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Which Renewable Energy Option Is Best For My Home?

Renewable energy is on the tips of everyone tongues, from electric cars to greener heating; we’re starting to think about ways we can make changes now and in the future.

Written by
Camilla George
on 08 Jan 2023
and updated on
27 Jun 2023
Categorised in
Sustainability

Renewable energy is on the tips of everyone tongues, from electric cars to greener heating; we’re starting to think about ways we can make changes now and in the future.

With the government target of achieving net-zero carbon emissions by 2050, BoilerJuice wants to help customers reduce their carbon footprint created by their heating and help those interested in knowing more about greener energy.

However, searching for information on green energy can be pretty time-consuming, so we’ve put together a handy table simply to show you the average costs, the options available and the pros and cons for different energy sources.

Air Source Heat Pump

A pump that uses electricity to run. It takes the air from outside and uses it to create heating for your home.

£9,000 - £11,000

✅ Low carbon option

✅ Financial support available

✅ Affordable to run

✅ You could save up to £1,000 a year

✅ Renewable energy source

✅ No fuel deliveries

✅ No digging needed for installation

✅ Easily provides heating and hot water

❌ Low savings if switching from mains gas

❌ Space on a wall or ground is needed for install

❌ Uses more electricity in colder months

Ground Source Heat Pump

A pump that uses the pipes in your garden to extract heat from the ground.

£14,000 - £19,000

✅ Low carbon option

✅ Financial support available

✅ Affordable to run

✅ You could save up to £1,000 a year

✅ Renewable energy source

✅ No fuel deliveries

✅ More energy efficient than air source

✅ Easily provides heating and hot water

❌ Certain pipework only suitable for larger gardens

❌ Specialist equipment may be needed for installation

❌ Land will require digging for install

Solar Water Heating

Uses heat from the sun to provide heating and hot water.

£4,000 - £5,000

✅ Low carbon option

✅ Helps the main energy source to work more efficiently

✅ Affordable to run

✅ Reduces the need to use fossil fuels

✅ Minimal maintenance

✅ Easy to install

✅ Stores heat / hot water as a backup

❌ Must be installed with another renewable energy source

❌ If installed with a solar water system you cannot apple for RHI

 

Biomass

A stove or boiler that burns wood, animal waste or household waste to provide heating.

£11,000 - £17,000

✅ Low carbon option (vs fossil fuels)

✅ Financial support available

✅ Affordable to run

✅ You could save up to £1,200 a year

✅ Renewable energy source

❌ Requires more space due to storing fuel, flue and wood boiler

❌ One of the most expensive systems to install

❌ Stove not available for financial support

Thermal Energy Stores

Vessels that store excess heat created by an energy source.

£Vaired

✅ Low carbon option

✅ Affordable to run

✅ No fuel deliveries

✅ No digging required for install

✅ Stores excess heat for future use

✅ Minimal maintenance

✅ Aids efficiency of renewable energy sources

❌ Not an energy source on it's own. Energy source must be installed.

❌ Financial support unavailable if you use a solar water system

HVO

Renewable liquid fuel source made from waste vegetable oils.

£500 - £1,000

✅ Low carbon option

✅ 100% renewable and biodegradable 

✅ Odourless

✅ Works with existing heating system (after upgrade)

✅ Reduces emissions by up to 90%

❌ Oil boiler requires conversion to accept HVO

❌ Liquid fuel still requires delivery

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Advantages

What's great about air source heat pumps?

  • Classed as renewable energy – Air source heat pumps are a great way to reduce your carbon emissions. As this system does not burn fossil fuels, it’s an efficient way to keep your home warm without emitting large amounts of CO2 into the environment.
  • Reduced heating bills – Heat pumps are cheap to run, they’re three times more efficient than a standard boiler therefore, you can save plenty on your energy bills if switching over from heating oil or electric heating.
  • Financial support is available – The Renewable Heat Incentive is available to any air source heat pump installed by an MSC installer. With this scheme, you’ll get payments for seven years. You can find out more here.
  • Efficient –  Heat pumps are very efficient; in fact, they can be up to 400% efficient, as they only need electricity for the heat pump and compressor, so they generate more energy than they use to run!
  • Provides hot water and heating – Air source heat pumps can extract heat from the air as low as -15 degrees; therefore, they can provide heating and hot water all year round.
  • Long life span – An air source heat pump that has been looked after with regular maintenance can last up to 20 years
Disadvantages

What's not so great about air source heat pumps?

  • Heat Pumps can be noisy – the noise from a heat pump is the equivalent to the volume of light rain.
  • Heat pumps supply less heat than gas or oil boilers  – If you have small radiators, you may struggle to provide the appropriate heat needed to keep the radiators warm. You may need to consider buying larger radiators or invest in underfloor heating.
  • The efficiency of heat pumps can drop in low temperatures – Even though heat pumps are efficient, their efficiency decreases when temperatures are below -0 celsius.
  • Limits on savings – If your home has access to the gas mains, you won’t see a large saving in your energy bills.

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