Along the I-80 corridor between Cheyenne and Laramie, the wind doesn’t just blow: it closes the interstate, tips trucks, and drives ground blizzards that reduce visibility to nothing. The same hurricane-force gusts take down power lines, and homes around Casper and across the high plains can go dark in bitter cold while crews wait for conditions to let them work. Wyoming isn’t inside an RTO like SPP or MISO; it runs on the Western grid through Rocky Mountain Power and Black Hills Energy. If you’re comparing Wyoming solar quotes, the detail installers skip is that a grid-tied rooftop system shuts off during an outage (anti-islanding) unless you’ve paired it with storage: that’s the gap you fill for real backup.
For most Wyoming homes, the Jackery Solar Generator HomePower 3000 is the most practical fit. With about 3,072Wh of cold-tolerant LiFePO4 storage and 3,600W of output, it keeps the fridge, lights, Wi-Fi, and phones running for one to two days of a wind or blizzard outage, silently, with zero exhaust, from inside a closed-up house. Wyoming’s strong high-plains sun refills it fast through the included panels once the storm passes.
Current price of the HomePower 3000 at Jackery
How to keep power on during a Wyoming outage
The reliable approach in Wyoming isn’t powering the whole house: it’s keeping roughly 300W of essentials alive until crews get through:
- Size your real loads. A fridge draws about 150W, ten LED bulbs roughly 50W together, a router near 10W, and phone charging about 20W. That core is what keeps food safe and you reachable.
- Cover them with a battery station, not an engine. A solar generator with around 3kWh of storage, like the HomePower 3000 above, runs those essentials for one to two days, indoors, at about 30 decibels, with no carbon monoxide. A gas generator has to sit outside in the same wind that caused the outage, and someone has to go refuel it.
- Recharge from the sun mid-outage. Wyoming’s solar resource is among the best in the country, above 5.0 kWh/m2/day around Cheyenne and Laramie, so the included folding panels can refill the battery each day the sky is clear, stretching a two-day unit across a longer wait.
- Keep it topped off between storms. Charge from a wall outlet when a high-wind warning or winter storm watch is issued, and decide in advance which loads plug in first.
Wind, winter storms, and a rural grid
Other states plan around ice or heat; Wyoming plans around wind, and around distance. Sustained gusts fatigue and snap lines along the I-80 corridor, ground blizzards near Elk Mountain close the interstate that repair crews would use, and an Arctic outbreak can hold the state below zero for days while lines are still down. Off the interstates the problem compounds: Wyoming is the least densely populated state in the lower 48, so Rocky Mountain Power, Black Hills Energy, and the rural electric co-ops that serve ranch country maintain some of the longest line-miles per customer anywhere. A downed feeder near a small town or a ranch outside Casper can sit at the end of the repair queue until roads reopen, which is the wait a charged home battery is meant to cover. A battery station also avoids running a gas generator outdoors in that wind.
What you actually need to keep on
Most homes overestimate this. A fridge runs about 150W, ten LED bulbs roughly 50W together, a router near 10W, and phone charging about 20W: near 300W of steady draw to keep the core of a home going. The Solar Generator HomePower 3000 (about 3,072Wh, 3,600W) carries that for one to two days and comes with panels to recharge while the grid is down. Wyoming’s strong solar resource means those panels refill fast the moment the sky clears.
Current price of the HomePower 3000 at Jackery (panels included)
For a larger home or a longer wait
To run a furnace blower and heavier loads through a longer cold-snap outage, the Solar Generator 5000 Plus steps up to 5,040Wh and 7,200W with both 120V and 240V, expandable to 60kWh.
Solar Generator 5000 Plus at Jackery: 7,200W, 120V/240V
Whichever option you choose, set it up before a high-wind warning is in the forecast. Keep it charged between systems and decide ahead which loads you’ll plug in first.
Jackery's full home backup lineup and current prices
Keep reading: Wyoming solar incentives & costs · How to keep power during a South Dakota outage · How to keep power during a Montana outage