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2 results about "Solar Energy Generating Systems" patented technology
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Solar Energy Generating Systems (SEGS) in California, with the combined capacity from three separate locations at 354 megawatts (MW, 474,700 hp), is now the world's second largest solar thermal energy generating facility, after the commissioning of the even larger Ivanpah facility in 2014. It consists of nine solar power plants in California's Mojave Desert, where insolation is among the best available in the United States. SEGS I–II (44 MW) are located at Daggett (34°51′45″N 116°49′45″W), SEGS III–VII (150 MW) are installed at Kramer Junction (35°00′43″N 117°33′32″W), and SEGS VIII–IX (160 MW) are placed at Harper Lake (35°01′55″N 117°20′50″W). NextEra Energy Resources operates and partially owns the plants located at Kramer Junction. On January 26, 2018, the SEGS VIII and IX at Harper Lake were sold to renewable energy company Terra-Gen, LLC. A tenth plant (SEGS X, 80 MW) had been in construction and SEGS XI and SEGS XII had been planned by Luz Industries, but the developer filed for bankruptcy in 1992, because it was unable to secure construction financing.
A power supply system and method combining solar power generation and gravity energy storage
ActiveCN121308039BImprove stabilityreduce shockElectrical storage systemMachines/enginesControl cellSolar power
This invention discloses a combined solar power generation and gravity energy storage power supply system and method. The power supply system includes a solar power generation system, a gravity energy storage system, and an intelligent control system. The intelligent control system presets a power generation threshold and dynamically controls the gravity energy storage system to store or release energy based on the difference between the real-time solar power generation and the threshold, thus stabilizing the combined output power. The gravity energy storage unit adopts a symmetrical double-sloped support tower and a dual energy storage structure design, achieving bidirectional conversion between electrical energy and gravitational potential energy through a clutch mechanism. The intelligent control unit dynamically adjusts the floating threshold based on predicted wind speed and historical power fluctuation rate, improving the system's adaptability to different wind fields. The coordinated control of power generation and energy storage solves the intermittency problem of wind power generation, reduces the amplitude of output power fluctuations, and the bidirectional energy conversion mechanism can achieve peak shaving and valley filling, releasing energy to supply power during peak electricity demand and storing energy during off-peak times, improving the overall energy efficiency of the power grid and avoiding energy waste.
Owner:BEIJING YINGDONG DATA TECH CO LTD
Energy management system and its control method
To provide an energy management system that can properly initiate hot water storage operation. [Solution] An energy management system that manages the exchange of power between a solar power generation system, an HP-type water heater, and other equipment comprises a first detection unit that detects the amount of power generated by the solar power generation system, a second detection unit that detects the amount of power consumed by the other equipment, and an operation planning unit for the HP-type water heater. When performing hot water storage operation during daytime hours, the operation planning unit determines whether to start hot water storage operation of the HP-type water heater if the difference between the amount of power generated by the solar power generation system and the amount of power consumed by the other equipment is greater than the amount of power consumed when the HP-type water heater is operating at its minimum capacity. In this case, the operation planning unit determines whether to start hot water storage operation of the HP-type water heater during daytime hours by predicting that the amount of power generated is 0 or increasing based on the rate of change in the amount of power generated, and predicting that the amount of power consumed by the other equipment is 0 or decreasing based on the rate of change in the amount of power consumed by the other equipment.
Owner:HITACHI GLOBAL LIFE SOLUTIONS INC