Photovoltaic power station is a green power development energy project, safe and reliable, no noise, no pollution emissions, it uses the advantages of the building roof to obtain solar energy, short construction period, short time spent to obtain energy. Installation of photovoltaic power station is required to invest a certain amount of money, in the long run the return is considerable.
Usually, according to the current market price of photovoltaic power station, the installation of a 5kW (covers an area of about 50 square meters) photovoltaic power station system requires about 40-50,000 yuan, the initial investment seems a bit high, but the state currently gives 0.37 yuan/kWh subsidy for home photovoltaic power generation projects, some areas have initial installation subsidies and local electricity subsidies, which greatly reduces the return cycle of photovoltaic power station.
A 5kW photovoltaic power plant can produce 5400-9100 degrees of electricity a year. If all self-use, according to the utility electricity 50 cents per kWh, plus 0.37 yuan / degree state subsidies, a year can save the user about 4698-7917 yuan of electricity, 6-10 years to recover costs.
Generally speaking, the countryside installed photovoltaic power generation is mainly are their own home use, and villa roof device main if the roof can be installed under a few panels. A 275W polycrystalline silicon photovoltaic module size is: 1.65 × 0.992 meters, so, 5KW occupies an area of about 40-50 square, 10KW photovoltaic system occupies an area of about 80-100 square.、
However, the roof is also divided into flat roof and pitched roof, pitched roof PV system capacity will be larger than the flat roof, because the flat roof PV system, need to consider the front and rear two rows of components can not block each other, the maximum amount of power generation can be guaranteed.
Nowadays, the state subsidy is not geographically limited, distributed photovoltaic state subsidy: the residual power online mode is 0.42 yuan / degree, subsidies for 20 years. Specific to the local power supply bureau to release the price shall prevail.
Home PV power plant owners are subsidized by the state’s renewable power development fund, and transferred by the power grid enterprises. In order to this subsidy revenue from the grid to the owner, in general, the local grid in the acceptance of grid connection, will sign a grid connection agreement with the owner, will take note of the owner’s bank card number, the subsidy will be issued to the bank card on a regular basis, generally monthly or quarterly, the detailed distribution time will be slightly different from region to region.
The above is the installation of photovoltaic power plants need to invest how much money, how about the introduction of revenue, general single family installation of distributed photovoltaic systems are based on their own needs and roof area to select the installed capacity, the general selection of the installation of 3-10 kilowatts or so, the price is about 20-70,000 yuan, depending on the roof structure and construction difficulties to calculate.