Solar power is booming, but actually building those sprawling solar farms is still a slow, heavy-lifting job. Workers have to pick up panels that weigh about 100 pounds each and place them onto frames by hand. A typical eight-person crew can manage around 800 panels in a day. That pace has become a real bottleneck as the solar energy build-out runs into a labor market challenge.
Gritt Robotics thinks it has a better way. The company uses off-the-shelf robotic arms and vehicles, controlled by AI software, to do the heavy work. The robots place each panel onto its frame with sub-millimeter accuracy.
The numbers are the easiest way to see the difference. With Gritt's system, that same eight-person crew can install between 3,000 and 4,000 solar panels per day. That is roughly four to five times the old rate.
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Co-founder and CEO Puneet Puri, who studied at Carnegie Mellon, calls what they are building a layer of "physical AI" - a kind of intelligence that can handle the messy, chaotic conditions of a construction site.
The robots do not just place panels either. They also collect data from sensors on the job. The founders imagine the system could warn crews about an open trench before a storm rolls in, or flag missing inventory. Over time, Gritt plans to add even more skills like fastening panels, drilling posts, and building mounting racks, and eventually tying rebar before concrete is poured.
The global push for clean energy is hitting a wall: not enough workers. There simply are not enough trained people to build all the solar plants that governments and utilities want. At the same time, AI has advanced far enough to let robots work outdoors, where lighting and terrain change every minute.
Puri explains the thinking this way: "Our thesis is that if we truly want to speed up construction, you need an intelligence which can work in the outdoor, chaotic environments of these construction sites, and it has to be generalizable enough that it can work in these varied environments."
Andrew Beebe, the Obvious Ventures partner who led the funding round, says Gritt's founders are the rare kind who can make technology work in the real world. "There are people who used to build rockets that went into space and had infinite budget for the smallest little part, and then there are people who know what it means to get into dirty, dull, and dangerous jobs and scale them like mad," he says. "These guys are in the second camp."
Gritt is still early.
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