Bulb Energy is a renewable energy company - they are cheaper than the big six and the cheapest renewable energy company in the UK. They actually dropped their prices twice this year!
My bills have worked out a lot cheaper since I switched a few months ago & you get £50 credit towards your bills for each person you sign up! they are ranked #1 energy provider on Trustpilot too.
Here's my referral code for £50 when you switch (you then get your own code to share around).
bulb.co.uk/refer/joannaayre