Manufacturer and seller images. Configuration examples may include additional equipment.
Image source: EG4 12000XP front view published by EG4 Electronics on its own 12000XP product page for model IV-12000-XP-IN-01 (printed IV-12000-XP-IN-1 by EG4). Manufacturer photograph of the 12 kW all-in-one off-grid inverter; the enclosure in the photograph reads 12000XP.Paid link · price checked
Newer: EG4 12000XP V2 · IV-15000-XP-IN-01EG4 datasheet v1.2.6 assigns 15 kW with PV to the updated model only.
The manufacturer's document "EG4 12000XP model-specific datasheet" prints IV-12000-XP-IN-01 on PDF page 1.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedLocation: EG4 12000XP model-specific datasheet, PDF page 1
Documented
Output voltage THD less than 3%; stated upper limit. Datasheet page 2.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
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.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedLocation: Spec sheet, AC OUTPUT DATA, "PEAK POWER (SURGE CAPACITY)" row and footnote **
Documented
Output voltage. Datasheet page 2.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
Datasheet page 2.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
1 spec not documented yet: pv string inputsHelp fill in ›
Output voltage THD less than 3%; stated upper limit. Datasheet page 2.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
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.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedLocation: Spec sheet, AC OUTPUT DATA, "PEAK POWER (SURGE CAPACITY)" row and footnote **
Documented
Output voltage. Datasheet page 2.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
Datasheet page 2.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
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.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedLocation: Spec sheet, EFFICIENCY block, "MAXIMUM EFFICIENCY (PV TO LOADS)" row
Documented
Datasheet page 2.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
Maximum battery charge/discharge current. Datasheet page 3.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
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.
Official instruction manual: EG4 12000XP manual v1.2.2 Rev 1.2.2 · Checked · Earlier documentLocation: PDF page 8, 3. Technical specifications, AC output data, "Output voltage" row
Documented
Approximately 10 seconds at 15,360 W, battery only. Datasheet page 2.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
Less than 10 ms for one unit; less than 20 ms in parallel. Stated upper limits. Datasheet page 2.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
Battery-only surge, approximately 10 seconds. Datasheet page 2.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
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.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
15 kW with PV only applies to IV-15000-XP-IN-01. Earlier model remains limited to 12 kW.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
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.
Official instruction manual: EG4 12000XP manual v1.2.2 Rev 1.2.2 · Checked · Earlier documentLocation: PDF page 8, 3. Technical specifications, AC input data, "Nominal AC voltage (grid | generator)" row
Documented
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.
Official instruction manual: EG4 12000XP manual v1.2.2 Rev 1.2.2 · Checked · Earlier documentLocation: PDF page 8, 3. Technical specifications, AC output data, "Max. continuous wattage" row
Documented
Maximum battery charge/discharge power. Datasheet page 3.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
Maximum battery-to-load conversion efficiency. Datasheet page 3.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
Lithium batteries; lead-acid operating range is 38.4–60 V. Datasheet v1.2.6, page 3.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
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.
Official instruction manual: EG4 12000XP manual v1.2.2 Rev 1.2.2 · Checked · Earlier documentNot documented
Converted: 28000 W x 0.001 = 28 kW
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.
Official instruction manual: EG4 12000XP manual v1.2.2 Rev 1.2.2 · Checked · Earlier documentOfficial datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedLocation: EG4 12000XP manual v1.2.2 (MODEL #: IV-12000-XP-IN-01 IV-15000-XP-IN-01), technical specifications, MAX. RECOMMENDED SOLAR INPUT row
Converted
12 kW per MPPT. Datasheet page 2.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
Maximum usable input current per MPPT. Datasheet page 2.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
Absolute limit 500 V; the datasheet recommends the 100–480 V input design range.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
Converted: 24000 W / 1000 = 24 kW
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.
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.
Official instruction manual: EG4 12000XP manual v1.2.2 Rev 1.2.2 · Checked · Earlier documentLocation: PDF page 8, 3. Technical specifications, PV input data, "Max. utilized solar power" row
Converted
Maximum PV-to-load conversion efficiency. MPPT tracking efficiency is separately 99%. Datasheet page 3.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
Minimum startup voltage. Datasheet page 2.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
Two per MPPT. Datasheet page 2.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
Per MPPT. Datasheet page 2.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
Manual table 10.1, printed page 26 (PDF page 30); specified range for PV terminals.
