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Let your customer's battery earn on the energy markets

A battery that only optimises self-consumption leaves most of its earning potential on the table. The platform connects directly with energy suppliers and trading partners, enabling dynamic control of batteries, solar, charging infrastructure and steerable consumers based on real-time market signals.

DAY-AHEAD MARKET PRICE EPEX SPOT CHEAP HOURS PEAK HOURS 0h 12h 24h Control now Standby Charging at low prices Discharging at peak Battery Savings for your customer

Arbitrage on dynamic prices

The EMS checks day-ahead market prices and automatically schedules the battery per quarter-hour: charging in cheap slots (PV surplus or cheap grid), discharging in expensive slots. The battery shifts energy from the cheap, sunny afternoon to the expensive evening peak, and your customer avoids expensive grid purchases.

  • Plan is updated every 15 minutes based on prices, PV forecast and consumption
  • Only cycles when the price spread justifies the round-trip losses (configurable, typically €20/MWh)
  • Solar curtailment at negative injection prices

Imbalance market via trading partners

Automated participation in flexibility markets: the trading partner sends dispatch signals that give the battery precise charge and discharge commands. Partner signals take priority over the standard algorithms but always stay within the project limits and safety margins of the grid contract.

  • Secure connection via MQTT (certificate-based) or REST API (API key)
  • Live imbalance prices and per-device activation status in the Pro dashboard
  • Full alignment with local market rules and supplier communication protocols

Buy low, sell high, automatically

One day on the day-ahead market. The EMS charges the battery in the cheap midday dip and discharges it again during the expensive evening peak.

€€€ Price Cheap dip Evening peak Battery ↓ Battery charges ↑ Battery discharges 00:00 06:00 12:00 18:00 24:00
Day-ahead price Battery charges Battery discharges

Built for the imbalance and balancing markets

The EMS takes a decision every second for every device, taking each device's response speed into account. With a reaction time of 1 to 3 seconds you capture real-time price spreads and reserve activations, while slower systems are still computing. Market rules and reserve products differ per country, the link with your trading partner stays the same.

aFRR

Automatic Frequency Restoration Reserve

mFRR

Manual Frequency Restoration Reserve

FCR / R1

Frequency Containment Reserve

Yellow Voltmasters battery container being prepared for balancing services

See what that looks like in the field:

Frequently asked questions about energy trading

What is the difference between day-ahead arbitrage and the imbalance market?

Day-ahead arbitrage works with prices that are known a day in advance: the EMS plans per quarter hour when the battery charges and discharges. The imbalance market works in real time, your trading partner sends dispatch signals and the battery responds within 1 to 3 seconds. Both can run on the same battery.

Do I need a trading partner to get started?

Not for arbitrage on day-ahead prices: the EMS optimises against the market prices and your customer's energy contract. You do need one to take part in the imbalance and balancing markets, because access to those markets runs through an aggregator or supplier. The partners we connect with today are listed on this page.

How often is the battery plan recalculated?

Every quarter hour. The EMS combines the day-ahead prices, the PV forecast and the expected consumption into a new plan. If prices or the installation change, the updated plan applies immediately.

What if cycling the battery is not profitable?

Then the battery does not cycle. A configurable threshold applies, typically 20 euro per MWh, which covers the round-trip losses. The price difference between charging and discharging has to exceed that threshold before the EMS uses the battery.

Are grid limits respected during market participation?

Yes. Dispatch signals from your trading partner take precedence over the standard algorithms, but always stay within the project limits and the safety margins of the grid contract. Load balancing and telecontrol remain overriding, including during an activation.

Looking for the technical details and step-by-step configuration? You will find them in our documentation.

Read the documentation 

Ready to make your first project pay off?

Tell us about your next installation. We will show you the platform, help you build the business case and guide you from first quote to certification.