Appliance
How many solar panels to run a chest freezer?
A chest freezer uses about 550 Wh a day. At the U.S. average of 4.98 sun hours that takes about 147 W of panels and a 0.68 kWh battery for one day.
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| Value | |
|---|---|
| Model used | Whirlpool WZC3209LW 9 cu ft chest freezer |
| Daily energy | 550 Wh |
| Basis | 22.9 W annual-average draw × 24 h |
| Panel watts (U.S. avg) | 147 W |
| Battery, 1 day | 0.68 kWh |
| Source | manufacturer / ENERGY STAR |
By state
| State | Panel watts |
|---|---|
| Arizona | 112 W |
| Colorado | 130 W |
| Wyoming | 137 W |
| Idaho | 140 W |
| Missouri | 146 W |
| South Dakota | 151 W |
| Montana | 154 W |
| New Jersey | 157 W |
| Maine | 161 W |
| Michigan | 164 W |
| Alaska | 231 W |
Questions
How many solar panels to run a chest freezer?
A chest freezer uses about 550 Wh a day. At the U.S. average of 4.98 sun hours that takes about 147 W of panels and a 0.68 kWh battery for one day.
Where does the daily energy come from?
22.9 W annual-average draw × 24 h. ENERGY STAR lists 201 kWh/year for this 9.0 cu ft manual-defrost chest freezer. Average draw is 22.9 W. Running and startup watts are not in the listing, so there is no run verdict.