Single DC Source - Multiple Inverters [RE-wrenches]

[David Blecker]

Matt,

The single DC source into parallel WindyBoy inverters is Proven's recommended installation method.  You're right...the inverters are still not UL listed, but Wisconsin's new interconnection standards allows for non-UL equipment as long as it meets the functional requirements of UL especially for anti-islanding.  Also, the utility has the option to require certification or type testing.  

David

At 07:28 AM 9/17/2002 -0700, you wrote:
>David,
>
>Hard to say about the NEC or UL, but is this a method approved and
>recommended by SMA (or Proven)?
>Neither component in your mix is approved (yet) by UL, not that that means
>anything, but how will you get approval from the utility when using
>non-listed equipment??
>
>Matt

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