Firmware Release Notes
Commercial Storage
Firmware Versions:
SolarEdge CSS-OD CR2.2S & CR197C
SolarEdge ONE Controller for C&I v1.6.23
Release Date: May 2026
This release bundles the following firmware versions for the CSS-OD and ONE Controller for C&I products:
- CSS-OD 102: vCR2.2S with ONE Controller v1.6.23
- CSS-OD 197: vCR197C with ONE Controller v1.6.23
Several new features are included in this release, designed to improve battery commissioning, performance and functionality.
New Features and Enhancements
CSS-OD:
- CSS-OD batteries now support Modbus protocol, meeting national regulations in several countries, primarily in Italy
- Mixed CSS-OD deployments are now supported, enabling installation of both CSS-OD 102 and CSS-OD 197 systems within the same site
ONE Controller for C&I:
All CSS-OD models are now supported by the ONE Controller i.e. CSS-OD 90, 102, 107 and 197.
Note: Not every CSS-OD model is available in all countries. Contact your local SolarEdge salesperson for more information on CSS-OD battery availability.
Firmware Versions:
SolarEdge CSS-OD vCR2.2Q
ONE Controller for C&I v1.5.1-2
Release Date: December 2025
This release bundles firmware versions for the CSS-OD 102.4 (On Grid) configuration and ONE Controller for C&I, and contains several new features for improved battery commissioning, performance and functionality.
New Features and Enhancements
SolarEdge CSS-OD vCR2.2Q (On grid)
| Feature name | Feature Description | Region |
|---|---|---|
Grid Code Parameters
| All SolarEdge CSS-OD supported countries are now configured with the correct grid code parameters by default. This ensures compliance with local regulations and improves system stability and performance across different regions. | All
|
| Remote Software Upgrade Capability | After initial CSS-OD installation, the CSS-OD software can now be upgraded remotely. This enhancement reduces the need for on-site visits, saving time and operational costs while enabling faster deployment of new features and updates. | All |
ONE Controller for C&I v1.5.1-2 (features related to CSS-OD on-grid functionality only)
| Feature name | Feature Description | Region |
|---|---|---|
| Enhanced EMS functionality |
| All
|
| CSS-OD commissioning enabled via SolarEdge Go |
| All |
| Improved data handling for large CSS-OD sites | The CSS-OD system now processes and manages data more efficiently, enabling accurate monitoring and reporting for large-scale installations without performance degradation. | All |
Upgrades will be carried out gradually, either remotely or on-site as needed, with scheduling to ensure a smooth transition.
