Rural installation of photovoltaic, how to calculate income? I'll tell you!
+ Time
：2017-08-15 08:59:45
For the investment of this topic have their own words! Investors are thinking about how they can earn more money by investing, and the investee is thinking about how to attract investment. Rural construction of photovoltaic power generation as a gust of wind, all around the installation of the tide, it was the photovoltaic power generation as a stable investment is not compensated, it was photovoltaic power generation as an energy-saving environmental initiatives, some regional governments also photovoltaic Power generation is seen as an important means of poverty alleviation.
So many people and institutions are optimistic about photovoltaic power generation, then the photovoltaic power generation in the end how the return of investment?
First of all, we look at what models of photovoltaic power generation?
Mode 1: all spontaneous use. Popular understanding is the user's photovoltaic system power generation all their own consumption. Used for off-grid systems.
Mode 2: spontaneous use, the remaining electricity online. The user's photovoltaic system power generation first use their own, the excess power, sold to the grid. This model is the current application of more widely accepted by the user model, but also around the main push mode.
Mode 3: all online. The photovoltaic power generation system is sold to the grid. This model earlier, more and more, now gradually reduced.
Next look at each model investment income situation how? Speaking of photovoltaic power generation revenue is mainly three parts.
First, policy subsidies. The current state subsidies 0.42 yuan / degree, subsidies for 20 years, and some provinces and cities there are local subsidies, such as Zhejiang, Guangdong and other places have local subsidies.
Second, electricity income. PV system power generation, every month can save a certain amount of electricity, for the angle is also income.
Third, selling electricity income. Users with endless electricity sold to the country, selling electricity prices in accordance with the local coal desulfurization unit benchmarking price.
According to the above three different access grid model, the revenue calculation method is as follows:
All spontaneous use of the total income: (local electricity subsidies) X all power generation;
Self-use, the total income of the Internet: the amount of self-use electricity X local electricity price of electricity X selling price subsidies X all power generation;
All Internet total revenue: (subsidy selling price) X all power generation.
Here we take Jiangsu, for example, the installation capacity of 5kW system, occupying the roof area of about 50 to 70 level, according to the current 8 yuan per watt to count, need a one-time investment of 40,000 yuan, Jiangsu annual average according to 4 hours to count every day Can generate electricity 20 degrees, the local desulfurization price of 0.528 yuan.
Calculation of power generation in the first year = 1495 * 0.8 * 5 = 5969kW • h;
Spontaneous use = (0.3 0.42 0.528) * 2500 = 3121 yuan;
Extra power on the Internet = (0.3 0.42 0.37) * 3469 = 3364 yuan;
Total income = self-made surplus Internet access = 3121 3364 = 6485 yuan. Then the expected 6-7 years time can be back to this.
