Compare gas and electricity deals for London homes

How energy prices work in London

Gas and electricity bills are made of two parts: a unit rate for each kWh you use and a daily standing charge you pay whatever you use. Both vary by region, so London homes pay the London region's rates rather than a national average.

If you are on a standard variable tariff, Ofgem's price cap sets the most your supplier can charge per unit and per day. It changes every three months, so your bill can rise or fall even if you never switch.

How to compare gas and electricity deals

• Unit rate — the price per kWh. Lower matters most if your home uses a lot of energy.
• Standing charge — the daily charge. Lower matters more for small flats and low users.
• Fixed or variable — a fixed tariff locks the rates for a set period; a variable one moves with the price cap.
• Exit fees — some fixed deals charge to leave early. Check the amount before you sign.
• Payment method — Direct Debit is usually cheaper than paying on receipt of a bill.

Use your annual kWh from a recent bill. Our fixed vs variable calculator compares a fixed deal with the price cap for your own usage.

Flats, renters and prepayment meters

Many London homes are flats, and some have electric heating only with no gas supply. If so, compare electricity tariffs alone and look closely at the unit rate, as heating is your biggest cost. Homes with Economy 7 or similar meters should compare time-of-use tariffs.

Renters who pay the bills can usually choose their own supplier. If you have a prepayment meter, ask your supplier whether you can move to a credit meter or a smart meter, which can open up more tariffs.

Help with energy bills in London

If you are struggling to pay, contact your supplier first — it must work with you on an affordable payment plan. You may also qualify for the Warm Home Discount or your supplier's hardship fund. Our winter energy saving guide lists practical ways to use less.