Roofing Company Develops Peel-and-Stick Solar Panels - an example of a technology that is making solar installation more cost effective.
The challenge is if you ever want to do maintenance.
An example of improved efficiency is in garbage collection. It used to be each Garbage truck had a couple big guys who would pick up the trash cans and dump them into the trash truck. Now it's one person who has a hydraulic claw, that fits up a special square garbage can with a hinged lid. My guess is the increase in efficiency is 3X with a minor increase in capital cost. I wonder how long till this type of efficiency increase happens in solar installations.
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