Solar energy seems to offer more hope than any other source of energy, particularly because those areas most in need of water lie rather close to the equator and have a relatively clear atmosphere.
Solar energy may be able to play a significant role in our daily life.
We are exploring new sources, such as solar and atomic energy.
The ancient Greeks knew as much about the solar system as we do.
The total solar eclipse can be observed next year on June 22nd.
Neptune is the eighth planet of the solar system.
Solar energy is a new source of energy.
We should make the most of solar energy.
Let's talk about solar energy.
The output power of a one square meter solar panel is about one watt, so it is difficult to use solar power on a large scale at present.
Solar energy does not threaten the environment.
The problem is that solar energy costs too much.
The house is heated by solar energy.
I hope for a solar battery car.
In Japan solar heat is used more for solar water heaters than for electricity generation.