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Ecological ecosystem and pollution. Innovative green technologies, green ecology smart systems and recycling for environmental sustainability. Green energy and eco friendly isometric city. Solar power
Futuristic smart city vector illustration isolated on blue background, concept of technological innovative metropolis. Skyscrapers in frame polygonal style at night in the clouds
Energy reduction round icon. Clipart image isolated on white background
vector graphic of national energy efficiency day good for national energy efficiency day celebration. flat design. flyer design.flat illustration.
Energy storage, sustainable energy solutions futuristic concept with lightning symbol inside of sphere in glowing low polygonal style on blue background. Modern abstract design vector illustration

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