Doug,
Its Google that has wasted the most AWE R&D dollars, on just one narrow architecture. kPower is the most cost effective of any key player.
Here is the Skateboard EV, two days ago, charging via regen braking, with just a 1.8m2 toy kite. Its all COTS TRL9 components in USP3987987 fig5 config. Notice the kite is flying itself without a pilot or digital controls-
Thanks to Joe Faust for his help.
Please share any ST progress you may have. Complaining about kPower is great, but not enough by itself.