SunGoldPower Freedom Pro 16K-48
A very large off-grid split-phase inverter for big homes, farms and shops that want one unit instead of a stack.
SunGoldPower $2,699$2,699
4.1/5
For homeowners and installers who want a long-proven whole-home hybrid with strong support. It costs more than EG4 for similar output.
- 12 kWOutput
- 48 VBattery
- 19,500 WSolar input
- 90 WIdle draw
- 10 yearsWarranty
Check price at AmazonCheck price at Shop Solar Kits$4,999
Price checked October 23, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- 200 A grid passthrough and 5 ms transfer back up a whole house without flicker
- 24 kW surge starts large motors like well pumps and AC compressors
- Grid sell, time-of-use and generator auto start in one box
- Outdoor-rated with a ten-year warranty
Cons
- 90 W idle draw is about 2 kWh of battery a day
- Costs more per kW than EG4’s comparable hybrids
The Sol-Ark Limitless family
Every Sol-Ark Limitless model we rank, smallest first. Ratings compare each against its own output.
| Model | Output | Rating | Price |
|---|---|---|---|
| Sol-Ark Limitless 12K-2P-LL | 10 kW | 4.0/5 | $3,849 |
| Sol-Ark 15K-2P (this one) | 12 kW | 4.1/5 | $4,999 |
| Sol-Ark 18K-2P | 18 kW | 4.1/5 | $6,298 |
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 | 15K-2P-LV |
|---|---|
| Output | |
| Output voltage | 120/240 V split-phase |
| Continuous output | 12,000 W |
| Surge | 24,000 W |
| Max efficiency | 97.5% |
| CEC efficiency | 96.5% |
| Idle draw | 90 W |
| Transfer time | 5 ms |
| Parallel units | Up to 12 units |
| Solar | |
| Max PV power | 19,500 W |
| Max PV voltage (Voc) | 500 V |
| MPPT range | 150 to 425 V |
| MPPT trackers | 3 |
| PV current per tracker | 26 A |
| Battery and grid | |
| Battery voltage | 48 V |
| Battery types | Lithium, lead-acid |
| Max charge current | 275 A |
| Battery communication | Yes |
| Grid sell-back | Yes |
| Generator input | Yes |
| UL 1741 | UL 1741 SB |
| Build | |
| App monitoring | Included |
| Enclosure | IP65 / NEMA 3R |
| Dimensions | 33 x 19.4 x 12 in |
| Weight | 135 lb |
| Warranty | 10 years |
| Released | 2022-08 |
Alternatives in this output
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
SunGoldPower SGS-12K18MAX
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.
SunGoldPower $2,990$2,990
Compare
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