Where does our electricity come from?
Read on to find out where our electricity came from between 1 April 2025 and 31 March 2026.
Going greener
At OVO, we’re helping customers save money and cut carbon. We want the future of energy to be cleaner, greener, and more affordable – for everyone in the UK. So it’s great news that on average, 48% of the power flowing into homes came from greener sources – like wind, solar, and hydro.
By adding our Greener upgrade to your tariff you'll get 100% renewable electricity from traceable sources in the UK, as well as helping new independent renewable power generators get started.
How you getyour energy
No matter which energy supplier you’re with, the energy that powers your home comes from the national grid. Your home will run on the electricity source that’s closest to you – depending on where you are.
For example, if you live near a wind farm and it’s a windy day it's likely you and your neighbours are getting your electricity from there. When you change energy supplier or tariff, the electricity flowing into your home stays the same.
Aboutrenewable tariffs
Some energy suppliers claim to sell energy that is “100% renewable.” To be able to say that, many of them buy certificates called REGOs (Renewable Energy Guarantees of Origin). But these certificates don’t tell the whole story.
REGOs don’t actually make the UK electricity grid any greener. That’s because the way they work is by matching up renewable power that is already being generated with the power someone on a “100% renewable” tariff uses in their home.
You might think by signing up to that tariff you’re supporting new renewable power – but, unfortunately, you’re not. These tariffs alone don’t generate any more green energy or give you 100% green energy at home, they just apportion what’s already there to specific people. Helping those suppliers to look better on paper.
The path togreener energy
At OVO, we stopped using REGO certificates as standard in 2023. We believe there’s a better way to bring more renewable power to the UK and be up front about it too. So we buy electricity for our Greener Electricity customers directly from renewable generators all over the country. We also invest in new, independent renewable power. We think this does more to actually cut the UK’s carbon footprint.
Actions that save energy and use power in a smarter way are just as important for the country’s carbon footprint. So we’re helping customers take steps to make energy better for them, their wallets, and the planet. Everything from using energy at greener times with Power Move to getting a heat pump or an electric car. This all means we’re making good progress towards reaching true net zero by 2035, with minimal reliance on carbon offsets in line with the latest science.
Reporting on our fuel mix
The energy regulator, Ofgem, requires all energy suppliers to report on their “fuel mix”. OVO’s focus is on growing how green the grid is for everyone. For the period April 2025 to March 2026, our fuel mix was as follows: Natural Gas 64%, Coal 12%, Renewables 12%, Nuclear 7%, Other 5%. The carbon intensity was 393g per kWh, and the radioactive waste was 0.0004g per kWh.
Greener Electricity: helping the UK run ongreener power
For customers who really want to help our country run on more greener power, we offer our Greener Electricity upgrade.