Phase 1 of Varco‘s Sizing John Battery Energy Storage System (BESS) in Liverpool has reached full operational status. This significant milestone marks the project’s official commencement of service. The system is now actively contributing to the region’s energy infrastructure.

Project Details
The Sizing John BESS project is a key development by Varco. This initial phase operates from its Liverpool location. The system represents an important addition to the UK’s energy storage capabilities.
Operational Duration
Sizing John Phase 1 distinguishes itself with an impressive operational duration. It can discharge energy for 2.4 hours. This capacity positions it among the longest-duration operational battery projects across the United Kingdom. Such extended discharge times offer considerable benefits to grid stability.
Battery Energy Storage Systems Explained
Battery Energy Storage Systems, or BESS, play a crucial role in modern electricity grids. They store excess energy generated from various sources. These systems then release the stored power during peak demand periods or when renewable generation is low. BESS technology enhances grid reliability and supports the integration of intermittent renewable energy sources.
Importance of Duration
The duration of a BESS refers to how long it can continuously supply power. A longer duration, like Sizing John’s 2.4 hours, allows for greater flexibility. It enables the system to provide sustained support to the grid. This capability is particularly valuable for balancing supply and demand over longer periods. It also helps manage grid fluctuations more effectively.




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