UnbiasedSolar

Tigo

0.1% of recent U.S. home systems use Tigo inverters. 0.1% of recent U.S. home systems use Tigo home batteries.

Tigo Energy

Status: Small-cap; losses in 2024-2025; going-concern-type risks reported.

Company
USA (Campbell, CA; Nasdaq TYGO)
U.S. manufacturing
Main products
  • TS4-A-O (optimizer), TS4-A-F (RSD), EI Inverter 3.8-11.4 kW
Warranty
years: 25 (TS4); 12-15 (EI inverter)
Price tier
mid
Risks to weigh
  • Financial weakness

Specifications as stated by the manufacturer; confirm on the current datasheet and warranty document.

Tigo inverters on the CEC certified list

9 certified models, 2.626–10.04 kW. Smallest to largest. See all models.

ModelOutputCEC efficiencyType
TSI-3.0K-US2.626 kW96.5%Hybrid
TSI-3.8K-US3.324 kW97%Hybrid
TSI-5.0K-US4.28 kW97.5%Hybrid
TSI-6.0K-US5.143 kW97%Hybrid
TSI-7.6K-US6.58 kW97%Hybrid
TSI-8.2K-US7.166 kW97.5%Hybrid
TSI-9.0K-US7.874 kW97.5%Hybrid
TSI-10.0K-US8.76 kW97.5%Hybrid
TSI-11.4K-US10.04 kW97.5%Hybrid

Tigo home batteries on the CEC certified list

11 certified models, 5–30 kWh. Smallest to largest. See all models.

ModelCapacityPowerChemistryRound-trip
TGB-5.0-US5 kWh2.5 kWLithium Iron Phosphate—
TSB-7-US6.6 kWh3.5 kWLithium Iron Phosphate—
TSB-10-US9.9 kWh5.2 kWLithium Iron Phosphate—
TGB-10-US10 kWh5 kWLithium Iron Phosphate—
TSB-14-US13.2 kWh5.2 kWLithium Iron Phosphate—
TGB-15-US15 kWh7.5 kWLithium Iron Phosphate—
TSB-17-US16.5 kWh5.2 kWLithium Iron Phosphate—
TSB-20-US19.8 kWh5.2 kWLithium Iron Phosphate—
TGB-20-US20 kWh10 kWLithium Iron Phosphate—
TGB-25-US25 kWh12 kWLithium Iron Phosphate—
TGB-30-US30 kWh12 kWLithium Iron Phosphate—
Choosing equipmentA well-installed mid-tier system beats a premium brand installed badly. Ask quotes to name exact models, compare warranties in writing, and check that the company backing a 25-year warranty is financially healthy. Compare your quotes.