Unlock The Full Value of
Co-Located Batteries
Solve grid constraints. Cut energy costs.
Transform your EV charging site from a cost center into a multi-revenue energy asset —
with intelligent, vendor-agnostic control and proven ROI.
Challenges
From Connected to Profitable
Most CPOs today have already made the move - or are about to - to deploy on-site battery storage. But connecting and running a co-located BESS efficiently is rarely straightforward. Two challenges stand between a battery on paper and a profitable, compliant system in operation.
Connecting & Controlling
Integrate your BESS without losing control. Every charger, battery, and grid interface speaks a different technical language. To co-locate a BESS, you need a system that bridges them all - without vendor lock-in.
Optimising
Make the numbers work. Even once connected, a battery used for only one purpose - whether peak shaving, boosting, or arbitrage - rarely delivers the ROI to justify the investment. The real value comes from combining multiple use cases and market opportunities.
Let’s change that
The Solution
Connect & control any BESS
Thanks to a state-of-the-art architecture and abstraction layer that
we have developed, you can easily connect & control any BESS
brands of your choice.
Improve the ROI with Value Stacking
Once your BESS is connected and under control, the real optimisation begins. Thanks to the HARMON-E platform, every kilowatt can serve more than one purpose - maximising both operational and financial performance. We call it Value Stacking.
Value Stacking means combining multiple use cases so your co-located BESS creates value every hour of the day - not just during charging peaks.
Instead of running a battery in isolation, HARMON-E orchestrates it dynamically across all available opportunities:
DNO Curtailment
Automatically adjust site consumption when requested by the grid operator, ensuring compliance and grid-friendly operation
BESS-based Peak Shaving
Limit grid draw during high-demand moments to avoid costly power fees.
Tariff Arbitrage:
Charge when prices are low, discharge when prices spike.
Flexibility & Ancillary Markets
Earn additional revenues by supporting grid stability (FCR, FFR, aFRR, etc.).
Each use case contributes part of the business case — but together, they unlock the full return on investment.
Features
Optimising co-located batteries
BESS-based Peak shaving
Reduce your grid draw during high-demand periods and avoid costly power fees. Our intelligent control discharges the battery precisely when site load exceeds your grid limit, maintaining stability and cutting operational costs - without compromising charging performance or user experience.
Arbitrage
Set a schedule for the BESS, including desired SOC at time of day, and periods of discharge to cope with demand.
Data points on 24h ahead electricity prices and historical load profiles are available to enable data driven decision making.
Flexibility & Ancillary Services
Turn your co-located BESS into an active grid asset. When not powering your site, the system supports the grid through frequency response and curtailment programs — unlocking new revenue streams while maintaining full operational control and compliance with market and DNO requirements. Profit from flexibility, effortlessly.
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“More and more, we encounter the problems of setting up a site because of grid capacity. An energy management system helps us provide the best quality possible to our customers by dynamically distributing energy across our chargers”
Geert de Mil
EV CPO Charging Technology, Systems and Insights Manager, Q8
Benefits
Make it Work. Make it Profitable. Stay Independent.
Co-located BESS is only as smart as the system that controls it. FLEXECHARGE brings together the intelligence, interoperability, and operational control to make your investment pay off from day one.
Stay Independent: Scale Without Lock-In
One platform for all your assets - batteries, chargers, solar, and future energy sources.Keep freedom of choice for hardware, partners, and markets.
Future-proof integration with upcoming BSPs and flexibility services.
Make it Work: Seamless Integration & Compliance
Connect any BESS and charger brand through our vendor-agnostic control layer.
Ensure DNO compliance (VDE, local grid codes) and safe, coordinated dispatch.
Full visibility of energy flows - from chargers to battery to grid.
Make it Profitable: Optimise Every Kilowatt
Combine Peak Shaving, Boosting, Arbitrage, DNO Curtailment, and Flexibility Markets in one control logic.
Automatically prioritise the most valuable use case in real time.
Proven ROI from 5–7 years for co-located sites.
Your infrastructure shouldn’t limit your business model. FLEXECHARGE gives you the control to grow - across technologies, partners, and markets.
Leverage the full value of co-located BESS
Join this masterclass to learn how co-located BESS can both solve grid constaints, cut costs & generate new revenues
