Generac PWRcell

Published figures

Stated stack range

Largest stated stack: 36 kWh (energy basis not stated) (2 cabinets).

Compare stated stack ranges.

Stated temperature limits

Stated operating range: 41°F (5°C) to 113°F (45°C), Generac PWRcell (gen 1, 2.85 kWh modules), all configurations.

Stated charging range: 41°F (5°C) to 122°F (50°C), Generac PWRcell (gen 1) battery cabinet, all configurations.

Stated discharging range: 14°F (−10°C) to 122°F (50°C), Generac PWRcell (gen 1) battery cabinet, all configurations.

Compare temperature limits.

After you enter a ZIP code, day counts describe outdoor air at the nearest station. A garage or indoor unit sees different air from the station. Output reductions inside the stated range are not counted.

Warranty terms

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Where published values differ

The documents state different values. Each value retains its source, configuration, and date where stated.

Features the manufacturer states

Configuration: Generac PWRcell (gen 1) battery cabinet, all configurations.

Government and program lists

This product is on none of the lists this site reads.

Installs

Medians require at least 20 priced installs for the named measure and period.

• Connecticut records 180 installs, 2022–2025. Source: Connecticut Energy Storage Solutions — enrollment. Median battery cost, 2022–2025: $1,548 per kWh, from 180 priced installs.

A count of installs says how many were installed, not how well they work. A median price is the middle reported price.

What Connecticut homes paid

All recorded installs were paired with solar PV.

Figures are medians. Parentheses give the middle half of prices. A dash means too few prices for a median.

Contract prices may include solar or other equipment. Prices are before the up-front incentive. Approvals run through Sep 29, 2026. Counts and prices are from the program’s Oct 1, 2026 release.

Compare recorded Connecticut prices.

Recalls and safety notices

No notice in the recall sources this site reads is matched to this product. That is not a safety finding. See every recall notice.

• UL 9540 listed: Yes (Generac PWRcell (gen 1) battery cabinet, all configurations)
  Spec sheet, at p.2 Specifications / Compliance, retrieved Sep 25, 2026 Not yet checked
• UL 9540 listed: Yes (Generac PWRcell (gen 1, 2.85 kWh modules), all configurations)
  Spec sheet, at p.2 Specifications / Compliance, retrieved Sep 25, 2026 Not yet checked
• UL 9540A tested: Yes (Generac PWRcell (gen 1) battery cabinet, all configurations)
  Spec sheet, at p.2 Specifications / Compliance, retrieved Sep 25, 2026 Not yet checked

The maker states the listing or test. The listing body's records have not been checked.

Backup hours from your load

The stated usable energy divided by your load gives hours, starting with a full battery.

Continuous power: 3.4 kW (AC)

Peak power: 4.5 kW (AC)

Continuous power: 4.5 kW (AC)

Peak power: 6 kW (AC)

Continuous power: 5.6 kW (AC)

Peak power: 7.5 kW (AC)

Continuous power: 6.7 kW (AC)

Peak power: 9 kW (AC)

Backup hours follow the California Air Resources Board’s Zero Emissions Residential Backup Power Tool. Appliance figures come from the US Department of Energy’s Estimating Appliance and Home Electronic Energy Use (2012).

• The appliance figures are nameplate maximums. Average demand changes as appliances cycle and their settings change.
• A load above the stated continuous power gets no figure.
• Motor starts use three times the largest selected motor’s watts, plus the other loads. This estimate is checked against stated peak power when available. Other loads are counted at their running watts.
• Inverter and battery losses are not counted. A field study of household backup power explains the gap.
• Solar recharge, reserves, and temperature changes are outside the calculation.