"What do you want for your birthday?" ... A battery bank for my bedroom, to help save the planet
Millions of teenagers are genuinely worried about climate change. Some are doing the big things - protesting, going vegan, badgering their parents to switch energy supplier. But one quietly practical idea is gaining traction: a plug-in portable battery bank, charged overnight on cheap electricity, used to power your bedroom setup during the evening peak. Does it actually reduce carbon emissions? And does it save any money? We ran the numbers for both the UK and the USA.