The assessment
How it scores, by category
Efficiency76
Design & Flexibility83
Thermal & Physical Resilience85
Features & Integration57
Safety & Compliance82
Guarantee & Backbone58
Energy Ecosystem46
Market position
17thof 25 in Value & VolumeLower half
627183
The data
Power
12.0kW
Type
String
Peak eff
98.5%
MPPTs
2
Technology architecture
Architecture guide Solar-only string inverter
Converts PV string DC into grid-connected AC.
- Product role
- No native battery conversion path is recorded for the product.
- Published range
- 5–12 kW
- Phase
- Three phase
- Backup boundary
- No native backup recorded
Decision evidence
What the documents establish
Published evidence, source-reviewed non-disclosure and unresolved questions remain separate from the product score.
01Backup1 published · 0 reviewed absence · 0 not applicable · 0 open02Digital control4 published · 5 reviewed absence · 0 not applicable · 3 open04Operating envelope8 published · 0 reviewed absence · 0 not applicable · 0 open06Service pathway8 published · 0 reviewed absence · 0 not applicable · 1 open
Warranty coverage: 10-year term
Coverage includes
✓Parts
✓Labour
✓Extendable
Parts, labour & extendable · term longer than 24 of 95 scored inverters
No inverter in the fleet publishes a year-by-year performance or output guarantee the way panels and batteries do - this shows the covered term against the market-typical term and where every scored inverter’s term lands (grey dots, sized by model count), plus what the warranty actually includes.
Before you buy
Local positionUse a market view to check local availability, approvals and warranty scope.
Ask the installerWill the exact SG RT model satisfy the site phase, array, MPPT, export-control and local grid requirements?
Verification & sources
Market context
Global evidencechange in the site menu
Global benchmark. This scorecard is benchmarked globally. A global score does not imply local availability, certification, warranty coverage, or installer compatibility.
Benchmark anchor. The score is anchored to the highest published output in this exact electrical and regional series. Scored model: SG12RT · checked 2026-07-31. Evidence.
Sources & references · checked 2026-08-31
Strong evidence coverage
18 of 18 scored criteria link directly to a published source.
Values marked estimated, derived, or not found remain visible on the audit sheet and do not carry the same evidential weight as a linked source. Coverage measures direct links, not a guarantee that a claim is correct.
How far the evidence reaches
1 of 4 questions with checkable rows has a row beyond the maker's claim.
- Output2 checkable rows, none beyond the maker's claim
- Endurance2 checkable rows, none beyond the maker's claimMaker-only: 2 design facts
- Safety1 of 2 checkable rows beyond the maker's claim
- BackingMaker-only: 2 maker's commitments; no checkable rows
- Fit2 checkable rows, none beyond the maker's claimMaker-only: 6 design facts
- FootprintNot scored for inverters
- Third-party source
- Certified or regulator-listed
- Manufacturer claim
- Reviewed absence
Each bar is one question's checkable rows for this product at true share, stronger tiers first; hatching marks a reviewed absence: not published, we looked. Maker-only rows (warranty terms and design facts that rest on the maker's own documents) are counted under each question, never dropped. review.solar has measured none of these rows itself. How the evidence puzzle works
Record revision. DS_20220516 SG5.0 / 6.0 / 7.0 / 8.0 / 10 / 12RT V17 EN. First-market DE overlay review 2026-08-31: official German catalogues recorded for the remaining 17 AU+US identities; Australian and United States overlays and scores unchanged.
