2fer Solar Windows from lbl.gov: https://newscent
Post# of 22457
https://newscenter.lbl.gov/2018/01/22/scienti...=windowmat
*Incidentally, the business model of one of these solar window companies from Holland (multi-tasking smart-power windows) appears to be almost identical (with the exception of free-form designed windows) to the one proposed in the Freschfield biz model....so-much-so that I suspect it was inspired or copied from that source: http://www.physee.eu/