Soay Solar Farm construction begins as Statkraft plants first panels in East Yorkshire

Statkraft has broken ground on Soay Solar Farm construction, installing the first panels at its 49.9MW project east of Thornton in East Yorkshire, the company’s first UK solar scheme to reach the build phase.

Once operational in 2027, the site is expected to generate enough renewable electricity to power the equivalent of 21,700 homes. That is a credible output for a sub-50MW project, and the headline number stands up to basic scrutiny: 49.9MW at a reasonable capacity factor for a UK ground-mount produces in the right ballpark.

Biodiversity claims: the numbers behind the green framing

Around a third of the site will be dedicated to habitat enhancement and new planting, with Statkraft claiming a biodiversity improvement of over 130% compared with the previous land use. The company has been working with the Bumblebee Conservation Trust, which provides specialist advice on habitat design, suitable plant species and long-term management practices.

A 130%-plus uplift is a bold figure. It is worth noting that biodiversity net gain calculations are sensitive to baseline methodology: arable land scores low, which makes percentage improvements look large. That does not make the commitment meaningless, pollinator-friendly ground cover beneath solar arrays has genuine ecological value, but the number alone should not be treated as a universal benchmark. The involvement of the Bumblebee Conservation Trust on habitat design and long-term management is at least a concrete accountability mechanism rather than a self-assessed figure left to gather dust.

Soay Solar Farm construction sits next to a major storage project

The solar farm is located adjacent to Thornton Greener Grid Park, where the first phase is a 200MW two-hour battery energy storage system (BESS) currently in the final stages of commissioning. According to Solar Power Portal, 620 battery units have now arrived on site, and the Thornton Greener Grid Park is expected to be operational in Autumn 2025.

The co-location of generation and storage on a shared grid connection is increasingly the model for new-build renewables. It reduces curtailment risk and improves the economics of both assets, though the two-hour discharge duration will limit the BESS’s role in longer duration flexibility markets. Whether Statkraft plans to extend that duration over time is not stated.

The Thornton Greener Grid Park represents an investment of £150 million, according to Powerline Energy Storage. That figure underlines the capital intensity of grid-scale storage, and it sits within a broader UK investment pipeline that Statkraft puts at exceeding £3 billion, covering around 20 projects with planning consent across a range of technologies.

What Statkraft’s pipeline commitment actually means

A pipeline figure north of £3 billion sounds substantial, and Statkraft is a credible developer with real projects in the ground. However, a pipeline with planning consent is not the same as committed capital. Consent lapses, grid connections are delayed, and finance conditions change. The Soay milestone matters precisely because it is one of the few points in the development cycle where shovels are genuinely in the ground.

Charlotte Healey, Statkraft’s head of solar, framed the milestone plainly: ‘It’s very exciting to see Soay Solar Farm beginning to take shape, with the first panels now in place, and work about to conclude on the final structural site works. Solar is one of the key renewable technologies we need to deliver stable bills and greater energy security, in an environmentally-friendly way, and Soay is one step closer to playing its part in transforming the way we generate electricity in Great Britain.’

The 2027 operational date gives a clear near-term test. With the adjacent BESS targeting commissioning in Autumn 2025, Statkraft’s Thornton cluster will be worth watching as a case study in whether co-located storage and solar can deliver the grid flexibility that policy is increasingly demanding from the private sector.