Charge Robotics (YC S21) announces Sunrise autonomous solar construction system

Re:Charge Robotics (YC S21) announces Sunrise autonomous sol... by ericd on Friday April 19, 2024 @05:25PM (#40092074)

Thanks for going through that! We used aerocompact, with 18” ground screws/anchors (a lot of them), and their engineering plans for our anticipated wind load didn’t even require all possible ground screw spots to be filled, so it seems like piles might not be strictly necessary?

With panels getting so much cheaper, is tracking necessary still? Maybe if land is at a premium, but I know the aerocompact commercial deployments don’t support tracking.

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Re:Charge Robotics (YC S21) announces Sunrise autonomous sol... by justicz on Friday April 19, 2024 @05:51PM (#40092316)

Fascinating! My initial thought is that this is going to be very soil dependent. Is this the system you were using? Was it ballasted? https://www.aerocompact.com/en-us/products/ground-mount

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Re:Charge Robotics (YC S21) announces Sunrise autonomous sol... by ericd on Friday April 19, 2024 @05:57PM (#40092364)

Yeah, we used the g20 south-facing ground mount, no ballast, about 40 18” ground screws for a 48 panel array (relatively small 108 cell panels). Soil is clay, for reference, not very rocky, so might be unusually well suited for the screws. Easy to drive with a socket wrench or impact wrench, 1” heads.

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