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
4.0/5
A grid-interactive 12 kW whole-home hybrid with UL 1741 SB listing, for homeowners who want to sell solar and back up the house.
- 12 kWOutput
- 48 VBattery
- 18,000 WSolar input
- 100 WIdle draw
Check price at SunGoldPower$2,990
Price checked October 23, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Sells solar and battery power back to the grid with UL 1741 SB listing
- Takes 18,000 W of panels
- Outdoor IP65 enclosure with 200 A grid pass-through for whole-home backup
- Wi-Fi logger in the box
Cons
- Up to 100 W self-consumption
- Warranty length not published
- Transfer time not published
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its output. How we rank explains each one.
Specifications
| Model number | SGS-12K18MAX |
|---|---|
| Output | |
| Output voltage | 120/240 V split-phase |
| Continuous output | 12,000 W |
| Surge | 18,000 W |
| Max efficiency | 97.5% |
| CEC efficiency | 96.5% |
| Idle draw | 100 W |
| Parallel units | Up to 6 units |
| Solar | |
| Max PV power | 18,000 W |
| Max PV voltage (Voc) | 550 V |
| MPPT range | 125 to 450 V |
| MPPT trackers | 2 |
| PV current per tracker | 32 A |
| Battery and grid | |
| Battery voltage | 48 V |
| Battery types | Lithium, lead-acid, user-defined |
| Max charge current | 240 A |
| AC charge current | 200 A |
| Battery communication | Yes |
| Grid sell-back | Yes |
| Generator input | Yes |
| UL 1741 | UL 1741 SB |
| Build | |
| App monitoring | Included |
| Enclosure | IP65 |
| Dimensions | 840 x 440 x 260 mm |
| Weight | 105.8 lb |
| Released | 2025-09 |
Alternatives in this output
Sol-Ark 15K-2P
For homeowners and installers who want a long-proven whole-home hybrid with strong support. It costs more than EG4 for similar output.
Amazon Shop Solar Kits $4,999$4,999
Fortress Power Solo 6.5K
For off-grid cabins, ADUs and backup systems that want 240 V and a large solar input from a US-supported brand. It costs a little more than the EG4 6000XP.
Current Connected $1,549 Wind & Sun $1,549$1,549
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