In 2017/18, we generated 245 GWh of our own electricity needs by using biogas as a fuel recovered from sewage sludge treatment to feed generators to produce renewable electricity from combined heat and power (CHP) engines. We produced a further 41 GWh by burning sludge as a fuel, so in total we generated 286 GWh of our own electricity needs from sludge.
As well as reducing our greenhouse gas emissions and our reliance on buying non-renewable energy from the grid, generating our own electricity helps us improve the quality of the sludge we recycle to agricultural land. This saves money and provides a more sustainable solution for our customers.
We’re continuing to look for ways to increase our renewable energy generation from sludge. Click on the case study below to find our more: