Solar power installations could be allocated at about 10 per cent of Thames Water Utilities’ 3,500 operational sites.
The utility currently buys power from solar plants installed at 41 sites. They hope to add 2.9 MW more by March.
Kemble Water Holdings’ Thames Water unit generates 14 per cent of its electricity from renewable energy sources and are aiming to increase that to 20 per cent by 2015.
Thames Water agreed to the UK’s first solar PPA last year, a 25-year contract valued at 7 million pounds with developer Ennoviga Solar for 3.7 MW at three sites.
The utility is also building two wind turbines and has a framework agreement with four solar developers comprising Ennoviga, British Gas, Promo and Infinity.