Longfield Solar Farm is backed by EDF Renewables.

EDF Renewables has more than 25 years’ worth of experience in delivering renewable energy projects in more than 20 countries around the world. In the UK, it provides much needed new affordable low carbon energy through 36 wind farms and one of the UK’s largest battery storage units (together totalling almost 1GW). It has a portfolio of rooftop solar and grid scale solar energy generation in development.

You can find out more here: https://www.edf-re.uk/