Category Archives: Renewable Energy

Solar power on campus: Harnessing renewable energy to power our university.

Why is renewable energy important?

As attested in UN Sustainable Development Goal 7, ensuring that our power is being generated renewably is a vital part of meeting climate goals, whether national, international, or across individual organisations (White, 2024). Here at Newcastle University, lighting accounts for around 20% of our energy use alone, but electricity is also used to power many building’s heating, cooling, and ventilation systems, our fleet of electric vehicles, our PCs, server banks, lab equipment, and more. With so much of the University drawing on electrical power, therefore, generating renewable energy on campus can have a huge impact on reducing the emissions of our facilities and operations. One technology that has proven invaluable in our efforts to increase local renewable energy production is solar power.

Image: A view of the Frederick Douglass Centre’s solar system with the Catalyst, Core, Lumen, and Spark buildings in the background. Credit: Author.

What’s happening at our university?

Solar Photovoltaics (PV) have been producing power since the 19^th Century but have only really become commonplace in the last few decades as lowering costs and improving efficiencies have made the technology increasingly commercially viable (Mulvaney, 2019). One of the chief benefits of solar PV is its versatility. Solar arrays can produce power wherever there is good access to daylight (a full explanation of how solar PV works can be found in this blog) and can be deployed on building roofs to easily integrate power production into dense urban environments (Hayat et al., 2019). This adaptability has allowed the University to install solar arrays on a wide variety of buildings across our city centre campus, and these systems generate power right where it’s needed most.

Image: Maps of the University’s city centre estates. University owned buildings have a thicker border around them, those highlighted in solid yellow have solar power systems installed, and those highlighted with yellow stripes have solar systems currently under construction. Credit: Author.

As the above maps show, solar arrays have been installed across campus including on buildings such as the Henry Daysh, Great North Museum Hancock, the Catalyst, and every block of the Park View Student Village. Our teams are also continually working to expand the amount of solar power we generate at the University and we’re currently constructing a new system on top of the Philip Robinson Library. Additionally, as we add new arrays, we’re constantly looking to expand their capacity and our recently finished Sports Centre system, now the largest at the University, generates as much power in under 2 days as an average UK household consumes in a year! Elsewhere, arrays have been designed to meet the entire daytime power demands of buildings – such as in our Frederick Douglass Centre, who’s generation data can be seen below.

Image: A graphic displaying the amount of energy at the University’s Frederick Douglass Centre that is being pulled from the grid vs from the building’s solar array in the early afternoon of 13.05.2024 (note: all values are estimates). Credit: Author.

A combined approach

The effects of the University’s solar power arrays are already being felt across our organisation. In addition to the savings on energy bills these systems are creating, the University is also saving tens of thousands of kilograms of CO2e across our facilities. Following these successes, we’ll continue to install new solar PV systems across our campus and beyond while working to complement these projects with other renewable and low carbon infrastructure initiatives. Examples of these complimentary improvements include:

Our low carbon factor combined heating and power engine in the Merz Court Energy Centre which utilises biofuel to provide electricity and hot water with a high degree of efficiency and a far lower comparative carbon footprint.
Projects to link the district heating networks we have across our city centre campus, improving efficiencies and reliability as systems help to pick up each other’s slack and can optimise over a wider area.
Our long-term campus-wide LED works to replace all indoor room lighting across our organisation with energy efficient LEDs. We’re now well over halfway through this decade long project!
The energy supply deal we’ve struck with The Energy Consortium to supply our buildings and facilities with zero carbon power from the grid.

Image: Solar panels on top of the Henry Daysh Building with other University buildings, including the Bedson and Armstrong Buildings, as well as St James’s Park, visible in the background. Credit: Charlotte Robson.

Many thanks to Irene Dumistrascu-Podogrocki and Luke Whittaker for helping with this blog and enormous thanks also to colleagues from the various teams, including projects and improvements, that are working hard alongside ourselves to bring renewable and low-carbon power to our campus. If you’re interested in finding out more, our website has further information on carbon and energy, we have blogs on our energy management system and wind power at the University, and the Sustainability Network gives regular updates on our projects and work across campus.

References

Hayat, M.B., Ali, D., Monyake, K.C., Alagha, L., Ahmed, N. (2019) ‘Solar energy – A look into power generation, challenges, and a solar-powered future’, International Journal of Energy Research. 43 (3). pp. 1049–1067.

Mulvaney, D. (2019) Solar Power: Innovation, Sustainability, and Environmental Justice. 1st ed. Oakland, California: University of California Press.

White, J.K. (2024) The Truth About Energy: Our Fossil-Fuel Addiction and the Transition to Renewables. Cambridge: Cambridge University Press.

Catching the Tailwinds: Wind power and the green energy transition at Newcastle University

What is Wind Power?

Wind power is a renewable source of energy that harnesses the kinetic force of natural air flows. To do this, turbine blades are angled so that the passing winds push against them and transfer their energy into rotational movement. This movement then drives a generator that transforms the kinetic energy into electrical power. Similar processes, minus the last step, have been utilised for millennia for purposes including milling grain, pumping water, and, in their simplest form, navigating oceans. Since the 1970s, however, the technology’s potential to generate electricity at scale has led to a gradual modern resurgence of wind power as a useful tool in the global transition towards cleaner and greener energy (Chiras, 2010). To understand how Newcastle University is responding and contributing to this transition, I’ve drawn on the expertise of Professor of Offshore Engineering, Zhiqiang Hu, to explore some of the exciting projects in progress across our organisation.

Image: Turbines at the Port of Blyth. Credit: Graeme Peacock.

