D & I hull of the boat out of the water , which massively increases efficiency and , therefore , the amount of power that we need and the amount of energy that we need to propel a boat forward is greatly reduced .

That is a more sustainable way of doing boat racing .

The electric powertrain is much quieter than a petrol one , so noise pollution is a really key thing to look at above and below the water . The series has done work with Carlos Duarte , the globally renowned climate scientist . He ' s done analysis on the noise below the water and he can see the wildlife ' s reaction to the noise of the boats . That is again greatly reduced compared to the petrol engine boats that you ' d see racing all around the world with petrol engines attached to the back of their boats .

Ben : It just didn ' t occur to either of us the impact that noise pollution has from internal combustion engines on boats on the wildlife underwater until we got involved into this project .

TOM BRADY , CO-TEAM PRINCIPAL , TEAM BRADY