Manufacturer and seller images. Configuration examples may include additional equipment.
Image source: Sungrow ST255CS-2H-US, maker image from Sungrow's own US product page for this model (page title and keywords ST255CS-2H-US); the image is the page's main product image, alt text "PDP B ST255CS-2H-US", showing the single cabinet. Clean product shot.No sellers found.
This figure is printed on the California Energy Commission Solar Equipment List (data unchanged since October 1, 2026) as submitted for the listing. No maker document in the catalog prints it for this model yet.
Listed as "Lithium Iron Phosphate" under "Technology" on the California Energy Commission list (data unchanged since October 1, 2026; downloaded October 11, 2026).
Issuer record: CEC Energy Storage System List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier documentLocation: Energy Storage System list, Row 6496, Technology
Documented
This figure is printed on the California Energy Commission Solar Equipment List (data unchanged since October 1, 2026) as submitted for the listing. No maker document in the catalog prints it for this model yet.
Listed as "257" under "Nameplate Energy Capacity (kWh)" on the California Energy Commission list (data unchanged since October 1, 2026; downloaded October 11, 2026).
Issuer record: CEC Energy Storage System List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier documentLocation: Energy Storage System list, Row 6496, Nameplate Energy Capacity (kWh)
Documented
This figure is printed on the California Energy Commission Solar Equipment List (data unchanged since October 1, 2026) as submitted for the listing. No maker document in the catalog prints it for this model yet.
Listed as "125" under "Maximum Continuous Discharge Rate (kW)" on the California Energy Commission list (data unchanged since October 1, 2026; downloaded October 11, 2026).
Issuer record: CEC Energy Storage System List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier documentLocation: Energy Storage System list, Row 6496, Maximum Continuous Discharge Rate (kW)
Documented
This figure is printed on the California Energy Commission Solar Equipment List (data unchanged since October 1, 2026) as submitted for the listing. No maker document in the catalog prints it for this model yet.
Listed as "480" under "Nominal Voltage (Vac)" on the California Energy Commission list (data unchanged since October 1, 2026; downloaded October 11, 2026).
Issuer record: CEC Energy Storage System List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier documentLocation: Energy Storage System list, Row 6496, Nominal Voltage (Vac)
Documented
Printed DC nominal-voltage range 767 V~934.4 V, preserved as a range. Not a scalar nominal voltage and not relabeled as operating voltage. The separate AC nominal voltage is 480 V. No 819.2 V is calculated from cell count.
Official datasheet: ST255CS-2H-US Datasheet (Version 1) CheckedLocation: ST255CS-2H-US datasheet Version 1, PDF p2, DC side, Nominal voltage range
Documented
2 specs not documented yet: usable energy, dimensionsHelp fill in ›
This figure is printed on the California Energy Commission Solar Equipment List (data unchanged since October 1, 2026) as submitted for the listing. No maker document in the catalog prints it for this model yet.
Listed as "Lithium Iron Phosphate" under "Technology" on the California Energy Commission list (data unchanged since October 1, 2026; downloaded October 11, 2026).
Issuer record: CEC Energy Storage System List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier documentLocation: Energy Storage System list, Row 6496, Technology
Documented
This figure is printed on the California Energy Commission Solar Equipment List (data unchanged since October 1, 2026) as submitted for the listing. No maker document in the catalog prints it for this model yet.
Listed as "257" under "Nameplate Energy Capacity (kWh)" on the California Energy Commission list (data unchanged since October 1, 2026; downloaded October 11, 2026).
Issuer record: CEC Energy Storage System List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier documentLocation: Energy Storage System list, Row 6496, Nameplate Energy Capacity (kWh)
Documented
This figure is printed on the California Energy Commission Solar Equipment List (data unchanged since October 1, 2026) as submitted for the listing. No maker document in the catalog prints it for this model yet.
Listed as "125" under "Maximum Continuous Discharge Rate (kW)" on the California Energy Commission list (data unchanged since October 1, 2026; downloaded October 11, 2026).
Issuer record: CEC Energy Storage System List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier documentLocation: Energy Storage System list, Row 6496, Maximum Continuous Discharge Rate (kW)
Documented
Published claims and calculations are not independently tested lifetime output.
This figure is printed on the California Energy Commission Solar Equipment List (data unchanged since October 1, 2026) as submitted for the listing. No maker document in the catalog prints it for this model yet.
Listed as "480" under "Nominal Voltage (Vac)" on the California Energy Commission list (data unchanged since October 1, 2026; downloaded October 11, 2026).
Issuer record: CEC Energy Storage System List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier documentLocation: Energy Storage System list, Row 6496, Nominal Voltage (Vac)
Documented
Printed DC nominal-voltage range 767 V~934.4 V, preserved as a range. Not a scalar nominal voltage and not relabeled as operating voltage. The separate AC nominal voltage is 480 V. No 819.2 V is calculated from cell count.
Official datasheet: ST255CS-2H-US Datasheet (Version 1) CheckedLocation: ST255CS-2H-US datasheet Version 1, PDF p2, DC side, Nominal voltage range
Documented
Published claims and calculations, not independent test results.
Revision date not established.
Location: Original source record
Retrieved
Sungrow's own document, read for whether the CEC-listed model is one product sold under that model number. The record's figures come from the California Energy Commission list, not from this document.
