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35-38 Photovoltaic Application Development

Author: Source: Datetime: 2016-12-26 09:47:56
Photovoltaic power generation to large-scale use and development as the main alternative energy, but also to further reduce the system cost, improve efficiency. At present, China has reached 10 yuan per watt peak system cost below the cost of electricity 0.6 to 0.8 yuan, the solar cell manufacturing cycle of energy recovery 1 to 2 years, close to the goal of parity Internet access. Figure 2-10 shows the cost of crystalline silicon PV system. Figure 2-11 shows the comparison between PV and conventional generation. It can be estimated that 2016 will be the same as conventional power generation.

Strictly speaking, the factors affecting the on-grid electricity price include local solar energy resources, system efficiency and power generation, reliability, grid quality, initial investment scale, operation and maintenance cost, loan proportion interest rate, tax and profit level and other conditions. The local solar energy resources, system efficiency and the initial investment scale are the main factors that affect the electricity price.

Figure 2-10 Cost estimation of crystalline silicon PV systems

Cost estimation of crystalline silicon PV systems
Figure 2-11 Comparison of PV and conventional generation

Comparison of PV and conventional generation
For the PV grid-connected power generation system, it can be divided into power generation side and user side. To achieve power generation side of the Internet, that is, for power generation enterprises, it is necessary to close with the regular electricity price, the current price 0.33-0.36 yuan / (kWh), and to achieve the user side of the Internet, power generation enterprises as long as 0.5-1.4 / (kWh ) Can be. Therefore, for our country, by 2015, photovoltaic electricity prices fell to 1 yuan / (kWh) the following, will take the lead in the realization of photovoltaic power users side of the "parity Internet." By 2020, photovoltaic electricity prices are expected to decline to 0.6 yuan / / (kWh) or so, you can achieve the photovoltaic power generation side of the "parity Internet."

China's average grid-connected electricity price in 2009 was 0.34 yuan / kWh, when researcher Wang Shicheng predicted that if the benchmark price of PV power tariff in China was 1.5 yuan / kWh, it would be reduced by 8% The grid electricity price rose 6% per year to calculate, by 2015, China's photovoltaic power generation installed cost of about 1 million / kWp, the price in the 1 yuan / (kWh) below the installed cost by 2020 yuan / kWp, PV To reach 0.6 to 0.8 yuan / (kWh) of the target.

In recent years, worldwide, the production of pure silicon crystalline silicon polysilicon material prices, from October 2008 of 365.8 US dollars / kg in March 2012 to 33,6 US dollars / kg. As the oversupply situation will continue, polysilicon prices will slow down. Decreased material prices, direct solar cell components prices from October 2008 of 3,55 US dollars / Wp, down to December 2009 of 1.78 US dollars / Wp. In 2010, China's solar cell manufacturers in the 1.55-1.7 US dollars / Wp between. Since the beginning of 2013, the price has dropped to 0.7 US dollars / Wp or so. This is in the domestic solar cells and modules production capacity reached 300GW, the cost dropped to 0.6 US dollars / Wp below the rapid expansion of domestic and international application market, the inevitable result.

August 12, 2011, by the National Development and Reform Commission Energy Research Institute, China Renewable Energy Entrepreneurs Club and the Beijing University of Education Foundation co-chaired the "China PV power parity road map" (hereinafter referred to as "road map") and in Peking University Education Foundation co-chaired the "China PV power parity circuit diagram" (hereinafter referred to as "road map") and officially released in Beijing. The "road map" predicts that by 2015 some areas of our country can achieve parity at the user's Internet. The "road map" also photovoltaic power generation system of the electricity price, the basic scenario and advanced scenarios of the two estimates. Based on the average development level of the industry, the basic scenario can be reduced to 1 yuan / (kWh) in 2015, down to 0.8 yuan / kWh by 2020; advanced scenario is based on the advanced enterprise development level, in 2015 0.8 yuan / kWh ), In 2020 to 0.6 yuan / (kWh). By 2030, both the basic scenario and advanced scenarios, can be 0.6 yuan / (kWh). Therefore, the "road map" also pointed out that by 2015 some areas of China can achieve parity on the user side of the Internet by 2020, most parts of the country can achieve the power side of the parity of the Internet, by 2030 can all achieve the generation side Of the Internet parity. Figure 2-12 shows the PV grid-line roadmap. Figure 2-13, Figure 2-14 are the development goals and roadmap of China PV market.

Photovoltaic power generation has reached the

Figure 2-12 Photovoltaic power generation has reached the "parity online" circuit diagram

solar pv installed capacity












Year installed capacity / GW











Cumulative installed capacity/GW











Figure 2-13 China PV market development target (2011-2020)

PV market development target (2011-2020)






basic target of the photoelectricity installed capacity / 100 million kilowatts





Photoelectric installed capacity to engage the target / 100 million kilowatts





High-goal implementation requires smart grid and energy storage device

Figure 2-14 China PV market development roadmap

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