5 inverters scored · June 2026

Small Commercial inverters (15–30 kW)

Three-phase inverters in the 15–30 kW range, the sweet spot for SMEs, schools, and light industrial. Judged on efficiency ROI, string flexibility for complex commercial roofs, monitoring depth, and grid compliance. Backup matters less; bankability and O&M track record matter more.

Maker status:no notesfinancial note, still tradinginsolvency / administration / exitDetails on each scorecard
Residential <=15 kWSmall Commercial 15-30 kWC&I >=30 kW

Market context

Global benchmark

Premium European

Verto 27.027kW

Fronius  Three-phaseString4 MPPTs

81

Superior

Sunny Tripower 25.025kW

SMA  Three-phaseString3 MPPTs

75

Very good

Value & Volume

SUN2000-30KTL-M330kW

Huawei  Three-phaseString6 MPPTs

80

Superior

GW25K-MT25kW

GoodWe  Three-phaseString3 MPPTs

75

Very good

MID 25KTL3-X25kW

Growatt  Three-phaseString3 MPPTs

75

Very good

Maker status:no notesfinancial note, still tradinginsolvency / administration / exitDetails on each scorecard

Scores are tier-weighted. Efficiency counts more in C&I; backup and aesthetics less. Full methodology.