Sigineer HP15048D
For large unpermitted off-grid homes that want 15 kW of split-phase power from one 48 V box, accepting high idle draw.
Sigineer $3,099$3,099
2.8/5
For a large off-grid home on 48 V that needs 15 kW of 120/240 V from one box on a budget. The short warranty and unverified listing are the trade-offs.
- 15,000 WContinuous
- 45,000 WSurge
- 120/240 V split-phaseOutput
- 225 WIdle draw
- NoUL listed
- 1 yearWarranty
Check price at Amazon$3,463.43Check price at SunGoldPower$3,350
Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- 15 kW of split phase runs a large home, including 240 V pumps and air conditioning
- 45,000 W surge for 20 seconds starts the biggest household motors
- Remote panel and generator auto-start included
- Far cheaper than premium inverters of this size
Cons
- One-year warranty is short for a whole-home inverter
- Idles at about 225 W unless power saver is on
- No named-lab UL listing, which can block permitting
The SunGoldPower LFPV family
Every SunGoldPower LFPV model we rank, smallest first. Ratings compare each against its own size.
| Model | Continuous | Rating | Price |
|---|---|---|---|
| SunGoldPower 12000W 48V Split Phase | 12,000 W | 2.8/5 | $2,899 |
| SunGoldPower 15000W 48V Split Phase (this one) | 15,000 W | 2.8/5 | $3,350 |
| SunGoldPower 18000W 48V Split Phase | 18,000 W | 2.8/5 | $3,950 |
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | LFPV15K48V240VSP |
|---|---|
| Output | |
| Type | Pure sine wave inverter-charger |
| AC output | 120/240 V split-phase |
| Continuous power | 15,000 W |
| Surge power | 45,000 W for 20 s |
| DC input range | 40 to 64 V |
| Idle draw | 225 W (4.7 A at 48 V) |
| Power-saving draw | 45 W |
| Peak efficiency | 88% |
| Connections | |
| AC outlets | 0 |
| GFCI outlets | No |
| Hardwire terminal | Yes |
| USB ports | None |
| Transfer switch | Yes |
| Pass-through rating | 100 A |
| Charger | 135 A |
| Lithium charge profile | Yes |
| Parallel units | No |
| Control and build | |
| Remote | Included |
| App | No |
| Display | Yes |
| Safety listing | No |
| Design | Low-frequency (transformer) |
| Cooling | load-controlled fan |
| Dimensions | 706 x 415 x 230 mm (27.8 x 16.3 x 9.1 in) |
| Weight | 170.9 lb |
| Warranty | 1 year |
Alternatives in this size
SunGoldPower 18000W 48V Split Phase
For a large off-grid home on 48 V that needs 18 kW of 120/240 V from one box on a budget. The short warranty and unverified listing are the trade-offs.
Amazon $3,950$3,950
AIMS Power 10000W 48V Split Phase
For a big off-grid home that needs 10 kW of split phase from 48 V and doesn’t need a UL listing. If the install must be inspected, the listed 12 kW costs little more.
Amazon AIMS Power $4,160$4,160
Compare
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