Official instruction manual: EG4 12000XP manual v1.2.2 Rev 1.2.2 · Checked · Earlier documentDocumented
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.
Official instruction manual: EG4 12000XP manual v1.2.2 Rev 1.2.2 · Checked · Earlier documentLocation: PDF page 30, 10.1 PV connections, Table 10.1 PV Connections, "Min. PV disconnect/isolator spec" column
Documented
Datasheet page 3.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
Manual v1.2.2, table 10.2, printed page 28 (PDF page 32): 250 A, minimum 400 Ah battery bank. Follow the full installation instructions.
Official instruction manual: EG4 12000XP manual v1.2.2 Rev 1.2.2 · Checked · Earlier documentDocumented
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.
Official instruction manual: EG4 12000XP manual v1.2.2 Rev 1.2.2 · Checked · Earlier documentLocation: PDF page 8, 3. Technical specifications, AC input data, "Recommended generator capacity" row
Documented
Manual table 10.3, printed page 30 (PDF page 34). Separate generator connection: 4 AWG.
Official instruction manual: EG4 12000XP manual v1.2.2 Rev 1.2.2 · Checked · Earlier documentDocumented
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.
Official instruction manual: EG4 12000XP manual v1.2.2 Rev 1.2.2 · Checked · Earlier documentLocation: PDF page 32, 10.2 Battery connections, Table 10.2 Battery Connections, "Integrated breaker" column
Documented
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.
Official instruction manual: EG4 12000XP manual v1.2.2 Rev 1.2.2 · Checked · Earlier documentLocation: PDF page 30, 10.1 PV connections, Table 10.1 PV Connections, "Torque specs" column
Documented
Manual table 10.3, printed page 30 (PDF page 34).
Official instruction manual: EG4 12000XP manual v1.2.2 Rev 1.2.2 · Checked · Earlier documentDocumented
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.
Official instruction manual: EG4 12000XP manual v1.2.2 Rev 1.2.2 · Checked · Earlier documentLocation: PDF page 26, 9.2 Location selection and installation
Documented
Published claims and calculations, not independent test results.
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 document
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedManufacturer specification, not an independent test.
Location: Printed model column and specification table
Retrieved
SHA-256: 2cb5d87f3fcd5acdf521a8fb5f5b506703af294cc0b188836d0fad71b0e7489d
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedArchived 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, unaltered, kept as a record of what EG4 Electronics published. Original address: https://eg4electronics.com/wp-content/uploads/2024/10/EG4-12000XP-Spec-Sheet.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 2cb5d87f3fcd5acdf521a8fb5f5b506703af294cc0b188836d0fad71b0e7489d
Location: Installation and user manual
Retrieved
SHA-256: 35f9d78900521f8e317c2a8b2c09b66d02b8b382ee354a3df202bc14b14795ff
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, unaltered, kept as a record of what EG4 Electronics published. Original address: https://eg4electronics.com/wp-content/uploads/2024/09/EG4-12000XP-Manual.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 35f9d78900521f8e317c2a8b2c09b66d02b8b382ee354a3df202bc14b14795ff
Location: Warranty document
Retrieved
SHA-256: af5cc3cb7ce4faf594bcb659cce873d3eaadaebcda2cc13f65c701f73efe356b
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, unaltered, kept as a record of what EG4 Electronics published. Original address: https://eg4electronics.com/wp-content/uploads/2025/03/EG4-12000XP-Warranty.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: af5cc3cb7ce4faf594bcb659cce873d3eaadaebcda2cc13f65c701f73efe356b
Location: Manufacturer product page
Retrieved
Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.
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, unaltered, kept as a record of what EG4 Electronics published. Original address: https://eg4electronics.com/wp-content/uploads/2024/10/EG4-12000XP-Spec-Sheet.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 2cb5d87f3fcd5acdf521a8fb5f5b506703af294cc0b188836d0fad71b0e7489d
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, unaltered, kept as a record of what EG4 Electronics published. Original address: https://eg4electronics.com/wp-content/uploads/2024/09/EG4-12000XP-Manual.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 35f9d78900521f8e317c2a8b2c09b66d02b8b382ee354a3df202bc14b14795ff
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, unaltered, kept as a record of what EG4 Electronics published. Original address: https://eg4electronics.com/wp-content/uploads/2025/03/EG4-12000XP-Warranty.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: af5cc3cb7ce4faf594bcb659cce873d3eaadaebcda2cc13f65c701f73efe356b
Standard warranty headline; full contract and registration conditions apply.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedDocumented
Affiliate links below. Affiliate disclosure
Price for one unit, as listed by the seller. Does not include tax, shipping and installation. Price checked .
