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Press Release 29 March 2022

Energy Saving Trust outlines steps to save hundreds on home energy bills as costs set to increase by 50%

Money saving steps include immediate everyday actions through to longer term investment in home energy improvements to protect against future price hikes.

Ahead of the 1 April energy price cap rise, Energy Saving Trust is providing a series of ways that people can knock hundreds of pounds off their energy bills without compromising their health, wellbeing or lifestyle. Dedicated to promoting energy efficiency, the Trust is also outlining longer term investments that householders can make now to increase energy efficiency, reduce reliance on fossil fuels and protect their homes against future price rises.

Energy bills for around 22 million customers are set to rise to unprecedented levels because of the price cap hike, with Energy Saving Trust calculations showing that homeowners could see their bills increase by approximately 50%. A family living in a three-bed semi-detached house could see their energy costs rise by an average of £740 a year, while two people in a two-bed flat can expect a rise of £470. Households on prepayment meters will see an average increase of £708.[1]

Energy Saving Trust suggests that making several small and swift changes, such as turning devices off standby and reducing daily water usage, could enable many people to offset the increase in costs by around a third.[2]

For those wishing to future-proof their homes, investing in professional draught-proofing and insulation in preparation for the winter months could lead to a reduction in bills by £405 for a semi-detached home. Installing solar panels for a similar property could lead to additional annual savings of around £450.

Simple energy saving hacks for every household

Estimated costAnnual bill saving Annual carbon dioxide saving
Switch off: Turn devices around the home off standby mode.Free£5545kg CO2
Save water in the bathroom: Keep your shower time to four minutes. Additionally, swap one bath a week with a four-minute shower. Free£35 each person99kg CO2
Using appliances: Use your washing machine on a 30-degree cycle and reduce use by one run a week. Only run your dishwasher when it is full.Free£2823kg CO2

Energy efficiency home improvements to prepare for winter

Estimated costAnnual bill saving Annual carbon dioxide saving
Draught-proofing: Professional draught-proofing of windows, doors, floors and skirting boards.£240£95220kg CO2
Cavity wall insulation: Around a third of heat in an uninsulated home is lost through the walls. Most homes in the UK have a cavity wall, the gap can be filled with insulation. £1,200£285670kg CO2
Loft insulation: A quarter of heat in an uninsulated home is lost through the roof. Most homes have at least some loft insulation but often not enough. Topping up from 120mm to at least 270mm of insulation will help. £465£2555kg CO2
Based on three-bed semi-detached house with four occupants. If all these home energy improvements were carried out, they could pay for themselves in less than six years.

Investment for the long term to futureproof your home

Estimated costAnnual bill savingAnnual carbon dioxide saving
Consider installing solar panels: These are the most common domestic renewable energy source in the UK. Once you’ve paid for installation, your electricity costs will be reduced.£6.500London - £505; Manchester - £475; Stirling - £450 Around 750kg CO2
Based on a typical installation in a house that is occupied all day.

Switching to low carbon heating systems such as heat pumps is an essential part of the transition to address the climate emergency and to reduce reliance on fossil fuels. The impact on energy bills if you are installing a heat pump will depend on several factors: including what fuel you are replacing and how much it costs, which type of heat pump you install and its efficiency, and the design of your central heating system.

Switching to renewable energy is a long-term commitment and although there will not be dramatic cost savings straight away, consumers can expect to see year-on-year savings as low carbon technology becomes more established.

Brian Horne, senior insight and analytics consultant at Energy Saving Trust, said:

“Higher energy bills alongside the increasing cost of living is a concern for many. Energy Saving Trust is working to support people across the UK with impartial advice on energy saving actions and home energy efficiency improvements, to help people lower their bills and also reduce their carbon footprint.

“As well as small everyday actions, many people may be able to get a head-start now on installing draught-proofing and insulation to help prepare for winter.

“For those households able to look at reducing costs in the long term, there is potential to invest in solar energy, making their homes more self-sufficient and less vulnerable to future price rises.”

Sarah (42), an insurance professional from Kent, fitted solar panels on her four-person occupancy terrace house four years ago. She said: 

“We had solar panels fitted four years ago as we wanted to reduce our carbon footprint. We’ve really seen a difference to the amount of energy we use from the national grid, resulting in a huge reduction to our energy costs too. In fact, we’ve seen an annual reduction of about £1,000 (23%) in our bill for gas and electric.

“As national energy prices continue to fluctuate, having the solar panels gives us peace of mind that we have some protection from rising costs for the years ahead, while doing our bit for the planet.”

Energy Saving Trust’s website includes information on financial support for home energy efficiency and renewable technologies:

Customers who are concerned about paying their energy bill are encouraged to contact their supplier to access any available support – and to check their eligibility for the Warm Home Discount Scheme, which offers a one-off payment to help meet heating costs. Additional help, including energy saving advice and potential sources of financial assistance, is available from the following places:

For more detailed energy advice, visit:


For more information or interviews, contact / 07801 849 967

Notes to editors

Additional figures available
Savings figures for a two-bedroom flat with two occupants and for a detached house with five occupants are available on request.

Energy use of by house type
Energy Saving Trust’s figures for energy costs by house type are based on median energy consumption for gas and electricity from BEIS for England and Wales in 2019 – using a gas price of 7.37p/kWh and electricity price of 28.34p/kWh, including standing charges.  

Saving figures
Saving figures are based on April 2022 price cap in Great Britain, using a gas price of 7.37p/kWh and electricity price of 28.34p/kWh. Water savings are based on estimated individual use. Solar savings assume an installed capacity of 4.2 kWp and no battery.

Energy Saving Trust will be updating all savings figures across its website to reflect April’s price cap from 1 April 2022.

[1] Based on the median energy consumption for gas and electricity from BEIS for England and Wales in 2019, using April 2022 gas price of 7.37p/kWh and electricity price of 28.34p/kWh including standing charges. Figures updated March 2022. Prepayment figure – Ofgem 3 February 2022

[2] Total rounded figures for each house type carrying out simple energy saving hacks for every household, including turning devices off standby mode, saving water in the bathroom and using washing machine and dishwasher. Savings figures for a two-bed flat are £150 – and £220 for a family living in a three-bed semi-detached house.

Energy Saving Trust

Energy Saving Trust is an independent organisation dedicated to promoting energy efficiency, low carbon transport and sustainable energy use. We aim to address the climate emergency and deliver the wider benefits of clean energy as the UK transitions to net zero.

We empower householders to make better choices, deliver transformative programmes for governments and support businesses with strategy, research and assurance – enabling everyone to play their part in building a sustainable future.

Last updated: 31 March 2022