Tag Archives: Centre for Energy

EDI Blog Series: Challenges in Your Career Pathway

About the Author:

Professor Sara Walker is the Director of The Centre for Energy, in the School of Engineering. Her research focusses on renewable energy and energy efficiency in buildings, energy policy, energy resilience, and whole energy systems.

Sara is Director of the EPSRC National Centre for Energy Systems Integration, Deputy Director of the EPSRC Supergen Energy Networks Hub, and Deputy Research Director of the Active Building Centre.

 

My journey to Professorship

In November of 2021 I was promoted to Professor of Energy at Newcastle University. This has felt like such a career landmark for me.

I was brought up by my parents in Cramlington, a town to the north of Newcastle. When I was young my father was made redundant and the family moved into council housing. I never considered myself as poor, but I do remember we grew potatoes in the garden to save on food shopping and me and my younger sister would wear hand-me-down clothes. My older sister left school at 16 and got a job working in hospitality, and as my parents’ financial situation improved they were able to purchase their council house, but we were by no means affluent! At 15 I got a Saturday job at Whitley Bay ice rink in the cafeteria, and I started to earn my own money which was very empowering.

When I went to university at Leicester I noticed that my financial situation wasn’t the same as others around me. I had a grant from the council to cover most of my living costs and my parents also contributed to top my grant up. I got a part time job working at the bar in the students union, and also worked part time in a local pub. During summer vacations I always worked, normally bar work. I remember waiting to use the public telephone one weekend to chat to my parents whilst at university, and watching the person on the phone in front of me crying crocodile tears to her dad. She needed money to buy a ball gown since it wasn’t fair for her to be expected to wear her existing ball gown that she’d already worn. That’s when it really struck me that some of my fellow students were really well off! I didn’t join expensive societies like skiing and horse riding, I didn’t go to lots of balls and social events. For my graduation ball I hired my dress.

When I finished my undergraduate course in physics I was offered a PhD by my personal tutor at the university. I didn’t really know what a PhD was, I had been first in my family to go to university, and I turned it down. Instead, I did a teacher training course and got a job as teacher. After teaching for a short while I decided to go back to university to do a masters course in environmental science, because I had got really interested in energy issues through voluntary work. This led onto a research job, and an opportunity to complete a PhD part time whilst working as a researcher. I think this is the only way I could have completed a PhD since I didn’t have the financial resources to support myself on a student bursary. The part time PhD took five years whilst I worked as researcher and during that time I had my son Toby.

My early experience of academia was still affected by my background somewhat. I had to think carefully about attending academic conferences, because I didn’t know how long it would take for my expenses to be paid back. One time an expensive overseas trip wasn’t paid in time before I had to pay the credit card bill, and I could only pay the minimum and incurred interest, something I couldn’t claim back from my employer. Conference dinners were a minefield, I didn’t have lots of spare cash to spend on cocktail dresses. Even work suits were often bought from the catalogue and paid for monthly when I first started out. Later in my career, financially and socially I found myself excluded from social events and the associated networking opportunities of corporate boxes at football, or golf at exclusive members courses.

Academic statistics do not portray the full picture

HESA statistics are available, to tell us something of the makeup of our UK professoriate. In 2019/20 there were 22,810 professors, of which 6,345 are “female”, 16,415 “male” and 50 “other” gender. Of the 21,055 professors with known ethnicity, 2,285 are BME. 735 professors are known to have a disability. Looking just at engineering, this discipline areas has the lowest proportion of female academics (see figure below). There are no statistics for socio-economic group, and no statistics for intersectionality (i.e. we don’t know how many BME are female, or how many BME have a disability, for example). There are also statistics for grant applications and success from EPSRC, by gender. Data for other protected characteristics are lacking.

 

Source: Departmental demographics of academic staff

Source: EPSRC Understanding our Portfolio

I am acutely aware of the lack of role models in academia from lower socio-economic backgrounds. But there are also a lack of role models who are LGBTQ+, minority ethnic, disabled, non-white, from different faiths, or any combination of these. In seeking out these role models, we expect people to be open about their protected characteristics, regardless of the discrimination this may attract.

Raising up colleagues, giving equality of opportunity, and being more aware of the potential barriers to engagement, are approaches we are taking at Newcastle University’s Centre for Energy. For example, we are working hard to encourage involvement from all job families in the Centre for Energy – research as an activity spans so many jobs including project managers, technicians, finance, research students, research staff and academic staff, for example. We want the Centre itself to address issues of fairness and equity in energy research, and so we have a theme on Justice, Governance and Ethics. We are tackling global issues of energy transition, issues which need a range of perspectives across gender, race, (dis)ability, sexual orientation and religion in order to come up with solutions that work for the majority, and not the select few.

I have a strong northern accent, and am proud of my roots and to be back in the north east working at a Russell Group university. But I am still that kid from the council estate. And I am proud of that too.

 

The Energy Sector and UK Recovery in the Wake of the COVID Pandemic

About the Author

Dr Sara Walker is currently a Reader in Energy and Director of The Centre for Energy as well as Director of the National Centre for Energy Systems Integration and Deputy Director of the Supergen Energy Networks Hub in the School of Engineering at Newcastle University. Her research is on energy efficiency and renewable energy at the building scale.

Resilience and the need for Change?

The COVID pandemic has, for some sectors of UK society and business, brought into sharp relief the need for change. Resilience is today’s buzzword, along side opaque phrases such as “build back better”. How can we put some detail to the call for a “better” future? And what does this mean for the UK energy sector as we look to transform towards 2050 commitment?