The seller lists this as a new unit. Condition checked .
Distributor product page: Current Connected listing: EG4 12000XP 48V Split Phase Off-Grid Inverter, 12kW AC Output, 24kW Utilized Solar Input, UL 1741 & UL 9540 Solar Inverter Paid link.Checked Official datasheet: EG4 12000XP specification sheet Checked · Earlier documentDistributor store listing: Current Connected product listing Paid link.CheckedPrices we read at Current Connected · 52 readings from to
Since · Listing price (USD)
A break in a line is a gap in our readings: no price is drawn for days we did not read.
| Checked (UTC) | Seller | Price |
|---|---|---|
| Sep 20, 2026, 7:48 AM PDT | Current Connected Paid link. | $1,899.99 |
| Sep 23, 2026, 4:51 AM PDT | Current Connected Paid link. | $1,899.99 |
| Sep 25, 2026, 2:01 AM PDT | Current Connected Paid link. | $1,899.99 |
| Sep 26, 2026, 2:32 AM PDT | Current Connected Paid link. | $1,899.99 |
| Sep 27, 2026, 3:32 AM PDT | Current Connected Paid link. | $1,899.99 |
| Sep 28, 2026, 4:32 AM PDT | Current Connected Paid link. | $1,899.99 |
| Sep 29, 2026, 3:54 PM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 1, 2026, 1:06 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 2, 2026, 1:06 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 3, 2026, 1:06 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 4, 2026, 1:06 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 5, 2026, 1:05 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 6, 2026, 1:05 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 7, 2026, 1:15 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 8, 2026, 1:05 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 9, 2026, 1:25 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 10, 2026, 1:46 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 11, 2026, 1:05 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 12, 2026, 1:26 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 13, 2026, 1:15 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 14, 2026, 1:25 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 15, 2026, 1:06 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 16, 2026, 1:05 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 17, 2026, 1:15 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 18, 2026, 1:05 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 19, 2026, 1:45 AM PDT | Current Connected Paid link. | $1,899.99 |
| Oct 20, 2026, 1:36 AM PDT | Current Connected Paid link. | $2,099.99 |
| Oct 21, 2026, 1:36 AM PDT | Current Connected Paid link. | $2,099.99 |
| Oct 22, 2026, 1:16 AM PDT | Current Connected Paid link. | $2,099.99 |
| Oct 23, 2026, 2:09 AM PDT | Current Connected Paid link. | $2,099.99 |
| Oct 24, 2026, 1:06 AM PDT | Current Connected Paid link. | $2,099.99 |
| Oct 25, 2026, 1:06 AM PDT | Current Connected Paid link. | $2,099.99 |
| Oct 26, 2026, 1:07 AM PDT | Current Connected Paid link. | $2,099.99 |
| Oct 27, 2026, 1:06 AM PDT | Current Connected Paid link. | $2,099.99 |
| Oct 28, 2026, 1:26 AM PDT | Current Connected Paid link. | $2,099.99 |
| Oct 29, 2026, 1:16 AM PDT | Current Connected Paid link. | $2,099.99 |
| Oct 30, 2026, 1:26 AM PDT | Current Connected Paid link. | $2,099.99 |
| Oct 31, 2026, 1:26 AM PDT | Current Connected Paid link. | $2,099.99 |
| Nov 1, 2026, 1:06 AM PDT | Current Connected Paid link. | $2,099.99 |
| Nov 2, 2026, 1:36 AM PST | Current Connected Paid link. | $2,099.99 |
| Nov 3, 2026, 1:06 AM PST | Current Connected Paid link. | $2,099.99 |
