What should be considered before the installation of solar photovoltaic power station?

If your home is the building and house property right card is complete, can be directly carry id card, hu kou book, house property card original and photocopy, submit a grid application to power grid companies. Issued by the grid interconnection access plan, you can buy photovoltaic (pv)

if your house is built, and the complete property right card, you can directly carry id, booklet of registered residence and property right card to the original and copy of the power grid companies to submit online application. Released in power grid interconnection, can buy and install photovoltaic power station. If your home is a city residential area, due to the collective all residential roof belongs to the owner, it is necessary to communicate with all except the property owners, with approval of their signature and then with relevant certificates submit an application for interconnection to the grid company. If your home is a villa, you need to communicate with the property. This property may not agree with the installation, because it does not know the photovoltaic power station, and worried about damage to the whole beautiful villa. However, with the property of communication and reasonable explanation, general property will agree to install. In many cities such as Shanghai, villa roof installation already step by step. Another point you need to pay special attention to is, if you belong to highly self-managing villa villa, photovoltaic power station may only be installed for private use, unable to connect to the national grid. Is it possible to idle roof installation of photovoltaic power station? On the roof installation of photovoltaic power station need to consider the bearing capacity and the surrounding conditions of the building. Will use more than 25 years after the completion of the photovoltaic power station, it is necessary to ensure that the service life of the building roof more than 25 years, and with the corresponding carrying capacity. In addition, can not be ignored in the construction of the photovoltaic power station of shading problem is the problem. If the house have a parapet or installed solar water heater, or objects near a tree, bar and so on, these objects must avoid the shadow of the position, the need to consider the object in the shadow. Photovoltaic power station before installation need scientific measurement and design, not empty idle position. A small shadow will greatly reduce the photovoltaic power station. Don't be greedy. Photovoltaic power station need to invest? Profits? How long does it take to back to this? According to the current market price of photovoltaic power station, installation of a 5 kw ( Area of about 50 square meters) Photovoltaic power system will cost about 40000 yuan to 50000 yuan. Seems a little high initial investment. However, at present the country to give per KWH 0 to the household photovoltaic power generation project. 37 yuan subsidy. In some areas, subsidies and initial installation and local kilowatt hour, shorten the return period of the photovoltaic power station. A 5 kw photovoltaic power plant can produce about 5400 ~ 9100 degrees of electricity every year. If all is a man of electricity utilization calculated at 50 cents per KWH commercial electricity electricity, plus per KWH 0. 37 yuan state subsidies, can save users from 4698 to 7917 yuan a year, and in 6 - 10 years to recover the cost. The expiration of the photovoltaic power station is how many years? How many years can it use? In the late of the high cost of maintenance? Photovoltaic power generation system is the core of photovoltaic modules. At present, most companies have 10 years of product warranty, warranty and 25 years of linear power supply 25 years of less than 80% of the rated power) 。 In addition, the brand's pv overall system will provide five years warranty for the whole system.