Scientists have called for people to go “urban mining” after a study revealed that old cables, phone chargers and other unused electrical goods thrown away or stored in cupboards or drawers could stave off a looming shortage of copper.

The research found that in the UK there are approximately 823m unused or broken tech items hiding in “drawers of doom” containing as much as 38,449 tonnes of copper – including 627m cables – enough to provide 30% of the copper needed for the UK’s planned transition to a decarbonised electricity grid by 2030.

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Copper is essential in the drive to decarbonise the economy – being a crucial element of solar and wind developments as well as electric cars.

The study found that unused electrical goods could contain as much as £266m worth of copper. Scott Butler, from Recycle Your Electricals, which produced the study, called on the public to start recycling their unwanted electrical goods.

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Cables represent one of the UK’s biggest e-waste challenges, according to the research, with UK households throwing away or holding on to an average of 23 cables. Research by the Critical Minerals Association has identified that they contain at least 20% copper – meaning that across all UK households, cables alone could contribute 3,251 tonnes of metal.

The Royal Society of Chemistry [RSC] has calculated 347,000 tonnes of copper would be needed to build the required number of wind turbines and solar panels by 2030.

“The UK needs to wake up to just how important copper is in achieving our greener future,” said Izzi Monk, RSC policy adviser for the environment. “We are potentially facing imminent and substantial supply concerns where we won’t be able to meet the global demand for this vital material. That’s why we’re calling for government to commit to a strategic, joined-up approach to materials that considers these supply risks.”