SolarEdge CSS-OD 197

Commercial battery storage system

The CSS-OD 197 is a 197.12 kWh gross, 187.15 kWh usable LFP cabinet for SolarEdge AC-coupled commercial PV sites. One or two 50 kW PCS050 battery inverters set the power configuration; two are capped by the cabinet’s 0.5C limit at 98.5 kW. SolarEdge ONE for C&I manages operation. A country- and firmware-dependent Modbus feature is documented, but no exact read map or third-party endpoint is established here.

SolarEdge CSS-OD 197
  • RS485
  • CAN

Commercial battery storage system

Compatibility

Third-party measurement access unverified

The PCS050 datasheet lists RS-485/CAN ports, and SolarEdge’s May 2026 firmware note says CSS-OD systems gained Modbus for regulatory use in several countries, primarily Italy. Neither source supplies an exact CSS-OD 197 read map, port role, client policy or installed-firmware approval for Edge.

CSS-OU-197 cabinet with one or two PCS050 inverters at an approved AC-coupled SolarEdge PV site. June 2026 DS-000233-ENG and September 2026 CSS-OD 197 firmware CR2.2197I / ONE Controller 1.7.9 are reference revisions, not proof of installed software or national availability. No dispatch or export-control writes.

Models

Download
ModelsInterfaceRoute into Edge
CSS-OU-197 + one PCS050197.12 kWh gross cabinet and one 50 kW battery inverterStorage selection only; confirm national orderability and external data access with SolarEdge.
CSS-OU-197 + two PCS050Same cabinet, two inverter units, 98.5 kW cabinet-limited maximumDo not describe this as two independent 197 kWh cabinets.
CSS-OD 102/107Different cabinets, capacities and firmware streamsDo not transfer their electrical table or register map.

Specifications

Cabinet identity
CSS-OU-197, 11 LFP modules of 17.92 kWh each2
Energy boundary
197.12 kWh total; 187.15 kWh usable at datasheet conditions2
Battery power
0.5C maximum. One or two PCS050 units; two units together are capped at 98.5 kW by the cabinet.2
AC coupling
PCS050 is rated 50 kW, 400/230 V; an AC-coupled SolarEdge PV system is required on site.2
Cabinet environment
IP54, C4 corrosion protection, built-in HVAC; -30 to +50 °C with derating conditions.2
Cabinet size
1300 × 1200 × 2360 mm and 2360 kg; plan lifting, floor load and service access.2
Firmware
September 2026 release pairs CSS-OD 197 CR2.2197I with ONE Controller 1.7.9; upgrades are coordinated with SolarEdge Support.3

Interface

Documented measurements and integration boundaries for CSS-OD 197.

  • The cabinet touchscreen and SolarEdge ONE for C&I expose operational and diagnostic information within the vendor system.
  • PV generation, PCS AC flow, cabinet SOC and site meter measurements have different physical boundaries; do not merge them into a single unnamed energy counter.
  • No addressable CSS-OD 197 measurement list or usable protocol decoder is established by the retained documents.

Assessment

CSS-OU-197 cabinet with one or two PCS050 units, selected-country SolarEdge AC-coupled site; no physical integration claim.

InteroperabilityLimited
Manufacturer-owned ONE Controller and physical PCS communications are documented, but third-party read access and map remain country- and firmware-specific.23
AccuracyNot yet assessed
No published exact CSS-OD 197 third-party measurement map establishes units, accuracy or energy-counter boundaries.
SecuritySupported with conditions
SolarEdge describes ONE Controller as the on-site communications gateway; exact third-party protocol access controls remain to be reviewed.1
ReliabilitySupported with conditions
Cabinet HVAC, multiple fire detections, suppression and electrical safeguards are specified; site auxiliary power and safety design remain installation dependencies.2
RuggednessSupported with conditions
IP54 cabinet, C4 corrosion protection and stated temperature range support indoor/outdoor siting within the installation limits.2
ScalabilitySupported with conditions
One- or two-PCS cabinet configurations and deployment limits are documented; multi-cabinet design needs SolarEdge project approval.2
LifecycleSupported with conditions
A dated datasheet, published firmware history and support-coordinated upgrades are available; country supply and future support remain local decisions.23

Setup

  1. Identify the storage configuration.

    Confirm country availability, CSS-OU-197 cabinet identity, number of PCS050 units, SolarEdge PV equipment and ONE Controller.

  2. Check energy and power separately.

    Size using 187.15 kWh usable energy and the selected 50 kW or cabinet-limited 98.5 kW configuration. Check the auxiliary AC supply for cabinet HVAC and lifting, floor-load and service-access requirements.

  3. Inspect the local monitoring screen.

    On a commissioned cabinet, use Home > Branch Overview to check Total Power, operating state and Total SoC for the battery inverter and its clusters. Record cabinet serial numbers and firmware from Settings > System. These are the screens illustrated in the European Quick Installation Guide version 1.1; do not rerun commissioning or change control mode for a monitoring check.

  4. Trace the existing Ethernet connection.

    The installation guide’s page 25 shows Modbus TCP-LAN from the CSS Local Interface ETH1 through an Ethernet switch to ONE Controller ETH2; ONE Controller ETH1 connects to the site router. View Settings > General > Network to record the existing network configuration. This documents the vendor connection, not a third-party point map; leave the safety and PCS RS-485/CAN links in place.

  5. Compare battery power with its AC meter.

    During an existing charge or discharge, compare the cluster kW readings on the local screen with the meter covering the same battery feeder and interval. Confirm which displayed power is live rather than a configuration rating. Keep the whole-site meter and PV generation separate; preserve power direction, units and timestamps. For automated collection, ask SolarEdge for the supported read interface and point list for this country and system. Keep dispatch with ONE for C&I.

Common questions

Does the 197 kWh nameplate equal usable energy?
No. The June 2026 datasheet gives 197.12 kWh total and 187.15 kWh usable. Use the latter for a bounded storage-energy comparison.2
Does the firmware note make every CSS-OD 197 readable over Modbus?
No. It describes regulatory Modbus support in several countries, primarily Italy. It does not publish an exact register map or prove the installed firmware and port role.3
Can two PCS050 units continuously provide 100 kW from one cabinet?
The cabinet’s maximum C-rate caps their combined power at 98.5 kW in the cited datasheet.2

Sources

  1. CSS-OD 197 UK product page (opens in a new tab) SolarEdge
  2. CSS-OD 197 cabinet and PCS050 datasheet DS-000233-ENG, June 2026 (opens in a new tab) (PDF) SolarEdge
  3. Commercial storage firmware release notes, September 2026 (opens in a new tab) SolarEdge
  4. European CSS-OU-197 / PCS050 Quick Installation Guide, version 1.1 (BayWa public mirror) (opens in a new tab) (PDF) SolarEdge

Further reading

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