Aachen, Germany, April 2, 2026. gridX, a pioneer in regulatory compliance in the UK, is currently the only pure energy management provider that offers a G100-2-compliant local (home) energy management gateway, the ‘gridBox’, which allows both import and export across residential use cases and import for commercial electrical vehicle (EV) charging. This enables gridX to expand its presence in the UK, empowering homeowners and CPOs to save money, use a variety of asset manufacturers (OEMs) and comply with strict grid requirements. G100 is an engineering standard set by the Energy Networks Association that sets limitations on how much electricity photovoltaic (PV) systems, EVs and other distributed energy resources may export from or import into the UK’s low-voltage grid to ensure its stability.
Households contribute to grid stability and reap financial benefits
A smart home energy management system (HEMS) connects PV systems, home batteries, heat pumps, wallboxes and smart meters from different OEMs into a single, interoperable system and intelligently manages a household’s generation, storage and consumption. gridX’s G100-compliant HEMS allows households to increase their self-consumption rate and lower costs by optimizing their electricity usage based on dynamic tariffs, while also adhering to import and export limitations. G100 compliance is also the basis for a household to actively participate in energy flexibility services, which enable the aggregation of residential flexibility for trading. Such programs allow households and energy retailers to earn money but they must operate within the limitations set by G100.
Lower costs and compliance at charging parks despite increasing demand
G100-compliant energy management is also crucial at charging parks for EVs. Unlike in the residential sector, the gridBox is currently only approved for G100-compliant grid import and thus unidirectional charging. gridX’s energy management system (EMS) allows CPOs to dynamically manage loads and thus install more charge points on existing infrastructure, automatically charge EVs during low price periods and shave demand peaks to minimize grid fees. The solution also enables the integration of storage and PV systems so that consumption can exceed physical grid constraints. On top of these use cases, G100 compliance allows CPOs to minimize their operating costs, while guaranteeing that EV chargers never exceed the G100 cap.
To be able to offer additional forms of flexibility and bidirectional charging in the future, gridX is also working on obtaining an export permit for the gateway.
Installers benefit from the increased scope of requirements
The introduction of G100 has meant British installers now bear greater regulatory responsibility and are subject to stricter documentation and compliance requirements.
A G100-compliant (H)EMS helps installers reduce this complexity by lowering planning effort and standardizing processes, while also reducing their liability risk by ensuring compliance with import and export limits. It also makes installers and homeowners are free to choose multiple devices from an array of OEMs – and retrofit existing energy assets with new ones – with the peace of mind that they will remain compliant even with larger loads. According to gridX calculations, at the end of 2025 the UK had around 3.2 million homes with at least one energy asset that would be suitable for retrofitting, opening up a large revenue pool for installers and energy providers who install compliant hardware.
A G100-compliant EMS at charging parks enables faster infrastructure scaling, by expediting approval processes, streamlining documentation and billing services, and ensuring grid operators’ requirements are automatically met.
Marcel Müller, Vice President of Technology, says: “Removing complexity is the key to a successful energy transition. Meanwhile, more and more regulatory requirements like G100 are introduced in the energy and e-mobility sectors. The rollout of our agile energy management system in the UK, which not only ensures compliance of multiple asset types from various OEMs but also enables additional flexibility value streams to unlock new revenue streams, brings us another step closer to our goal of establishing gridX as Europe’s leading platform for connectivity and flexibility of decentralized energy resources.”
Editorial notes
The list of all G100-compliant local (H)EMS gateways is available on the Energy Networks Association website: https://connect-direct.energynetworks.org/device-databases/search-gen?category_id=5&device_type_id=13&compliance_status_id=Compliant
The calculation of the retrofitting potential is based on the following sources: (1) The MCS Data Dashboard, (2) SMMT, (3) UK Government Statistics, (4) Zapmap, (5) interviews with partners and business customers as well as (6) data from LCP Delta consultancy.
gridX is Europe's leading smart energy company based in Aachen and Munich. With its modular EMS XENON, gridX enables manufacturer-independent optimization and management of distributed energy resources. With XENON, partners can build, scale and adapt energy management solutions faster and more efficiently than ever before, always meeting evolving market demands. E-mobility partners can install more and higher power charge points at sites without the need for costly grid extensions. Partners in home energy management minimize costs and complexity by offering end customers holistic smart energy management built for the future.
.svg){kind=icon}
.svg){kind=icon}
