We’ve said it here, and it’s been said elsewhere: lithium-ion batteries just don’t pencil out for backup power. The incumbent technologies, like diesel generators and lead-acid batteries, have a big lead in affordability for essentially the same service.
It was surprising, then, to hear Greg Smith, the senior technical trainer for battery-maker Sonnen, tell a crowd at Solar Power International that “the overwhelming portion of the systems we sell is for backup.”
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