How to easily estimate the domestic photovoltaic power capacity?

Transformer capacity and the way of the Internet affect your home photovoltaic power station * factor is, the size of your home is located at the next higher level for the capacity of transformer. State grid has a regulation, that is distributed photovoltaic power station installation capacity of no more than in the transformer capacity at the next higher level

transformer capacity and scale of Internet connection mode affect the photovoltaic power station * factor is the capacity of transformer at the next higher level. The state grid, the installed capacity of distributed photovoltaic power station shall not exceed 25% of the transformer capacity at the next higher level. Suppose your transformer capacity is 400 kva, according to the regulation, your home can install photovoltaic power station * capacity is 100 kw. This is a complete access to the Internet ( Sell all power is sent to the grid) 。 If your family choose 'surplus electricity to get to the Internet for personal use and for private use' mode, things are more complicated. If your home can be fully absorbed power, in theory, there is no capacity limitation. In fact, the ideal situation is rare. The limit capacity depends on 'soc' except for electricity. Obviously, the surplus power is a dynamic value, change with time. In this case, the free measurement and power in the hands of the national grid of specific executive. This right is very big. Neighbor's installed a photovoltaic power station in addition to the capacity of transformer, and your neighbor's photovoltaic power station may also affect your capacity of photovoltaic power station. Accurately, neighbors, and you use the same transformer. This is because the transformer can be installed capacity of 25% is not any proprietary, but by all users sharing the same transformer. Therefore, it is a first come first serve. If you start is late, you have no chance. Unscreened roof area if you're lucky, transformer has enough capacity, the neighbors will not take it. Then, another limit your installation capacity factor is your installation site, this is the very effective barrier-free roof area. Effective area refers to the weight to withstand photovoltaic power station without the roof of the shelter. According to the general calculation, need the roof area of 10 square metre per kilowatt power station. Specific number can only be sure after field investigation. Your economic strength decided to household appliances station capacity of one factor is how much money you have. Or are you going to spend how many money to build solar power plants? Photovoltaic power station has the advantage that it can be big or small. As long as connected to the power grid more than 3 kw. The above four reason basically is the main factor decided to household appliances station installed capacity. However, your home appliances station installed capacity is determined by four factors, in particular, the four factors of small installed capacity. How to estimate the capacity of photovoltaic power station easily? Solar power system is divided into off-grid power generation system, grid generation system and the distributed generation system, the distributed power generation system, also known as distributed generation and distributed power supply, refers to the user scene or near configuration smaller photovoltaic power generation and power supply system, photovoltaic power generation device to meet the needs of specific users, photovoltaic power generation device support for economic operation of the existing distribution network, and at the same time meet the requirements of both. Installation of photovoltaic power generation in rural areas need how many money? Distributed photovoltaic power generation system of the basic equipment includes photovoltaic module, photovoltaic phalanx, DC female head, DC distribution cabinets, grid inverter, ac distribution cabinets, such as equipment, as well as the power supply system monitoring device and environmental monitoring device. Its operation mode is in the case of solar radiation, photovoltaic power generation system of solar cell module array converts solar energy into electrical energy output, and through the DC female box will be sent to the DC power distribution cabinets, electrical energy grid inverter will reverse into alternating current electricity supply load of the building itself, through the grid to adjust power excessive or insufficient.