EG4 12kPV
For grid-tied homes that want battery backup and net metering from a mid-size inverter. Pay the premium over the XP line only if you need grid sell or an outdoor install.
Signature Solar $2,999.99 Shop Solar Kits $2,999.99$2,999.99
The EG4 12kPV is the better hybrid solar inverter overall, rated 4.2 to 3.9. The EG4 12kPV leads on warranty, features and solar input. The EG4 6000XP wins on value. The EG4 6000XP costs $1,500 less ($1,499.99 vs $2,999.99).
EG4 6000XP
For off-grid homes and cabins that need 240 V at a low price per kW. It does the job of two 120 V inverters in one box, but can’t export to the grid.
Signature Solar $1,499.99 Shop Solar Kits $1,499.99$1,499.99
Prices were last checked October 23, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the EG4 12kPV for warranty (10-year warranty vs 5-year warranty), features (UL 1741 listed, Wi-Fi app, parallel stacking, grid sell-back, generator input, battery communication vs UL 1741 listed, Wi-Fi app, parallel stacking, battery communication; no grid sell-back) and solar input (12,000 W of panels, 600 V max, 2 MPPTs vs 8,000 W of panels, 480 V max, 2 MPPTs).
- Choose the EG4 6000XP for value ($250 per kW of continuous output vs $375 per kW of continuous output).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 120/240 V split-phase hybrid solar inverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | EG4 12kPV | EG4 6000XP |
|---|---|---|
| Overall rating | 4.2/5 | 3.9/5 |
| Value 30% | 65 $375 per kW of continuous output | 90 $250 per kW of continuous output |
| Solar input 20% | 68 12,000 W of panels, 600 V max, 2 MPPTs | 58 8,000 W of panels, 480 V max, 2 MPPTs |
| Efficiency 20% | 70 94% peak efficiency, 55 W idle | 65 93% peak efficiency, 50 W idle |
| Features 15% | 100 UL 1741 listed, Wi-Fi app, parallel stacking, grid sell-back, generator input, battery communication | 75 UL 1741 listed, Wi-Fi app, parallel stacking, battery communication; no grid sell-back |
| Warranty 15% | 100 10-year warranty | 44 5-year warranty |
Specifications
| EG4 12kPV | EG4 6000XP | |
|---|---|---|
| Output | ||
| Output voltage | 120/240 V split-phase | 120/240 V split-phase |
| Continuous output | 8,000 W | 6,000 W |
| Surge | 16,000 W | 12,000 W |
| Peak efficiency | 94% | 93% |
| CEC efficiency | 96.4% | - |
| Idle draw | 55 W | 50 W |
| Transfer time | 20 ms | 15 ms |
| Parallel units | Up to 10 units | Up to 16 units |
| Solar | ||
| Max PV power | 12,000 W | 8,000 W |
| Max PV voltage (Voc) | 600 V | 480 V |
| MPPT range | 120 to 500 V | 120 to 385 V |
| MPPT trackers | 2 | 2 |
| PV current per tracker | 25 A | 17 A |
| Runs without battery | - | Yes |
| Battery and grid | ||
| Battery voltage | 48 V | 48 V |
| Battery types | Lithium, lead-acid | Lithium, lead-acid |
| Max charge current | 167 A | 125 A |
| AC charge current | - | 115 A |
| Battery communication | Yes | Yes |
| Grid sell-back | Yes | No |
| Generator input | Yes | No |
| UL 1741 | UL 1741 SB | Yes |
| Build | ||
| App monitoring | Included | Included |
| Enclosure | NEMA 4X | IP20 |
| Dimensions | 29.5 x 20.5 x 11.2 in | 18 x 25.5 x 5.25 in |
| Weight | 110 lb | 52.9 lb |
| Warranty | 10 years | 5 years |
| Released | 2024-06 | 2023-10 |