Distributed generation usually refers to
the use of distributed resources, smaller capacity, a power generation system
arranged in the neighborhood of the user, it is general access to less than 35
kV or lower voltage level of the grid. Unspecified distributed photovoltaic
power generation using photovoltaic modules, solar energy is directly converted
into electrical energy distributed generation systems.
The most widely distributed photovoltaic
power generation system, photovoltaic power generation project is built on the
roofs of buildings in cities. The type of the project must be connected to the
public grid and supply nearby users together with the public grid. If you do
not support public grid distributed system can not guarantee that the user of
electricity reliability and power quality.
Distributed solar panels for sale photovoltaic power generation
has the following characteristics.
First, the output power is relatively
small. Traditional centralized power plant hundreds of hundreds of thousands of
kilowatts, or even millions of kilowatts, large-scale applications to improve
its economy. The modular design of photovoltaic power generation, and vary in
size and capacity of the PV system can be adjusted according to the
requirements of the venue.
In general, the capacity of a distributed
photovoltaic power generation projects to thousands of kilowatts. Unlike
centralized power stations, has little effect on the size of the power
generation efficiency of photovoltaic power plants, so a very small impact on
its economy, the investment rate of return of the small-scale solar panel price photovoltaic
systems and no more than a large low.
Pollution highlight the environmental
benefits. Distributed photovoltaic power generation projects in the power
generation process, there is no noise, nor will it air and water pollution.
However, we need to focus on the coordinated development of distributed PV and
the surrounding urban environment, in the use of clean energy, to consider the
concerns of the people of the beauty of the urban environment.
The third is to be able to ease the local
power shortage to some extent. Distributed photovoltaic power generation during
the day and highest output, just the people of this time the demand for
electricity.
Distributed solar cell photovoltaic power generation,
however, the energy density is relatively low, only about 100 watts per square
meter of the distributed power of the photovoltaic power generation system,
coupled with the limitations of the building roof area suitable for the
installation of photovoltaic components, distributed photovoltaic power
generation can not fundamentally solve the power shortage problem.
The PV industry overcapacity long conflict.
PV module production in China
since 2007, ranked first in the world for five consecutive years. In 2011, China 's production
of photovoltaic modules is the newly added installed capacity of 10, 90% of the
PV modules need to be sold abroad.
The risk of China 's
photovoltaic industry is heavily dependent on foreign markets in Europe and the
United States
"dual" exposed. To save the PV industry in China , the country this year
continuous introduction of policies to support the development of distributed
photovoltaic power generation. In response to the national policy, the State
Grid Corporation of release distributed photovoltaic power management approach,
and laid a solid foundation to promote the rapid development of distributed
generation.
Distributed photovoltaic power generation
in the past three years to show explosive growth. Implemented in China from 2009
concession tender, promote the the ground large photovoltaic power station
construction. The same year, the start of the "Golden Sun" project
and photovoltaic building demonstration projects given distributed photovoltaic
power generation system subsidies, and in accordance with the size of the
investment scale to determine the amount of subsidies.
The end of 2011, the size of the
photovoltaic building demonstration projects have been announced by the State
approximately 300,000 kilowatts; "Golden Sun" project has been
announced by the size of about 1.17 million kilowatts. The explosive growth of
distributed photovoltaic power generation, but the sound associated with the
planning, design, construction, management and operation of the standard
specification does not cause problems to focus on show.
The plan national publication distributed
photovoltaic power generation to reach 10 million kilowatts in 2015. At the
same time, clearly encouraged in the eastern part of the construction and
building distributed photovoltaic power generation system. Therefore,
distributed photovoltaic power generation is an important future