Summary
- egg Power has signed a 90MW onshore wind PPA with Amazon for Chirmorie Wind Farm in South Ayrshire.
- The project will comprise 20 turbines and is expected to generate around 275GWh a year.
- The agreement links digital infrastructure growth to long-term renewable procurement and grid-connected generation.
egg Power, Liberty Global’s clean energy infrastructure business, has signed a 90MW power purchase agreement with Amazon for output from Chirmorie Wind Farm in South Ayrshire.
The agreement will see Amazon buy power from the 20-turbine onshore wind project, which sits around 5km to 6km south-west of Barrhill on the border of South Ayrshire and Dumfries and Galloway. egg Power acquired the project rights earlier this year and is preparing to move the scheme towards construction.
Liberty Global describes the deal as the UK’s largest onshore wind power purchase agreement. Chirmorie is expected to generate around 275GWh of renewable electricity annually once operational, with an installed capacity of 90MW.
The Chirmorie project page says the wind farm has planning permission, first granted by the Scottish Government in March 2018 and subsequently updated. The scheme includes turbines, access tracks, a substation and control building, and associated civil and electrical infrastructure.
Cloud load reaches the wind farm
The agreement is not attached to a named UK data centre, but Amazon’s cloud and digital infrastructure demand sits behind the procurement logic. Large technology companies require electricity at a scale and duration that now affects renewable development, financing, and grid planning beyond the data centre boundary.
Long-term PPAs help buyers secure renewable supply, support new generation, and manage exposure to volatile power prices. For generators, a creditworthy buyer can provide the revenue certainty needed to finance construction. For the data centre sector, these contracts have become part of the physical growth model, alongside grid connections, substations, backup power, and site acquisition.
egg Power has positioned itself around the intersection of clean energy, AI, telecoms, and digital infrastructure. In January, the company secured a £400m non-recourse debt financing facility with NatWest to support 250MW of solar and wind farms under construction or development. It has also set an ambition to deliver more than 1.5GW of clean energy capacity by 2028 under long-term PPAs.
Chirmorie’s local infrastructure will still have to be delivered. Wind farms require civil works, turbine logistics, access roads, grid connection, substation work, and construction management. The fact that a major digital infrastructure buyer has signed for output does not reduce those physical requirements; it helps underwrite them.
Contracts do not erase grid pressure
A PPA does not mean a data centre is physically powered by a dedicated wind farm in every operating hour. The project will generate into the electricity system, while Amazon’s demand will be served through the grid at the locations where its facilities operate. The carbon and commercial value of the agreement depends on contract structure, additionality, accounting, and the match between generation and consumption.
That distinction is becoming harder to avoid as European regulators and customers scrutinise renewable energy claims. A data centre can sign a substantial renewable PPA while still increasing peak local demand, requiring grid reinforcement, or relying on backup generation for resilience. Renewable procurement and local grid impact have to be understood together.
The Scottish project also shows how digital infrastructure demand can support generation in parts of the country that are far from the main data centre clusters. Renewable power may be generated in South Ayrshire while digital demand concentrates around London, Dublin, Frankfurt, Slough, or other hubs. Transmission and market design then become part of the data centre story.
Amazon has signed several large energy contracts across Europe in recent years, reflecting the scale of its infrastructure footprint. The Chirmorie deal adds a UK onshore wind component to that wider procurement base at a time when AI workloads are increasing attention on both electricity use and claims of renewable matching.
The next measure will be delivery. If Chirmorie reaches construction and operation on schedule, the agreement adds real renewable generation to the UK system. If grid connection, supply chain, planning conditions, or construction slow the project, it will underline the gap between signing power contracts and turning them into electrons.
