Santander UK provided £13.6m ($15.1m) of portfolio level debt over a 10-year period for the Sidlesham, Burton and Stanton windfarms.
The deal places all three projects under the ownership of Quercus Renewable Holding 2, a Quercus-owned holding company.
The Sidlesham, Burton and Stanton plants have a combined capacity of 21.3 MW and are located in Chichester, Swindon, and Stratford-upon-Avon respectively. They were all connected in May 2015.
Quercus founder and chief executive Diego Biasi said: “We remain constantly focused on delivering clean energy to the UK customer through our local renewable energy plants. We are very happy to partner with Santander and to have negotiated a vital and mutually beneficial deal to optimize our investors’ returns on these three plants.”