There are technical difficulties to be overcome
Let the sun gives us room direct “lighting” , how difficulty it is? Reporters learned, first of all, most of the buildings did not take into account the demand of solar panels installed that must make solar panels and building integrated ” in order to promote solar roof performance lighting system.
Shenzhen Yanion associated Chairman Zhou Min told reporters that, under the current conditions of the conversion efficiency of solar panels, building solar rooftop power station is low efficiency, the need take up a lot of building roofs resources, while the city’s buildings roof is very expensive and scarce, it is difficult to provide the construction of power stations to the laying of the space required by the solar panels; economic benefits low roof power station payback period is 40 years or more, while the average of the solar photovoltaic light is only 20 years, so the investment and return are not match.
Zhou take an example, for ordinary residents, most are living in high-rise buildings. With the restrictions of living space. So it is not easy for suitable place to place solar panels. Therefore, lost the place and opportunities in the installation of solar water heaters on the roof to install solar panels; Second, the 10 square meters of panels cost at least $ 56 million, the amount of electricity produced is not enough to meet the whole family needs. Future photovoltaic power generation combined with the building of the “photoelectric building” is the trend of the times, but in the current conditions, city residents use solar performance lighting system, the majority are pushing promotion in the public space.
Hope to further reduce the final cost
“Solar thermal is a strong industry policy,” Liu Xu said, many countries give subsidies for the introduction of solar energy industry, incentives. The reporter was informed that since March 2009, the Chinese government decided to allocate 100 billion yuan a year from the financial subsidies for solar photovoltaic roof and building construction, in order to promote the formation of domestic solar power market.
Solar companies can not rely on the financial support of the Government, and need to explore new business models to meet the user’s needs at the same time does not increase the burden on users, and to guide the led tunnel light market with innovative technology and product demand.