If it is a small power plant and adomestic photovoltaic plant, including equipment, it is 4 to 6 yuan/w in the southern region, and excluding equipment, it is 0.8 -1 yuan/week. If it is a large power plant with a capacity of 1Mw or more, the color steel tile roof is 2.5-2.8 yuan/w and the cement roof is 2.8 to 3 yuan/w.
Photovoltaic power plants are mainly photovoltaic power generation systems, including various types of buildings and power plants, including inspection, maintenance, housing and other auxiliary facilities. When a photon irradiates a metal, all of its energy can be absorbed by an electron in the metal. The energy absorbed by the electron is large enough to overcome the internal gravity of the metal to do work, escape from the metal surface and become. photoelectrons.
Principleipaux power components of photovoltaic power plants:
The selection of the main power components of the inverter power supply is very important. Currently, the most commonly used power components include Darlington power transistors. , power field effect transistors, insulated gate transistors and shutdown thyristors, etc., the most commonly used device in small capacity low voltage systems is MOSFET, because MOSFET has a voltage drop at l lower on-state and higher switching frequency.
IGBT modules are generally used in high voltage and large capacity systems. This is because the on-resistance of the MOSFET increases as the voltage increases, and the IGBT occupies a larger share in medium-capacity systems. Advantages, and in very large capacity systems, GTO is generally used as a componentt power.
For the above content, refer to Baidu Encyclopedia - Photovoltaic Power Plant
A 33 megawatt photovoltaic power generation panel requires 39,600 000 foundation piles. One megawatt requires approximately 1,200,000 foundation piles. A photovoltaic power generation panel of approximately 10,000 watts requires 1,000 to 1,200 foundation piles. Thus, one megawatt requires 1,200,000 foundation piles. With over 800 million watts of photovoltaic power generation, the number of foundation piles required can be reduced by approximately 20%. One megawatt requires approximately 1.2 million foundation piles, and 33 megawatts of photovoltaic power generation panels require 39.6 million foundation piles.