Jeff — please read this physicist theory: https://fqxi.org/community/forum/topic/593

Sydney (and Australia generally) continues to lead heliostat innovation:

https://reneweconomy.com.au/vast-solar-plans-csp-gigafactory-for-heliostats-and-receivers-in-queensland/

https://www.pv-magazine-australia.com/2022/10/20/csp-specialist-vast-solar-plans-queensland-gigafactory/

https://www.core77.com/posts/117178/Tilt-Industrial-Designs-Impressive-One-Central-Park-Heliostat