The National Energy Board Comprehensive Department officially issued a distributed photovoltaic development pilot notice, while putting forward the “appropriate to build as much as possible”, the power grid “should be connected as much as possible” requirements, while the previous Tesla released the relevant photovoltaic roofing products SolarRoof in 2019 and Considering photovoltaic roof as one of the main business in the future.

Natural sunlight irradiation in the semiconductor device p-n junction, resulting in a new cavitation - electron pairs, in the p-n junction under the action of the electric field, cavitation from the n area into the p area, electronic components from the p area into the n area, connected to the circuit will result in the total flow of electricity. This is the photoelectric effect solar cells work on the principle. Solar power plant way solar power plant there are two ways, one is the light - heat - electricity conversion method, the other is the light - electricity immediately conversion method.

From the appearance of the above words, monocrystalline silicon cells, the four corners of the arc, the surface has no pattern; and polycrystalline silicon cells, the four corners of the four corners of the square angle, the surface has a pattern similar to ice flowers; and amorphous silicon batteries, which is what we usually say that the thin film components, which is not like the crystalline silicon cells can be seen out of the grid, the surface of the mirror as clear and smooth.

PV modules, off-grid inverters (including PV controllers/inverters), storage batteries (lead-acid/colloid/lead-carbon/lithium ternary/lithium iron phosphate, etc.), PV mounts, cables, and distribution boxes are all important components of a PV off-grid system.