| Nov 4, 2026, 1:06 AM PST | Current Connected Paid link. | $2,099.99 |
| Nov 5, 2026, 1:06 AM PST | Current Connected Paid link. | $2,099.99 |
| Nov 6, 2026, 1:06 AM PST | Current Connected Paid link. | $2,099.99 |
| Nov 7, 2026, 1:16 AM PST | Current Connected Paid link. | $2,099.99 |
| Nov 8, 2026, 1:16 AM PST | Current Connected Paid link. | $2,099.99 |
| Nov 9, 2026, 1:16 AM PST | Current Connected Paid link. | $2,099.99 |
| Nov 10, 2026, 1:06 AM PST | Current Connected Paid link. | $2,099.99 |
| Nov 11, 2026, 1:36 AM PST | Current Connected Paid link. | $2,099.99 |
| Nov 12, 2026, 1:26 AM PST | Current Connected Paid link. | $2,099.99 |
| Nov 13, 2026, 1:06 AM PST | Current Connected Paid link. | $2,099.99 |
| Nov 14, 2026, 12:35 AM PST | Current Connected Paid link. | $2,099.99 |
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So, when I commissioned this first 12000XPv2, I was expecting to be able to force it to fail over to the grid, but I couldn't. I turned on absolutely everything we had, across 6 structures. To the point where we were pulling in 14,000 watts of solar, and over 12,000 watts from the batteries (over 55amps per AC leg on output) and it held that for 10 minutes, when I finally said, "that's enough." I remember telling my wife on the other end of the line, who was turning all the appliances and lights on, "man, this thing is impressive." It's only failed over to the grid when we've hit our battery reserve of 20%. It's paired with two EG4 314Ah indoor wall-mount batteries, and it punches way above its weight class. I'm assuming part of that is the fact I used only the very best wire I could find, and oversized every wire in the entire circuit. Bottom line, I'm getting another one. I have absolutely zero desire to export to the grid, because the utilities are awful. The one downside is if you're using only one 12000XP to power your house or property, and you've got some distance in your feed lines (hundreds of feet), you will absolutely notice some light flickering at certain times of the day. Like when it's heavily charging the batteries with 150+ ams, and you've got an additional load on the circuit (say 8000 watts or more), voltages will drop, as happens in high-frequency inverters, and you'll see flickering at those moments. During normal operations, you shouldn't see it at all. But, a second (in parallel) 12000XP should permanently solve that. My only desired improvements are a 3rd (totally separate MPPT). I don't mind the 2 (in parallel) MPPTs = 4, but it desperately needs a 3rd independent MPPT. And, it needs a true 200Amp bypass, not like the fake 200A (really a 125A) bypass of the Watt Cycle 12000 Super. If it had those two improvements, and they could keep the cost down around where it is now ($1900), and it's still being built in Corinth, Texas, then it would remain king for quite some time to come. I know Watt Cycle did a decent job of copying it with the Super, but that's all it is: a copy.
Disclosure: I paid for this product with my own money.
Delivery: On time
Signature Solar has been fantastic in their support before, during, and after the sale. They've helped me several times with just technical questions, or if I was preparing to do something a little outside the box. I've had so few issues with the system, I haven't had to really call them in a panic because of a system-down situation. Mostly just, "Hey, I'm thinking about doing this in this way, what are your thoughts on the best way to accomplish this?" I did have to RMA one of my batteries, and they took care of that immediately.
