowledge transfer that required a public-private partnership.

At the core of this partnership approach are three key components.

Using existing networks, a core team comprising GMCA, Bruntwood, Hitachi, MMU, UoM, SSE and UoS came together to develop the business plan for the agency and to jointly provide the funding for the first three-years of the operation of the agency.

Vision, Aims and Objectives

To accelerate the energy transition towards a carbon-neutral economy by bridging the energy innovation gap, increasing the deployment of innovative energy solutions in GM and beyond, to speed-up the reduction of carbon emissions.

Aims:

  1. Innovation Exploitation: supporting and scaling the most promising decarbonised energy innovations to maximise the early adoption of effective carbon-neutral energy systems.
  2. Decarbonisation: reducing Greater Manchester’s carbon emissions from energy to meet our ambitious target to be a carbon-neutral city region by 2038
  3. Rapid Commercialisation: rapid transition of carbon-neutral energy innovations to full-scale integration.
  4. Investment: creating and promoting investment opportunities for carbon-neutral energy innovations and projects in the city region.

Objectives:

Scope

With a population of 2.8 million covering 1,277 km2 the ten metropolitan boroughs of GMCA comprises the second most populous urban area in the UK, outside of London. The scope and potential for the Energy Innovation Agency is huge.

 

Figure 3 GMCA Energy Transition Region showing local authority boundaries.

 

Establishing the GM-city region area as an Energy Transition Region will provide the opportunity to develop the scale of deployment necessary to go beyond small-scale demonstration projects and develop the supply chains that can be replicated as a blue-print  elsewhere in urban environments across the UK and internationally.

Progress to date

Following the investment by the founding partners a management team has been established within GMCA’s subsidiary “The Growth Company”.  An independent board chaired by Peter Emery CEO ENWL has also been established.

The formal launch event will take place on 28th April 2022, at which a first challenge to the innovation community to bring forward solutions to decarbonise non-domestic buildings  will be set.

Key contacts and further information

Energy Innovation Agency

Case Study

Amer Gaffar, Director Manchester Fuel Cell Innovation Centre, Manchester Metropolitan University a.gaffar@mmu.ac.uk

References

[1] https://www.greatermanchester-ca.gov.uk/media/1986/5-year-plan-branded_3.pdf

[2] Kuriakose, J., Anderson, K., Broderick, J., & Mclachlan, C. (2018). Quantifying the implications of the Paris Agreement for Greater Manchester. https://www.research.manchester.ac.uk/portal/files/83000155/Tyndall_Quantifying_Paris_for_Manchester_Report_FINAL_PUBLISHED_rev1.pdf

 

Any views, thoughts, and opinions expressed herein are solely that of the author(s) and do not necessarily reflect the views, opinions, policies, or position of the Engineering Professors’ Council or the Toolkit sponsors and supporters.

Authors: Professor Mike Sutcliffe (TEDI-London); Professor Mike Bramhall (TEDI-London); Prof Sarah Hitt SFHEA (NMITE); Johnny Rich (Engineering Professors’ Council); Professor Dawn Bonfield MBE (Aston University); Professor Chike Oduoza (University of Wolverhampton); Steven Kerry (Rolls-Royce); Isobel Grimley (Engineering Professors’ Council).

Topic: Smart meters for responsible everyday energy use.

Engineering disciplines: Electrical engineering

Ethical issues: Integrity, Transparency, Social responsibility, Respect for the environment, Respect for the law

Professional situations: Communication, Privacy, Sustainability

Educational level: Beginner

Educational aim: To encourage ethical motivation. Ethical motivation occurs when a person is moved by a moral judgement, or when a moral judgement is a spur to a course of action. 

 

Learning and teaching notes:

This case is an example of ‘everyday ethics’. A professional engineer must give advice to a friend about whether or not they should install a smart meter. It addresses issues of ethical and environmental responsibility as well as public policy, financial burdens and data privacy. The case helps to uncover values that underlie assumptions that people hold about the environment and its connection to human life and services. It also highlights the way that those values inform everyday decision-making.

This case study addresses two of AHEP 4’s themes: The Engineer and Society (acknowledging that engineering activity can have a significant societal impact) and Engineering Practice (the practical application of engineering concepts, tools and professional skills). To map this case study to AHEP outcomes specific to a programme under these themes, access AHEP 4 here and navigate to pages 30-31 and 35-37.

The dilemma in this case is presented in three parts that build in complexity. If desired, a teacher can use Part one in isolation, but Part two and Part three develops and complicates the concepts presented in Part one in order to provide additional learning. The case allows teachers the opportunity to stop at various points to pose questions and/or set activities.

Learners have the opportunity to:

Teachers have the opportunity to:

 

Learning and teaching resources:

 

Summary – Part one:

Sam and Alex have been friends since childhood. As they have grown older, they have discovered that they hold very different political and social beliefs, but they never let these differences of opinion get in the way of a long and important friendship. In fact, they often test their own ideas against each other in bantering sessions, knowing that they are built on a foundation of respect.

