Axle Energy API and VPP

Axle Energy Limited is a UK-registered platform company that connects electric vehicles, home batteries and heat pumps to energy markets through a single API. Its stated mission is to decarbonise the grid by replacing fossil-fuel balancing with flexible resources. The site lists UK, France and Netherlands versions.

Carmakers, charger and battery makers and utilities register an asset and enrol it in a flexibility market through one API call, using hosted or React components for consent, address and smart-charging flows. Axle optimises each asset for the flexibility value it can sell, then shares market revenue with users through its payment rails. The site reports 300k live devices and 2 GW of shiftable load.

• Axle API: connects EVs, batteries, heat pumps and chargers to energy markets.
• One-call enrolment: registers an asset and enrols it in a flex market with one idempotent call.
• Hosted and React components: ready-made consent, address and smart-charging flows.
• Optimisation: schedules each asset for the flexibility value it can sell.
• Payment rails: shares market revenue with device owners.
• VPP for homeowners: consumer-facing virtual power plant offering.

EV and charger makers in Vietnam exploring grid-service revenue for their fleets and chargers. Battery and inverter vendors adding VPP participation to home and commercial storage. Utilities designing time-of-use and managed-charging programmes.

Lets OEMs add grid-flexibility revenue to devices without building market access. A single API call registers an asset and enrols it in a flex market. Demand shifts without changing the outcome for users, such as warm homes or charged cars. The site reports API uptime above 99.9 percent.

Millions of EVs, batteries and heat pumps are becoming controllable grid assets, and device makers want an easy way to monetise them. Vietnam's fast-growing EV and rooftop solar base suggests similar API-first aggregation could matter once local flexibility markets open.

UK-registered company (Axle Energy Limited, company no. 14633671); co-founders Karl Bach and Archy de Berker. $25m Series A led by Energize Capital with Accel, Picus Capital and Eka, announced 8 July 2026 on the company blog. Logos include Monta, Pod Point, myenergi, Easee, Solax, Deye and SolarEdge.