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Service engineer checking solar cell on the roof for maintenance if there is a damaged part. Engineer worker install solar panel. Clean energy concept.
Modern flat thin line design vector illustration, infographic concept of ecology problem, green energy and alternative fuel, for graphic and web design
Lit light bulb with coins beside it. Increase in energy tariffs. Efficiency and energy saving.
Efficiency energy rating concept. Sustainable development and eco house. Ecological house with low consumption on renovation with insulation.
.energy transition from fossil fuel to green energy.

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