"Today, I do not worry about the electricity bill!" Three o'clock yesterday afternoon, standing in front of their own, the youngster the Guan Ping facing Xiaoshan Power Supply Bureau staff said with a smile. The neighbors also come with a smile quipped, "said the old boy henceforth tariff collection, Zhibu Ding we pay part of the electricity bill will be delivered to your hands.
residents rooftop home solar panels power
station, "the official grid. As Hangzhou ,
the first residents of "early adopters", Tong Guan Ping laughed and
said he probably even Hangzhou Xiaoshan first electricity bill no longer
worried about the general population. Hangzhou Xiaoshan xintang street under Hangzhou ,
the Tong Guan Ping's own three-story residential is located here. The third
floor of the house there is only one attic, empty a large open-air balcony.
Tong Guan Ping electrical origin long before wondering to build a rooftop solar
power station on the balcony, but there is a problem let him wavering - battery
cost is too high. Liu Village
Rely on solar photovoltaic power generation, night and rainy climate change electricity can almost be ignored. This means that the Tong Guan Ping was accompanied by a set of batteries, sunny electricity and store it away for the night or rainy weather. "Otherwise, in the evening but also with the electrical grid, installed do not install no difference."
To collect electricity for their own use, the battery less have to spend two or three million, and two or three years for a new, so the cost of inputs Tong Guan Ping prohibitive.
Until March of this year, Tong Guan Ping see on the news that the national grid and network services for distributed photovoltaic news, before re-germination of the idea to build a rooftop solar controller power station. Today, the the the Tong Guan Ping's open-air balcony has built a sun roof, sun roof, tempered glass, cloth
30 a total area of about 50
square meters of amorphous silicon photovoltaic panels
The working principle is not complicated: these photovoltaic panels absorb heat, direct current generated by the wires of the 30 multi-layered defense summary to the combiner box on the balcony. Converted to daily use 220 volts AC, then the DC side of the inverter combiner box. The current through the wire from the combiner box to the inverter from the inverter is connected to the power line of the whole house.