Shine On – Centrica Opens Its First UK Solar Farm
The title of this post is the same as that of this press release from Centrica.
These are the bullet points.
- 18MW Codford Solar Farm in Wiltshire is Centrica’s first major solar asset
- Part of plans to build a material portfolio of low carbon assets
- Vodafone supports development with long term Power Purchase Agreement for 50% of the output over 10 years
- Additional renewable power supports the UK government’s ‘green grid’ ambitions
I have some thoughts.
Centrica’s First Major Solar Asset
These two paragraphs from the press release outline the project and indicate where it fits in Centrica’s overall philosophy.
Construction began at the site in Wiltshire in April 2022, after the consent was acquired by Centrica Business Solutions in 2021. Made up of 33,000 panels, the project has a total capacity of 18MW and should produce 19GWh of green electricity every year, enough to power some 4,850 homes.
The deal not only brings additional renewable power provision to the UK grid but supports the UK government’s ambition to focus on home-grown renewable energy to boost long-term energy independence and security.
My only reservation is at 18 MW it isn’t that large and the sun doesn’t always shine in the UK.
Centrica’s Portfolio Of Low Carbon Assets
This paragraph from the press release talks about the portfolio.
In late 2021, Centrica announced ambitions to deliver 900MW of low carbon assets by 2026. The company is currently building battery storage projects at former gas peaking plants at Brigg, Lincolnshire, Knapton, North Yorkshire, and Ostend in Belgium, and has developed a multi GW pipeline of projects.
Note that former gas power plants, usually have a very handy connection to the electricity grid.
900 MW would also rate at around the output of two typical gas-fired power stations.
Vodafone’s Power Purchase Agreement
Big companies like Vodafone seem to be increasingly signing Power Purchase Agreements for their renewable electricity. These must give advantages all round.
- The developer can take the purchaser’s deal to a bank and use it to raise capital for the project.
- The purchaser, in this case Vodafone can say that they use at least some zero-carbon electricity, which must help marketing.
- The bank knows that so long as the sun shines, there will be money flowing to the developer.
- The developer doesn’t have to deal with thousands of customers.
These three paragraphs from the press release outline Vodafone’s deal.
Vodafone will purchase half of the electricity output from the solar farm, helping to support its development and bringing additional renewable power provision to the UK Grid. Combined with agreements already in place, around 47% of the company’s annual energy requirement will come from UK-based renewable power sources by 2025.
The long-term Power Purchase Agreement (PPA) will see approximately 9GWh of green electricity dedicated to Vodafone UK. The remainder will be sold into the national grid through Centrica’s Energy Marketing & Trading business.
The deal is the third PPA signed by Vodafone and Centrica Energy Marketing & Trading over the last year. In May 2022, Vodafone and Centrica announced a long-term PPA with MYTILINEOS S.A for the output from three solar farms in the UK. And, in February 2023, Vodafone committed to take a significant proportion of the output from a further five solar farms in one of the largest corporate solar PPAs to date.
It looks like, when Vodafone’s other solar farms are connected, they will be able to advertise as a zero-carbon company running on renewable electricity.
That sort of green advertising hasn’t hurt Lumo’s trains between London and Edinburgh.
Connecting Codford Solar Farm To The National Grid
This Google Map shows the location of the Codford Solar Farm.
Note.
- The solar panels marked with the red arrow.
- Codford Biogas in the South-West corner of the map.
- The site is surrounded with the fields of a large arable farm, that grows wheat, barley and oilseed rape.
- The site is also shielded by trees.
This second Google Map shows Codford Biogas.
According to their web site, Codford Biogas accept the widest range of food waste in southern England.
The home page describes waste collection, secure disposal and carbon reduction.
Their method of disposal uses anaerobic digestion, which is a complex biological process involving the breakdown of organic matter in the absence of air in large, sealed and insulated vessels with controlled heating and mixing.
The Wikipedia entry for anaerobic digestion describes the process in detail.
On their web site, there is a page, which is entitled What Is AD?, which has an interactive graphic describing the process at Codford.
Main products from the site include.
- 3.6 MW of electricity, which can be fed to the grid.
- Fertiliser, which can be spread directly on the surrounding arable land.
- Waste heat, which will be developed for businesses that need it.
Obviously, the electricity export will need a grid connection, which I suspect will also be used by the new solar farm.
Conclusion
It looks like Centrica have piggy-backed their solar farm on to an existing grid connection.
But it does look like connecting your solar farm to the grid through a power station that can operate continuously, helps to give a more continuous output.
I think we’ll see more of this!
Centrica Announces Hydrogen Ready Combined Heat And Power Partnership With 2G
The title if this post is the same as that of this press release from centrica.
This is the sub-heading.
Centrica Business Solutions is partnering with 2G Energy AG to provide customers with 100% hydrogen ready Combined and Heat Power (CHP) systems.
This paragraph outlines the project.
The move is in response to the growing need for integrated hydrogen solutions which are a key tool in the decarbonisation of decentralised energy. As the hydrogen network develops, the highly efficient units can continue to run on traditional fuel sources, helping future proof investments by ensuring an extended life for the assets.
It does appear that the 2G units can run on biogas or natural gas and switch to hydrogen, when it is available.
2G Energy have a web site, with lots of case studies.
Hydrogen Gas From Biogas
The title of this post, is the same as that of this article on Finance News Network.
This is the introductory paragraph.
Managing Director and CEO Geoff Ward talks about the Hazer process for low emissions hydrogen gas and high purity graphite production from biogas, CAPEX approval to proceed with the company’s commercial demonstration plant and offtake discussions.
The process doesn’t create any CO2, as it extracts the carbon as a crystalline graphite. So are there two worthwhile products from the biogas?
According to this page on Graphene Info, the graphite can be made to create graphene.
The Anonymous Widower 