Plessey behind the meter battery

The Plessey Behind-the-Meter (BTM) Battery Energy Storage System (BESS) performs two primary roles. Firstly, it provides the industrial landlord (Plessey Semiconductors) with the ability to ‘flex’ its energy consumption, avoiding peak demand periods and reducing overall consumption costs. Secondly, it generates revenues from providing ancillary services to the grid, increasing grid stability which, in turn, removes barriers to deployment of further renewable generation and reduces curtailment of existing renewable generation.

The Plessey BESS

The Plessey 2MW/2MWh BESS consists of Tesla Powerpacks (battery cells), inverters, transformer, metering and associated switch gear, cabling and cooling system installed behind-the-meter (BTM) on site at Plessey Semiconductors, Plymouth.

Plessey BESS Purpose

The BESS provides on-site energy flexibility allowing the industrial landlord to benefit from TRIAD avoidance, DUoS (grid charges) and energy arbitrage savings (over £300k in savings to date). Alongside the benefits to the landlord, the BESS generates revenues through the delivery of ancillary services to National Grid. Ancillary services are required to ensure the continued stability of the grid and avoid power outages.

Benefits Delivered

As the grid decarbonises and the proportion of renewable generation increases, grid stability services are becoming increasingly important. Therefore, through the provision of ancillary services, the Plessey BESS is helping to remove barriers to the deployment of further renewable generation and reducing the curtailment of existing renewable generation.

• Expansion of Energy Transition Investments 
• Meets Multiple Sustainability Development Targets