- Sourced valuesData card →
- Warranty summary10-year product warranty →
Show 11 more
- Archived copy of the primary sourcePDF ↗
- Grid & safety certificationManufacturer ↗
- Grid & safety certificationManufacturer ↗
- Grid & safety certificationManufacturer ↗
- Grid & safety certificationManufacturer ↗
- Grid & safety certificationManufacturer ↗
- Grid & safety certificationManufacturer ↗
- Warranty period (yrs)Warranty ↗
- Warranty assuranceWarranty ↗
- Firmware & security disclosureManufacturer ↗
- Firmware & security disclosureManufacturer ↗
Change ledger
Product record history
4 changes to this record · 8 products changed in this update
Grid & safety certification
- Before
- IEC 62109 + grid codes, 3+ markets
- After
- IEC 62109 + grid codes, 2 markets
Grid & safety certification: Evidence sources
- Before
- https://info-support.sungrowpower.com/application/pdf/2022/05/16/DS_20220516_SG5.0_6.0_7.0_8.0_10_12RT_Datasheet_V17_EN.pdf
- After
- https://cer.gov.au/document/cec-approved-inverters-0; https://hybrid.connect-direct.energynetworks.org/lct/v1/ttr-search?manufacturer_id=61&skip=20&limit=20&sort_by=PublishedDate&ascending=desc; https://info-support.sungrowpower.com/application/pdf/2022/05/16/DS_20220516_SG5.0_6.0_7.0_8.0_10_12RT_Datasheet_V17_EN.pdf; https://ptpiree.pl/aktualnosci/komunikat-dotyczacy-wykazu-urzadzen-zgodnych-z-wymaganiami-nc-rfg/; https://ptpiree.pl/kodeksy-sieci/wykaz-certyfikatow/; https://ptpiree.pl/wp-content/uploads/2026/09/2026-09-21-Wykaz-urzadzen_1.2.pdf; https://solarequipment.energy.ca.gov/Home/DownloadtoExcel?filename=InvertersList; https://www.certipedia.com/certificates/50485651?locale=en&page_number=3
4 changes to this record · 1 product changed in this update
Shutdown / arc safety
- Before
- String with AFCI (integrated, enabled by default)
- After
- String with AFCI (optional / software-activatable)
Shutdown / arc safety: Evidence sources
- Before
- https://info-support.sungrowpower.com/application/pdf/2022/05/16/DS_20220516_SG5.0_6.0_7.0_8.0_10_12RT_Datasheet_V17_EN.pdf
- After
- https://info-support.sungrowpower.com/application/pdf/2022/05/16/DS_20220516_SG5.0_6.0_7.0_8.0_10_12RT_Datasheet_V17_EN.pdf; https://info-support.sungrowpower.com/product-materials/9d6fde1d-1b2a-456f-8c23-afebe931515e.pdf
3 changes to this record · 22 products changed in this update
AU Warranty conditions
- Current text
- labour: A standard service rebate may be payable to the installer for an approved replacement. The rebate table effective 1 July 2026 to 30 June 2027 lists $180 AUD excluding GST for three-phase inverters from 5 kW to 10 kW and from 15 kW to 25 kW and names no band for 12 kW, so the SG12RT rebate amount is not publicly established.; registration: The warranty terms provide for parts-only or standard extension of covered inverters. The current Australian extension price list (2025 v2.2) names SG5.0RT, SG8.0RT, SG10RT, SG15RT and SG20RT and does not name SG12RT, so an SG12RT extension price is not publicly established. The extension page states purchase must be within 1 year after installation, while the warranty terms state an extension may be purchased up to the end of the standard warranty period.; remedy: Repair or replacement for an approved claim.; removal reinstallation: Approved service labour is supported through the published rebate.; transferability: Standard and Extended Warranties are transferable, but original purchase proof is required.; transport: Sungrow covers outbound and inbound standard ground transportation up to a total of $200; excess costs and other transport modes are borne by the claimant.
