Double-sided solar + after day system combining the efficiency increase of 35%

Solar photovoltaic net news: according to past research, double-sided solar can increase 20% of power generation benefit, accelerate the solar case field or the rooftop solar back, so if plus after day system, efficiency can be increased? Singapore scientists recently, double-sided solar and chase, system combination, can increase 35% of power generation benefit, the average electricity price can be reduced by 16%.

the current common methods of solar panels installed mainly adopts fixed installation, set the solar panels on the roof, fixed support, only positive capture sunlight, the solar module can't chase chase day light, the sun's trajectory tracking and adjust the best Angle, but also because stationary, solar module would be on the side of the solar battery.

but in order to in the limited space to maximize the power efficiency, recently there have been studies mentioned the advantages of solar energy, solar photovoltaic (pv) network, the two sides are equipped with solar cell module, in addition to the positive battery can absorb sunlight, on the back of the module also can absorb the ground reflection and diffuse light, can significantly improve the efficiency of the solar power, at present there are more and more the field started using double-sided solar technology, easily at high altitudes snow country such as Europe, Japan, solar panels, on the back of the module can absorb the reflective of the snow on the ground, increase capacity, recent studies have also pointed out that double can increase 15 - solar energy 20% of power generation benefit.

but there is only one way to increase the use of land is not, after day solar system can also improve the efficiency of the power generation, which after day type of stent type and uniaxial and biaxial, single shaft can turn east-west, is suitable for the solar array, north and south to biaxial type can 360 & deg; Rotation, according to the location of the sun in different season, tracking the sun azimuth Angle, height, maximum collecting sunlight, although it would add an additional cost, but according to the climate, single shaft type 10 - will increase 25% capacity, biaxial most can bring extra 45% more electricity.

now by Carlos Rodrí guez - Gallegos led solar energy research institute of the national university of Singapore Singapore ( SERIS) If a team is curious, double-sided type solar and chase, strong hands, how benefits can bring to the field?

team through NASA's earth clouds and radiation energy system ( CERES) With earth from three different agency rizhao mode field data, analysis of nominal capacity of solar module again, and finally found that single shaft type double solar panels can increase 35% electricity, solar panels, biaxial + double benefit is higher, can increase 45%.

team and at the same time considering the unit cost countries, building and transport costs, after all, whether with day type or double module, can make the field cost increases, the team also has research together after, double-sided solar whether can reduce the overall cost, finally found the homogenizing power generation costs, LCOE) Can be reduced 16%, that is to say, solar power plants to produce per KWH of power in the life expectancy of the costs, many cheaper than normal power plant.

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this paper statistics the September to today issued a total of 2. 85 gw pv power plant EPC and 1. 9 gw component bid opening information. Among them, the EPC project owner units is given priority to with soe/state, solar energy, this also reflected from the side, solar panels, in project bidding and parity, the state-owned enterprises have become the absolute main force. Specifically, CGNPC in development of 410 mw, 603 mw, guangzhou energy saving 220 mw, 345 mw, jin can group the people vote for 200 mw, 190 mw hubei energy group, huaneng power 180 mw