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It's not just the added challenges of digging in frozen ground, there are also concerns/challenges about the concrete curing properly when done in cold weather. But these installs don't have too much concrete work, so it's not too hard to use on-site warming if needed. They've done it on occasion in the past. And if Jamestown's concrete isn't already finished (can't tell under the snow), I wouldn't be surprised to see it done there.This early, I doubt the ground is frozen very far down. We have crews up north here digging to fix leaky water pipes all winter long... It's not difficult for power equipment, they just might need a bigger digger than the little toy one they've used in the summer.
I should add - the crew in western Canada that did all the way west from Winnipeg did both the ground/base prep and the hardware installs. Maybe it's the same down there, they'd rather not split the two tasks to different companies.
Even if the bases were precast and didn't need any additional concrete, they would still need to pour the new equipment pad for the cabinets and switchgear. Plus there are sometimes other things which necessitate on-site concrete work, like new curbs or disabled accessible walkways, etc. But like I said previously, it's not too much regardless of whether the pedestal bases are poured or not and other supercharger locations being built during winter in cold weather areas have used heating systems to manage the problem.I seem to recall a number of sites in that region (Fargo?) used precast concrete bases instead of pouring them.
those are a part of the supercharger install - been sitting there unpowered for months, no worries.It also looks like they've blocked 4 other EV chargers. with the equipment.