Printed as "PEAK POWER (SURGE CAPACITY)** 15360W for ≈10s" with the footnote "**With battery only." in the EG4 12000XP spec sheet v1.2.6, captured on September 25, 2026. The row is printed once for both model numbers the sheet covers.
Printed as "PEAK POWER (SURGE CAPACITY)** 15360W for ≈10s" with the footnote "**With battery only." in the EG4 12000XP spec sheet v1.2.6, captured on September 25, 2026. The row is printed once for both model numbers the sheet covers.
Printed as "MAXIMUM EFFICIENCY (PV TO LOADS) 93.5%" in the EG4 12000XP spec sheet v1.2.6, captured on September 25, 2026. The same block prints MPPT 99%, PV to battery 92.8%, AC to battery 92.5% and battery to loads 90.2%. Printed once for both model numbers the sheet covers. Manufacturer rating; no test conditions are given.
Printed as "AC OUTPUT DATA OUTPUT VOLTAGE 120/240VAC; 208VAC" in the EG4 12000XP Off-Grid Inverter user manual (v1.2.2) (PDF page 8). The manual cover lists "MODEL #: IV-12000-XP-IN-01 IV-15000-XP-IN-01" (PDF page 1); the specification table prints one value for both.
Printed as "NOMINAL AC VOLTAGE (GRID | GENERATOR) 120/240VAC; 120/208VAC (L1/L2/N required)" in the EG4 12000XP Off-Grid Inverter user manual (v1.2.2) (PDF page 8). The manual cover lists "MODEL #: IV-12000-XP-IN-01 IV-15000-XP-IN-01" (PDF page 1); the specification table prints one value for both.
Printed as "MAX. CONTINUOUS WATTAGE 12000W (L1-L2) | 6000W (L1-N or L2-N)" in the EG4 12000XP Off-Grid Inverter user manual (v1.2.2) (PDF page 8). The same row prints 12000W for L1-L2. The manual cover lists "MODEL #: IV-12000-XP-IN-01 IV-15000-XP-IN-01" (PDF page 1); the specification table prints one value for both.
Not printed for this model in the documents on file. Revised on 1 October 2026: The manual and datasheet print 2 MPPTs with "INPUTS PER MPPT 2/2" but no total number of PV inputs.
Printed as "MAX. RECOMMENDED SOLAR INPUT 28000W (14000 per MPPT)" in EG4 12000XP manual v1.2.2, EG4 12000XP manual v1.2.2 (MODEL #: IV-12000-XP-IN-01 IV-15000-XP-IN-01), technical specifications, MAX. RECOMMENDED SOLAR INPUT row. Revised on 1 October 2026: The 12000XP manual, which covers both IV-12000-XP-IN-01 and IV-15000-XP-IN-01, prints a maximum recommended solar input of 28000 W and ranks above the datasheet; 28 kW is the same figure in kilowatts.
Printed as "MAX. UTILIZED SOLAR POWER 24000W (12000 per MPPT)" in the EG4 12000XP Off-Grid Inverter user manual (v1.2.2) (PDF page 8). Printed in watts, 12000 per MPPT. The manual cover lists "MODEL #: IV-12000-XP-IN-01 IV-15000-XP-IN-01" (PDF page 1); the specification table prints one value for both.
24,000 W
The value as the manual prints it, in W. Printed as "MAX. UTILIZED SOLAR POWER 24000W (12000 per MPPT)" in the EG4 12000XP Off-Grid Inverter user manual (v1.2.2) (PDF page 8). Printed in watts, 12000 per MPPT. The manual cover lists "MODEL #: IV-12000-XP-IN-01 IV-15000-XP-IN-01" (PDF page 1); the specification table prints one value for both.
Printed as "MIN. PV DISCONNECT/ISOLATOR SPEC TORQUE SPECS" and "600V/40A 10.6 in-lbs. (1.2Nm)" in the EG4 12000XP Off-Grid Inverter user manual (v1.2.2) (PDF page 30). The manual cover lists "MODEL #: IV-12000-XP-IN-01 IV-15000-XP-IN-01" (PDF page 1); the specification table prints one value for both.
Printed as "RECOMMENDED GENERATOR CAPACITY 6000W – 15000W" in the EG4 12000XP Off-Grid Inverter user manual (v1.2.2) (PDF page 8). The same table prints "GENERATOR MAX. CONTINUOUS CURRENT 62.5A @ 240VAC". The manual cover lists "MODEL #: IV-12000-XP-IN-01 IV-15000-XP-IN-01" (PDF page 1); the specification table prints one value for both.