Official datasheet: ST255CS-2H-US Datasheet (Version 1) CheckedArchived copy of a document published by Sungrow. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what Sungrow published. Original address: https://info-support.sungrowpower.com/application/pdf/2025/06/05/DS_20250416_ST255CS-2H-US_Datasheet_V1_EN.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 2c3d9ebc88634576d83ba24eef5088961c24c92832cd594f9076774b6fd2e1bd
Revision date not established.
Location: Original source record
Retrieved
Sungrow's own product page, read for whether the CEC-listed model is one product sold under that model number. The record's figures come from the California Energy Commission list, not from this document.
Official product page: ST255CS-2H-US PowerStack C&I energy storage system (Sungrow USA product page) CheckedEarlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.
Archived copy captured on 2026-10-11.
Location: Model Number row
Retrieved
Recorded document/effective date: Oct 1, 2026
California Energy Commission Solar Equipment List as downloaded on October 11, 2026 (its data key says updated October 1, 2026). It records that a listed model was submitted with the stated certification, certifying entity and dates; it is a state equipment list, not the certification body's own record, and absence from it says nothing about a product.
Archived copy of a document published by Sungrow. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what Sungrow published. Original address: https://info-support.sungrowpower.com/application/pdf/2025/06/05/DS_20250416_ST255CS-2H-US_Datasheet_V1_EN.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 2c3d9ebc88634576d83ba24eef5088961c24c92832cd594f9076774b6fd2e1bd
No warranty terms on file.
No sellers found.
No seller price history.
No reviews yet
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The Evidence score uses the priorities you choose. It counts published documents, such as certificates and warranty terms, and it compares a documented figure with the best documented figure of the same kind. It does not count owner reviews, and it is not a verdict on product quality or on how many people have reviewed it. A low score can mean little is documented, or that a documented figure is below the best of its kind. Undisclosed data scores 0.
Missing for this product: Certificates evidence needed; Warranty term needed; Warranty energy disclosure evidence needed; Lifetime / capacity evidence needed; Cell model disclosure evidence needed.
Industrial/Commercial ESS · Voltage unconfirmed · Energy unconfirmed · Rated capacity
The warranty term and the lifetime energy are each scored against the best documented value for a home storage battery: a value earns its share of that best, times the weight. A documented value always earns points; an undisclosed one earns 0.
No qualifying figure · 20% weight
Not published. No lifetime-production bonus.
Not documented. Undisclosed data scores 0.
Issuer record: CEC Energy Storage System List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier documentResearch pending, 0 points: Certificates, Warranty term, Warranty energy disclosure, Cell model disclosure.
Computed from public specifications and evidence records. Warranty duration is not service quality; certificate evidence points are not a safety rating. Compatibility and installation limits still apply.
Model ST255CS-2H-US listed on the California Energy Commission Energy Storage System List (data unchanged since October 1, 2026; downloaded October 11, 2026) under Sungrow Power Supply Co., Ltd., as "ST255CS-2H-US", CEC listing date 2025-11-12. This is an equipment listing, not UL certification or complete-system approval.
Models: ST255CS-2H-US
Issuer record: CEC Energy Storage System List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier documentListed on the California Energy Commission Energy Storage System List (data unchanged since October 1, 2026; downloaded October 11, 2026) as Sungrow Power Supply Co., Ltd. "ST255CS-2H-US": UL 9540, certifying entity TUV Rheinland of North America, certificate date 2025-08-27, Ed. 3 : 2025. A state equipment list entry, not the certification body's own record.
Models: ST255CS-2H-US
Issuer record: CEC Energy Storage System List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier documentListed on the California Energy Commission Energy Storage System List (data unchanged since October 1, 2026; downloaded October 11, 2026) as Sungrow Power Supply Co., Ltd. "ST255CS-2H-US": UL 1741 SB, certifying entity CSA Group, certificate date 2025-08-12. A state equipment list entry, not the certification body's own record.
Models: ST255CS-2H-US
Issuer record: CEC Energy Storage System List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier documentNo sourced accessories or replacement parts listed yet.
Manufacturer SKU unknown · US market
Product / system scope unresolved. Model ST255CS-2H-US listed on the California Energy Commission Energy Storage System List (data unchanged since October 1, 2026; downloaded October 11, 2026) under Sungrow Power Supply Co., Ltd., as "ST255CS-2H-US", CEC listing date 2025-11-12. This is an equipment listing, not UL certification or complete-system approval.
Issuer record: CEC Energy Storage System List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier documentProduct / system scope unresolved. Listed on the California Energy Commission Energy Storage System List (data unchanged since October 1, 2026; downloaded October 11, 2026) as Sungrow Power Supply Co., Ltd. "ST255CS-2H-US": UL 9540, certifying entity TUV Rheinland of North America, certificate date 2025-08-27, Ed. 3 : 2025. A state equipment list entry, not the certification body's own record.
Issuer record: CEC Energy Storage System List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier documentProduct / system scope unresolved. Listed on the California Energy Commission Energy Storage System List (data unchanged since October 1, 2026; downloaded October 11, 2026) as Sungrow Power Supply Co., Ltd. "ST255CS-2H-US": UL 1741 SB, certifying entity CSA Group, certificate date 2025-08-12. A state equipment list entry, not the certification body's own record.
Issuer record: CEC Energy Storage System List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier documentNo discussions linked yet. Search DIY Solar Forum
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