On south-facing roof installation of photovoltaic power station for photovoltaic power generation investment items

1, the available area first determines how many available roof area, because the available area directly determines the installed capacity of the pv system. Generally speaking, the cottage roof 10 square can install 1 kw photovoltaic power station, 10 square can install 1 tile roof installation.

1。 Available area is first of all, determine how many usable roof area, because the available area determine photovoltaic system capacity. In general, 1 kw photovoltaic power station can be installed in the bungalow on the roof of 10 square metre, about 1. 3 kw can be installed in 10 square meters of the tile roof, required to pass through professional design. Among them, the average daily 1 kw power of about 4 degrees ( The northwest region as much as 5 ~ 7 degrees) 。 2. Installed capacity installed capacity is closely related to the grid connection and roof area. If the user to use more power, and want to install a larger capacity, they need a bigger roof area and a 'spontaneous self-use and remaining power grid connection mode. Installed capacity, of course, also related to the investment amount. The user can install the proper capacity according to their plan. 3. Occluded objects hide the impact on the solar photovoltaic power generation system is critical, including the structure of the shade and tall trees around the building block. Shielding can cause hot effect of solar panels, which not only affects the overall power generation, still can cause fatal damage to the panels. 4. Waterproof roof waterproof condition depends on whether there is a very good waterproof layer. If building without a good waterproof system, it may not be able to meet the use function of roof in its life cycle. 5. The basic requirement of roofing waterproof anti-corrosion must first determine whether the type of metal roof can be installed. Corrosion protection is to pay attention to the anti-corrosion effect of anticorrosion coating of metal roofing. 6. Bearing photovoltaic power plants should be built on the roof. If the roof bearing capacity can't meet the requirements of photovoltaic building, construction of the project will not be.