Your State's Grid
Backup Power for Virginia: Derechos, Ice and the Northern Virginia Sprawl
The 2012 derecho took out over a million Virginia customers in an hour. Add ice in the Piedmont, hurricane remnants in Tidewater and a Dominion grid stretched across the DC suburbs, and here is what actually works.
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What's in this article
The evening of 29 June 2012. A line of storms that had started in Iowa reached Northern Virginia with winds near 80 miles an hour, and within an hour over a million Dominion customers were dark — in the middle of a heat wave, with 911 systems down across the region. verify Some were out for a week.
That is the derecho, and Virginia gets one every few years. There is no warning beyond an afternoon's notice.
Why Virginia is its own problem
Derechos. Straight-line wind events that cross the whole state in hours. The 2012 one is the benchmark, and it hit in summer heat with no notice — the opposite of a hurricane, which you see coming for a week.
Ice in the Piedmont. Richmond, Charlottesville, the Valley — freezing rain brings trees down on lines across the region, and the outages are cold and grey.
Hurricane remnants in Tidewater. Hampton Roads, Norfolk, the Eastern Shore. Isabel in 2003 knocked out most of the region for days. verify Storms are usually weakened by the time they arrive, but the flooding and wind still bring lines down.
The DC suburbs. Fairfax, Loudoun, Prince William — enormous tree cover, a Dominion grid stretched thin across sprawl, and a very high share of households working from home who lose their income when the router dies.
Two utilities and many co-ops. Dominion in the metros and Tidewater, Appalachian Power in the southwest, and electric cooperatives across Southside and the Valley with slower restoration.
The derecho: no warning, summer heat
The derecho is the outage to plan for because it gives you nothing. A few hours of forecast, then a week of restoration in July.
Leave the unit plugged in permanently. That is the whole answer to "no warning." A unit at 100% when the wind hits is a plan. A unit at 40% in the closet is a wasted purchase.
Heat means fans. A window AC empties a 2,000Wh unit in hours. A box fan runs for a day and does more than the wattage suggests.
Post-derecho sky is clear. Panels earn their keep for the multi-day restoration.
| Appliance | EcoFlow DELTA 21,024 Wh | Anker SOLIX C10001,056 Wh | Bluetti AC200L2,048 Wh |
|---|---|---|---|
| Full-size refrigerator~150W running, cycles ~35% of the time | 17 hr | 17 hr | 33 hr |
| Box fan~75W running | 12 hr | 12 hr | 23 hr |
| Wi-Fi router + modem~20W running | 44 hr | 45 hr | 87 hr |
| Phones and a laptop~65W running, cycles ~50% of the time | 27 hr | 28 hr | 54 hr |
Northern Virginia: the home office
A large share of the DC suburbs works from home, and for those households the outage cost is a lost day of income, not a fridge of food.
A router and laptop draw about 100W together. A 1,000Wh unit covers a full working day. If a desktop is involved, switchover time matters — a unit without fast UPS pass-through lets the machine reboot when the grid drops.
And check whether your ISP stays up. Powered router, dead node three blocks away, no internet. The test that tells you.
What we'd buy, by situation
Fairfax, Loudoun, Arlington — working from home
A 1,000Wh unit with fast UPS switchover, plugged in permanently. The EcoFlow DELTA 2 or Anker SOLIX C1000. Covers a working day and a derecho night.
Richmond, the Piedmont — gas heat, ice risk
A 1,000Wh unit and a transfer switch. Wired to the furnace for winter, panels for the summer derecho.
Southside, the Valley, co-op territory, wells
2,000Wh class, panels, and the well-pump conversation. Co-op restoration is slower and a well pump changes the budget.
What not to buy in Virginia
A unit that sits in a closet. The derecho gives no warning. Plugged in or it is not a plan.
A battery for the AC. Summer outages here are hot. Fans, one room, curtains closed.
A generator without a CO alarm. Every derecho and every Isabel produces carbon monoxide deaths in garages. verify Buy the alarm in the same trip.
The free things, which matter most
Plug it in and leave it. The single most important thing for a no-warning outage.
Trim the oaks over your service drop. NoVA outages start with trees.
Register medical equipment with Dominion. Free, one form.
Know your ISP's uptime. Test it during the next short outage, before it matters.
The picks, in detail
Specs come from data/products.json, so they're the same everywhere on this site.
EcoFlow
EcoFlow DELTA 2
The one most people should buy. It refills fast enough that a short sunny break between storm bands actually matters.
- Capacity
- 1,024 Wh
- AC output
- 1,800W
- Weight
- 27 lb
What's good
- Wall recharge is genuinely quick — useful when power flickers back for an hour
- LiFePO4 cells, so it tolerates being left plugged in for years
- Six AC outlets means no daisy-chained power strips on the kitchen counter
- Add an extra battery later instead of buying a whole second unit
What's annoying
- The fan is audible in a quiet bedroom at night
- 1800W ceiling rules out most space heaters and hair dryers
- Expansion batteries cost nearly as much as the unit itself
Who this is wrong for
Anyone who needs to power a well pump, an electric water heater or a central AC. It will not start them, and it is not a whole-home unit.
Anker
Anker SOLIX C1000
The best-built 1kWh unit on the market, and the one that fits an RV bay without a shoehorn.
- Capacity
- 1,056 Wh
- AC output
- 1,800W
- Weight
- 28.44 lb
What's good
- The most compact 1kWh box here — it genuinely fits where others don't
- Anker's warranty service is the least painful in this category
- Full wall recharge in under an hour
- Quiet fan behaviour under moderate load
What's annoying
- Expansion battery caps you at about 2,112Wh and is expensive
- Fewer solar input options than EcoFlow
- Anker discounts less often, so you rarely catch a deep sale
Who this is wrong for
People who need to run more than 1800W. And it won't grow with you — expansion is limited.
Bluetti
Bluetti AC200L
Specs unverifiedA lot of battery for the money, with the port selection of a small workshop.
- Capacity
- 2,048 Wh
- AC output
- 2,400W
- Weight
- 61.9 lb
What's good
- Expandable, unlike most Bluetti units at this size
- A genuinely useful spread of ports including a 30A RV outlet
- Fast recharge for a 2kWh unit
What's annoying
- Shorter warranty than EcoFlow and Jackery offer
- Big and awkward to store
- Bluetti's US service turnaround has been inconsistent
Who this is wrong for
Small apartments. It's physically large and you will trip over it.
Questions people actually ask
What was the 2012 derecho and could it happen again?
How long do Dominion outages last?
What size backup for a Northern Virginia home?
Does Virginia get hurricanes?
Should I get solar panels in Virginia?
Who wrote this
Dhruvil Domadiya
Founder and editor, GreenCommuteGuide
I started GreenCommuteGuide because backup power is sold with numbers that sound impressive and mean very little — watt-hours on the box, surge ratings that turn out to be a boost mode, charge times quoted to 80% and printed as though they were full. I set the rules this site runs on: every spec is checked against the manufacturer's own documentation, anything we have not verified is marked as unverified on the page rather than quietly published, prices are never shown because they go stale, and every review names at least one product not to buy and who it is wrong for. Where I have not tested something myself, the page says so.
- · Sets and enforces the editorial standards on this site — unverified claims are flagged on the page, and the build fails if they are not
- · Specs are taken from manufacturers' own published documentation, never from retailer listings, and the source and date are recorded for each product
- · No payment is accepted for a rating, a ranking, or a positive verdict
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