The assessment
How it scores, by category
Market position
The data
Hybrid inverter
Manages PV, battery DC and household AC through the inverter platform.
- Product role
- The battery remains a separate product even when it belongs to the same branded platform.
- Published range
- 12 kW
- Phase
- Not recorded
- Backup boundary
- Essential-load capability recorded
Warranty coverage: 10-year term
Coverage includes
Parts only · 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.
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 sibling 18KPV-11.4LV on the same certificate is a separate configuration and is not scored here. Scored model: 18KPV-12LV · checked 2026-08-04. Evidence.
Sources & references · checked 2026-09-01
Strong evidence coverage
27 of 27 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
2 of 5 questions with checkable rows have a row beyond the maker's claim.
- Output4 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
- Backing1 of 2 checkable rows beyond the maker's claimMaker-only: 2 maker's commitments
- Fit4 checkable rows, none beyond the maker's claimMaker-only: 9 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 correction. Spec sheet v1.4.3 (2026), installation manual v2.7.6 (2026), Intertek certificate 230209047GZU-001, and current online warranty reviewed 2026-08-06. First-market DE overlay review 2026-09-01: official German catalogues recorded; existing United States overlay and scores unchanged. Corrected 2026-10-21: this note previously said existing Australian overlays were unchanged; the record carried none.
- Sourced valuesData card →
- Archived copy of the primary sourcePDF ↗
Show 4 more
- Warranty period (yrs)Warranty ↗
- Financial strength & warranty backingManufacturer ↗
- Manufacturing track recordManufacturer ↗
- VPP & grid services readinessManufacturer ↗
Help strengthen this record
These are published evidence gaps, not private submissions. A source is reviewed under the same methodology whether it comes from a reader, installer or manufacturer.
- Surge protectionNot stated in reviewed documentsThe public documents reviewed for this record do not state this value. A published or third-party source is requested.Offer a source
Product record history
1 change to this record · 30 products changed in this update
Source revision
- After this change
- Spec sheet v1.4.3 (2026), installation manual v2.7.6 (2026), Intertek certificate 230209047GZU-001, and current online warranty reviewed 2026-08-06. First-market DE overlay review 2026-09-01: official German catalogues recorded; existing United States overlay and scores unchanged. Corrected 2026-10-21: this note previously said existing Australian overlays were unchanged; the record carried none.
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Primary datasheet
1 change to this record · 30 products changed in this update
Source revision
- After this change
- Spec sheet v1.4.3 (2026), installation manual v2.7.6 (2026), Intertek certificate 230209047GZU-001, and current online warranty reviewed 2026-08-06. First-market DE overlay review 2026-09-01: official German catalogues recorded; existing United States overlay and scores unchanged.
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Primary datasheet
4 changes to this record · 11 products changed in this update
US Warranty scope
- After this change
- United States; a 10-year full parts replacement or full product replacement warranty from the date of original purchase. Registration within the first year of purchase, or proof of purchase from an EG4 authorized distributor, is required for the warranty to remain valid, and product not purchased through an approved vendor is not covered. Cover transfers once, only while the product remains at the original installation site, and removing or reselling it voids the warranty. No labour condition is stated in the warranty document, version 1.2. Parts exchanges are covered during the term, with replacement shipping charges possible outside the continental United States. Unauthorized firmware changes void cover.
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Warranty period (yrs)Primary datasheet+4 in JSON recordUS Warranty conditions
- After this change
- labour: No labour condition is stated in the EG4 All-In-One Hybrid Inverter Warranty Document, Version 1.2; the stated remedy is full parts replacement or full product replacement, and damage incurred during installation, reinstallation or removal is excluded (exclusion 1).; registration: Registration within one year, or proof of purchase from an authorized EG4 distributor, is required; unauthorized firmware changes void coverage.; remedy: Full parts replacement or full product replacement is the published remedy.; removal reinstallation: Removal and reinstallation reimbursement is not promised.; transferability: Transfers once only while the inverter remains at the original installation site; removal or resale voids coverage.; transport: Replacement shipping charges may apply outside the continental United States.
