Very cool install thanks for posting, I have contemplated doing the exact same thing many times over the years.How abou that transformer picture - ever seen a #10 coming out of a load break elbow? Thats 2KV Pv wire, transformer is 2400, tapped down all the way to 2280, close enough. I was too cheap to buy custom transformers. Runs about 500 feet to where it Tees into another 1900 foot line which goes from the service pedestal and transformer to the house.
Its good to be an electrician sometimes.
Especially a step up to step down HV system on rural property. I have looked into a 1.5kV transformers and the PV wire before.
How did you make up the stress cones? Did you actually find ones that fit?
We run 7.2 kV underground once in a while but the local utility always makes up the stress cones. I know they have gotten easier but they can be a point of failure.