In short: Olympia has about 56,300 people and sits in Thurston County. Puget Sound Energy Inc, PUD No 1 of Grays Harbor County and PUD No 1 of Lewis County serves different parts of Thurston County, so your utility depends on your address; their 2024 home averages range from 9.48¢ to 14.63¢ per kWh (EIA). FEMA rates Thurston County landslides “relatively high”. Rooftop solar here makes roughly 1,000 kWh a year per kW of panels by our estimate, which is on the modest side, so price and incentives matter more.
This page covers what is local to Olympia: its utility, outage records, sunshine, weather risks and charging. Statewide rules such as net metering, incentives and electrician licensing are in our Washington energy guide.
Olympia at a glance
- Place: Olympia, Thurston County, Washington; about 56,271 residents (Census Bureau estimate, July 2024).
- Utility: Puget Sound Energy Inc (investor-owned). Homes paid an average 14.63¢ per kWh in 2024 (EIA-861); the average customer lost 203 minutes of power on normal days and 1,196 counting major storms, with 1.2 interruptions a year (utility-wide, not just Olympia).
- Utility: PUD No 1 of Grays Harbor County (public power district). Homes paid an average 12.52¢ per kWh in 2024 (EIA-861); the average customer lost 202 minutes of power on normal days and 471 counting major storms, with 1.0 interruptions a year (utility-wide, not just Olympia).
- Utility: PUD No 1 of Lewis County (public power district). Homes paid an average 9.48¢ per kWh in 2024 (EIA-861); the average customer lost 605 minutes of power on normal days and 722 counting major storms, with 3.3 interruptions a year (utility-wide, not just Olympia).
- Sun: 3.42 kWh per square meter per day on average, from 0.85 in December to 6.33 in July (NASA POWER). Our rough estimate: about 1,000 kWh a year per kW of panels.
- Climate: about 100 cooling degree-days and 5,430 heating degree-days a year (base 65°F, NASA POWER), so heating and cooling both matter.
- Top hazards in Thurston County: landslides “relatively high”, earthquakes “relatively high” and volcanic activity “relatively moderate” (FEMA National Risk Index; overall county risk rated “relatively high”).
- Public charging: 93 ports at 35 locations in Olympia, 17 of them DC fast (AFDC, October 20, 2026).
Your utility and what it means
Puget Sound Energy Inc is an investor-owned utility and served about 1,091,599 home customers in 2024; its 14.63¢ average was close to the 14.71¢ statewide average for July 2026. PUD No 1 of Grays Harbor County is a public power district utility and served about 39,881 home customers in 2024; its 12.52¢ average was below the 14.71¢ statewide average for July 2026. PUD No 1 of Lewis County is a public power district utility and served about 29,417 home customers in 2024; its 9.48¢ average was below the 14.71¢ statewide average for July 2026. Those are utility-wide averages, not a quote for your address; your own bill is the real number.
For reliability, PUD No 1 of Lewis County reported 605 minutes per customer without major storms in 2024, more than the statewide figure of 159 (EIA-861). Utility-wide numbers hide a lot: a home at the end of a long rural line usually has more outages than the average.
Net metering, export rates and incentives are set at state level and by each utility. Start with the Washington guide and then ask your utility for its current interconnection steps before you sign anything.
Backup power in Olympia
- Earthquakes (relatively high): Earthquake risk is mainly about secure mounting and gas shut-off for generators; ask the installer to follow local seismic requirements.
- Short outages: a portable power station covers phones, Wi-Fi, a CPAP and lights; a home battery switches over automatically.
Size your setup with the generator sizing tool and the battery backup calculator, and compare options in backup power. Generator safety (CPSC): outdoors only, at least 20 feet from the house, exhaust away from doors and windows, never in a garage, and battery-powered carbon monoxide alarms inside. A licensed electrician should install any transfer switch, with a permit; see generator installation.
Solar in Olympia
By our rough estimate each kW of panels makes about 1,000 kWh a year in Olympia (NASA sunshine data times 365 days times 0.80 for system losses). Valued at Puget Sound Energy Inc’s 2024 average of 14.63¢, that is about $146 a year per kW if all of it offsets your own use (an estimate, not a promise). Production swings with the seasons: July is the sunniest month at 6.33 and December the dimmest at 0.85, a 7.4-to-1 gap, so a battery or a bigger system helps in winter.
Check your own roof with the solar potential tool, see solar costs and net metering vs net billing, and read the steps in solar installation.
Batteries and EV charging
A home battery earns its place when outages are frequent, when your utility pays little for exported solar, or when evening prices are high; compare in home batteries and battery costs. Olympia has 93 public charging ports in the federal station list including 17 DC fast, but home charging is cheaper and easier: see the EV charging cost calculator and EV charger installation.
Drive on another fuel? See every alternative fuel station in Olympia: hydrogen, propane, natural gas, E85 ethanol, biodiesel and renewable diesel.
Permits and inspections
Solar, generator transfer switches and EV chargers normally need an electrical permit from the Olympia building or permitting department, or from Thurston County if you live outside city limits, and often a utility interconnection approval. We have not verified a local permit page for Olympia, so check the city and county websites or ask your electrician, who will know the process. Hire only a licensed electrician or installer; the Washington guide lists the state licensing rules.
Nearby guides
More local guides: Lacey, Lakewood, Tacoma and Federal Way, or the whole Washington energy guide.
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Olympia energy FAQ
Who is my electric company in Olympia?
Puget Sound Energy Inc, PUD No 1 of Grays Harbor County and PUD No 1 of Lewis County all serve parts of Thurston County. Which one serves you depends on your street, so check the top of your bill. Their 2024 home price averages differ (Puget Sound Energy Inc 14.63¢, PUD No 1 of Grays Harbor County 12.52¢, PUD No 1 of Lewis County 9.48¢) so it matters for solar math.
How much power will solar make in Olympia?
About 1,000 kWh a year per kW of panels by our estimate, so a 6 kW system would make roughly 6,000 kWh. Shade, roof direction and tilt change this; run your address through the solar potential tool for a better number.
Do I need a permit for solar or a generator in Olympia?
Almost always an electrical permit for a transfer switch, solar or an EV charger, issued by the city or county where you live. Your licensed electrician or installer normally pulls it. Never connect a generator to your house wiring without a transfer switch.
Sources: EIA Form 861 (2024) for utility prices and outages; NASA POWER climatology (2001 to 2025) for sun and degree-days; FEMA National Risk Index for county hazards; AFDC station locator for public charging; Census Bureau for population. Estimates are ours and are not promises; see our editorial policy. Prices and programs change, so check each program page.