Solar energy is important for our house
Anglų esė. Solar energy is important for our house.
In today's climate of growing energy needs and increasing environmental concern, alternatives to the use of non-renewable and polluting fossil fuels have to be investigated. One alternative is solar energy.
The heat of the sun is about equivalent to burning a billion trillion tons of coal an hour. Even though only a small fraction of that heat ever reaches the earth it is still more than enough to power the whole world.
Solar energy is practical source of heat for small buildings in locations that receive reasonably abundant sunshine. Africa crosses the equator and gets good solar radiation all year round, but we live in Lithuania, where solar radiation is less. However, Lithuania and the sun can be useful for people.