A third of the UK’s electricity came from renewables in 2018 as overall power generation fell to its lowest level for 25 years.

Wind accounted for 17% of the total power generated last year, while solar contributed 4% and burning plant material or biomass for electricity produced 11%, analysis by climate and energy website Carbon Brief found.

Quick wins – that add up to £342 savings

Switching off appliances, rather than leaving them on standby, could reduce bills by around £30 a year.

Using a bowl to do the washing up – and not leaving the hot tap running – could save £25 a year, while only filling the kettle as much as you need could save £6 a year.

A water efficient shower head could save a four-person home as much as £70 a year on gas for water heating. Spending a minute less in the shower every day could save £7 a year per person.

Professional draught-proofing can save around £20 a year, while a chimney draught excluder could save around £15.

Turning off lights when not in use can save around £15 a year, while LED lighting can save around £35.

Radiator foil – which can be specialist brand or simply kitchen foil – placed behind the radiators on external walls helps too. Costing a few pounds, it reflects heat back into your home rather than outside and saves about £10 a year.

And you can get even more value out of your existing radiator by adding a fan over the top – so hot air goes into the room rather than into the wall – it could save you £31 a year.

If you’ve got single-glazed windows, you can also save money with cling film. Specialist can be used to create the same effect as secondary glazing on windows as well as preventing draughts and keeping warm air in. It could save you as much as £100 .

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