I'd put my money on the sun and solar energy. What a source of power! I hope we don't have to wait 'til oil and coal run out before we tackle that.
Thomas Edison, 1931
Solar irradiaton in Germany
History of photovoltaics
Becquerel discovered the photoelectric effect - the history of photovoltaics begins.
Adams and Day prove the photoelectric effect of a selenium crystal - electricity is generated from light for the first time.
Through research of the photo effect Hallwachs lays the foundation for the development of photo cells, the photo electricity and light-quantum hypothesis.
Einstein explains the photoelectric effect.
Czochalski develops a procedure for manufacturing mono-crystalline materials.
Einstein receives the Nobel prize for his illustration of the photoelectric effect.
Chapin, Fuller, and Pearson produce the first silicon cells (efficiency factor 4%).
Beginning of the terrestrial application for the relay station of a telephone circuit in Georgia.
The first satellite equipped with solar cells is sent into space.
The first amorphous silicon solar cells are manufactured.
The global photovoltaic production exceeds 500 kW.
The first German and largest European photovoltaic power plant with a capacity of 300 kW starts trial operations on the island of Pellworm.
The Grid Feed-in law becomes effective in Germany. The minimum compensation is 8,49 Cent/kWh of solar power. This leads to the installation of the first solar systems
for domestic use (1-5 kWh). The worldwide first photovoltaic facade is built in Aachen.
E.ON Bavaria outfits a permanently inhabited location with a self-sufficient off-grid solar power supply system in Flanitzhütte for the first time in Europe.
As part of its project "sun at school" E.ON Bavaria gradually equips 544 Bavarian schools with construction kits to set up their own photovoltaic systems
for learning and teaching purposes. E.ON Bavaria begins "citzens for solar power", a public participation plant in Unterföhring by Munich.
The worlds largest photovoltaic on-roof installation with 1 MW takes up operation atop of the Munich Convention Center. A total of 14 MW of solar power systems are
installed in Germany.
The accumulated worldwide photovoltaic capacity reaches 1,000 MW.
The German Renewable Energy Sources Act (EEG) goes into effect.
The accumulated worldwide photovoltaic capacity reaches 2,000 MW.
The accumulated worldwide photovoltaic capacity reaches 4,000 MW.
The solar roof at the exhibition Munich in Munich-Riem has been in operation for 10 years. During this time almost 10 million kWh of solar electricity have been
fed into the power network and 6,500 t CO² emissions have been avoided.
The accumulated worldwide photovoltaic capacity reaches 16,000 MW.
The accumulated worldwide photovoltaic capacity reaches 23,000 MW.
The accumulated worldwide photovoltaic capacity reaches 39,000 MW.
The accumulated worldwide photovoltaic capacity reaches 67,000 MW.