Laser inquiry [RE-wrenches]

[Doug Pratt]

> >Nobody in town deals with Siemens panels... it's all
> >those BP units around here. Yeah, they're really
> >pushing the "laser grooved buried grid" thing on the
> >BP-85 panel, but for $200(CN) over the BP-75, is it really
> >worth it?

Depends on what you're doing with those modules. Compare the specs between the BP 75
and 85.  Most of that extra 10 watts is expressed as higher voltage. If you're charging
batteries, you won't get a bit of it. If you're running a pump panel-direct, or doing
utility intertie without batteries, or running something else that's tracking the
modules at maximum power point, then you'll get the benefit of those extra watts.

Best regards,
Doug Pratt

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