Given the usual enthusiasm most of us have for Tesla innovations, including myself, I thought it wise to remind ourselves of past events. These two are illustrative of excelelnt reasons to tewmper our enthusiasm from time to time:
The link below is to a 2009 article celebrating teh new solar tiles from Solé Power together with US Tile (only $50 per sq ft installed:
Sole Power Tile Makes Adding Solar Easy
The other link is to the 2016 shutdown of DOW Powerhouse:
Dow Chemical Sheds Its Solar Shingle Business
both of these, among so many others, worked but could not overcome impediments.
We can argue that Tesla will beat the odds because they have already done so several times. Elon did it with SpaceX and PayPal.
FWIW, I bet against PayPal when I advised a couple major banks that they could not surmount the settlement issue.
I wanted SpaceX to succeed but i though reusability was a pipe dream.
Many years before my employer counseled a major electronics firm that handheld calculators had no future because slide rules were faster and only engineers would want them anyway. Luckily I was not personally part of that stupidity.
My humility of the moment is not discouraging me from TSLA, but it does cause me to raise my discount rate. It also causes me to reconsider solar roof and Tesla Semi expectations.
I remain convinced of the massive movement towards distributed storage with utilities, companies and individuals. That is not the same as expecting to make money in the process.
Another person here PMed me a serious flamer a few hours ago. he seemed to want it to be private so I'll not quote him. Frankly, I would have expected him to do it publicly because we all need contrary views to keep us honest. He had some good points regarding accounting, although I completely disagree with his conclusions.
For all our sakes we need to be certain that we do not shut out contrary views. As for me, I appreciate a challenge. I still will not ever be a pushover for sloppy thought nor weak logic, at least as far as i can discern such. It is wise for others to treat me just as I do them.
I have spent much of my life living in rigid and intolerant societies. I hope TMC never succumbs to groupthink.