Solar and wind energy.
1. Solar energy is a clean and non-polluting energy source that is widely used in various equipment and installations. At the Guangxi Science and Technology Museum, solar energy is used to power some exhibits, such as solar cars.
2. Wind power is another common new energy source, particularly suited to coastal areas. At the Guangxi Science and Technology Museum, wind power generation equipment or wind models will be exhibited.
Solar water heaters are currently the most energy efficient, environmentally friendly and practical installations. I've been using it for three years. It only works occasionally when it snows or is cloudy every winter. But that doesn't mean it can't be used in winter, even if the winter is cold, as long as there is sunshine,water. the temperature will increase further. In addition, solar water heaters There are also electric heaters on snowy days, as long as the sewer lines are not frozen, the water temperature will rise to 40 or 50 degrees in no time after only an hour of water. electricity. Saving hundreds of dollars in electricity bills per year is probably nothing. This is what I gain from using it.