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Energy efficiency concept. Businessman touching virtual screen of energy efficiency rating for energy efficient house building rate label audit.
Renewable energy analyst conduct filed observations on solar farming to monitor and assess efficiency. Presenting findings and recommendations to supervisors, clients, investors for project approval
heat pump energy as a heater and alternative green energy - 3D Illustration
Energy efficiency rating concept, ecological house renovation, Electrical watt-hour meter for customer, Energy consumption, ecological and bio energetic energy class.
Girl helping mother to adjust, lower heating temperature on thermostat. Concept of sustainable, efficient, and smart technology in home heating and thermostats.

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