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Energy Efficiency house. Concept of Energy Efficiency of housing. Chart concept. Speed risk. Smart eco house improvement. Chart concept, certification system element. Vector illustration
Specialist technician professional engineer with laptop and tablet maintenance checking installing solar roof panel on the factory rooftop under sunlight. Engineers team survey check solar panel roof.
Energy efficiency rating label. Energy efficiency scale. Energetic class of domestic appliances. Vector illustration
Service engineer checking solar cell on the roof for maintenance if there is a damaged part. Engineer worker install solar panel. Clean energy concept.
Energy efficiency rating label. Energy efficiency scale. Energetic class of domestic appliances. Vector illustration

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