Supernova Power is a UK focused flexible power platform created by InfraVia in March 2026 via the merger of Mercia Power Response and Balance Power.

Mercia Power Response is a leading provider of flexible power response services to the UK grid and specialises in developing, constructing and operating flexible gas peaking plants and battery storage assets. Mercia currently operates a portfolio of 262MW gas peaking and battery storage sites and has a development portfolio of over 400MW of battery storage sites.

Balance Power is a leading developer of battery storage sites in the UK. The founder-owned company has delivered 39 projects since inception across different energy technologies. Balance currently has a pipeline of over 1.4GW of battery storage assets across the UK.

With the support of InfraVia as a majority shareholder, Supernova Power will be scaled to provide a suite of capabilities across development, construction, operations, energy management, and financing, allowing for the accelerated build-out of the existing portfolio of battery storage sites and further acquisitions across flexible power technologies.

This investment is aligned with InfraVia’s strategy of supporting the energy transition by enabling the acceleration of renewable energy deployment in the UK. Supernova Power will help address the challenges facing intermittent renewable energy generation, in particular offshore wind, by aligning renewables production with demand and providing firm backup capacity for periods of low energy generation.