Home Battery Installation in Washington, DC
Pepco customers averaged 33 minutes without power in 2024 — far below the US average of 11 hours, among the most reliable of the 58 metros we track. Sustained outages are rarer here than in most of the country, but storm and equipment-driven interruptions still happen — and homeowners with medical equipment, a home office, a well pump or a sump pump often want backup regardless of the average. Below are battery installers serving Washington and the rest of District of Columbia, ranked by reputation.
How often the power actually goes out in Washington
2024 · EIA data33 minutes
average time a Pepco customer spent without power
5%
of the US average of 11 hours — better than typical
0.3
power interruptions per customer that year
Excluding major event days — hurricanes, ice storms and the like — the figure drops to 26 minutes. The gap between the two is the part a standby generator or home battery is really for.
Source: US Energy Information Administration, Form 861 reliability filing for Potomac Electric Power Co (IEEE 1366 methodology). SAIDI measures the average minutes a customer was without power across the year. National reliability in 2024 was heavily affected by Hurricanes Beryl, Helene and Milton.
1.Revolution Solar
EliteSolar energy equipment supplier
94
GridFree Score
★★★★ 4.9 · 550
93
GridFree Score
★★★★ 4.8 · 554
93
GridFree Score
★★★★ 4.8 · 773
4.Real Mobile Repair - Historic Central Communication Washington DC
EliteMobile phone repair shop
91
GridFree Score
★★★★ 4.9 · 259
87
GridFree Score
★★★★ 4.9 · 90
6.Sol Systems
Top ratedSolar energy company
85
GridFree Score
★★★★ 4.3 · 294
7.Ipsun Solar
Top ratedSolar energy company
83
GridFree Score
★★★★ 4.8 · 43
8.The Home Depot
Top ratedHome improvement store
83
GridFree Score
★★★ 3.9 · 2538
79
GridFree Score
★★★★ 4.6 · 25
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Get listed →Frequently asked questions
How much does a home battery cost in Washington?
A 13.5 kWh home battery like the Tesla Powerwall 3 typically runs $12,000–$17,000 installed before the 30% federal tax credit, which brings the net cost to roughly $8,400–$11,900. Larger multi-battery systems scale from there.
Do I need a permit for a battery in Washington, DC?
Almost everywhere, yes. A home battery needs an electrical permit and must meet fire-code setbacks, and most states require the work be done by a licensed contractor. A reputable Washington installer pulls the permit for you — treat anyone who offers to skip it as a red flag, since unpermitted work surfaces at resale and can void insurance claims.
Who installs home batteries in Washington?
Licensed electrical and solar contractors handle home battery installs. Tesla, Enphase and FranklinWH each maintain certified-installer networks that include Washington-area contractors.
Why are outages common around Washington?
Pepco customers averaged 33 minutes without power in 2024 — far below the US average of 11 hours, among the most reliable of the 58 metros we track. Sustained outages are rarer here than in most of the country, but storm and equipment-driven interruptions still happen — and homeowners with medical equipment, a home office, a well pump or a sump pump often want backup regardless of the average.
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