[RE-wrenches] backup without batteries

[Dave Click]

http://www.smainverted.com/2013/02/21/groundbreaking-new-feature-on-sunny-boy-tl-us-emergency-power-when-the-grid-fails/

On 2013/3/25 11:56, Nik Ponzio wrote:
> Forgive my senility. I recently read somewhere about development of
> grid-tie inverters without batteries that offer emergency power via a
> single 120V receptacle during grid outage (and sun.)
> Anyone seen anything on these? The brands mentioned were SMA & Mitsubishi.
>
> Thanks in advance.
>
> --
> Nicholas Ponzio
> Building Energy
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>
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