A pile driver that finds the next pile, lines up, drives it plumb and logs it, while one operator watches from a remote. That just went on sale for solar and battery storage sites.
What happened
Xpanner, a construction automation company, launched the X1 Piling R6 on Oct. 26. It's built for utility-scale solar and BESS sites.
The main points, per Xpanner:
- The operator uploads the pile plan, walks the machine to the row and presses one button. The machine travels to each pile, aligns, hammers and holds it plumb.
- The operator supervises from a remote controller, and nobody stands next to the mast.
- It finds each pile spot with GNSS (high-accuracy satellite positioning) and sensors, which is meant to cut out separate survey and marking work.
- One machine handles tracker piles, short motor piles and BESS foundation piles, up to 23 ft long and 15.7 ft deep.
- Every pile's position, depth and plumb gets recorded and posted to a live project map in Xpanner's web dashboard.
- It's sold as a subscription that covers the machine, the automation kit, the dashboard and on-site support. Screw driving and pre-drilling are listed as future add-ons.
Xpanner's CEO, Henri Lee, said solar and BESS builders "can't find enough skilled crews to keep up". The company says its automation has already been used on more than 67 U.S. jobsites.
Why it matters to you
Pile driving sets the pace on a solar job. If the piles are off, every tracker row after them fights you.
If machines like this show up on your site, the job of the lead changes. Less time babysitting stakes and counting piles by hand. More time checking the machine's data, catching the pile it says is good but isn't, and keeping the next crew fed with work.
The catch: the log is only as good as the plan you loaded. A wrong coordinate or an old pile schedule gets driven perfectly, in the wrong place. And somebody still owns refusals, rocks and the piles that need a fix.
How to use it on the job
1. Check the plan before the button. Confirm the pile schedule revision, reveal heights and embedment before the machine moves. Xpanner says it reviews these during site setup. Do your own check too.
2. Spot check the log. Pull a few piles a day and measure plumb, reveal and location yourself. Compare to what the dashboard says. If they don't match, stop and find out why.
3. Keep a refusal list. Track every pile that didn't make depth or got flagged, with the location and what happened. That's the list your PM and the engineer will ask for.
4. Use AI to read the daily data. If your company allows it, paste the day's pile log into an approved AI tool:
I'm the lead on a solar pile crew. Here is today's pile log: [paste].
List every pile that is out of tolerance on plumb, depth or reveal.
Group them by row. Then write a 3-line update for my PM.
Don't guess at missing values. Flag them instead.
The bottom line
Automated pile driving for solar and BESS is now something you can buy. The machine drives the piles. The lead still owns the plan, the checks and the problems.
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