The UK’s largest operating solar farm will provide power for Anglian Water under a new power purchase agreement (PPA).
The so-called ‘sleeved PPA’ for the 75MW Llanwern Solar Farm was announced by NextEnergy Capital. The a 20-year inflation-linked contracted revenue agreement, which covers 90% of the solar farm’s output, was signed by NextPower UK ESG.

The Llanwern site is in Newport, Wales. The sleeved PPA is a four-way physical contract that involves NPUK ESG selling power to Anglian Water Services with the involvement of both EDF in the UK, and SSE. The agreement works through EDF taking the power generated by Llanwern, which is then balanced, firmed, and converted, changing the intermittent generation into baseload blocks of power which is then sleeved to AWS via their energy supplier, SSE. The company said the “innovative structure allows the renewable generated solar profile to then reliably match the energy profile that is required by AWS”.
NPUK ESG is a private UK solar fund that acquires utility-scale solar and battery assets at the ready-to-build stage.
David Riley, Head of Carbon Neutrality at Anglian Water, said: “This leading and innovative structure has enabled renewable energy to be consumed with a direct line of sight to the physical solar asset, made possible with the dedication and shared expertise from teams within NEC, EDF, SSE and Anglian Water.”