Our Fuel Mix

100% green progress

Where our electricity comes from

This is where we publish our Fuel Mix – to show where our electricity comes from.

We update this table each year as the figures come in. It presents a good perspective on our progress – as we turn brown energy into green.

The latest year we have final figures for is the year ended March 2013 and we’ve added those to the table below.

We had over three times as much green energy this year as we did when the figures were first produced back in 2006. But we’re not stopping here.

From 1 August 2013 we've taken our fuel mix to 100 per cent green electricity, for every unit of electricity that our customers use, we now source a unit of 100 per cent green electricity. 


Fuel mix history in detail

Below is our fuel mix for the last five years with the UK National Average figures in the end column for comparison. As you’ll see, we’re making great progress turning brown energy to green.

Fuel Supply Ecotricity National
  Apr 08 - Mar 09 Apr 09 - Mar 10 Apr 10 - Mar 11 Apr 11 - Mar 12 Apr 12 - Mar 13 UK average
Natural Gas 19.1% 32.3% 24.0% 19.7% 10.9% 27.7%
Coal 17.1% 20.2% 17.5% 12.1% 18.5% 38.4%
Nuclear 16.0% 4.3% 2.6% 2.3% 1.7% 20.6%
Other 2.2% 2.2% 1.8% 1.6% 1.4% 2%
All Brown 54.4% 59.0% 45.9% 35.7% 32.5% 88.7%
Renewable 45.6% 41.0% 54.1% 64.3% 67.5% 11.3%
Environmental Impact
232.4 308.6 266.6 195.5 219.1 469.3
0.00160 0.00043 0.00026 0.00021 0.00014 0.00185

* CO2 emissions are in g/kWh.

** Radioactive waste relates to high level waste in g/kWh.

Renewable supply figures includes a 1.11 factor for transmission and distribution losses. Fuel Mix Disclosure table relates to electricity supplied through the Renewable Energy Company Ltd.

People Power

All of this progress is down to people like you, the best thing you can do and the most change you can bring with your electricity bill – is simply by being with us.

Over the last ten years we’ve spent an average of £265 per customer each year on building new sources of green electricity. You can switch here, or find out more.

Al Gore

As more and more people understand what's at stake, they become a part of the solution, and share both in the challenges and opportunities presented by the climate crises.

Al Gore