Battery storage (BESS) integration
SAJ CHS2 under smart control
The SAJ CHS2 series brings three-phase hybrid storage for commercial sites, from 30 to 63 kW. Voltmasters EMS turns it into an earning asset: market-driven charging and discharging, peak shaving and self-consumption optimisation.
SAJ
Supported devices
- CHS2-29.9K-T4-X
- CHS2-30K-T4-X
- CHS2-40K-T5-X
- CHS2-49.9K-T6-X
- CHS2-50K-T6-X
- CHS2-63K-T6-X
The CHS2 series from 29.9 kW to 63 kW: T4-X, T5-X and T6-X variants. A different SAJ configuration? Just ask us.
What the EMS gets out of your SAJ installation
- Trade on the imbalance market and dynamic prices, quarter hour by quarter hour
- Peak shaving: keep peak power and capacity tariff under control
- Maximise self-consumption together with PV and EV chargers
- Fluvius telecontrol and grid compliance, certification included
- Real-time monitoring with automatic incident detection
Why installers combine SAJ and Voltmasters
SAJ delivers a broad range of CHS2 inverters, Voltmasters adds the intelligence. The EMS aligns the battery with the market, the PV and the consumption and guards the grid connection. The Voltmaster Controller runs the optimisation locally, even without internet.
How it works
How your SAJ connects to the EMS
Voltmaster Controller in the cabinet
The industrial DIN-rail controller sits next to the installation and runs the optimisation locally, even without internet.
Connect over the local network
You connect the device following the step-by-step guide in our documentation. We assist with commissioning on your first project.
Configure and go live
The installation appears in the platform: dashboards, control and monitoring are active right away.
Other batteries we control
All integrations →FAQ
Questions about the SAJ integration
Which SAJ systems does Voltmasters support?
The CHS2 series: CHS2-29.9K-T4-X, CHS2-30K-T4-X, CHS2-40K-T5-X, CHS2-49.9K-T6-X, CHS2-50K-T6-X and CHS2-63K-T6-X.
What can the EMS do with a SAJ battery?
Market-driven charging and discharging, peak shaving, self-consumption and grid compliance, controlled from a single platform.
Does the system keep working when the internet drops?
Yes. The Voltmaster Controller runs the optimisation locally in the cabinet. If the connection drops, control, peak shaving and the safety limits simply stay active.
How do I connect a SAJ system to the EMS?
The Voltmaster Controller connects to the device over the local network. The step-by-step instructions are in our documentation, and as a certified partner we guide your first commissioning from start to finish.
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.