Adam Bernardi, who runs the renewables business line at Burns & McDonnell, described the problem in one sentence: solar construction is very repetitive work, lifting 80-pound modules day after day.
That 80-pound figure is the whole story. It is the ergonomic number behind utility-scale solar’s injury rate and its turnover rate, and it has resisted every process fix the industry has tried. On August 25 the Kansas City EPC firm announced a strategic partnership with Gritt, a robotics startup whose systems bolt onto construction equipment the contractor already owns.
Retrofit autonomy, aimed at solar
Gritt’s architectural bet is the same one the excavator-autonomy companies made: attach intelligence to standard machines instead of selling purpose-built ones. The systems handle placing and assembling solar arrays, pouring concrete and laying rebar. That concrete and rebar scope matters more than the headline, because it extends the same platform past solar into general civil work.
Gritt says its systems are built for outdoor sites where terrain, weather and conditions vary, as opposed to factory-floor robotics, and that they learn continuously from field operations. Puneet Puri, the company’s CEO and co-founder, frames it as humans and robots rather than humans or robots, which is the standard positioning in this segment and should be read as such.
Past pilot, short on numbers
The useful detail is that the two companies have been working together for a year, testing at multiple utility-scale solar sites in live construction conditions. That puts this past the demonstration stage most contech partnership announcements occupy.
What it doesn’t include is a single verifiable number. No deal value, no unit count, no named sites, no timeline. Every claim about safety, predictability and delivery speed is a claim by the two parties with no third-party measurement attached, and buyers should treat it that way. Gritt’s headcount, funding and headquarters aren’t established in any of the coverage either.
A crowded segment
Solar installation robotics is no longer a novelty. Xpanner makes devices for skid steers. AES runs the Maximo panel installation program, which completed 100 megawatts of robotic installation in California. Terabase has an automated installer, and SUNPURE ships module installers compatible with GameChange Solar trackers. What separates Gritt’s approach is the refusal to sell hardware the contractor has to finance separately.
The economics only work where the same motion repeats tens of thousands of times, which is why solar came first. Heavy civil has the same characteristic in places most people don’t think of as repetitive. The Navy just finished a seismic retrofit at Puget Sound Naval Shipyard that installed 600 anchors, each one twelve cables drilled through the dock wall and tensioned, working around the clock six days a week. That is 7,200 near-identical cable installations, and it is exactly the shape of work this technology is built for.
The number to watch isn’t modules per hour. It’s whether the second contractor buys in without a joint press release.
Sources: Solar Power World and PV Tech.