The Anonymous Widower

New Octopus Energy Makes First Investment To Develop UK’s Largest Battery

The title of this post, is the same as that of this article on Renewable Energy Magazine.

This is the first paragraph.

Octopus Energy Group has launched its new renewables fund Octopus Energy Development Partnership (OEDP) which has just made its debut investment in renewables developer Exagen to build new green energy and rapidly grow the UK’s energy storage capacity.

These three paragraphs outline the deal with Exagen.

This latest multi-million pound deal sees OEDP take a 24 percent stake in Exagen, which is working on large-scale solar and battery facilities, partnering with farmers, landowners and local communities to build projects that help bring energy security.

This deal includes the option to purchase one of the UK’s largest batteries at 500 MW/1 GWh located in the Midlands, England, scheduled to be operational by 2027. This standalone battery would be the UK’s largest, and with the capacity to export the equivalent electricity usage of 235,000 homes in a single day. Batteries provide grid-balancing services by storing cheap green energy when it is abundant, and releasing it when it is needed.

As part of the agreement, OEDP has also acquired three solar farms with batteries on-site in the Midlands and North East of England, which Exagen is currently developing. The solar farms have a combined capacity of approximately 400 MW. Exagen already has 2 GW of solar and battery storage projects in their pipeline, which Octopus will be able to invest in once they’re ready to build.

I am intrigued about the 500 MW/1 GWh battery!

Will it be lithium-ion?

The largest lithium-ion battery in the world is currently the 400 MW/1.6 GWh battery at Moss Landing Power Plant in California, which offers more storage capacity, but less output than Exagen’s proposed battery.

Exagen’s battery needs to be operational by 2027, which means that there is almost five years for an alternative technology to be thoroughly tested.

Highview Power say this about their proposed CRYOBattery in Yorkshire, on their web site.

Highview Power’s second commercial renewable energy power station in the UK is a 200MW/2.5GWh facility in Yorkshire. This is the first of 18 sites for UK wide deployment strategically located to benefit from the existing transmission infrastructure.

A battery similar to Highview’s proposed battery in Yorkshire, would surely be big enough.

Exagen’s battery could be one of the eighteen mentioned on Highview Power’s web site.

As Highview are currently building their first commercial system at Carrington in Manchester and hope to commission it this year, there should be enough time to debug the design.

But there are other companies, who may have the capability to build a large enough battery in the timescale.

On the other hand, lithium-ion would be the conservative choice.

August 25, 2022 - Posted by | Energy, Energy Storage | , , , , ,

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