Off-grid photovoltaic power generation system price general how much money

There is a big difference between off-grid photovoltaic power generation system and grid-connected system. In terms of design, off-grid photovoltaic power generation system involves a lot of problems, such as photovoltaic panel power selection, inverter selection, controller selection, energy storage battery capacity determination and so on. These designs are linked, if part of the design is not good, then the whole system may not be used. I have seen some friends on the Internet to share their own assembly of off-grid photovoltaic power generation system, here I first need to tell you is, if there is a grid at home, do not install off-grid, if you want to invest, do not install off-grid, you must be clear before installing off-grid, because off-grid is to solve the problem of electricity demand, the cost per kilowatt hour of electricity is much higher than the grid. There is no investment price. If there is no electricity in your local area, the difficulty and cost of connecting to the grid are high, then you can consider using off-grid photovoltaic power generation system.

If a farm in Guangxi, because there is no electricity, so the head of the household plans to install the off-grid solar power supply system for power supply, all the load power in the pastoral area is 7 kW, and the work is 5 hours a day, then we can first simple preliminary design the following plan:

Photovoltaic module: adopts monocrystal silicon photovoltaic panel, the installed capacity is expected to be 25kw, generating 90-100 KWH electricity every day

Reverse control all-in-one: 25KW (including controller and inverter)

Energy storage battery: 100 ° electrocolloidal battery

Continuous cloudy and rainy days: 3 days

Other accessories: support, optical voltages and so on

Product warranty: 1 year

Solar power supply system price: about CNY200,000

Of course, this is just a preliminary design, specific photovoltaic modules to use how many watts, how to use how many pieces, how to arrange, how to design battery and so on if we want our professional engineers to design for you, after all, Xiaobian is not a technical staff, can only simply calculate the parameters of each part of the solar power supply system, as for if the system is more reasonable, It costs less, so you have to leave it to the professionals.