Solar energy as a heat source for homes has potential, but there are some problems that need to be resolved.
In one hand,solar energy is a unlimited resource. The energy come from the sun-light which can exist for a period much longer than we can image. Human do not need to worry about the remain of this energy just like human worry about oil. In addition, solar energy do not make pollution to the environment.Unlike oil or gas, using solar energy does not produce any CO2,SO2,etc, therefore solar energy is a kind of clear energy. What's more, the solar resource is not controlled by humans for profit. Every one can access it and use it.
But in the other hand, using solar enery stiil has some problems to be resolved. The construction cost of collection devices is high compare to the cost of oil collcetion deveices. And the collection and storage are not perfected due to the human technology limit. The solar energy collectors also somewhat unsightly which may prevent customers from buying them.
In conclusion, solar energy is a kind of energy with great potenial so it worth us to explore. However, the technology of human to use it is still not mature so there is a long way to go before we can master it.
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