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Chaz Weatherford has a busy schedule. On a typical workday, the solar inspection technician for major U.S. rooftop solar company Freedom Forever drives to eight or nine homes across southern Arizona, checking to make sure their newly installed solar systems are safely configured and ready to turn on. Sometimes it’s hard to stay on schedule — especially when he has to wait around for hours for a city or county inspector to show up to review his work.
An employee of Lumina Solar uses his smartphone to conduct a remote video inspection of a rooftop solar installation in Baltimore County, Maryland. (Lumina Solar)
But at homes within the jurisdiction of Pima County, Arizona, Weatherford doesn’t have to wait very long. That’s because the county is one of a growing number doing remote virtual inspections, which cuts the time its inspectors need to approve home solar projects from hours to minutes.
Weatherford uses his smartphone camera to take photos and videos of everything on his inspection checklist: a home’s main electrical panel and the breakers within it, the disconnect switch, the electrical meter, and all the wires and conduits connecting them. Then, he sends those digital records to the county’s inspection office.
Soon after, “we get an email back saying if we’ve passed or not — and if not, there are instructions on how to fix it,” he said.
That’s good for Freedom Forever, for the homeowners who are installing solar, and for the county inspectors, he said.
Solar, battery, and home electrification advocates say the benefits of a virtual inspection make it a no-brainer policy. Any steps that can reduce the cost of rooftop solar are critical right now. Utility bills are rising nationwide, making home solar especially useful to households. But in the U.S., these systems are far more expensive than they are in most other countries. It doesn’t help that the Trump administration scrapped federal tax credits for rooftop solar last year.
Right now, just a few states have efficient permitting practices for rooftop solar and home battery projects, according to a recent report produced by advocacy nonprofits Environment America and Frontier Group.
While the report names streamlining installations via third-party and remote inspections as one of the top reforms, the approach is used by only a relative handful of the more than 40,000 county, city, and local permitting jurisdictions in the U.S.
Many of those jurisdictions allowing the remote reviews are in California, which was also the first state to pass an instant-solar-permitting mandate. Arizona, Florida, and Texas also have a significant number of jurisdictions that have adopted virtual inspections; New York state’s NY-Sun solar and storage subsidy program requires them as a follow-up to on-site local inspectors.
The number of jurisdictions using the technique is likely to grow. A half dozen states have advanced or are considering bills to reform solar and battery permitting this year, according to Permit Power, a nonprofit that advocates for permitting reform for residential clean energy. Several of those bills would impose mandates if passed, and some would offer state support for jurisdictions that adopt virtual inspection.
One such bill is already poised to become law. In Maryland, a bill to streamline solar and battery permitting was wrapped into a broader energy package that passed the state’s Democratic-controlled legislature this month and now awaits the signature of Gov. Wes Moore, a Democrat.
“You’re seeing a real movement across both plug-in solar and more traditional solar and batteries to knock down the barriers and red tape that get in the way of American families buying and installing those systems,” said Nick Josefowitz, CEO of Permit Power.
The old adage is as true for solar permitting as it is for anything else: Time is money.
That’s why remote virtual inspections can add up to big savings, according to an exhaustive report from the Interstate Renewable Energy Council, a nonprofit clean-energy advocacy group. Using technology for virtual inspections can reduce costs by more than $30,000 per inspector annually, according to IREC, cutting expenses on vehicles and fuel as well as enabling inspectors to do roughly three times as many inspections per day.
Daniel Ice, a deputy director at Pima County’s development services department, certainly sees the savings on the ground. His office started doing virtual inspections for residential air-conditioning installations more than a decade ago, and has gradually expanded it to more tasks.
“We’re a large county — our inspectors were driving up to 150 miles per day,” he said. “This saved on our vehicle and fuel costs — and we could do more inspections.”
Like most building inspection departments, Pima County has more work than it has employees to do it, Ice said. Spending less time on everyday home solar inspections “freed up the planners to work on more complicated projects.”
Permit Power and other advocates want Pima County to become the rule — not the exception.
Statewide bills like Maryland’s are a good start to making that happen, said Erin Kelly, vice president of residential operations at Lumina Solar, an installer based in the state.
