Businesses across five major UK cities are spending £60 million on wasted energy, which could be used to power more than 100,000 homes, according to a report from the Green Alliance think-tank.
London was the worst offender, accounting for £35m of wasted energy, followed by Manchester, Bristol, Leeds and Birmingham.
Caterina Brandmayr, Senior Policy Analyst at Green Alliance, said: “It’s hard to see why dealing with this problem isn’t yet a priority for companies in terms of cost savings or for the government in reaching its carbon targets.”
The think-tank pointed to solutions including artificial intelligence (AI) energy-optimisation systems, which could cut energy use by as much as 14% in commercial buildings and deliver pay back on their investment costs in just a few months.
It also pointed to examples from other countries, including Australia, where the National Australian Built Environment Rating System has brought down energy use across the country’s offices by nearly 40% over the past 13 years.