Many years now, the methods people use solar energy are diverse and abundant, simple cooking, heating and cooling and as complex as air bubbles, salt heat storage is often or molten salts, etc.

Estimates of total global solar energy exploitation in the non-power applications such as on, in a year such as 2007 numbers reach 150-200 GW.

But the most important uses of solar energy today and in the future is still producing power. Here, two types of solar power production technology is widely developed, namely: Convergence Technology Solar CSP (concentrated solar power) and photovoltaic technology SPV (Solar Photovoltaic).

SPV Solar Power Technology

In photovoltaic technology, solar light energy is converted into electrical current, through the photoelectric effect, through photovoltaic cells or solar cells small. The small cell transplant into larger solar panels. The large panels assembled together into modules or suites.

Initially, the solar panels are used for satellite or spacecraft. Now, in the power industry, the main use of solar panels to the grid power is shared by the conversion from direct current to alternating current in the battery.

Currently, solar power cost is still higher than the price of conventional electricity, but in some countries such as Japan or Germany with the financial incentives, the output of solar PV industry has experienced remarkable growth in recent years. In general, worldwide, an estimated total capacity of solar power using photovoltaic technology has exceeded 100 GW.

The number of solar power plants using photovoltaic technology with a capacity of 50 MW or more has to figure 38. In particular, the plant has the biggest capacity (250 MW) at the Agua Caliente Solar Project, in Yuma County, Arizona (USA). But this kind of water plant with most German figure 14.

CSP solar power technology

Convergence Technology Solar CSP (concentrated solar power), also known as solar thermal technology STE (Solar thermal energy). In this technology uses a system of multiple lenses, reflectors and tracking systems to focus sunlight on a large area into a small area.

In this area, especially water or other liquid contained in the tank or pipes is heated up to temperatures of a few dozen or a few hundred degrees, depending on the intended use, such as heating swimming pools, providing warm water for households, energy storage room without lighting or solar generated steam into the power lines to turn turbines to produce electricity in power plants.

The commercial power plant using CSP technology was first developed in the 1980s. So far there are plants such as Solar Energy Generating Systems, the largest in the world, located in the Mojave Desert of California, USA, with a capacity of 354 MW. Estimated total capacity of solar power CSP technology in the world has reached a capacity of 2,227 MW.

The number of solar power plants use CSP technology with a capacity of 100 MW or more reached 12. In particular, the plant has the biggest capacity (354 MW) in the Mojave Desert, California (USA). But this kind of water plant at most Spanish number 11.

Thus, Solar, a new energy, clean because no greenhouse gases emissions, which is a trend in the developed world, particularly in industrialized countries such as Germany, USA, Spain , Italy, Japan.

Vietnam our country more tropical sun and wind, more convergence conditions for the development of this power source.

(According to VietnamNet)