Peter thought I was joking when I suggested booking the special extended tour of Itaipu Dam. The mega-structure, split geographically and politically between Brazil and Paraguay, is one of the world’s largest hydroelectric projects. With 18 massive turbine generators and a reservoir stretching 160km (100mi), Itaipu Dam generates 90 million megawatt hours of energy every year. To put that into context, Brazil would have to burn 536 thousand barrels of oil per day to obtain equivalent energy from thermoelectric plants.
Naturally, I wanted to know more.