Growatt SPE 12000 US
For off-grid homes that need whole-house 240 V power and a big solar array at a very low price per kW.
Self2Solar $1,769$1,769
4.1/5
For off-grid homes that need whole-house 240 V power and a big solar array at a low price per kW. Grid-tied owners who want to sell power should look at a hybrid instead.
- 12 kWOutput
- 48 VBattery
- 24,000 WSolar input
- 70 WIdle draw
- 5 yearsWarranty
Check price at Signature Solar$2,099.99Check price at Shop Solar Kits$2,099.99
Price checked October 23, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- 12 kW from battery (15 kW with solar help) runs a whole house from one box
- Takes up to 24,000 W of panels on four strings, so a big array charges it fast
- Separate generator port with auto start, plus a 100 A grid bypass
- Can run from solar with no battery connected
Cons
- Off-grid only: no grid sell
- Battery-to-load efficiency is only about 90%, so more of the battery is lost as heat
- Five-year warranty, half of what most split-phase hybrids carry
The EG4 XP family
Every EG4 XP model we rank, smallest first. Ratings compare each against its own output.
| Model | Output | Rating | Price |
|---|---|---|---|
| EG4 6000XP | 6 kW | 3.9/5 | $1,499.99 |
| EG4 12000XP (this one) | 12 kW | 4.1/5 | $2,099.99 |
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 | IV-15000-XP-IN-01 |
|---|---|
| Output | |
| Output voltage | 120/240 V split-phase |
| Continuous output | 12,000 W |
| Surge | 15,360 W |
| Peak efficiency | 90.2% |
| Idle draw | 70 W |
| Transfer time | 10 ms |
| Parallel units | Up to 16 units |
| Solar | |
| Max PV power | 24,000 W |
| Max PV voltage (Voc) | 500 V |
| MPPT range | 120 to 385 V |
| MPPT trackers | 2 |
| PV current per tracker | 35 A |
| Runs without battery | Yes |
| Battery and grid | |
| Battery voltage | 48 V |
| Battery types | Lithium, lead-acid |
| Max charge current | 250 A |
| Battery communication | Yes |
| Grid sell-back | No |
| Generator input | Yes |
| UL 1741 | Yes |
| Build | |
| App monitoring | Included |
| Enclosure | IP20 |
| Dimensions | 34.25 x 20.87 x 5.91 in |
| Weight | 104.7 lb |
| Warranty | 5 years |
| Released | 2024-11 |
Alternatives in this output
Sol-Ark 18K-2P
For large homes that want seamless whole-house backup with no load shedding. Few inverters match its output, but it costs well over most rivals.
Shop Solar Kits $6,298$6,298
Fortress Power Envy 10K
For grid-tied homes that want an outdoor hybrid with export, backup and US-based support at a lower price than the Envy True 12.
Wind & Sun $3,899$3,899
Compare
Compare the EG4 12000XP with any other hybrid solar inverter →
More from EG4 Electronics: every EG4 Electronics product ranked.