energylifting
Energylifting is a class of energy storage and delivery systems that store electrical energy by raising a substantial mass against gravity and release energy through controlled lowering. The approach is categorized as gravity-based energy storage and is studied as a complement to chemical batteries and other storage technologies.
Its primary mechanism involves using electricity to operate a lifting device (such as a crane, winch, or
Common implementations range from modular block systems to whole-building or tower-scale installations. Masses may consist of
Round-trip efficiency and capital costs vary with design but can compete with other long-duration storage options
Concepts of gravity-based storage date to earlier mechanical and pumped-storage technologies, with recent demonstrations by commercial
Future directions include optimizing materials, improving control algorithms, and reducing land and maintenance costs to enable