How to ensure the quality of the roof solar power?

How to safeguard their roof solar power quality? More and more people want to give their idle roof installed a photovoltaic power station, but if you want to give oneself to install photovoltaic power station, a few questions, you need to note: if your home is the building, and

how to ensure that the quality of the roof solar power? More and more people want to be in idle installed on the roof of the photovoltaic power station, but if you want to install photovoltaic power station, you need to pay attention to these questions: 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. Warm reminder: another point you need to pay special attention to is, if you belong to highly self-managing villa villa, photovoltaic power station may be installed for private use only, not connected to the national grid. Is it possible to idle roof installation of photovoltaic power station? Rooftop solar power installation need to consider the bearing capacity and the surrounding conditions of the building. 1. To build a photovoltaic power station need more than 25 years of time, so it is necessary to ensure the service life of the building roof over 25 years and have corresponding carrying capacity. 2. Can not be ignored in the construction of the photovoltaic power station of shading problem is the problem. If the house on the parapet, or installed solar water heater, or near a tree, and other objects, these objects shadow position must be avoided. This annual shadow objects need to be considered. 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, and initial installation power subsidies, subsidies and this greatly shorten the payback period of 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?