Grandtech / Inverters
Grandtech SPI Solar Storage Inverter
SPI Series
Indoor split-phase storage inverter built for residential PV + battery systems. Two models (8 kW / 10 kW) with dual MPPT, 200 A charging, and exclusive Li-ion BMS dual activation.
Retail priceQuote pricing availableRequest a quote for current retail, freight, and installer pricing.
- 8 / 10 kW
- Output
- 99.9%
- MPPT efficiency
- 200 A
- Hybrid charging
UL 1741IEC 62109-1IEC 62109-2FCC 15 Class B
Overview
Why this inverter.
120 V single / 240 V split-phase
Dual MPPT — 22 A + 22 A PV input
Up to 200 A charging current
Time-slot peak-valley scheduling
Exclusive Li-ion BMS dual activation
Specifications
Key technical details.
Output
Rated output (10K / 8K)10 / 8 kW
Peak power20 / 16 kW
Rated voltage120 V single / 240 V split-phase
Switch time10 ms (typical)
WaveformPure sine wave
Battery
Battery typeLi-ion / Lead-acid / User-defined
Rated voltage48 V DC
Voltage range40 – 60 V DC
Max MPPT charging (10K / 8K)200 / 180 A
Max hybrid charging200 / 180 A
PV input
MPPT trackers2
Max PV array5500 W + 5500 W
Max input current22 A + 22 A
Max open-circuit voltage500 V DC + 500 V DC
MPPT voltage range125 – 425 V DC
General
Dimensions620 × 445 × 130 mm
Weight27 kg
ProtectionIP20 indoor
Operating temp−10 °C to 55 °C
Max battery inverter efficiency92%
Documents & warranty