Maryland’s legislation will require counties to adopt online solar permitting by mid-2027, and it includes requirements that counties that can’t meet five-day turnarounds for these permit applications by mid-2028 “must offer a remote inspection option that provides inspection within five business days of a request.”
A few Maryland counties already offer virtual inspections, which have “saved a ton of time, a lot of headaches,” Kelly said. That’s particularly useful for follow-up inspections, which installers can respond to by fixing identified problems and sending in video evidence on the same day. Other counties, by contrast, can take from a day to more than a month to schedule on-site inspections and follow-ups, she said.
Not all Maryland counties are happy about adopting virtual inspections or online solar permitting, however. The Maryland Association of Counties warned state lawmakers in a March letter that “a highly prescriptive state mandate could undermine local flexibility, strain budgets, and compromise safety safeguards.”
Carla Blackwell, who led Pima County’s adoption of virtual inspections and instant solar permitting as director of its development services department before retiring last year, understands those concerns.
“We always hated when the state legislature got involved and passed some sort of mandate,” she said. “If you want to get people on board, you have to get them involved and part of the process — both so that they understand and support it and so they don’t sabotage it in some aspect.”
Pima County started using these technologies out of necessity, she added. The 2008 real-estate market crash forced her department to lay off about two-thirds of its staff, forcing it to find ways to do more with fewer employees.
It took some work. The county had to upgrade its permit management software to handle the new digital inputs, for example. That might not be a welcome prospect for smaller permitting agencies, she said. “The minute you mention IT to a government department, they’re like, ‘Uh-oh, I don’t want to deal with those guys.’”
But once the software is in place and employees are trained in using it, virtual inspections can improve the quality of work being done, she said. “I actually spend more time with you on these remote field inspections than if I had to drive out, spend five minutes, and then drive to the next one.”
Creating digital records of the projects can also help inspectors catch errors that brief on-site inspections can miss, she noted. That’s backed up by IREC’s report, which cited multiple building department officials affirming the benefits of being able to review photos and videos to do quality checks.
That’s true for more than solar and battery installations, said Colleen Corrigan, sustainability and resilience policy manager at the nonprofit San Francisco Bay Area Planning and Urban Research Association (SPUR). Her group and Permit Power are co-sponsoring a state bill that would give California homeowners the option of requesting remote inspections for water heaters, heat pumps, and rooftop solar installations. SPUR is also supporting another bill that would streamline permitting for heat pumps and plug-in solar systems.
“Permitting and inspection delays are these quiet but significant barriers to climate progress,” Corrigan said. The bills SPUR supports are aimed at “removing the friction at these key choke points in electrification,” she said.
But they’re also “rooted in best practices in jurisdictions already doing automated permitting or virtual inspections,” she added, as is happening in at least 19 places statewide, ranging from cities like Los Angeles and San Diego to rural areas such as Placer County in the Sierra Nevada.
Gabe Armstrong, acting chief building official at Placer County’s Community Development Resource Agency, estimated that the agency is eliminating about 3,900 driving miles per year by using remote video inspections. It also offers them on the same day that projects are completed, which is convenient for contractors who don’t want to have to come back the next day just to meet an inspector.
Armstrong’s agency also retains the right to show up in person to check the work, which it does from time to time as part of a quality-control audit, he said. To ensure contractors aren’t misrepresenting their work, “we only do live video inspections,” he said. “We need to know we are at the right jobsite, not looking at some random photo.” If contractors aren’t being honest, “we’ll turn them into the state contractor licensing board — and we’ll ban them from the RVI program.”
Some projects, like new home builds, require on-site visits, he said. And inspectors will still come out in person if the contractor or property owner requests it. But for approved projects like solar panel systems and heating, cooling, and air-conditioning installations, “we have these really large monitors, and we’ll pull up the plans on one side, and we can zoom in and read all the notes — and we can also zoom in on the work being inspected.”
Using video taken from solar installers on rooftops also avoids having to send inspectors up there to check their work, which eliminates safety hazards, Armstrong added. As for contractors, “usually once we get someone doing it, they become a repeat customer,” he said. “Being able to pick the exact inspection time — think about how much money you’re saving.”
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