Renewables

They use the energy stored in ambient air for your heating and hot water and are up to 3 times more efficient than traditional systems. 

Heat pumps are technically suitable for many households, but you will need some outdoor space, and space inside for a hot water tank. 

Solar electricity panels, also known as photovoltaics (PV), capture the sun’s energy and convert it into electricity that you can use in your home. You'll need a more or less south-facing, unshaded roof or garden area. You'll then need to think about your current electricity demand and what size of system you might need.

Solar water heating systems, or solar thermal systems, use energy from the sun to warm water for storage in a hot water cylinder or thermal store. Because the amount of available solar energy varies throughout the year, a solar water heating system won’t provide 100% of the hot water required throughout the year. A conventional boiler or immersion heater is normally used to make up the difference.

Domestic-scale wind power is likely only suitable for rural and exposed homes in the UK

The main requirement for a biomass heating system is lots of space. Space for the boiler itself, but also enough room for storing the wood pellets, too.

Heat pumps are technically suitable for many households, but you will need some outdoor space, and space inside for a hot water tank. Ground source heat pumps will need extensive land, to bury the ground loop in a trench or borehole.