What is the most important for the advancement of solar energy ?
A solar T-Shirt ?
https://steemit.com/steemhunt/@ikrahch/solar-shirt-the-shirt-produces-around-1w-of-electricity
A solar Desk ?
http://www.sensorica.co/home/what-we-do/projects/matrioshka-project
A solar 3 D Printer ?
Cheap solar panels ?
All of them ?
@askanything
What do you think ?
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