World’s largest solar bridge

The world's largest solar-powered bridge is Blackfriars Bridge in London, UK, which spans the River Thames. It was completed in 2014 as part of the upgrade to Blackfriars railway station. The bridge's roof is covered with 4,400 photovoltaic panels that generate electricity, contributing to a portion of the station's power needs.

A new roof was installed, housing solar panels over 6000 square meters, which is enough to cover 23 tennis courts. On a sunny day, the canopy can produce up to a megawatt of electricity.

"It generates enough electricity to make about 80,000 cups of tea a day," explains Chris Binns, head of engineering at Network Rail who led the upgrade. The use of solar power now provides up to 50 percent of the energy needed at the station and is estimated to reduce carbon emissions by 511 tons per year.