More than 120,000 solar PV panels will cover 125 acres of disused land in Oxfordshire, generating enough electricity to power around 6,500 homes.
Robinson & Hall’s renewable energy department, based at the firm’s bedford office, had to secure planning permission by the end of June in order that the necessary investor agreements could be secured.
The scheme is expected to be commissioned in spring next year.
AndrewBarr, head of renewable energy at Robinson & Hall, said: "We were thrilled to be involved in this exciting project which is making good use of otherwise derelict land with minimum visual impact on the countryside.
“The solar PV industry has seen a number of changes since the introduction of the Feed-in Tariff in 2010. Falling costs of solar panels means that good returns on investment are still very much achievable, both for small and larger scale projects.”