A PEDF power distribution system can effectively solve two key problems of zero-carbon transition of power system, namely increasing the installed capacity of distributed renewable energy generation and effectively consuming the fluctuating renewable energy generation. PEDF is the abbreviation of the application of photovoltaics (P), energy storage (E), direct current (D) and flexibility (F) in the building field, which is not just simply combine the above technologies independently, but is organically integrated and constitute a whole to realize “flexible energy use”, i.e. to achieve friendly interaction between buildings and the grid.
The development of a new type of power distribution method for buildings, including photovoltaics (P), energy storage (E), direct current (D) and flexibility (F), is an effective means to suppress grid fluctuations, effectively consume renewable energy, and achieve “carbon neutrality” in buildings.
PHOTOVOTAICS(P)
Distributed photovoltaic power generation, is a key technology for replacing thermal power generation and reducing carbon emissions. It refers to distributed solar photovoltaic power generation facilities in buildings. These facilities can be fixed in the area around the building, on the exterior surface of the building, or become a direct building component. As the cost of PV modules and systems continues to decrease, and PV modules become richer in color, texture, and form of integration with building components, it has now become one of the most prominent ways to utilize renewable energy in buildings, and along with other distributed power generation facilities (such as distributed wind turbines, etc.), becoming an inevitable choice for promoting low-carbon buildings.
Advantages of PEDF
Enhance the efficiency of power utilization and energy efficiency
As we all know, the electricity used in daily life is AC, while the electricity emitted from PV is DC. Commonly, PV buildings are installed with inverters in order to convert DC into AC for daily use. In such a conversion process, power loss is inevitable, and the use of DC power distribution can avoid this problem. At the same time, if the supporting application of energy storage and flexible power system, the building will have 15%-30% regulation ability in electricity consumption, which will be more adaptable to the future high proportion of wind power, photoelectricity and other clean power applications.
