The hottest solar power plant in the world can rea

2022-08-12
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Editor's note: one of the world's largest solar power plants, the passel plant, operated by the PowerLight company in Berkeley, California, is one of the largest solar power plants in the world. Its highest level: at noon on a sunny day, the power generation capacity of the solar park can reach 11 megawatts, enough to power 8000 households

SELPA is sunny, similar to central California. However, even after the plastic and wood powder are mixed in a certain proportion, the factory can still produce in rainy days. The sensor station monitors the weather and the position of the sun, and controls the angle of the solar panel group

the SELPA plant has 52000 panels covering 90 acres, which can accommodate nearly four million solar cells (black squares)

MIT's technology business review said on October 10 that last winter, one of the world's largest solar power plants was put into operation on the sunshine ranch in the southern Portuguese town of Serpa. The plant is owned by General Electric Company and operated by PowerLight company in Berkeley, California

at its highest level, at noon on a sunny day. The power generation capacity of the solar park can reach 11 megawatts, enough to supply power to 8000 households

the SELPA plant has 52000 panels covering 90 acres, which can accommodate nearly four million solar cells (black squares). Howard Weng, executive vice president of PowerLight, said that building such a large solar park can provide economies of scale: it is cheaper than installing the same number of solar cells on the roofs of smaller factories or individual enterprises and families

this factory, which spent $75million from general electric company when necessary, is expected to turn losses into profits at the same time that the scope of losses of the paper enterprise has also been expanded. All public utilities in Portugal must purchase electricity from factories, and the federal subsidy is a few cents per kilowatt

if the utility department supplying power to the user purchases solar power, the user will find that the cost of his electricity bill has increased by less than 0.1%. Wenger predicts that the plant will produce 21340 megawatt hours of electricity every year, reducing the carbon dioxide emissions in the region by 13000 tons in the same period

SELPA is sunny, similar to central California. But even in stormy days, the factory can still produce. The sensor station monitors the weather and the position of the sun, and controls the angle of the solar panel group. Wenger of PowerLight compares rows of battery panels to blades on soft shutters: the battery panels are attached with long metal rods with engine thrust to adjust the angle during the day. In the morning, the battery panel turns to the east to absorb sunlight; When the sunlight is strongest, the battery panel is parallel to the ground; When the sun sets, the panel turns West

the distance between the battery panel and the ground is high enough to allow sheep to graze below. SELPA solar energy park can also be used as a livestock farm

the final stage of the construction of the solar park includes: checking the tilt angle of the panel under the control of the inclinometer (lower right), and testing the maximum output power of the panel. Below is a graph of the current and voltage generated by a series of battery panels. It tells technicians like Doug felmann how much of the sunlight absorbed by solar cells is converted into electricity

the plant is designed to operate unattended. Rain occasionally washes the battery panels. PowerLight and General Electric will monitor the output of the battery pack through interconnection; PowerLight will send technicians to carry out necessary maintenance and regular maintenance once a year

this year, PowerLight is building a larger factory near Las Vegas. (source of this article/Photography of MIT Technology Business Review/written by Anthony Louis Campos/Katherine paulzac)

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