They used the Juncal viaduct in the Canary Islands as a reference but say the concept could be applied in heavily built-up territories or natural areas with limits on new construction.
The researchers established that the wind blowing between the pillars on this kind of infrastructures can move wind turbines and produce energy.
In the Juncal Viaduct case, the evaluated power would be about 0.25 MW per wind turbine. So, with two turbines, the total power output would be 0.5 MW, which is classified in the medium-power range.
“This would be the equivalent to 450-500 homes average consumption,” says Soto, who adds: “This kind of installation would avoid the emission of 140 tons of CO2 per year, an amount that represents the depuration effect of about 7,200 trees.”
Bill Condie is a science journalist based in Adelaide, Australia.
Read science facts, not fiction...
There’s never been a more important time to explain the facts, cherish evidence-based knowledge and to showcase the latest scientific, technological and engineering breakthroughs. Cosmos is published by The Royal Institution of Australia, a charity dedicated to connecting people with the world of science. Financial contributions, however big or small, help us provide access to trusted science information at a time when the world needs it most. Please support us by making a donation or purchasing a subscription today.