"Mizukami mega solar", a 40 megawatt-class photovoltaic power station with solar panels spread over the water started operation

Construction of a large-scale mega solar, in which a myriad of photovoltaic panels are floated on water to generate power on a large scale, has been completed in China and supply to the local electricity network has started.

The world's largest floating solar power plant just went online in China
https://www.digitaltrends.com/cool-tech/china-floating-solar-power-plant/

This facility was built in the city of Huainan city in Anhui province near Shanghai. A solar photovoltaic solution company in China "SUNGROW(Sunshine power crotch) "is involved, new energy production facilities are being built in the area where coal was once produced. Its power generation scale is 40 megawatts, and it is said to be the world's largest solar power generation facility of non-land type.


It is said that the movement to build solar power generation facilities on water and offshore is being promoted all over the world, and in India100 kilowatt-class water solar power generation facilityIn addition to being built, Anhui province has already begun operating mega solar of 20 megawatts. Meanwhile, in China, efforts are underway to expand the solar power generation with the nation, and the area on land is as large as 27 square kilometersMegar solar of 850 MW classIt is made.

By the way, in Japan, Daiwa House Industry built in Miyagi prefecture "DREAM Solar Tohoku Plant"Is the largest in Japan with a power generation scale of 230 megawatts and construction of" Ukushima mega solar park "of 430 megawatts generation scale is proceeding in Sasebo City, Nagasaki Prefecture.

Mega solar map | Specialized media for photovoltaic generation PVeyeWEB


Although it is a water and sea mega solar where construction hurdles and management hurders rise compared with land, there are merit also there on the other hand. On land where people's lives and economic activities are carried out, there is a harmful effect that the activity is hindered by constructing mega solar, but if it is above water it will have little effect. This makes it easier to reinforce power sources near urban areas. There is also the effect that the large area of ​​the water surface is covered with solar panels to reduce evaporation of moisture. Furthermore, since the outside air temperature is lower than on the land, it is said to have a good effect on the life of the solar panel.

However, since the power generation capacity of solar power generation is largely affected by climate and sunshine, it can not be a stable power source, and it is only a part that is regarded as a supplementary role of conventional thermal power / nuclear power generation There is no denying that there is. This is due to the fact that it is difficult to stock electricity like water or oil. In order to solve this problem, a mechanism has been created that uses electricity with a large amount of lithium-ion batteries and supplies it to the electricity grid if necessary, and in Tawra, on the island of Hawaii and Kauai, A facility that covers the power of the island is made.

Tesla completes a facility that solves the power of Hawaii and Kauai with a population of about 70,000 by sunlight alone - GIGAZINE


Also, "NAS battery" capable of charging and discharging by chemical reaction of sulfur and sodium ion has been developed, and spread is also desired here.

"Can electricity be stored" Can NAS batteries promote reenergization in Japan? (1/2) | AERA dot. (Aeradot)


As of 2017 the population of the Earth is believed to have reached 7.5 billion people and by the year 2100Over 10 billion peopleWhile it is also seen that it will become a scale, it is inevitable that the limit will come by energy measures that depend on fossil fuels and nuclear energy as in the past. Under such circumstances, the development of sustainable energy such as photovoltaic power being advanced all over the world is required.