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Solar panels wind turbines installed as renewable energy sources for electricity and power supply. Innovation and technology, environmental friendly energy. Solar farm under sunny day
Aerial top view Electrical substation with high voltage switches, wires, transformer, ceramic insulators.
Sewage treatment plant from above. Grey water recycling. Waste management theme. Ecology and environment in European Union.
Solar panel against sunset sky background. Windmill, photovoltaic power plant. Green energy technology concept

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