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What is the installation cost of the 5KW PV system? / 2017/5/26 15:24:37

The cost of home photovoltaic power generation systems depends on three factors:
Equipment cost.
Equipment costs, that is, photovoltaic panels and inverters. Different manufacturers have different prices, but the PV market is very transparent. The same quality doesn't make much difference unless he's a liar. At present, the market upstream two kinds of prices: one is 5~6 yuan per watt; the other is 8~10 yuan per watt (the former does not include installation costs, the latter includes installation costs). PV modules account for about 50% of the overall price, and inverters and other components are distributed around 10%.
Installed capacity.
How do you calculate the capacity of your home?
Xiao Bian introduced a popular science article before. The main two points: monthly power consumption and installation area. According to the current actual electricity consumption situation, we need to judge how many kilowatts of PV plants need to be installed, so that the economy is relatively economical. You can also build a slightly larger power station, so that you can sell the power to the country with enough electricity.
How do I know how much capacity I need?
It depends on the size of your home area and the amount of electricity you use every month.
Flat roof: 70 watt / square meter
Sloping roof: 80 W / m2
Lift a chestnut: if your roof is flat, about 80 square meters, then you can install: 80*70=5.6KW
Then you can install 5KW power generation system, the price is probably around 40 thousand, if not installed at around 30 thousand.
If your home is only 30~40 flat, then you can install 3KW power generation system, excluding installation is 15 thousand ~1.8 million; package installation is 24 thousand ~3 million
Subsidy policy.
In August 26, 2013, the national development and Reform Commission decided that the state level subsidy for distributed PV generation was 0.42 yuan / kWh (pre tax), with a period of 20 years. In addition, there are local subsidies, provinces, regions, subsidies are not the same, this needs to consult the local policy.
The benefits of home photovoltaic power generation include three parts:
1, subsidies to make money: state subsidies 0.42 yuan / degrees + provincial subsidies + city and county subsidies (slightly different from each other), whether it is used or sold, as long as the electricity is subsidized.
2, save electricity: power generation for their own use, do not pay the electricity bill, is tantamount to making money.
3, selling electricity to make money: use of electricity sold to the country, selling electricity prices in accordance with the local coal-fired desulfurization unit benchmark price of 0.56 yuan / degree. Electricity prices vary slightly.
There are two options for accessing the power grid:
Spontaneous self - use, the remaining power on the Internet (priority of their own use, sold to the state surplus)
All access to the Internet (all sold to the state)
Family photovoltaic power generation generally choose second kinds, that is, spontaneous use of personal electricity, access to the internet. In this way, batteries are not needed, and electricity can be used directly in the evening when electricity can not be generated.



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