For utilities, neo-retailers and energy scaleups

Use gridX’s white-label HEMS to save your customers
€1,500 DE£1,700 UK€1,275 NL€1,500 DE
per year

Our home energy management system (HEMS) orchestrates a home’s photovoltaic system, battery, heat pump and electric vehicle charging on one platform. Roll out quickly and scale easily, without added complexity for your team.

Isometric illustration of a house with solar panels, battery, heat pump and an EV charging in the driveway, connected to a pylon, with a yellow XENON badge floating above. The most advanced Home Energy Management System (HEMS)

Used by leaders in the energy space

HEMS value stacking

Choose the offering that fits your strategy

A blue downward-pointing chevron arrow, identical in shape to the keyboard_arrow_down icon used elsewhere on the site

Stack the four value bundles into real end-customer savings

1. Everything starts with Connect
2. Up to {{kpi:hems-control-value}}/year with Control
3. Up to {{kpi:hems-optimize-value}}/year with Optimize
4. Up to {{kpi:hems-flex-value}}/year with Flex

A blue downward-pointing chevron arrow, identical in shape to the keyboard_arrow_down icon used elsewhere on the site

More value means lower churn

With the full white-label package, you can deliver ~{{kpi:hems-stack-value-de}} in annual savings to every end user in Germany. Give them a tangible reason to stay rather than switching to a supplier with a seemingly cheaper price.

A blue rocket launch icon with a flame trail

Scale new revenue streams fast

Turn dynamic tariffs and asset flexibility into recurring, high-margin revenue, while gridX handles the rest. Gain instant connectivity to {{kpi:supported-oems}} OEMs, then add bundles as you scale across European markets.

The HEMS value stack

That’s how the HEMS value stack works

{{kpi:hems-control-value}} in end-customer savings
Control
{{kpi:hems-optimize-value}} in end-customer savings
Optimize
{{kpi:hems-flex-value}} in end-customer savings
Flex
A gridBox by gridX
Two clouds, teal and yellow, connected by a line, representing gridX's cloud connectivity

Connect Platform

A white card with the text API in gridX's teal color
A laptop screen showing a gridX dashboard with data panels
XENON for HEMS

Keep your clients happy and unlock new revenue

Build your HEMS with Europe’s leading white-label provider.

{{kpi:hems-stack-value-de}}

annual end user savings in Germany

{{kpi:connected-assets}}

connected assets

Your choice

Our white-label HEMS value bundles.

Integrate the layers you need into your own product to individualize your offering and own your differentiation.

Isometric illustration of a house with solar panels, battery and EV charging, connected by teal lines to a crossed-out cloud icon on the left and a gridX gateway (gridBox) device on the right

Connect via cloud or gateway

The foundation: Connect to {{kpi:supported-oems}} OEMs and {{kpi:supported-devices}} devices. Start simply with cloud-only or white-label the gridBox. Leverage our Installer Hub, End User App and Operator Dashboard to strengthen every link in the chain.

Isometric illustration of a house with solar panels, battery and EV charging; a small gateway device and a laptop showing a legal paragraph symbol on the left, and a pylon with directional arrows on the right

Control

All the basics you need: fuse protection, self-consumption optimization and automatic regulatory compliance (like Germany’s 14a EnWG or the UK’s G100). Deliver up to ~{{kpi:hems-control-value}} 🇩🇪 in yearly savings per end customer.

Isometric illustration of a house with solar panels, battery and EV charging, a laptop showing a rising cost chart with a euro symbol on the left, and three people at a round consultation kiosk on the right

Optimize

Turn dynamic markets into money: optimize according to dynamic tariffs and grid fees and shift consumption to the cheapest hours. Deliver up to ~{{kpi:hems-optimize-value}} 🇩🇪 in annual savings per end user.

Isometric illustration of a house with solar panels, a battery, a heat pump and an EV charging in the driveway, enclosed in a teal grid, flanked by two pylons and a hexagon icon with a desk and chair above

Flex

gridX turns batteries or EVs into a pooled, tradable flexibility resource that opens up explicit flexibility revenue streams for you, while adding up to ~{{kpi:hems-flex-value}} 🇩🇪 in annual value per end user.

