When Winter Storm Billy hit Oklahoma City from 26 to 28 October 2020, it coated trees that still had their leaves in ice, dropped limbs and lines across the metro, and left more than 400,000 outages at its peak: over 209,000 OG&E customers and more than 10,000 PSO customers. The storm broke or destroyed more than 1,300 power poles, 1,050 crossarms, and 194 transformers, damage OG&E called some of the worst the city had seen since a major ice storm in December 2007. Ten days later, 40,000 homes and businesses were still dark; some households went 11 days without power. It landed on top of Oklahoma’s usual menu of spring tornadoes and summer straight-line winds. The Southwest Power Pool (SPP) grid that Oklahoma Gas & Electric and Public Service Company of Oklahoma sit inside can’t speed up that kind of pole-by-pole rebuild. If you’re already comparing Oklahoma solar quotes, it’s worth knowing a grid-tied rooftop system shuts off during a blackout (anti-islanding) unless you also have storage.
What an 11-day outage taught Oklahoma homeowners
The lesson wasn’t that any generator will do. It was that backup has to work when the store shelves are empty, the roads are bad, and the outage runs past a week. Oklahomans who ran out for gas generators during Billy spent the outage hunting for fuel and running engines outdoors in freezing rain, for days on end. A solar generator avoids most of that: there is no fuel to find, nothing to spill and no exhaust, so it can run indoors. The trade-off, covered below, is that it depends on stored charge and sun. Jackery’s units are LiFePO4, run near 30 decibels, and refill from the sun once the ice melts off the panels: which, after an ice storm, is usually within a day or two.
HomePower 3600 Plus specs and price at Jackery (3,584Wh, expandable)
How much solar generator you need in tornado alley
Start with the load that defines your outage. If you need to keep central air running through a summer tornado-season blackout in the heat, you need real output: the Solar Generator 5000 Plus delivers 5,040Wh and 7,200W with 120V and 240V, and expands to 60kWh, enough to carry an air conditioner plus the rest of the house.
Solar Generator 5000 Plus specs and price at Jackery (7,200W, 120V/240V)
Most Oklahoma homes that want to stay comfortable and keep the essentials on land on the HomePower 3600 Plus: 3,584Wh, 3,600W, expandable to 21kWh, and able to tie into your circuits through a transfer switch so a window unit, fridge, and lights all keep running through a restoration measured in days, not hours.
If your goal is simply protecting the fridge, phones, and Wi-Fi through a shorter ice-storm outage, the HomePower 3000 (about 3,072Wh, 3,600W) covers essentials for one to two days and ships with panels to recharge mid-outage: the lower-priced option for a smaller home or a tighter budget.
Current price of the HomePower 3000 at Jackery (panels included)
What Oklahoma’s loads actually cost in energy
| Load | Typical draw | Energy per day |
|---|---|---|
| Fridge/freezer | ~150W running (cycling) | ~1,200Wh |
| Window AC unit | ~900 to 1,200W running | ~4,000 to 6,000Wh |
| Central AC (5000 Plus, 240V) | ~3,000 to 3,500W running | ~10,000Wh+ |
| Gas furnace blower + ignition | ~400 to 600W while running | ~2,500 to 4,000Wh in ice-storm cold |
| Wi-Fi router | ~10W | ~240Wh |
| LED lights (ten bulbs) | ~50W | ~300Wh (6 hrs) |
| Phone and laptop charging | ~20 to 60W | ~150 to 250Wh |
Fridge, Wi-Fi, lights, and phones alone run about 1,900Wh a day: well within a HomePower 3000’s reach for a day or two between charges. Add a window AC in tornado season or a furnace blower after an ice storm and the day climbs past 5,000Wh, which is where the 3600 Plus’s 21kWh expansion earns its keep over an 11-day restoration.
| Unit | Capacity / output | Best for in Oklahoma | Retailer link |
|---|---|---|---|
| HomePower 3000 | 3,072Wh · 3,600W · panels included | Fridge, Wi-Fi, and lights for 1 to 2 days on a smaller budget | Check the price |
| HomePower 3600 Plus | 3,584Wh · 3,600W · to 21kWh | Window AC or furnace blower through a multi-day restoration | Check the price |
| Solar Generator 5000 Plus | 5,040Wh · 7,200W · 120V/240V · to 60kWh | Central air conditioning in tornado-season heat | Check the price |
Battery versus gas generator through an ice-storm week
A gas generator runs at 60 to 90 decibels, needs fuel you have to store or hunt for, and vents carbon monoxide that’s deadly indoors, so it lives outside, in the ice that caused the outage in the first place. A Jackery LiFePO4 station runs near 30 decibels, produces zero exhaust, and can run inside with the doors shut. Over an 11-day restoration like Billy, that also means no trips out for gas on roads that may still be closed.
- Indoor safety and carbon monoxide. A battery vents nothing and runs indoors. A gas generator sits outside, away from windows, on ice-covered ground.
- Noise. About 30 decibels versus 60 to 90, for as many nights as the restoration takes.
- Fuel in a long outage. Gasoline has to be found and stored; after Billy, stations across the metro sold out for days. The battery recharges free from its own panels once the ice clears.
- Maintenance. Oil, carburetor, and monthly test runs for gas. A monthly top-up for the battery.
- What gas still does better. A very long outage with no sun, and whole-house 240V at a lower upfront cost.
Prepare before the next ice storm or twister
Shopping with an ice storm in the forecast is hard, because every store in the metro can sell out, the way it did during Billy. A unit that is set up and charged ahead of time is ready when the next system spins up.
Current Jackery prices and lineup at Jackery
Keep reading: Oklahoma solar incentives & costs · Best solar generators for home backup (Kansas) · Best solar generators for home backup (Texas) · Solar generator vs gas generator