Britain has climbed 13 places in a global league table comparing the carbon content of country power supplies in 2012 and 2016.
The UK's largest flow battery system has been connected up to the power grid.
Voltage controllers that could save customers millions of pounds in savings are being used by power operator Electricity North West.
Researchers at the University of Huddersfield have developed a new sensor system that can pick up partial discharges on electricity substations.
Moixa, a leading smart home battery company, has received more than £250,000 worth of government funding to expand its GridShare platform.