Sam works as an accountant and Alex has become an environmental engineer. Perhaps naturally, Alex often asks Sam for financial advice, while Sam depends on Alex for expert information related to sustainability and the environment. One day, knowing that Alex is knowledgeable about the renewable energy industry and very conscious of the impact of energy use at home, Sam messages Alex to say he is getting pressure from his energy company to install a smart meter.

Sam has been told that smart metering is free, brings immediate benefits to customers by helping them to take control of their energy usage, and is a key enabler for the transition away from fossil fuels use and towards the delivery of net zero emissions by 2050. Smart meters give consumers near real-time information on energy use, and the associated cost, enabling them to better manage their energy use, save money and reduce emissions. A further benefit is that they could charge their electric car far more cheaply using a smart meter on an overnight tariff.

Yet Sam has also read that smart meters ‘go dumb’ if customers switch providers and, as a pre-payment customer, this option may not be available with a smart meter. In addition, Sam suspects that despite claims that the smart meter roll out is free, the charge is simply being passed on to customers through their energy bills instead. Alex tries to give Sam as much good information as possible, but the conversation ends with the decision unresolved.

 

Optional STOP for questions and activities: 

1. Discussion and activity: Personal values – We know that Sam and Alex have different ideas and opinions about many things. This probably stems from a difference in how they prioritise values. For instance, valuing transparency over efficiency, or sustainability over convenience. Using this values activity as a prompt, what personal values might be competing in this particular case?

2. Discussion and activity: Everyday ethics – Consider what values are involved in your everyday choices, decisions, and actions. Write a reflective essay on three events in the past week that, upon further analysis, have ethical components.

3. Discussion: Professional values – Does Alex, as an environmental engineer, have a responsibility to advocate installing smart meters? If so, does he have more responsibility than a non-engineer to advocate for this action? Why, or why not?

4. Discussion: Wider impact – Are there broader ethical issues at stake here?

5. Activity: Role-play a conversation between Sam and Alex that includes what advice should be given and what the response might be.

 

Dilemma – Part two:

After getting more technical information from Alex, Sam realises that, with a smart meter, data on the household’s energy usage would be collected every 30 minutes.  This is something they had not anticipated, and they ask a number of questions about the implications of this. Furthermore, while Sam has already compared tariffs and costs as the main way to choose the energy provider, Alex points out that different providers use different energy sources such as wind, gas, nuclear, coal, and solar. Sam is on a tight budget but Alex explains that the cheaper solution is not necessarily the most environmentally responsible choice. Sam is frustrated: now there is something else to consider besides whether or not to install the smart meter.

 

Optional STOP for questions and activities:  

1. Activity: Technical integration – Undertake an electrical engineering technical activity related to smart meters and the data that they collect.

2. Activity: Research what happens with the data collected by a smart meter. Who can access this data and how is privacy protected? How does this data inform progress towards the energy transition from fossil fuels?

3. Activity: Research different energy companies and their approach to responsible energy sourcing and use. How do these companies communicate that approach to the public? Which company would you recommend to your friend and why?

4. Activity: Cost-benefit analysis – Sometimes the ethical choice is the more expensive choice. How do you balance short- and long-term benefits in this case? When, if ever, would it be ethically right to choose energy from non-renewable sources? How would this choice differ if the context being considered was different? For example, students could think about responsible energy use in industrialised economies versus the developing world and energy justice.

 

Dilemma – Part three:

Following this exchange with Sam, Alex becomes aware that one of the main obstacles in energy transition concerns communication with the public. Ideally, Alex wants to persuade family and other friends to make more responsible choices; however, it is clear that there are many more factors involved than can be seen in one glance. This includes what kinds of pressure is put on consumers by companies and the government. Alex begins to reflect on how policy drives what engineers think and do, and joins a new government network on Engineering in Policy.  

Alex and Sam meet up a little while later, and Sam announces that yes, a smart meter has been installed. At first Alex is relieved, but then Sam lets it slip that they are planning to grow marijuana in their London home. Sam asks whether this spike in energy use will be picked up as abnormal by a smart meter and whether this would lead to them being found out.

 

Optional STOP for questions and activities:  

1. Discussion: Personal values – What are the ethics involved in trying to persuade others to make similar choices to you?

2. Discussion and activity: Legal responsibility – What should Alex say or do about Sam’s disclosure? Role-play a conversation between Sam and Alex.

3. Discussion: Professional responsibility – What role should engineers play in setting and developing public policy on energy?

4. Activity: Energy footprint – Research which industries use the most energy and, on a smaller scale, which home appliances use the most energy.

 

Enhancements:

An enhancement for this case study can be found here.

 

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Any views, thoughts, and opinions expressed herein are solely that of the author(s) and do not necessarily reflect the views, opinions, policies, or position of the Engineering Professors’ Council or the Toolkit sponsors and supporters.

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