• Will I get cut off if the sun doesn't shine or the wind doesn't blow?

  No. Most homes in the UK get their electricity from the National Grid. When you switch to a clean supplier, they guarantee that for every unit of electricity you take out of the Grid, they’ll put the same amount of clean energy back in, helping to clean up our energy supply. Better electricity, rain or shine.Few readers

• Can I get clean gas?

  Traditionally, our electricity was generated by burning fossil fuels. The energy from this drove turbines, which generated the electricity. By replacing fossil fuels with energy from the sun, wind and water, we can generate clean electricity without the pollution and carbon emissions. Gas is unfortunately much harder to replace, because we’re directly burning a fossil fuel, rather than using it to generate a different form of power. It is possible to generate gas from plant crops (including fooFew readers

• Isn't clean energy expensive?

  No. Most clean energy tariffs are now hundreds of pounds cheaper than the standard variable rate tariffs most households in the UK are on. That’s because the cost of generating clean energy is getting lower and lower. Think about it – once you’ve built a wind turbine or a solar panel, nature does the rest! In fact, wind is now the cheapest form of energy in the UK and other renewables like solar aren’t far behind.Few readers

• What is 'clean energy'?

  We use ‘clean’ energy as shorthand for power from renewable sources – sun, wind, water (river dams, tidal or wave power) and biofuels (such as gas released by rotting food or crops 1 . Unlike electricity generated by burning dirty fossil fuels like oil, coal and gas, clean energy has very little impact in terms of climate change and air pollution. Although nuclear power has a smaller impact than fossil fuels in terms of climate change, we know a lot of people currently have concerns about buyingFew readers

• How do clean tariffs work?

  Most UK homes are powered by electricity from the National Grid, and their electricity may be produced by any number of regional generators, using both ‘dirty’ and clean sources. If you’re wondering how your tariff could be ‘clean’, imagine the Grid being a bit like a pond, with both dirty water and clean water flowing into it. When you sign up to a clean tariff, the supplier guarantees that they’ll put as much clean energy into the pond as the energy you take out. The more people who buy cleanFew readers