Alternative energy sources have the downside of being impermanent; for example, solar panels will only produce electricity during daytime hours, while peak consumption occurs in the evening. Accumulating devices based on Li-ion batteries with a 12-year service life are used to address this issue. The cost of installing such devices more than doubles the cost of a power plant. Sub hydro, a Norwegian firm, suggested the first practical non-standard approach. They consider using the world's ocean as a form of energy storage.
Engineers from California's ARES (Advanced Rail Energy Storage) implemented a proposal to address the issue of energy storage from alternate sources of periodic operation. They suggested using electric locomotives on rails as energy storage devices. Heavy cars are towed to the mountain and accumulated produced power during power generation (sunshine) and when demand for electricity is poor (potential). When the sun sets or the market for electricity rises, the carriages roll down and produce steam (electric motors are set to generators). The productivity of the ARES system is 86 percent, and the job will last up to eight hours.
According to William Peytzke, director of ARES, their system is similar to rechargeable battery systems, but it has a significant advantage: the capacity to be synchronized with the mains.
Since the method does not rely on water for production, it can be used in areas where water is a concern, such as California.
The machine, according to the company's engineers, is scalable and can accumulate 200 MW*h (e.g., WPP around 100 MW) to 24 GW * h.
The company's long-term ambitions include constructing a 12.5 MW * h facility in Nevada. A railroad with a slope of about 6.5 percent and an 8-kilometer length is expected. To put systems in place, 17 engagers are required, including two locomotives (220 tons) and two wagons with concrete blocks (150 tons). Each carriage can store up to 1.5 megawatts of electricity.
Haselwimmer, Kurt
What a stupid idea – it takes up a lot of space, takes a long time to start, and it can't change its power delivery rate quickly because, guess what, it has a lot of mass. Why are so many people trying to jump on the energy bandwagon? Because there is a need, but that doesn't mean that every crazy solution should be tried.
George is a man with many talents.
The gravity battery works in a similar fashion, storing excess energy produced by solar panels for long periods of time before delivering it when required.
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