Has anyone else found any more High Voltage inverters?
Seen this a few weeks ago,
https://www.youtube.com/@mikeg2321/videos. It's a 19.5 kW solar array, 72kW of batteries (DIY), Sandi off grid 25kW inverter (240 volt dc input) and 26kW charge controller (240v 100 amp). He says UL listed, passed local codes and currently running with DIY batteries. Very interesting setup, inverter wired so will not export to grid, but can use grid to assist powering his home if not enough solar or battery power. He has made a contact point with Sandi sales that will help you design your system. They have brokers in place to handle the purchasing of inverters, including shipping arrangements and import fees. You pay a single price and it will be delivered to your home. Mike mentioned his complete system was around $35,000. Doing the things he was qualified to do, but also hired a professional electrician to complete the wire hookups. I believe this was needed to pass local inspection codes. Don't recall exact location, but his setup is in the USA.
One unique feature was, Sandi sold him a package of controller boards for repairing said inverter. No idea about customer support. Note, Mike G. says he spent 4 years designing and purchasing equipment like transfer switches and shut off switching to handle high voltages. Some of the equipment would have been very expensive, but he waited for deals to appear and made good purchases.
Also look at
https://store.evtv.me/ to see the equipment EVTV MOTOR VERKS made for connecting a COMPLETE high voltage battery pack from a Tesla to work with a Sandi off grid inverter. EVTV had their Sandi inverter slightly modified to also control Enphase Micro Inverters (reduce output when batteries are fully charged).
Only read about the above setups, no first hand knowledge of its design capabilities.