Because of positive features of solar photovoltaic arrays, it will be possible to reduce emissions into the environment on 353 million tons by 2025. This figure is equivalent to the volume of emissions in Australia and New Zealand, or to 150 coal-fired power plants.


The share of solar energy in the total balance will be even greater till 2040. If we assume that global energy consumption increases from 23.228 billion kWh in 2025 to 36,500 billion kWh by this time, the solar energy will make 16% of global electricity production.
It should be borne in mind that solar energy has several problems that will make a significant obstacle on the way of its development.
First, solar energy is not suitable for all regions of the world. The flow of solar energy on the Earth’s surface is strongly dependent on latitude and climate. The average number of sunny days can vary greatly in different places annually.
Solar power does not work at night and not work effectively in the morning and evening twilight. The power consumption peak falls on the evening. In addition, power plants can fluctuate sharply and unexpectedly due to changing weather.
Solar cells have a number of technical shortcomings such as:
• high cost;
• lack of efficiency;
• the surface of cells must be cleared of the dust and other contaminants (it may be difficult when their area is several square kilometers);
• efficiency of photovoltaic cells significantly decreases when they are heated, so there is a need to install cooling systems, usually water cooling systems;
• after 30 years of operation have passed, the efficiency of photovoltaic cells begins to decline.
Despite the ecological purity of received energy, photovoltaic cells themselves contain toxic substances. The massive use of them in the near future, will put the question of their utilization, which also has not acceptable from an environmental point of view solutions yet.
In general, we can say that the market of solar energy is commercially prospected. This is due to the fact that oil and gas reserves will be close to depletion and solar electricity to offset any reduction in output by mid-century. An increase in carbon dioxide emissions in the atmosphere should lead to accelerated development of environmentally friendly solar photovoltaic to reduce pollution and global warming.
The role of solar energy in the energy of the future is determined by the possibility of developing and using of new physical principles, technologies, materials and designs to create a competitive solar power stations.
The following conditions should be met to ensure the competitiveness of solar energy:
• efficiency of solar power should be at least 20%;
• annual number of hours of the solar energy power use should be equal to 8 760 hours, that is to say, it should generate electricity 24 hours a day 12 months annually;
• lifetime of solar power should be at least 50 years;
• cost per agreed kilowatt peak power of solar power should not exceed 1000 dollars;
• production of a semiconductor material must not exceed 1 million tons per year at a price no more than $ 12 / kt;
• Materials and technologies for production of solar cells and modules should be clean and safe.

It is a real gift that we live in the times when the government start to understand the value of living in harmony with the nature on this planet. And solar power grants is a real case proof of it. If you want to switch to solar energy, please read more about how solar power grants and how exactly you can exploit these solar power grants for your living.

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