Ice Bear sounds about right, it's huge!
I doubt you will be saving any energy for cooling an AP system with that monster, the first model on the list you need at least an 11.5kVA power supply, which is huge. Run that and watch all the house lights in your street go dim
I didn't look up prices, but I would think they are very expensive compared to the cost of an AP system.Typical large chillers used for AP run at about 1.5kVA max. (2HP)
I did basically what that machine does for free, with a large chest freezer given to us, and accumulating lots of ice over a few weeks before spells of hot weather. I put up to 65kg of ice into my FT on hot days, but that's only enough for a degree or 2 of water cooling.
Ground source HPs are extremely expensive, I think a 1.5kW chiller with a decent EER/COP is the way to go for me, combined with the large thermal mass (13500 litres of water) and insulation. It takes over 15kWh to change my system water temperature by 1C. The problem with the big chest freezer I use is that it's only a couple of hundred watts of cooling, so it takes a few days to make enough ice for one day's worth of cooling, in my small system, which has about half the capacity.