Climate Change Emergency

Many are likely to be redefining their understanding of key worker as our vital infrastructure keeps the wheels of society turning. The energy sector is a critical infrastructure for the UK, confirmed by the UK Government at the height of the COVID lockdown[1]. Whilst our energy utilities focus on keeping the country supplied with electricity, gas, oil and LPG, for example, they do so in a period of uncertain customer demand, since there is no historical precedent for the extent of economic lockdown which the UK has experienced. Whilst we deal with these pressures in the short term, longer term issues of climate change and the Government target of net zero greenhouse gas emissions by 2050 cannot afford to be ignored. The Conference of the Parties 2020 in Glasgow may have been postponed for a year, but there is no pause in the evidence of climate change as May 2020 was 0.95°C above the average[2].

How to address these long term issues? To look for win-wins with the short term COVID-recovery issue is a start. The lockdown has resulted, across the UK, in dramatic reduction in traffic and air pollution (see, for example, https://covid.view.urbanobservatory.ac.uk/#intro). In the mobility space, the need for physical distancing has opened up conversations about pavement widths, safe space for cycling and redesigning our spaces to enable walking and cycling and to enable sufficient physical distancing.

Figure 1. Proposed increase in public walking and cycling space in Newcastle city centre
Figure 2. Novel analysis by Newcastle University of pedestrian spacing, to evaluate adherence to physical distancing guidelines and identify locations where physical distancing is constrained.

Energy Sector Pressures

With vast numbers working and studying at home, the electricity sector has seen overall demand drop (as industrial and commercial loads reduce) but increases in use at home. At particular times during the COVID lockdown, we have had periods of relatively low demand for electricity and relatively high proportions of inflexible electricity generation (for example nuclear, wind and solar). This is an issue for supply-demand balancing for electricity in particular, since balancing is needed in order to keep the system frequency within certain quality boundaries. The UK power sector is seen as a world-leading industry, and solutions here have relevance to power systems across the globe.

Balancing is likely to be an issue moving forward with more renewable generation, and so we need to identify appropriate sources of flexibility for our energy systems.

There are two possible sources of flexibility which we would like to highlight here. Integration with the gas network, and active buildings.

System Integration and the Role of Gas and Hydrogen

The future UK energy system is of course uncertain, it is difficult to predict what it will be like in 2050. But we do know that system investment now will still be part of the 2050 operational system. So it is vital that our decisions are with 2050 in mind, rather than interim targets on the journey to net zero. Scenarios by a multitude of organisations generally see a greater role for electricity in the space heating and transport sectors, and decarbonisation of electricity through greater use of renewable energy technologies.

One way to address the issue of balancing for the electricity sector, in this future of greater demand and greater use of renewables, is to better integrate electricity and gas. This would then enable the two energy vectors to mutually support one another in times of stress. In particular, there are options to enable the generation of hydrogen using electricity at time of excess generation compared with demand. This hydrogen can then be stored in the gas network, which could be hydrogen ready by 2030[3]. Hydrogen is of significant interest for the UK Government for applications in industry, in transport (particularly marine, long distance and heavy road, air and rail transport).

Repurposing of the existing natural gas network has benefit of reduced stranded assets, and substitution of hydrogen into the gas system at mixes of up to 20% can enable the UK to begin the demonstration phase prior to full scale roll out of a hydrogen system.

InTEGReL is a new integrated energy test and demonstration facility in Gateshead, north east England. Led by Northern Gas Networks and in partnership with Northern Powergrid and Newcastle University, the facility is a second phase demonstrator for the HyDeploy project, to test the blend of hydrogen in natural gas networks for a range of customers and networks.

Flexibility in Demand – The Role of Active Buildings

10% of UK households (2018 figure) are classed as being in fuel poverty, although up to date figures are unavailable. Longer term impacts to incomes of households during an economic downturn, and increased energy use by households, are likely to push numbers of fuel poor upwards. The UK faces a significant risk, as we move towards colder winter months, of a growth in cold-related illness and excess winter deaths at the same time as our NHS struggles to recover from COVID.

A win-win is to address the poor housing stock in the UK. A retrofit stimulus aimed at the construction sector has a significant advantage in terms of job creation. Furthermore, these are local jobs, contributing to the Government’s ambition to “level-up” the regions and nations of the UK. Retrofit investment has the potential to move households out of fuel poverty. Energy efficiency has been highlighted by a number of organisations as a vital element of a green economic recovery for the UK[4] [5]. By improving our housing stock in a way which enables the building to play an active role on energy networks, the buildings can also provide flexibility to those networks. This might involve using more energy at times when it is abundant and cheap, charging up electric vehicles and filling heat and electrical storage in the home. It might also involve demand reduction at times of network stress and demand peak. So this might involve using local generation, home energy storage, and turning down or off certain loads (such as heat pumps).

Conclusion

The case for change in our energy sector was powerful pre-Covid, it is even more so today.  In light of the Government’s own 2050 target, we must not lose this catalytic moment to take action.  There is much to do, and taking urgent action trumps more debate and prevarication.  The energy transition is no longer an aspiration, it is an imperative.

The full article is available to view.

[1] https://www.gov.uk/government/publications/coronavirus-covid-19-maintaining-educational-provision/guidance-for-schools-colleges-and-local-authorities-on-maintaining-educational-provision

[2] https://www.ncei.noaa.gov/news/global-climate-202005

[3] Iron Mains Replacement Programme is replacing gas mains iron pipework with polyethylene pipes, which can be used with hydrogen.

[4] https://www.mckinsey.com/business-functions/sustainability/our-insights/how-a-post-pandemic-stimulus-can-both-create-jobs-and-help-the-climate#

[5] https://www.ippr.org/research/publications/faster-further-fairer