Renewable energy reliability improves amid growing push for energy independence

The government's Warm Homes Plan aims to make homes warmer, cheaper to run and lower-carbon, while also tackling fuel poverty and cutting energy bills.

Quite apart from the climate implications, countries and individuals are seeking ways to become less dependent on imported oil and gas.

There are encouraging signs that some of the challenges of the transition to renewables are being overcome, even on windless winter nights.

Once installed, renewable energy is cheap, because the cost of fuel – sunlight and wind – is zero.

We need an energy supply that is clean, independent and sustainable. And we are beginning to overcome the problems of renewables.