Exceptional Engineering: The Making of a Wind Turbine | Engineering Documentary Electricity harnessed from wind has become the second largest source of energy in Germany since 2017 - and has thus out powered nuclear and coal. Nearly 30,000 on- and off-shore wind turbines are operating throughout the country, covering approx. 19 percent of energy consumption. Our report follows the construction of a new wind power plant in Falkenthal in Brandenburg. Once installed, the windmill will be 179 meters high, supplying up to 5,000 households a year.