The first photovoltaic solar array to connect directly to the electricity transmission network in the UK has been placed into operation.

The National Grid connected Enso Energy and Cero Generation’s new 50MW Larks Green solar farm to its Iron Acton substation near Bristol following installation of new switchgear at the site and the running of a high-voltage cable between the substation and solar farm.

Until now, all of the UK’s solar farms have connected to the country's distribution networks – the lower voltage regional grids that carry power from the high-voltage transmission network to homes and businesses. Connecting solar power directly to National Grid's transmission network marks a significant step in the renewable energy transition, allowing clean energy to be transported over greater distances and opening a gateway for larger projects to connect to the grid.

The solar plant comprises 152,400 solar modules installed in a 200-acre plot and will generate over 73GWh annually and displace 20,500 tons of CO2 each year compared to traditional energy production.

The solar farm will be co-located with a 49.5MW / 99MWh battery energy storage system. By storing energy during peak power generation and exporting it back onto the grid when demand is high, the BESS will balance the intermittent energy production, maximise the site's efficiency and allow a greater output of clean energy.

The design and layout for the co-located solar farm and storage will also produce a net biodiversity gain. This will be achieved through the provision of a range of resources for local wildlife, including additional woodland planting, that will provide shelter and food for a range of protected species.

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