The sector generated 49.7% of electricity in 2014, the latest year for which figures are available.
The stats have been hailed as “a clear sign of how important renewables have become to our energy sector” by industry body Scottish Renewables.
Senior Policy Manager Joss Blamire said: “These new figures confirm that in 2014 Scotland produced the equivalent of 49.7% of its electricity from renewable energy – the highest proportion ever, and up almost 12% on 2013.
“These latest UK Government figures are a clear sign of how important renewables have become to our energy sector.”
Scotland has a 2015 target of generating the equivalent of 50% of its energy from green sources, which acts as a marker for an overall 2020 target.
Mr Blamire warned: “While we are now almost half way to our 2020 goal of producing the equivalent of 100% of our electricity from renewables, the second half of the target is going to be much harder to achieve than the first.
“To see further progress, both the UK and Scottish Governments must now put renewables at the heart of their energy policy in terms of cutting carbon emissions, reducing bills for consumers and increasing our energy security.”
The new stats come in the quarterly Energy Trends report, released today by the UK Government’s Department of Energy and Climate Change.