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Octopus Energy launches ‘world’s first’ tariff offering 50% discount when wind is blowingThe 'Fan Club' tariff could save consumers more than £200 per year
US startup unveils battery made from nuclear waste that could last up to 28,000 yearsThe nano-diamond battery's power comes from radioactive isotopes used in nuclear reactors
Smiley face emoticons “save people energy”A smiley face isn’t just a friendly way to sign off a text message – it can also be a powerful tool...