The University’s wind research and collaborations

Our University has a range of talented researchers working across a variety of wind power technologies and among of the most promising of these is offshore wind generation. Placing wind turbines offshore (sometimes a long way out at sea!) allows them to be far larger than their land-based siblings which boosts generation capacity while avoiding taking up precious space on land. As a result, the offshore wind industry is developing quickly as an important way to meet the global demand for decarbonisation. This is creating a wealth of challenges and opportunities for those working in the sector and Newcastle University has a strong position within this dynamic landscape thanks to two key factors.

Firstly, the University has attracted attention from a variety of leading energy and engineering companies thanks to both our wealth of specialist knowledge and the forward-looking approach to sustainability that we take throughout our institution. Our researchers are working on a variety of cutting-edge themes, specialising particularly in the strength and integrity of wind turbines, their operation and maintenance, and developing ways to store their excess generation as hydrogen! Meanwhile, to help power this research, the University has entered a long-term deal to acquire wind power from Statkraft – a major European wind power supplier.

Secondly, the North-East is also a busy place for offshore wind power industrially, due both to the region’s existing maritime infrastructure and the vast wind farm being developed at nearby Dogger Bank in the North Sea. This wind farm, projected to be the largest in the world, has created a strong local offshore wind power supply chain, further attracting investment and collaboration with leading companies eager to work with local centres of expertise such as our University. These factors have led to a variety of exciting projects collaborating with industry including:

Professor Hu’s work to collaborate with colleagues and companies, including ORE Catapult, Hywind Scotland, and Equinor, to develop technologies (including using AI (Chen et al., 2021)) that will help maintain floating wind turbines at sea.
The University’s Hydrodynamics Laboratories in the Armstrong Building have been working with Balmoral to develop their HexDefence technology to avoid scouring issues at the base of offshore turbines (read more about scouring here (Zhang et al., 2023)).
Newcastle University’s Marine Zero PhD Centre has been supporting TechnipFMC on a project to develop dynamic cable monitoring technology to ensure that power gets back to land safely from the turbines out at sea.

Image: Turbines in the Black Forest above Freiburg. Credit: author.

Impact beyond the University

The varied partnerships and research projects underway at our University are creating opportunities and positive change within our organisation, but the work that’s being done here is having impacts far beyond the streets of our campus. Here, the University’s work contributes to positively impacting the emissions profile of the entire North East, proving the possibilities of decarbonising UK higher education, and providing vital knowledge that will contribute to the global green energy transition!

Enormous thanks to Professor Hu for the expert insight he provided for this article, you can see more of his work here. Finally, to stay fully up to date on sustainability news across our University, keep checking our regular blogs and contact us at the Sustainability Team to be added to our monthly newsletter!

References

Chen, P., Jia, C., Ng, C., and Hu, Z. (2021) ‘Application of SADA method on full-scale measurement data for dynamic responses prediction of Hywind floating wind turbines’, Ocean Engineering. Volume 239.

Chiras, D. (2010) Wind power basics: a green energy guide. New York: New Society Publishers.

Zhang, F., Chen, X., Yan, J., and Gao, X. (2023) ‘Countermeasures for local scour around offshore wind turbine monopile foundations: A review’, Applied Ocean Research. Volume 141.

What is solar energy?

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There are many ways that energy is created across the world, and these are grouped into renewable and non-renewable energy sources. Non-renewable energy refers to natural sources that take thousands of years to form and produce harmful greenhouse gases when they are burned for energy. The most used non-renewable energy sources are coal, oil, and gas, also known as fossil fuels.

When fossil fuels are burned, they produce greenhouse gas emissions which trap in the world’s heat and raise the global temperature. The world is currently experiencing a climate crisis due to increased global temperature. There are numerous negative impacts that are being felt internationally due to the climate crisis, such as increased natural disasters and accelerated loss of species.

Renewable energy refers to various natural sources that replenish themselves rapidly, unlike non-renewable energy sources. Sources of renewable energy include solar, wind, wave, geothermal, tidal, and hydro-electric.

Within this post we will be outlining what solar energy is, how solar energy works, and we will explore solar energy’s presence on Newcastle University’s estate.

What is solar energy?

Solar energy is initially generated by the sun in a constant and renewable process of nuclear fusion. This energy is what lights and warms our planet during the day.

How is solar energy turned into usable power?

Solar energy can be harnessed using multiple methods, the most common method uses photovoltaic systems. Photovoltaics are used in solar cells and panels which form what is known as arrays when they are placed together in groups. Photovoltaics use semiconductors such as silicone to absorb sunlight and generate electricity in the form of a direct current. When the energy has been generated, it is then converted into an alternating current so that it can power objects within a building, which is completed by an inverter.

Why is Newcastle University investing in solar energy?

Newcastle University has invested in solar energy for a plethora of reasons. The installation of solar panels on our current infrastructure such as roof tops is relatively simple, whereas the installation of small-scale wind energy infrastructure is difficult on our campus due to the vast amount of space required. Solar energy is also scalable, the number of panels required depends on the amount of energy required by the University, as this ensures that we can generate this energy on campus instead of buying it. Solar energy is also incredibly efficient and has a medium cost level to high efficiency and production ratio, meaning it is a desirable form of energy to produce for Newcastle University’s needs.

Current use of solar energy on Newcastle University’s estate

Newcastle University currently has 13 solar arrays in a variety of sizes. The energy created by these solar arrays contributes towards the energy usage of the University. Some of the arrays on campus are made up of a few panels on smaller buildings, but we also have a number of larger arrays on buildings like King’s Gate, Henry Daysh, and the Frederick Douglass Centre.

We use a software called Solar Edge to monitor the amount of electricity being created across the arrays. The system also recognises if one of the panels becomes damaged and informs us.

Thank you for reading this post, if you have any questions please email us at sustainable-campus@newcastle.ac.uk