The project has seen 792 ground-mounted PV panels installed at the site and is expected to generate 0.3GWh of green energy per year – the same amount needed to boil around 1.3 million kettles.

The renewable energy generated by the solar panels will meet 12% of the site’s power usage and save 63 tonnes of carbon annually.

The project has been led by Scottish Water Horizons, the public utility’s commercial subsidiary, and delivered by renewable energy specialist Absolute Solar and Wind.

Scottish Water Horizons project manager Keliann Arthur said: “We are delighted to have completed this solar scheme at our waste water treatment works in Bathgate, adding to Scottish Water’s fast-growing portfolio of renewable projects across the country.

“We remain focused on achieving our ambitious net zero emissions target by 2040 and are continuing to ramp up our response to the climate crisis by increasing the pace and scale at which we are delivering green energy projects.”

Scottish Water operations team leader Neal Legowski added: “The treatment works in Bathgate operates around the clock, treating the waste water from thousands of homes in the area. It is a large user of electricity so it is great that some of our power usage is now being met by green energy from this scheme – cutting our carbon emissions and helping us on our net zero journey.”