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Eco-friendly building in the modern city. Sustainable glass office building with trees for reducing heat and carbon dioxide. Office building with green environment. Corporate building reduce CO2.
Electrical plug in outlet socket at home. Energy efficiency concept
Wind power plant and technology. Smart grid. Renewable energy. Sustainable resources.
Energy efficiency chart on cardboard texture. Horizontal banner with eco paper texture and energy efficiency house symbol. Energy class, bio energetic and ecology concept. Copy space for text

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