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The new cases are now smaller, lighter and more robust, ensuring that the instrument and accessories are fully protected.

Solar power is the conversion of sunlight into electricity, either using concentrated solar power that the concentrated heat is then used as a heat source for a conventional power plant, or using photovoltaics that converts light into electric current.

The early solar cell researches went back to 100 years ago. Photo cells have been developed in the 1980's and growing rapidly in the 1990s.

Photovoltaics reach up to 6430MW till 2009.

Photovoltaics (PV) is a method of generating electrical power by converting solar radiation into direct current electricity using semiconductors that exhibit the photovoltaic effect. Photovoltaic power generation employs solar panels composed of a number of solar cells containing a photovoltaic material.

The majority of photovoltaic modules are used for grid connected power generation. In this case an inverter is required to convert the DC to AC.

Solar electric generation has the highest power density among renewable energies.

Solar power is pollution-free during use.

PV installations can operate for many years with little maintenance or intervention after their initial set-up, so after the initial capital cost of building any solar power plant, operating costs are extremely low compared to existing power technologies.

Grid-connected solar electricity can be used locally thus reducing transmission/distribution losses.

Compared to fossil and nuclear energy sources, very little research money has been invested in the development of solar cells, so there is considerable room for improvement.

Developing countries where many villages are often more than five kilometers away from grid power are increasingly using photovoltaics. In remote locations solar power is working to provide electricity for areas that are off grid.

Solar cells produce direct current electricity from sun light, which can be used to power equipment or to recharge a battery.

Solar photovoltaic power stations have been built.

The less solar power costs, the more favorably it compares to conventional power, and the more attractive it becomes to utilities and energy users around the globe.

It is estimated that photovoltaics will provide 10% of the worlds electricity in 2030 and 20% in 2040. By the end of 21st century, photovoltaics will provide 60% of the world's electricity.