“In (largely) gloomy Germany the area needed by PV panels to supply all electricity generation (nearly 560 TWh in 2012) would be considerably larger. With an average PV output of 100 kWh/m2 (the recent annual mean for both roof - and ground-based installations), it would require about 5,600 km2 covered with modules. That would be the equivalent of nearly 1.6% of Germany's total area, 25% of the country's built-up area, or almost 15% of land claimed by settlements and transportation infrastructure; and roughly 2.7 times the total area of all German roofs, based on an estimate of roughly 25 m2 of roof area per person (Waffenschmidt 2008).”
Quote by Vaclav Smil
Work
Power Density: A Key to Understanding Energy Sources and Uses
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Author
Vaclav Smil
Vaclav Smil, born in 1943, is a distinguished professor known for his extensive research and insightful views across various fields such as energy, environment, technology, and social development. more
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