
Are you unlocking the full potential of your energy assets?
The energy market is more dynamic than ever. For many of your customers, efficiently managing every installation while keeping budgets under control is becoming increasingly complex. That’s why Stelmo developed a unique and powerful control signal.
KU Leuven R&D Partner
Partners who trust the Stelmo signal
One intelligent control signal for your entire portfolio
Through intelligent on-site energy management, advanced forecasting, and EMS control, we unlock the full potential of large and complex energy assets. The result? Full control, greater independence, and maximum returns.
A win-win for you and your customers.
Whether you manage a single industrial site or thousands of energy assets across the country, the Stelmo signal scales effortlessly to your customers’ ambitions. It’s all powered by our intelligent software. Rather than blindly following a single market trend, our algorithm continuously weighs opportunities across different energy markets in real time. Only when the value is highest does it activate your installations.
Fully automated, real-time control, 24/7
Energy management is continuously optimized based on current market prices and forecasts. Day and night. And because the entire process is automated, there’s no risk of human error.
Live dashboarding and reporting
Managing an extensive customer portfolio? Our user-friendly dashboard makes it easy to keep track of everything and generate clear graphs in no time, giving you the data to back up your promises.
Personal support
Technology is one thing, but how do you convince your customers? Stelmo thinks proactively alongside you. Please feel free to contact your regular point of contact for in-depth engineering support.
End-to-end optimisation in Belgium
Together with our partners across Strado Group, Stelmo unlocks the entire value chain. We bring data, market access, and physical asset control together in one fully integrated solution.
Stelmo + your existing hardware: 1 + 1 = 3
Our own EMS solutions already control more than 50 leading battery and inverter brands. In practice, that number is even higher because we also deliver our control signal to other EMS providers. Don’t see your hardware on the list? We’ll review the technical requirements together and explore how Stelmo can integrate with your existing setup.

Scale your services with the Stelmo control signal
For installers
Deliver more than hardware. With Stelmo, you can offer your customers smart energy solutions that combine intelligent market control with measurable returns.
For VPP integrators
Get more value from your VPP with real-time control and direct access to energy markets. Stelmo helps you build scalable, efficient portfolios.
For EMS providers
Bring real-time market data and forecasting into your EMS. Stelmo adds intelligent energy control without replacing your existing software.
For wholesalers & OEMs
Build Stelmo control into your products and give customers direct access to energy markets. Make your hardware smarter and more profitable.
Our technology, your application
Every portfolio is different and every site is unique. That’s why our technology is modular. You determine the application and we tailor the setup to your operational goals.

Flexible interfaces
Relying on historical or real-time data for control often means acting too late. Using forecasting models developed together with KU Leuven, our software anticipates price fluctuations and peak loads before they happen. The result? Your customers stay one step ahead of the market and significantly reduce their energy costs.
Depending on your portfolio, we connect your assets in one of three ways:
- through a local gateway installed on-site
- through an open API connected to your existing EMS
- through our VPP control, which combines geographically distributed assets and manages them in real time
Stay ahead of the market
The energy market has never been more complex or more unpredictable. Stelmo turns fast-moving market dynamics into clear, actionable insights for your business.

Energy flexibility, the backbone of sustainable energy
Sustainable energy only works when production, consumption and prices are aligned.

From energy markt to asset: how a control signal works
A control signal connects the energy market to the installations on your site. Discover how it works and why the real value lies not in the charge command, but in the data and forecasting behind it.

Video: What is the difference between FCR, aFRR, and mFRR as reserve services
FCR, aFRR, and mFRR serve the same goal but differ significantly in practice. This video explains the differences and helps you choose the reserve service that fits your assets.
Ready to partner with Stelmo?
Tell us more about your installation or portfolio. Based on your specific setup, we can calculate its potential and develop a concrete partnership proposal tailored to your business. No fine print. No inflated simulations. Just transparent figures backed by reliable market data.
Questions we hear a lot (and love to answer)
Between the fast-moving imbalance market, evolving tariff structures, and the technical challenge of integrating different assets, it’s easy to lose sight of the bigger picture. Stelmo helps you make sense of it all. Below are the answers to our most frequently asked questions.
Do I need to switch my BRP to work with Stelmo?
No, absolutely not. Stelmo is completely BRP-independent, so you’re never locked into one specific setup.
A Balance Responsible Party (BRP) is legally responsible for maintaining the energy balance at a grid connection. Many traditional aggregators require customers to switch to their designated BRP structure, which can create unnecessary administrative work and even conflict with existing contracts. Thanks to our flexible software architecture and the broader capabilities of Strado Group, Stelmo works seamlessly with your current BRP or energy supplier of choice.
We already have an EMS. Can Stelmo still add value?
Absolutely. Stelmo doesn’t replace your EMS, it makes it smarter.
A standard Energy Management System monitors and controls local energy flows based on predefined rules (e.g. “Charge the battery when the sun is shining.”). What’s often missing is the real-time link to dynamic imbalance prices. Through our open API, we enrich your existing software with academically validated data flows and highly accurate forecasting. In other words: your EMS keeps doing what it does best, while Stelmo makes sure every control decision is made as cost-effectively as possible.
Does Stelmo support flexibility services such as FCR, aFRR, and mFRR?
Yes. Our universal control signal is designed to meet Elia’s strict response-time requirements.
FCR, aFRR, and mFRR are balancing services used by Belgian grid operator Elia to keep the electricity system stable. Qualifying assets for these markets requires a reliable end-to-end setup and extremely fast response times. As part of Strado Group, we control the full value chain ourselves. That allows our signal to handle both fast-response FCR frequency control and restoration reserves such as aFRR and mFRR with the speed and precision these markets demand.
