Green gas

It’s the eco-friendly alternative to natural gas

Green gas is kinder, cleaner, and fossil fuel-free.

What is green gas?


Green gas is the climate-friendly cousin of natural gas. 

You might sometimes hear it called “biomethane” or “biogas”. It’s released when food or other natural waste, like manure or crops, biodegrades. This process is called anaerobic digestion. 

Just like natural gas, biogas is sent to the national gas grid, where it’s then pumped into homes across the UK. It works just the same as regular, ‘non-green’ gas, powering your heating, hot water, and cooking.

what is green gas

What is green gas?


Green gas is the climate-friendly cousin of natural gas. 

You might sometimes hear it called “biomethane” or “biogas”. It’s released when food or other natural waste, like manure or crops, biodegrades. This process is called anaerobic digestion. 

Just like natural gas, biogas is sent to the national gas grid, where it’s then pumped into homes across the UK. It works just the same as regular, ‘non-green’ gas, powering your heating, hot water, and cooking.

what is green gas

What is natural gas?


Natural gas is a type of nasty fossil fuel. It’s non-renewable and burning it releases carbon dioxide into the atmosphere – making climate change worse.

It’s mostly made up of methane, and comes from the fossilised remains of ancient animals and plants underground. It’s been down there for millions of years, and is released by drilling or fracking.

natural gas

What is natural gas?


Natural gas is a type of nasty fossil fuel. It’s non-renewable and burning it releases carbon dioxide into the atmosphere – making climate change worse.

It’s mostly made up of methane, and comes from the fossilised remains of ancient animals and plants underground. It’s been down there for millions of years, and is released by drilling or fracking.

natural gas

Where does green gas come from?


Green gas is a much newer (and cleaner) source of energy! It’s the result of an organic process called anaerobic digestion. This is where bacteria are used to break down food waste, manure, crops, and other naturally-occurring things.

Because the process of making green gas only uses organic things, the carbon released into the atmosphere is equal to the carbon those things absorbed as they grew. This means that green gas is close to carbon neutral! 

Both types of gas – natural and green – are supplied to homes from the same gas grid. So we can’t guarantee that the gas that reaches our members’ homes is green gas – no supplier can.

But to prove that the grid is being topped up with as much green gas as you’re paying for, we buy Renewable Gas Guarantee of Origin (RGGO) certificates.

green gas

Where does green gas come from?


Green gas is a much newer (and cleaner) source of energy! It’s the result of an organic process called anaerobic digestion. This is where bacteria are used to break down food waste, manure, crops, and other naturally-occurring things.

Because the process of making green gas only uses organic things, the carbon released into the atmosphere is equal to the carbon those things absorbed as they grew. This means that green gas is close to carbon neutral! 

Both types of gas – natural and green – are supplied to homes from the same gas grid. So we can’t guarantee that the gas that reaches our members’ homes is green gas – no supplier can.

But to prove that the grid is being topped up with as much green gas as you’re paying for, we buy Renewable Gas Guarantee of Origin (RGGO) certificates.

green gas

Benefits of green gas

It's nearly carbon neutral

Burning fossil fuels releases carbon dioxide, which makes the climate crisis worse. But biogas is nearly carbon neutral!

It's renewable

We can get more food and farm waste to make biogas - but we can’t get more natural gas once we’ve run out.

It's a good use for waste

We can make use of materials we'd otherwise send to landfill!

Join OVO and upgrade to green gas

How does green gas work?


Green gas works in exactly the same way as natural gas!

After it’s created in an anaerobic digestion plant, it gets sent to the national gas grid. From there, gas travels to your home, where it fires up your central heating and lights your hob.

Just a few years ago, there was no green gas produced in the UK. Even now, it’s more expensive than natural gas, as there’s not as much of it to go around. But as more and more homes go green, the good news is that it should get cheaper and more readily available.

Find out more about our green energy.

green gas

How does green gas work?


Green gas works in exactly the same way as natural gas!

After it’s created in an anaerobic digestion plant, it gets sent to the national gas grid. From there, gas travels to your home, where it fires up your central heating and lights your hob.

Just a few years ago, there was no green gas produced in the UK. Even now, it’s more expensive than natural gas, as there’s not as much of it to go around. But as more and more homes go green, the good news is that it should get cheaper and more readily available.

Find out more about our green energy.

green gas

What is carbon neutral gas?

Carbon offsetting is all about taking responsibility for your carbon footprint. By supporting projects that reduce emissions and fight climate change.

Here at OVO, we support brilliant tree-planting and conservation efforts around the world. Find out more about our carbon offsetting.

carbon neutral gas

What is carbon neutral gas?

Carbon offsetting is all about taking responsibility for your carbon footprint. By supporting projects that reduce emissions and fight climate change.

Here at OVO, we support brilliant tree-planting and conservation efforts around the world. Find out more about our carbon offsetting.

carbon neutral gas

Already with OVO?

You can still drive change by referring a friend – and we’ll give you a £50 gift card to say thanks!

Learn more about renewable energy

carbon footprint

How to reduce your carbon footprint

Here’s some simple steps to be more planet-friendly and cut down your carbon footprint from home.

Cut your carbon
green energy

What is green energy?


Find out everything you need to know about where renewable energy comes from and how it works.

Go green
a walk into the nature

Electricity: how much does your home really use?

Have you ever wondered how much electricity the average UK home uses?

See the numbers

Frequently asked questions