Make a difference. 100% carbon-neutral gas

Join us on our journey to carbon neutral and support UK green gas and carbon-cutting projects at home and abroad.

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Supporting UK green gas

We’ll match 6% of the gas you use on a Green Future tariff with green gas from generators across the UK. It’s made from renewable sources, such as leftover food and farm waste, and unlike normal gas, green gas is virtually carbon neutral, so it’s better for the environment.

Powering the future

Green gas is a way of harnessing waste products to create energy for your home. It’s likely to play an increasingly important role in reducing UK emissions by replacing regular gas from fossil fuels. Choose a green future tariff and you’ll be helping to create demand for greener gas – and a greener Britain.

Support carbon-cutting projects around the world

As green gas is still a relatively new way to heat your home, we also carbon offset the remaining 94% of your gas use. We do this by supporting carbon-cutting and environmental-protection projects across the world. What’s more, you’ll also protect five trees in the UK for each year of your gas tariff.

Inspiring change. Sign up to a Greener Future

Choose a Green Future tariff and you’ll also protect five trees per fuel in the UK for every year of your tariff. Through your tariff you’ll reduce your environmental impact even more, supporting a greener, more sustainable future.

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Frequently Asked Questions

What’s green gas?

Green gas (also known as biomethane) is made from renewable sources such as leftover food and farm waste. It’s just like normal gas made from fossil-fuels, but it’s produced differently and is virtually carbon neutral when burned, making it a greener, more sustainable option for the future.

How is green gas better for the environment?

When fossil fuels are burned, they release carbon dioxide that was created and stored millions of years ago into the atmosphere. But because green gas is made from organic waste, so the carbon it releases is balanced by the carbon dioxide that plants absorbed as they were growing. That’s why we describe it as carbon neutral.

Organic matter naturally releases CO2 when it decomposes, and by capturing it and converting it into useful green gas, it can then be used to power your home. Unlike regular gas, it doesn’t come from fossil-fuels which are a finite resource that will eventually run out. Because organic matter grows using the sun’s energy, it’s a continually-renewable source of energy, making it a greener, more sustainable option for the future.

How is green gas produced?

Green gas is produced through a fermentation process called anaerobic digestion. Microbes are used to breakdown waste organic matter into gases including biomethane which has the same composition as the methane gas taken from fossil fuels. The biomethane is then separated and fed into the national gas grid and piped to homes across the UK. Many types of waste matter can be used to make biogas, such as agricultural waste, leftover food or crops – even manure.

How does biogas get to my home?

We match 6% of the gas you use on a Green Future tariff with green gas made from renewable sources, this means that for 6% of the gas you use, the same amount of green gas from renewable sources will be fed into the national gas grid.

It isn’t possible to trace green gas from any one source right through to your home (it gets mixed together in the grid), but we can show that 6% of the gas you use on your Green Future tariff comes from renewable sources. That’s because we purchase certificates called Renewable Gas Guarantees of Origin (RGGOs) from the Green Gas Certification Scheme (GGCS). The GGCS tracks each unit of green gas, and for each kilowatt hour added to the grid, one RGGO certificate is issued.