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Warranty assuranceWarranty assurance+6 in JSON recordAU Evidence sources
- Before
- https://info-support.sungrowpower.com/application/pdf/2022/05/16/DS_20220516_SG5.0_6.0_7.0_8.0_10_12RT_Datasheet_V17_EN.pdf; https://info-support.sungrowpower.com/product-materials/9d6fde1d-1b2a-456f-8c23-afebe931515e.pdf; https://service.sungrowpower.com.au/Warranty/warranty; https://service.sungrowpower.com.au/Warranty/warranty-extension; https://service.sungrowpower.com.au/files/Web_Files/Warranty/WD_202404_Term_Sungrow-s%20Inverters%2010-Year%20Limited%20Warraty_V4.2.pdf; https://www.sungrowpower.com/en/products/string-inverter/sg5-6-7-8-10-12rt; https://www.sungrowpower.com/en/security-incident-response
- After
- https://info-support.sungrowpower.com/application/pdf/2022/05/16/DS_20220516_SG5.0_6.0_7.0_8.0_10_12RT_Datasheet_V17_EN.pdf; https://info-support.sungrowpower.com/product-materials/9d6fde1d-1b2a-456f-8c23-afebe931515e.pdf; https://service.sungrowpower.com.au/New%20knowledge%20base%20file/warranty/WD_202510_Term_Sungrow-s%20Inverters%2010-Year%20Limited%20Warraty_V4.32.pdf; https://service.sungrowpower.com.au/Warranty/warranty; https://service.sungrowpower.com.au/Warranty/warranty-extension; https://service.sungrowpower.com.au/files/Web_Files/Warranty/WD_202404_Term_Sungrow-s%20Inverters%2010-Year%20Limited%20Warraty_V4.2.pdf; https://www.sungrowpower.com/en/products/string-inverter/sg5-6-7-8-10-12rt; https://www.sungrowpower.com/en/security-incident-response
AU Warranty scope
- Current text
- Australia; Sungrow's current warranty page and its linked terms (file name V4.32_202510; document footer V4.31_202510) list SG5.0RT through SG12RT under the 10-year standard inverter warranty, which runs ten years from installation and no more than eleven years from manufacture, whichever comes first.
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Warranty assuranceWarranty assurance+6 in JSON record
1 change to this record · 4 products changed in this update
AU Certifications
- Current text
- The Clean Energy Regulator approved-inverter export of 24 September 2026 has series RT rows for SG5.0RT, SG7.0RT, SG8.0RT, SG10RT, SG15RT and SG20RT and no SG12RT row; a CER listing for the scored SG12RT bin is not publicly established. The datasheet linked from Sungrow's Australian SG5.0/8.0/10RT product page (page 2, Version 16) covers SG5.0RT, SG7.0RT, SG8.0RT and SG10RT only.; The exact series datasheet publishes IEC 62109 and AS/NZS 4777.2 compliance.
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Warranty assuranceWarranty assurance+5 in JSON record
5 changes to this record · 10 products changed in this update
AU Support Note
- Current text
- Sungrow publishes the exact non-P2 SG5-12RT series globally and lists SG12RT in its Australian warranty terms. The exact SG12RT-inclusive manual and current family page document firmware updating, and the global vulnerability-disclosure policy (Version 1.0, last updated 20 September 2026) explicitly covers all Sungrow products. This is disclosure evidence; signed-update assurance, a fixed support lifetime, installed firmware and device-specific remediation status remain unestablished. Sungrow's Australian product pages cover SG5.0/8.0/10RT (rated output 5 to 9.999 kW) and SG15/20RT, and none names SG12RT, so Australian sale of the 12 kW bin is not publicly established by a product or approval source. SG12RT-P2 communication hardware and unrelated cloud advisories are not transferred to this record.
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Warranty assuranceWarranty assurance+5 in JSON recordAU Warranty scope
- Before
- Australia; Sungrow's current warranty page lists SG5.0RT through SG12RT under its 10-year standard inverter warranty.
- After
- Australia; Sungrow's current warranty page and its linked terms (file V4.32_202510) list SG5.0RT through SG12RT under the 10-year standard inverter warranty, which runs ten years from installation and no more than eleven years from manufacture, whichever comes first.
AU Certifications
- Before
- The exact series datasheet publishes IEC 62109 and AS/NZS 4777.2 compliance.
- After
- The Clean Energy Council approved-inverter list as pinned from the Clean Energy Regulator export of 24 September 2026 has series RT rows for SG5.0RT, SG7.0RT, SG8.0RT, SG10RT, SG15RT and SG20RT and no SG12RT row; a CER listing for the scored SG12RT bin is not publicly established. The datasheet linked from Sungrow's Australian SG5.0/8.0/10RT product page (page 2, Version 16) covers SG5.0RT, SG7.0RT, SG8.0RT and SG10RT only.; The exact series datasheet publishes IEC 62109 and AS/NZS 4777.2 compliance.
