male industrial engineer and female technicians wearing safety uniform working on rooftop factory, check for maintenance and repairs solar panel boards.industrial of renewable energy. power generation from solar energy. - energy efficient 個影片檔及 b 捲影像00:06
economising by turning down the heat using room thermostat. female hand. - energy efficient 個影片檔及 b 捲影像00:08
sunset or morning of aerial view of the wind turbines in the sea, renewable energy, clean renewable green wind power.classic energy concept. - energy efficient 個影片檔及 b 捲影像00:26
the green rotating earth that represents renewable energy and sustainable energy sources that is important to the world - energy efficient 個影片檔及 b 捲影像00:12
4k close-up of human finger pressing on power button on electrical equipment to start or turn on - energy efficient 個影片檔及 b 捲影像00:16
ecology concept and environmental, sustainable energy development. sustainable resources concept. building, forest - energy efficient 個影片檔及 b 捲影像00:16
hand turning on and off thermostat on a wall mount water furnace heater panel to save energy bill - energy efficient 個影片檔及 b 捲影像00:15
engineer walking in wind turbine farm with solar panel, green power technology - energy efficient 個影片檔及 b 捲影像00:37
close-up of human finger pushing the button to turn off a washing machine - energy efficient 個影片檔及 b 捲影像00:07
african american woman adjusting the temperature on the thermostat of her home - energy efficient 個影片檔及 b 捲影像00:07
women's reading a handbook and touching digital screen for setting a new refrigerator - energy efficient 個影片檔及 b 捲影像00:14
a bird's eye view of the parking lot with solar panels on the roof - energy efficient 個影片檔及 b 捲影像00:09
dolly in to smart energy meter with money and bills in domestic interior. - energy efficient 個影片檔及 b 捲影像00:12
mid adult man arrives home and uses a smart device to turn on the lights - energy efficient 個影片檔及 b 捲影像00:09
time lapse : hong kong, high-rise building, crowded city and high electricity consumption. - energy efficient 個影片檔及 b 捲影像00:06
flying through cityscape with pulsating traffic - long exposure, light trails - energy efficient 個影片檔及 b 捲影像00:21