The Gammaton site is Sonnedix’s first large-scale solar project in the UK and was one of five of the company’s projects awarded a Contract for Difference (CfD) agreement in the government’s AR5 and AR6 allocation rounds.
April 29, 2026
Independent Power Producer IPP) Sonnedix has begun operations at a 40MW solar PV project on Devon. 
The Gammaton site is Sonnedix’s first large-scale solar project in the UK and was one of five of the company’s projects awarded a Contract for Difference (CfD) agreement in the government’s AR5 and AR6 allocation rounds. 
Sonnedix said the project is “strategically located” near the Alverdiscott power station, which provides access to existing grid infrastructure and the “potential for future co-location opportunities”. Gammaton has been designed to allow for sheep and cattle grazing “around and through” the solar array, Sonnedix said, and is expected to generate 42GWh of renewable power annually. 
Axel Thiemann, CEO of Sonnedix, said the start of operations at Gammaton was “an important milestone in the development of our UK portfolio.” 
The site marks the first in a series of expansions for Sonnedix in the UK; the company said it plans to bring 300MW of large-scale solar projects online in the UK in the first half of 2026, including its largest project, the 120MW Cowley solar complex in County Durham. 
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Globally, Sonnedix has a portfolio capacity of around 12GW, with 4GW in operation, 1GW under construction and around 6GW in its project pipeline. 
The UK’s CfD allocation rounds (AR) have attracted large amounts of solar development. AR6 in particular, where Sonnedix won capacity, market a “clear comeback” for renewables CfDs, according to industry experts, as the government received record levels of capacity bids. 60% of the solar capacity built in the UK since 2023 has received a CfD, according to Solar Media analyst, Josh Cornes. 
The most recent round, AR7, saw a record number of developers awarded capacity and slightly decreased average project size. 
Will Norman
Senior Reporter, Informa
Will is a senior reporter who primarily covers the policy and geopolitics behind the energy transition, with a particular focus on manufacturing. 
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