Who benefits from our HEMS?

Energy retailers

European utilities and neo-retailers looking to unlock new revenue streams and offer their end customers more value.

“With Slim Laden, we offer our customers a simple and attractive way to reduce charging costs while contributing to a smarter energy system. Thanks to the XENON platform, we were able to roll out smart EV charging to thousands of customers in a very short time.”

Thijs van der Meulen
Product Manager

Energy scaleups

Large installers or scale-ups wanting to quickly roll out all-in-one smart energy solutions in homes without the complexity.

“With the evm+ Energy Pilot, we are creating an attractive, future-oriented solution for our customers. At the same time, we are laying the foundation for a virtual power plant — delivering benefits for our customers, our grid and the regional energy transition.”

Portrait of Christoph Hesse of Greenblocks, seated on a couch with a bookshelf in the background. greenblocks testimonial on gridX HEMS enabling prosumer energy independence through automated energy management and regulatory compliance
Christoph Hesse
Member of the Board, evm
gridX professional services

Optimize your HEMS business case and go-to-market strategy

gridX experts shape the right strategy for your dynamic tariff and flexibility pricing model and help you get it to the market faster.

A blue icon of an upward arrow above a jagged mountain-range shape

GTM strategy & value proposition

Skip the mistakes others already made. We act as your guide from day one, sharpening your value proposition and helping you reach scale in approximately half the time.

A blue icon of interlocking gear and cog shapes

Technical enablement

gridX doesn’t stop at the hardware. Our enablement team reduces risk by overcoming roadblocks before they affect operations and provides the resources to internalize new solutions into daily business.

A blue icon of two people connected by exchange arrows

Access to our ecosystem

Gain instant access to a proven partner network of manufacturers, direct marketers, metering system providers – key stakeholders, who are familiar with gridX’s solution and are ready to help you scale.

”gridX‘s Professional Services were a great help to us – especially in the beginning when we first started in energy management – because it helped us get into the topic. I would recommend the Professional Services to any industry player who wants to get started quickly.“
Dr. Claudia Häpp
Senior VP Category Management

Frequently asked questions

We're worried about differentiating if we use a white-label HEMS platform.

XENON is designed as a foundation, not a ceiling. The gridX API gives you full access to build or bring your own front-end experience, custom logic, or branded workflows. Building awhite-label HEMSon XENON means you own the customer relationship while we handle the complexity underneath.

Isn't it cheaper to build a HEMS in-house?

Building in-house may seem cost-effective upfront, but the hidden costs add up quickly – regulatory compliance across EU markets, connectivity to {{kpi:supported-devices}} device OEMs, ongoing OTA updates, and {{kpi:uptime-measured}} uptime are all non-trivial to maintain. Partners who started in-house have consistently found XENON faster to market, cheaper at scale by avoiding switching providers when new trends or regulations emerge, and easier to differentiate on top of.

How does your pricing work?

Our pricing consists of three components – the platform, the number of assets connected and which value bundles they use, and, if used, the local gateway. The more you scale, the cheaper the price. Chat to our team about your requirements and scaling plans to get a clearer pricing overview for more transparency.

Platform fee: 
This is a recurring subscription for connecting to the XENON platform and includes all connectivity, dashboards and apps, customer support and data analytics and control.

Asset fee: 
An asset is each individual connected, controllable device — inverter, battery, heat pump or EV charger. The asset fee is dependent on the bundles used: Control, Optimize and/or Flex, reflecting the functionality and value unlocked for each asset.

gridBox fee (not applicable to cloud connectivity):
Price per edge gateway – one per household. We'll model your HEMS fleet and device mix before you commit, so the number you see is the number you pay.

We're already exploring an in-house solution. Why switch now?

Many of our partners started the same way. The inflection point is typically scale and future-proofness: once you're managing hundreds of sites across multiple regulatory regimes, the maintenance burden overwhelms product development, particularly when you want to add solutions like explicit flexibility services. XENON lets your team focus on growing your business while we handle the infrastructure layer.

Still have questions?

Chat to an expert today

Download the flexiblity report

Discover how demand side flexibility and new energy regulations unlock savings, boost grid stability and drive the energy transition in Europe.