How much does it cost to charge a Cadillac Lyriq in Washington?

Washington's 12-month average rate, 14.2¢/kWh, is 21% below the U.S. average of 18.0¢/kWh, which saves $1.42 per 100 miles compared with the national rate.

Rates in Washington are rising quickly: the latest 12-month average is 11.9% higher than in the 12 months before, adding $68 a year to the cost of charging the Cadillac Lyriq.

Over the last 24 months Washington was cheapest in winter and most expensive in spring: January 2025 at 11.8¢/kWh and May 2026 at 14.9¢/kWh, which moves the Cadillac Lyriq's monthly charging cost between $44 and $56. The latest published month, August 2026, came in at 14.6¢/kWh, 3% above the 12-month average.

Of the 5 states covered so far, Washington is the cheapest place to charge the Cadillac Lyriq; California is the most expensive at $11.91 per 100 miles.

Among the 10 EVs on OutletBill, the Cadillac Lyriq is the 8th cheapest to charge per mile in Washington. The cheapest is the Tesla Model 3 at $3.45 per 100 miles; the most expensive is the Rivian R1S at $6.09.

Of the 5 small SUVs on OutletBill, the Cadillac Lyriq costs the most to charge in Washington; the Tesla Model Y does the same 100 miles for $3.90.

At 36.8 kWh per 100 miles, the 2027 Cadillac Lyriq RWD (11 kW charger) uses more energy than most 2027 EVs: 60% of the 171 versions EPA has tested are more efficient.

EPA rates the 2027 Lyriq RWD (11 kW charger) at the same efficiency as the 2026 version, 36.8 kWh per 100 miles, with the same 326-mile range.

Across all 6 trims of the 2027 Lyriq, cost per 100 miles in Washington ranges from $5.23 for the RWD (11 kW charger) to $6.01 for the V-Series AWD (19 kW charger), a difference of $96 a year at 1,016 miles a month.

EPA estimates 11 hours to charge the Lyriq RWD (11 kW charger) from empty on a 240-volt Level 2 home charger, longer than a typical night, though a full charge is rarely needed. At 1,016 miles a month (about 33 miles a day), a day's driving takes roughly 1 hour on a Level 2 charger.

Electricity would have to cost more than 59.2¢/kWh, 4.2 times Washington's rate, before the Cadillac Lyriq cost more per mile than the 2026 Cadillac XT5 FWD. Put the other way, gas would have to fall below $1.25 a gallon.

Gas costs use EIA's Washington retail average for premium gasoline ($5.23 a gallon over the same 12 months, 14% above the U.S. average of $4.58) and the 2026 Cadillac XT5 FWD's EPA rating of 24 mpg combined. EPA lists premium fuel for the 2026 Cadillac XT5 FWD, so the comparison uses premium prices.