Printed as "INTEGRATED BREAKER MAXIMUM AMPERAGE BATTERY CAPACITY CABLE SIZE" and "MAX. TORQUE VALUES 300A 250A 400Ah 2/0 AWG (x2)" in the EG4 12000XP Off-Grid Inverter user manual (v1.2.2) (PDF page 32). The manual also says to "install a separate DC over-current protector or disconnect device between battery and inverter". The manual cover lists "MODEL #: IV-12000-XP-IN-01 IV-15000-XP-IN-01" (PDF page 1); the specification table prints one value for both.
Printed as "MIN. PV DISCONNECT/ISOLATOR SPEC TORQUE SPECS" and "600V/40A 10.6 in-lbs. (1.2Nm)" in the EG4 12000XP Off-Grid Inverter user manual (v1.2.2) (PDF page 30). Printed with "(1.2Nm)" beside it. The manual cover lists "MODEL #: IV-12000-XP-IN-01 IV-15000-XP-IN-01" (PDF page 1); the specification table prints one value for both.
Printed as "Install the inverter upright on a vertical surface" in the EG4 12000XP Off-Grid Inverter user manual (v1.2.2) (PDF page 26). The manual cover lists "MODEL #: IV-12000-XP-IN-01 IV-15000-XP-IN-01" (PDF page 1); the specification table prints one value for both.
UL 1741Manufacturer claim · equipment listingClaimedStatus unconfirmed
Manufacturer document claim for the named equipment. Issuer listing, exact revision and current status have not been independently checked. This is not a complete installed-system approval.
Archived copy of a document published by EG4 Electronics. 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 of a document published by EG4 Electronics. 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 of a document published by EG4 Electronics. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
12000XP to 15kW AC Power Output UpdateOfficialEG4 ElectronicsOfficial document
Source details
Revision
Not stated
Revision date
Not stated
Document group: other. Attached by exact model or SKU naming in the document text.
Location: Linked from https://eg4electronics.com/categories/inverters/eg4-12000xp/ with the link text "12000XP to 15kW AC Power Output Update"
Retrieved
PDF downloaded from a link published on the manufacturer's own site and preserved byte for byte. It establishes the document that link served on the access date. It is attached only to catalog rows whose exact documented SKU or exact model designation appears in this document's own text, so a document covering several models is attached to exactly those rows.
Archived copies
Archived copy of a document published by EG4 Electronics. 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 of a document published by EG4 Electronics. 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 of a document published by EG4 Electronics. 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 of a document published by EG4 Electronics. 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 of a document published by EG4 Electronics. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Has Worked Great After Resolving Initial Firmware Issues
Software
4/5
Reliability
5/5
Build quality
5/5
Ease of install
5/5
It has worked very well to run our entire house in two years l've had it running my home. I initially had some trouble with it limiting the solar voltage it would accept, but we fixed it after a couple of firmware updates (these were early adopter issues that they have since resolved). It also took me some time to get the settings right, but Signature Solar did a great job supporting me. I've liked it and I would do it again given the situation I had at the time. Next inverter will be more powerful because my home's power needs have increased. Overall it has been more than worth it.
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 details. This number counts only the evidence recorded so far. The source review for this product is not finished, or the maker has not disclosed enough, so the number can only go up.
Every scored input has a recorded source for this product.
Each input is scored against the best documented value for an inverter: warranty term and battery conversion efficiency against every published inverter, idle consumption (lower is better) against the inverters in the same output band, or against every published inverter when the output is not documented. A documented value always earns points; an undisclosed one earns 0 and is listed as missing. Researched products receive a score. Certificates earn points for the evidence itself. Size and weight do not affect scores.
CertificatesUL 1741Claimed10.2 / 45.0
Manufacturer claim; issuer verification pending. Applies to the exact inverter.
70 against 1 W, the lowest documented for an inverter in the 7 to 15 kW output band (printed by the maker): Fronius Primo 11.4-1 208-240. The bar is a printed bound: less than 1 W, as printed.
Less than 70 W in standby, tested with constant 300 VDC PV. This is a stated upper limit, not a measured average. Datasheet page 3. Printed as a bound: less than 70 W, as printed.
Warranty term and battery conversion efficiency are compared with every published inverter; idle consumption with the inverters in the same 7 to 15 kW output band. · Method version 0.5
UL 1741Product / system scope unresolvedClaimedStatus unconfirmed
Manufacturer document claim for the named equipment. Issuer listing, exact revision and current status have not been independently checked. This is not a complete installed-system approval.
UL 1741Manufacturer claim · equipment listingClaimedStatus unconfirmed
Manufacturer document claim for the named equipment. Issuer listing, exact revision and current status have not been independently checked. This is not a complete installed-system approval.
Manufacturer SKU IV-15000-XP-IN-01 · US market · 1 other version recorded
Observed
UL 1741: claimed
Product / system scope unresolved. Manufacturer document claim for the named equipment. Issuer listing, exact revision and current status have not been independently checked. This is not a complete installed-system approval.