Wow, I can't believe it has almost been 2 years since I got this inverter. Overall it is great, and I would recommend it to family, friends, or anyone else. I bought it at $2,500 and thought the price was good, but now it is for sale at $1,900 and it seems like it is going to stay at that price. Nothing in life is perfect, and there are small things to note about this inverter. Since there is a version 2 out, which only has some mild changes, some things may be worth knowing for either version. -Wifi Dongle: This might be updated/fixed now, but it still comes up online and I have had many hours trying to get mine working properly. The dongle really is the worst part. The app software is a bit rough around the edges too for setup, because the dongle it's self works fine when setup. It really seems to want a 2.4Ghz network. Also the dongle only sends updates every 10 seconds or so. This isn't a killer, because no sane person really should be watching it all day, but it would be nice if it was closer to 1 or 2 seconds. -Firmware Updates: The first firmware it was shipped with had some bugs in it. To be fair, it was a brand new product, and I knew I was early adopting. But the specs were everything I wanted and a price I liked at the time. The PV MPPT was not working properly in the morning, and I would have to disconnect and reconnect the PV(breaker or disconnect switch) each morning. They sent a beta update to me within days of me calling. The EG4 and Signature Solar customer service has always been great, even if some aren't as skilled at SS. The next public updates have been fine up to 0507, then 0709 came out with new features I wasn't ever expecting to see! But it messed up the charging and would not keep the batteries at my specified voltage after reaching it. The battery would then go down to resting voltage, so essentially, the battery cells would not properly be able to balance well. So I called, and SS could not revert, and they had me call EG4, and they did the process for me. It was fairly quick for me, after figuring things out with both companies(that it wasn't my fault). So there is a new firmware updated expected to be released in the near future(it has been many months of waiting though), and hopefully that fixes my issue. If not, I can just roll back to 0507 and everything works just fine. Note that I do run in Lead-Acid mode/Voltage, not SOC mode. This is to give my batteries the best chance of properly balancing, and I also didn't like when the batteries were controlling my inverter. Now it is more of a 2 step safety this way too. Install was as expected. It will only be easier or harder depending on each person's situation, but it requires 2 people to safely lift it into place, or another alternative method. It is heavy and big. UPS(uninterrupted power supply) works well, even if you are on grid power usage, or charging on too, if it drops out, you may get a tiny light flicker but nothing shuts down in the house, or annoying time clock fixes. Loads: In Florida, it "can" run a normal sized single family house, with limitations. 2 would be ideal in parallel. That said, I have reduced my water heater element to 2500watt, instead of 4500, put a soft start on my air conditioner(needed for voltage drop on startup), and I do try not to overload it. So when doing laundry I can draw 7KW from just that, then the A/C to 10,000 and regular loads of house run around 1KW-2KW. Which brings me right to the edge. So turning on a microwave at the wrong time can push it over to grid power. But it really isn't a big deal, just hurts the soul a little each time(haha). After a few minutes back in normal usage, it goes right back to battery/solar. A 2nd one would fix this, so it is not the unit's fault, just something to keep in mind for anyone looking to buy. Also SS says you can mix a V1 and V2 together, which is good for anyone in my situation, as I may end up doing that some day. I really don't have much to complain about this product, and these days where it seems disappointment is too often there, I thought to myself a few days ago, I am really happy with it overall and glad I got it. It still has 3 years of warranty, and I ideally want it to last 10+ years. Preferably longer, but I know inverters don't typically last forever. I guess one thing is the fans get a bit loud at higher current. When you start getting around 10KW or more for charge or discharge, they get pretty loud. Its not terrible, and they vary with the load. Way better than some other options out there. So I wouldn't keep this thing in an office or inside anywhere close by. Current Recommendation: Buy it, and enjoy it!
Delivery: On time
Signature Solar has always tried to be helpful. Some people there now(now they are a bigger company), are not quite as knowable, but they do try, and ask others for help with unfamiliar issues. Some are still top notch too. I have never had a problem with SS, and I have worked with them through 10-20 phone calls. Not all for this inverter. They have a huge support team. I know some people have not had a good experience, probably not many people, but that is not my experience with them. Everything was as expected.
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.
Manufacturer claim; issuer verification pending. Applies to the exact inverter.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · Checked5 of 25 years, the best documented for an inverter (printed by the maker): APsystems DS3
Standard warranty headline; full contract and registration conditions apply.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · Checked90.2 of 98.2 %, the best documented for an inverter (printed by the maker): GoodWe GW100K-ET-G10
Maximum battery-to-load conversion efficiency. Datasheet page 3.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · Checked70 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.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedWarranty 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
How it worksManufacturer 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.
Models: IV-12000-XP-IN-01
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedManufacturer 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 document
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedNo sourced accessories or replacement parts listed yet.
Manufacturer SKU IV-12000-XP-IN-01 · US market · 1 other version recorded
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.
Official datasheet: EG4 12000XP model-specific datasheet Rev 1.2.6 · CheckedLinks to DIY Solar Forum threads. The title is the forum's own words. It is a member's experience, not a Charged test, not a verified fault rate, and not a statement by the maker.
No recalls or legal notices on file; this is not a complete recall or court search. All notices · Report a notice
Something wrong that is not one of the values above?
Prices · price basis. * Calculated; estimates labeled. Value needs confirmation; select it for the reason.