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Warranty period (yrs)Primary datasheet+4 in JSON recordUS Certifications
- After this change
- Intertek certificate of compliance 230209047GZU-001, issued 3 April 2025, lists UL 1741:2021 Edition 3 (revised to 19 May 2023) with Supplements SA and SB, CSA C22.2 No. 107.1:2016, CSA C22.2 No. 330:2017 (photovoltaic rapid shutdown systems), IEEE 1547:2018, IEEE 1547.1:2020 and HECO SRD-IEEE-1547.1:2020 Edition 2.0 for models 18KPV-12LV and 18KPV-11.4LV. The certificate does not list UL 1699B or NEC 690.12. EG4 spec sheet version 1.4.3 lists AFCI to NEC 2020 690.11 and UL 1699B and rapid shutdown to NEC 2020 690.12, and EG4's hybrid inverter RSD transmitter note version 1.0 states that an AP Smart transmitter is built into all 18kPV models.; The California Energy Commission Grid Support Solar Inverter List and Grid Support Battery Inverter List both carry 18KPV-12LV at 208 V (10.4 kW, 208 Vac) and 240 V (12 kW, 240 Vac), described as a grid support utility interactive hybrid inverter (IV-12000-HYB-AW- may be followed by 00-99) with PCS functionality. The full-data export, which the CEC states has not changed since 1 October 2026, gives a grid support listing date of 21 June 2023, a last update of 2 June 2025 and a UL 1741 Supplement SB certificate by Intertek dated 3 April 2025. The list marks Common Smart Inverter Profile conformance as Y*, which the CEC defines as not certified to CSIP but connected to a gateway during NRTL compatibility testing.
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Warranty period (yrs)Primary datasheet+4 in JSON recordUS Support Note
- After this change
- EG4 Electronics LLC of 1130 Como Street South, Sulphur Springs, TX 75482, telephone 903-609-1988, is the certificate holder, with EG4's distributors page listing Signature Solar among more than a dozen distributors, and a Get EG4 Installed form on EG4's site through which an Elite Certified Installer contacts the home or business owner who submits it. EG4 is a US-headquartered brand whose parent is building US inverter manufacturing capacity in Commerce, Texas, and its hybrid inverters are co-developed with and manufactured by China-based Luxpowertek under a signed joint statement; EG4 makes no US-assembly or US-content claim for this model in its own product documents. A United States government cybersecurity advisory applies to this product line: CISA advisory ICSA-25-219-07, updated 9 September 2025, covers all versions of EG4's inverters including the 18kPV, citing four vulnerabilities including installation of firmware without an integrity check. EG4 remediated two server-side issues in April and August 2025 with no user action required, released integrity-checked firmware for the remainder, and announced updated hardware; the advisory concerns remote monitoring security, not electrical safety, and no product recall exists. Exact US advisory: CISA ICSA-25-219-07 Update B names EG4 18kPV all versions and records firmware and server-side mitigations for four CVEs. No public EG4 VDP or dated support horizon was established.
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Warranty period (yrs)Primary datasheet+4 in JSON record
5 changes to this record · 152 products changed in this update
DE Support Note
- Before
- Not previously recorded
- After
- eg4electronics.com is a United States catalogue. No German catalogue names 18KPV-12LV.
Source revision
- Before
- Spec sheet v1.4.3 (2026), installation manual v2.7.6 (2026), Intertek certificate 230209047GZU-001, and current online warranty reviewed 2026-08-06
- After
- Spec sheet v1.4.3 (2026), installation manual v2.7.6 (2026), Intertek certificate 230209047GZU-001, and current online warranty reviewed 2026-08-06. First-market DE overlay review 2026-09-01: official German catalogues recorded; existing Australian and United States overlays and scores unchanged.
4 changes to this record · 73 products changed in this update
Value
- Before
- Not previously recorded
- After
- Direct-pv hybrid inverter with 3 independent MPPTs at the scored model boundary.
Evidence sources
- Before
- Not previously recorded
- After
- https://eg4electronics.com/wp-content/uploads/2024/04/EG4-18KPV-12LV-Spec-Sheet.pdf
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.
- US market evidence checked
- Core scorecard evidence checked
- DE market evidence checked
- Series benchmark evidence checked
Scored by Solar Analytica Research
Stay across the benchmark.
New scorecards, score changes and market signals, published as they happen.
Our reading
18kPV scores 71, placing 37 of 63 in the Inverter class against a class average of 70.9. Its highest-scoring dimension is design & flexibility (92), running 10.7 points above the class average on this dimension. Efficiency scores 60, the lowest pillar for this product. The class average on efficiency is 70. Key specifications: 97.5% peak efficiency, 3 MPPT inputs, 10-year warranty.
Dietreich Farquharson · review.solar