Further Beyond 4 Hours: Revisiting Long-Duration Storage
Key findings include
- Long-duration storage is now commonly viewed as having a delivery time of at least four hours, and the need for it is growing.
- Renewable energy self-consumption is seen as the most promising application for long-duration storage. But many other applications, from backup power to short-term operating reserves, were also cited, highlighting the potential for revenue stacking.
- The most promising technology for long-duration storage is flow batteries and the key criterion for selecting a given asset is cost, particularly the level of capital expenditure required.