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When energy suppliers first began offering green tariffs, they tended to be a more expensive option, but these days, that’s rarely the case. Green energy comes from renewable sources, such as the sun, wind and sea. Unlike coal, gas and oil, which are finite resources, we’re never going to run out of these greener energy types. A more diverse range of energy sources reduces our dependence on fossil fuels. The more demand there is, the more companies are prepared to invest in wind and solar farms or hydroelectric power stations.

Traditional fuel sources are among the biggest causes of climate change, as well as air pollution. Green energy can be generated without producing the greenhouse gasses released by fossil fuels, which in turn helps to lower pollution levels.

At the moment, the energy supplied to most of our homes comes from a variety of sources, both renewable and traditional. But, if you sign up to a green energy tariff, your supplier will match or replace the total amount of energy you take from the grid with power from a renewable source. Some green tariffs offer 100% renewable energy, while others include a smaller proportion. If you’re planning to switch suppliers, it’s definitely worth checking the percentage and factoring that into your decision-making process.

Our other tip if you’re ready to make the switch is to do it via a cashback website, such as TopCashback or Quidco. You can sign up for free, and then click through to the relevant supplier website to check out what they offer. If it’s not right for you, return to the cashback site and try the next company on the list. At the moment, cashback rates vary from £30-£240 (yes, really), and you can also earn by using their links to visit comparison sites.

As well as offering more control over how your energy is sourced, you may find a green tariff is cheaper for your home. Add to that better for the environment, and there’s really no reason not to go for it.