FoxESS and Axle Partner to Boost Battery Earnings

January 6, 2026

Karl Bach
Co-founder @ Axle
Archy de Berker
Co-founder @ Axle

FoxESS and Axle Energy partner to help customers earn more from their batteries

FoxESS, the UK’s leading provider of residential energy storage solutions, has partnered with Axle Energy to bring cutting-edge energy market expertise to FoxESS users. This partnership combines FoxESS’s high-quality hardware with Axle Energy’s deep integration into UK energy markets, allowing customers to earn cash by helping the grid regardless of their energy supplier or tariff.

Axle Energy operate the UK’s largest independent Virtual Power Plant (VPP), aggregating hundreds of thousands of distributed assets to provide flexibility to the grid in times of strain. FoxESS batteries are can now play their part, exporting energy when the grid is strained and soaking up excess renewables which would otherwise be wasted. Users benefit from full automation and are paid for the grid services they provide (£1/kWh and £10/month minimum until March 2026).

FoxESS and Axle Energy are also working closely with installers of FoxESS systems to help them demonstrate the additional value that the VPP can bring to users. Installers also benefit from a referral scheme, receiving £50 for each customer referred (sign up here!)

“We are excited to work with Axle Energy to offer Fox ESS customers a pathway to VPP participation and new value streams. By combining Fox ESS’s robust energy storage and inverter technologies with Axle’s VPP and asset optimisation capabilities, we’re accelerating the energy transition and helping customers unlock the full potential of their assets.” - Craig Woollaston, Technical & Product Director for Fox ESS UK

FoxESS users can sign up to earn £1/kWh this winter here.

About Axle Energy

Axle Energy is a UK-based technology company specializing in energy flexibility software. By connecting residential energy assets such as EV chargers, home batteries, and heat pumps to flexibility markets, Axle helps homeowners and businesses save on bills, earn from electricity markets, and support the grid.

About FoxESS

Fox ESS is a global leader in the renewable energy sector, specializing in advanced inverter and energy storage solutions. Trusted by homeowners, installers, and distributors across the UK and beyond, FoxESS is committed to providing innovative, high-quality products that support the transition to clean, sustainable energy.

Partnerships