Gravity + Advanced Storage is a mechanical energy storage technology that uses the principle of lifting heavy masses during periods when electricity prices are low and then allowing these masses to drop, converting potential energy back into electrical power.
This technology addresses the challenge of storing large amounts of energy for long durations without the chemical degradation issues common in battery technologies. It provides a sustainable solution for grid-scale storage that can help balance supply and demand more effectively.
The system consists of motors that lift weights or fluid columns using excess renewable energy or off-peak grid electricity. When needed, the stored gravitational potential energy is released, driving a generator connected to the same motor, which now acts as a turbine to produce electricity with minimal efficiency loss over time.
The manufacturing process involves designing, fabricating, and integrating mechanical components such as motors, pulleys, counterweights, and generators. The materials used are typically robust and durable to withstand the repeated lifting and dropping cycles over many years.
The construction begins with site preparation for anchoring the storage units securely. Motors and other machinery are installed, followed by the setup of a system to lift and lower the weights or fluid columns. Electrical connections and control systems are then integrated to manage energy flow during charging and discharging cycles.
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