Washington made solar permits faster. Most cities complied.

What the law actually changed

Three plain things sit in the law. It sets a fixed deadline for a city or county to approve or deny a simple residential solar permit, it caps and standardizes the fee so the same rooftop does not cost four times as much one county over, and it pushes jurisdictions toward an over-the-counter or online permit for systems that meet a standard checklist. The exact day counts and fee caps are written into the statute, and the state legislature posts the current text, so check the figure before you argue with a counter clerk.

Behind the paperwork sits a free federal tool. SolarAPP+ (Solar Automated Permit Processing, built by the National Renewable Energy Laboratory) lets a city issue a code compliant residential solar permit online, almost instantly, once an installer answers a standardized set of questions. A city does not have to use it, but the ones that adopted it tend to be the ones meeting the new deadlines without hiring more staff.

Who moved, and who still lags

Most of Washington does not run its own electrical permit at all. The Department of Labor and Industries (the state agency known as L&I) inspects electrical work across much of the state, so a rooftop array usually needs both a building permit from the city and a separate electrical permit from L&I. That split is the first thing to understand, because a fast city permit does not help if the electrical inspection is the holdup, and the reverse is just as true.

Cities that run their own utilities and their own permitting, Seattle and Tacoma among them, are their own case. Seattle City Light and Tacoma Power handle interconnection (the step where the utility agrees to let your system feed power back onto its wires) on their own schedules, so a reader there should expect the city process and the utility process to be two separate lines to track. Smaller towns in the Columbia Basin and along the southwest Cascade slopes vary widely, and the honest answer on any single one is that it depends on whether the local office has updated its forms.

If your city is slow

If the deadline passes and your installer is still waiting, start at the permit office and ask, in writing, for the statutory review timeline and the date your complete application was received. A dated, complete application is what starts the clock, and 'complete' is where most disputes actually live, so get the city to confirm in writing what, if anything, it still needs from you.

Past that, the path is less tidy than anyone would like. The state energy office at the Department of Commerce tracks solar permitting and is a reasonable place to ask what recourse the law gives you, and the legislature's own bill pages can point you to the enforcement section. This desk will say plainly that the statute is stronger on setting deadlines than on punishing a city that misses one, so your real leverage is usually a complete application, a clean paper trail, and a polite, specific reminder of the law.

Worth watching this month

1. Whether your own city has posted an updated residential solar permit checklist or adopted SolarAPP+, which you can check on the city permit page or the SolarAPP+ adoption map.

2. Any quiet guidance update from the Department of Commerce State Energy Office on how the permitting law is being applied, which tends to appear without a hearing.

3. L&I electrical permit and inspection scheduling in your county, since fall storm season on both sides of the Cascades can slow inspector travel and push dates.

4. Any net metering or interconnection rule activity at the Utilities and Transportation Commission, since the value of what your panels send back is set separately from the permit.

5. The 2045 clean electricity deadline under the Clean Energy Transformation Act, routine background rather than news this month, but the reason rooftop rules keep getting this much attention.