A THOUSAND solar panels have been hooked up at a water treatment works serving Edinburgh and parts of West Lothian.

The green energy generators now provide a quarter of the energy needed at the Marchbank Water Treatment Works near Balerno, which serves 68,000 properties.

The development is one of a number of projects completed by Scottish Water Horizons, a subsidiary of the public utility, which supports the development of a sustainable technology in Scotland.

Chris Toop, General Manager for Scottish Water’s energy programme, said: “Electricity, as any consumer will know, can be expensive and that’s why Scottish Water has been working to reduce the amount of energy that we need to purchase.

“Installing solar panels is therefore fantastic news for our customers. It’s one of the ways in which we can help to keep our customer charges lower than the UK average, while aspiring to deliver ever better service.

“The solar panels at Marchbank Water Treatment Works make this vital facility serving Edinburgh and West Lothian increasingly self efficient."

Donald MacBrayne, Commercial Manager of Scottish Water Horizons, added: “This project is all part of our wider efforts to maximise the value of Scotland’s water resources and assets.

“Through use of technologies such as solar panels and hydro turbines in pipes, several of our treatment works can now generate all, and in some cases more, of the energy they need to operate.”

In the past two years, Scottish Water has doubled the amount of renewable energy which can be generated at treatment works and in water mains to over 50GWh.

There are now 27 hydro turbines which harness the natural flow of water through their pipes to produce electricity, as well as several wind and photovoltaic schemes.

Energy is also extracted from sewage sludge, while more than 4,000 smart meters have been installed to measure consumption and target opportunities to use less energy.