Despite years of promises and policies to finish the nation's reliance on fossil fuels and rip global warming pollution, Britain’s renewable energy upheaval underwent an unexpected setback this winter when the power supplied from wind, hydro and other "clean" sources cut down.

According to sources, the Government will by tomorrow divulge a main report explaining how it planned to pay for the hundreds of billions of new spending required to gather the UK's targets for renewable energy and cutting climate change emissions by setting up a new Green Investment Bank.

As compared to 2009, the first three months witnessed a 7.5% fall in proportion of electricity supplied from renewable sources such as wind and hydro power.

The dry climate this year, however, was blamed for the drop, which reduced power from water turbines, and low wind speeds, leading to the lowest supreme supply from those two sectors for four winters.

As the Government figures showed that UK had become a net importer of gas for the first time in more than 40 years in January to March, concerns regarding its impact on renewable energy and from competition from cheap gas from overseas was expressed by experts.

"The coalition must keep its promise to be the greenest Government ever by making it easier for renewable energy projects to take off – and creating a well-funded green investment bank focused on making Britain a world leader in a developing a low-carbon economy”, Andy Atkins, Executive Director of one of the country's biggest environmental groups, Friends of the Earth said.