The previous record of 82% was set April 2013 and reached again in November last year.
The data was collected between 28th March – 6th April 2018 using face-to-face in-home interviews with a representative sample of 2,102 households.
The survey also revealed:
Levels of concern in relation to the UK’s future energy security have increased since last year. 72% of respondents said the UK is becoming too dependent on energy from other
countries, compared to 66% last year.
When asked if the UK is investing fast enough in alternative sources of energy, 71% answered yes compared with 66% last year.
Respondents who were concerned about the UK becoming too dependent on energy from other countries were asked to identify specific sources of energy that concerned them.
Compared with the results at this time last year concern over oil has decreased from 38% to 34%, whilst concern over gas has increased from 47% to 57%.
A smaller proportion mentioned concern over electricity (25%), whilst just over a quarter (27%) had no specific energy source in mind.
RenewableUK’ Executive Director Emma Pinchbeck said: ‘Today’s survey shows record levels of public support for onshore wind, offshore wind, wave and tidal energy. People are happy to have big projects in their own areas – and they strongly feel Government should be building more cheap, reliable, renewable energy here in the UK.
‘It’s great that our industry is winning the global race for clean energy, and to see that the British public is cheering them on.’