family installation, the advantage is not very big. Factory installation has greater advantages.
1. At the same cost, photovoltaic power generation is free. So, if the household electricity bill is 0.6 yuan per kilowatt hour and the factory electricity bill is 1 yuan per kilowatt hour, then for the factory, the electricity bill will be saved even more.
2. Factories generally use electricity during the day, and photovoltaic power generation happens to be used during the day, and the consumption rate is relatively high. Households generally use less electricity during the day as they go out to work, and use more electricity when they return home at night, but no electricity is generated at night, so consumption is relatively low.
3. We install it in factories, and usually they can pay back their money in 2.3 years. For individual home installations, it usually takes more than 6.7 years to pay back the cost.
If you have a lot of money and no place to invest, it is not a big problem to install a photovoltaic at home. Moreover, the current shelf life of photovoltaic modules is generally more than 25 years, and the inverter also has a shelf life of more than 10 years. If you clean the photovoltaic panels occasionally every year, it won't be a big problem.
For home decoration, there are other benefits:
1. Setting up a shed (if allowed by the local Housing and Urban-Rural Development Bureau) is equivalent to adding an extra space on the roof of the building.
2. Heat insulation. For residents on the top floor, there is an extra layer of heat insulation, so they are less exposed to the sun and less hot in summer.
3. To make money is to sell the electricity generated to the power grid. Although it is not much, it is still money. Compared with investment income, it is a relatively fixed and safe investment income.
