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Wind turbines for electric power production, Zaragoza province, Aragon in Spain.
High voltage pylons with electric power lines transfering electricity from solar photovoltaic sells at sunrise. Production of sustainable energy concept.
Aerial view of sustainable electric power plant between agricultural farm fields with solar photovoltaic panels for producing clean electrical energy. Renewable electricity with zero emission concept
wind turbines in the Oiz eolic park
Engineers, architects, and designers collaborate to design a building that employs natural energy.

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