AU Warranty conditions
- Current text
- labour: A standard service rebate may be payable to the installer for an approved replacement. The rebate table effective 1 July 2026 to 30 June 2027 lists $180 AUD excluding GST for three-phase inverters from 5 kW to 10 kW and from 15 kW to 25 kW and names no band for 12 kW, so the SG12RT rebate amount is not publicly established.; registration: The warranty terms provide for parts-only or standard extension of covered inverters. The current Australian extension price list (2025 v2.2) names SG5.0RT, SG8.0RT, SG10RT, SG15RT and SG20RT and does not name SG12RT, so an SG12RT extension price is not publicly established. The extension page states purchase must be within 1 year after installation, while the warranty terms state an extension may be purchased up to the end of the standard warranty period.; remedy: Repair or replacement for an approved claim.; removal reinstallation: Approved service labour is supported through the published rebate.; transferability: Transfers for the remaining term with original purchase evidence.; transport: Sungrow covers outbound and inbound standard ground transportation up to a total of $200; excess costs and other transport modes are borne by the claimant.
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Warranty assuranceWarranty assurance+5 in JSON recordWarranty assurance: Evidence sources
- Before
- https://service.sungrowpower.com.au/Warranty/warranty-extension; https://service.sungrowpower.com.au/files/Web_Files/Warranty/WD_202404_Term_Sungrow-s%20Inverters%2010-Year%20Limited%20Warraty_V4.2.pdf
- After
- https://service.sungrowpower.com.au/New%20knowledge%20base%20file/warranty/WD_202510_Term_Sungrow-s%20Inverters%2010-Year%20Limited%20Warraty_V4.32.pdf; https://service.sungrowpower.com.au/Warranty/warranty-extension
7 changes to this record · 1 product changed in this update
AU Evidence sources
- Before
- https://info-support.sungrowpower.com/application/pdf/2022/05/16/DS_20220516_SG5.0_6.0_7.0_8.0_10_12RT_Datasheet_V17_EN.pdf; https://service.sungrowpower.com.au/Warranty/warranty; https://service.sungrowpower.com.au/Warranty/warranty-extension; https://service.sungrowpower.com.au/files/Web_Files/Warranty/WD_202404_Term_Sungrow-s%20Inverters%2010-Year%20Limited%20Warraty_V4.2.pdf
- After
- https://info-support.sungrowpower.com/application/pdf/2022/05/16/DS_20220516_SG5.0_6.0_7.0_8.0_10_12RT_Datasheet_V17_EN.pdf; https://info-support.sungrowpower.com/product-materials/9d6fde1d-1b2a-456f-8c23-afebe931515e.pdf; https://service.sungrowpower.com.au/Warranty/warranty; https://service.sungrowpower.com.au/Warranty/warranty-extension; https://service.sungrowpower.com.au/files/Web_Files/Warranty/WD_202404_Term_Sungrow-s%20Inverters%2010-Year%20Limited%20Warraty_V4.2.pdf; https://www.sungrowpower.com/en/products/string-inverter/sg5-6-7-8-10-12rt; https://www.sungrowpower.com/en/security-incident-response
Firmware & security disclosure
- Before
- Not previously recorded
- After
- Vulnerability disclosure policy + firmware/security documentation published
Firmware & security disclosure: Evidence sources
- Before
- Not previously recorded
- After
- https://info-support.sungrowpower.com/product-materials/9d6fde1d-1b2a-456f-8c23-afebe931515e.pdf; https://www.sungrowpower.com/en/products/string-inverter/sg5-6-7-8-10-12rt; https://www.sungrowpower.com/en/security-incident-response
AU Support Note
- Before
- Sungrow publishes the exact SG RT electrical series and Australian warranty coverage.
- After
- Sungrow publishes the exact non-P2 SG5-12RT series and Australian warranty coverage. The exact SG12RT-inclusive manual and current family page document firmware updating, and the global vulnerability-disclosure policy explicitly covers all Sungrow products. This is disclosure evidence; signed-update assurance, a fixed support lifetime, installed firmware and device-specific remediation status remain unestablished. SG12RT-P2 communication hardware and unrelated cloud advisories are not transferred to this record.
