Solar energy than fossil energy in where

1, the fossil energy problems

& Oslash; Energy shortages: due to the limitations of conventional energy sources and the distribution of the inhomogeneity, caused most of the countries in the world energy supply can not meet the needs of the development of its economy

& Oslash; Environmental pollution: at present, due to the burning of fossil fuels such as coal, oil, each year hundreds of thousands of tons of sulfur and other harmful substances into the sky, make the atmosphere environment badly polluted, directly affect the quality and health of the residents in the life. Local forming acid rain, serious soil and water pollution. These problems will eventually force people to change the energy structure, rely on the use of solar energy and other renewable clean energy to solve.

　　Ø The greenhouse effect: the use of fossil fuels not only cause environmental pollution, at the same time due to the huge amount of greenhouse gas emissions and the greenhouse effect, causing global climate change.

2, characteristics and its development and utilization of solar energy resources

reserves & other; Throughout limitless &; : relative to human history, the time of the sun can continuously supply the earth can be said to be unlimited. Relative to the limitations of conventional energy, solar energy has the reserves & other Throughout limitless &; , an inexhaustible inexhaustible. This determines the development and utilization of solar energy will be the most effective ways to solve the lack of conventional energy, dried up.

the universality of existence because of the different latitude, climate condition difference caused by solar radiation is not uniform, but relative to other energy, solar energy has the universality of existence for most of the earth, can be in situ. For lack of conventional energy sources of countries and regions to solve the energy problem

provides the prospects for using clean: solar energy as a clean energy such as wind power, tidal power, its development and utilization of almost don't produce any pollution, together with its reserves of unlimited, is the ideal alternative energy sources.

use the economy: can look from the two aspects of solar energy utilization efficiency. One is the inexhaustible solar energy, unlimited, and when receiving solar energy does not impose any & other; Tax & throughout; Help yourself, can be anywhere; Second, under the current technology development level, some solar energy use has economy, such as solar water heater, solar street light, solar garden light an input is higher, but its not use process energy consumption, and electric water heater and gas water heater is in use when still need to expend, the research results show that [3], the solar water heater has very strong competitiveness. Along with the development of science and technology and the technical breakthrough of human development and utilization of solar energy, solar energy utilization of the economy will be more obvious.