Koelnmesse starts operating Cologne’s largest inner-city photovoltaic system
500 photovoltaic modules mounted on the newly opened Confex building at Koelnmesse convert sunlight into green electricity. Cologne's largest inner-city ...
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500 photovoltaic modules mounted on the newly opened Confex building at Koelnmesse convert sunlight into green electricity. Cologne's largest inner-city ...
Read more