Growatt SPE 6000 US
For off-grid homes and cabins that want 6 kW of 240 V with a large solar input at a low price. A strong rival to the EG4 6000XP.
Amazon$1,399
The Growatt SPE 6000 US is the better hybrid solar inverter overall, rated 4.1 to 3.0. The Growatt SPE 6000 US leads on efficiency, features and solar input. The Growatt SPE 6000 US costs $39 less ($1,399 vs $1,438).
MPP Solar LV6048
An older low-voltage split-phase design for off-grid buyers with lots of small panels. Newer high-voltage units are easier to wire.
MPP Solar US store $1,438$1,438
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 Growatt SPE 6000 US for efficiency (95% peak efficiency, 75 W idle vs 90% peak efficiency, 100 W idle), features (UL 1741 listed, Wi-Fi add-on, parallel stacking, generator input, battery communication vs Wi-Fi add-on, parallel stacking; not UL 1741 listed) and solar input (9,000 W of panels, 550 V max, 2 MPPTs vs 8,000 W of panels, 145 V max, 2 MPPTs).
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 | Growatt SPE 6000 US | MPP Solar LV6048 |
|---|---|---|
| Overall rating | 4.1/5 | 3.0/5 |
| Value 30% | 93 $233 per kW of continuous output | 92 $240 per kW of continuous output |
| Solar input 20% | 68 9,000 W of panels, 550 V max, 2 MPPTs | 34 8,000 W of panels, 145 V max, 2 MPPTs |
| Efficiency 20% | 67 95% peak efficiency, 75 W idle | 23 90% peak efficiency, 100 W idle |
| Features 15% | 82 UL 1741 listed, Wi-Fi add-on, parallel stacking, generator input, battery communication | 30 Wi-Fi add-on, parallel stacking; not UL 1741 listed |
| Warranty 15% | 44 5-year warranty | 0 1-year warranty |
Specifications
| Growatt SPE 6000 US | MPP Solar LV6048 | |
|---|---|---|
| Output | ||
| Output voltage | 120/240 V split-phase | 120/240 V split-phase |
| Continuous output | 6,000 W | 6,000 W |
| Surge | - | 12,000 W |
| Peak efficiency | 95% | 90% |
| CEC efficiency | 94.5% | - |
| Idle draw | 75 W | 100 W |
| Transfer time | 20 ms | 10 ms |
| Parallel units | Up to 9 units | Up to 3 units |
| Solar | ||
| Max PV power | 9,000 W | 8,000 W |
| Max PV voltage (Voc) | 550 V | 145 V |
| MPPT range | 60 to 480 V | 60 to 115 V |
| MPPT trackers | 2 | 2 |
| PV current per tracker | 22 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 | 140 A | 220 A |
| AC charge current | 140 A | 60 A |
| Battery communication | Yes | - |
| Grid sell-back | - | No |
| Generator input | Yes | No |
| UL 1741 | Yes | No |
| Build | ||
| App monitoring | Optional add-on | Optional add-on |
| Enclosure | IP20 | - |
| Dimensions | 550 x 465 x 150 mm | 130 x 622.6 x 610 mm |
| Weight | 47.4 lb | 66.1 lb |
| Warranty | 5 years | 1 year |
| Released | 2025-09 | 2018-01 |