Firmware & security disclosure: Evidence status
- Before
- Not previously recorded
- After
- sourced
8 changes to this record · 61 products changed in this update
DE Warranty conditions
- Before
- Not previously recorded
- After
- labour: Removal, installation and reinstallation labour are excluded unless a separate written service arrangement applies.; registration: Proof of purchase, product identity and performance data requested for diagnosis remain claim conditions.; remedy: Sungrow may repair or replace an accepted defective product under the governing terms.; removal reinstallation: Removal and reinstallation are not unconditionally covered.; transferability: Transfer at the same installation site requires Sungrow's agreement under the reviewed German terms.; transport: The claimant pays freight to Sungrow; Sungrow pays delivery of the repaired or replacement product under the reviewed terms.
DE Warranty scope
- Before
- Not previously recorded
- After
- Germany; Sungrow's German service factsheet publishes ten years for inverters up to 20 kW, which includes SG12RT. The governing German warranty terms remain controlling. SG15RT, SG20RT, SG RS and SG110CX are not transferred onto this SG12RT record.
DE Status
- Before
- Not previously recorded
- After
- available
DE Support Note
- Before
- Not previously recorded
- After
- The same German Service Factsheet V2.0 already used for the SG RS family covers this inverter band. SG15RT and SG20RT stay outside this record. Manufacturer listing is established; distributor inventory is not inferred.
Source revision
- Before
- DS_20220516 SG5.0 / 6.0 / 7.0 / 8.0 / 10 / 12RT V17 EN
- After
- DS_20220516 SG5.0 / 6.0 / 7.0 / 8.0 / 10 / 12RT V17 EN. First-market DE overlay review 2026-08-31: official German catalogues recorded for the remaining 17 AU+US identities; Australian and United States overlays and scores unchanged.
DE Grid and installation context
- Before
- Not previously recorded
- After
- Sungrow Germany lists SG5.0RT through SG12RT on the German string-inverter page. Grid codes are not copied from SG15RT, SG20RT, SG RS or SG110CX. Site approval remains installation-specific.
DE Evidence sources
- Before
- Not previously recorded
- After
- https://ger.sungrowpower.com/upload/file/20230818/DE_Service_Factsheet_V2.0.pdf; https://www.sungrowpower.com/de/de/products/string-inverter/b-sg5-0/6-0/8-0/10/12rt-sg15/20rt; https://www.sungrowpower.com/de/de/warranty-terms-and-conditionsdetail-global-site
DE Certifications
- Before
- Not previously recorded
- After
- Sungrow's German product page names SG5.0RT through SG12RT including the scored SG12RT bin.
4 changes to this record · 73 products changed in this update
Value
- Before
- Not previously recorded
- After
- Direct-pv string inverter with 2 independent MPPTs at the scored model boundary.
Evidence sources
- Before
- Not previously recorded
- After
- https://info-support.sungrowpower.com/application/pdf/2022/05/16/DS_20220516_SG5.0_6.0_7.0_8.0_10_12RT_Datasheet_V17_EN.pdf
Confidence
- Before
- Not previously recorded
- After
- high
State
- Before
- Not previously recorded
- After
- supported
This is review.solar's publication history. It does not claim the product changed on the recorded date, and it excludes compatibility, system pairing, installation suitability and relative leaderboard prose. Open the complete JSON record.
Evidence timeline
Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots.
- Core scorecard evidence checked
- DE market evidence checked
- US market evidence checked
- AU market evidence checked
- Plain-language warranty summary checked
- Series benchmark evidence checked
Scored by Solar Analytica Research
Further reading from Findings
Stay across the benchmark.
New scorecards, score changes and market signals, published as they happen.
Our reading
SG RT scores 70, placing 17 of 25 in the Value & Volume class against a class average of 72.1. Its strongest scoring dimension is thermal & physical resilience (85), above the class average of 81. Energy Ecosystem scores 46, the lowest pillar for this product. The class average on energy ecosystem is 51. Key specifications: 98.5% peak efficiency, 2 MPPT inputs, 10-year warranty.
Dietreich Farquharson · review.solar