Generac GB1000 vs Westinghouse iGen1000s
What is the difference?
The Generac GB1000 has 1.6 kW of power, 3.2 kW peak, a 1.09 kWh battery. The Westinghouse iGen1000s has 1.5 kW of power, 3 kW peak, a 1.01 kWh battery.
The Generac GB1000 weighs 29 lb, the Westinghouse iGen1000s weighs 31 lb. The Generac GB1000 is easier to carry.
The Generac GB1000 has a 3-year warranty, the Westinghouse iGen1000s has a 2-year warranty.
Both have 120 V AC output.
Specs side by side
| Generac GB1000 | Westinghouse iGen1000s | |
|---|---|---|
| Capacity (Wh) | 1086 | 1008 |
| Continuous (W) | 1600 | 1500 |
| Peak (W) | 3200 | 3000 |
| Solar input (W) | 468 | — |
| Chemistry | NMC | — |
| Cycles | 800 | — |
| Expandable | — | — |
| Weight (lb) | 29 | 31 |
| Warranty (yr) | 3 | 2 |
| Fridge run time | 20.5 h | 19 h |
| CPAP run time | 24.6 h | 22.8 h |
| Wi-Fi router run time | 71.7 h | 66.5 h |
| Check on Amazon → | Check on Amazon → |
Specs as read from manufacturer pages on 2026-10-28 / 2026-10-26. Specs one maker does not list are left out of the comparison. Run times are for that appliance alone with a typical duty cycle, after inverter and depth-of-discharge losses. Sponsored links; we may earn a commission.
Common questions
Which has more capacity, Generac GB1000 or Westinghouse iGen1000s?
The Generac GB1000. More capacity: 1086 Wh vs 1008 Wh.
Which is lighter, Generac GB1000 or Westinghouse iGen1000s?
The Generac GB1000. Lighter: 29 lb vs 31 lb.
Which has the longer warranty, Generac GB1000 or Westinghouse iGen1000s?
The Generac GB1000. Longer warranty: 3 years vs 2 years.
More comparisons
- Generac GB1000 vs Anker SOLIX C1000 Gen 2
- Generac GB1000 vs Jackery Explorer 1000 v2
- Generac GB1000 vs EcoFlow DELTA 3 Classic
- Generac GB1000 vs EcoFlow DELTA 3 Plus
- Westinghouse iGen1000s vs EcoFlow DELTA 3 Classic
- Westinghouse iGen1000s vs EcoFlow DELTA 3 Plus
- Westinghouse iGen1000s vs Bluetti Elite 100 V2
- Westinghouse iGen1000s vs Bluetti AC70
Compare other models → · All Generac models · All Westinghouse models