[RE-wrenches] Enphase M210-84-208-S12 Inverters Available?

Mon Aug 13 09:48:31 PDT 2012

All SunPower modules with NE in the model number are specifically listed to be positive or negative ground or ungrounded with transformerless inverters.

Thanks,
Will

__________________________________________________________________________________________
Will White
Regional Field Operations Manager - New England

Real Goods Solar
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Montpelier, VT 05602
Tel: (802) 223-7804
Cell: (802) 234-3167
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From: re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Nick Soleil
Sent: Monday, August 13, 2012 12:38 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Enphase M210-84-208-S12 Inverters Available?

HI Dave,

You are correct.  The Enphase Microinverters bond the DC positive to ground.

This is not an issue.  Most modules will operate normally with either; no ground bond, the DC negative bonded, or the DC positive bonded.

SunPower modules are the exception, with a requirement for being positively grounded.

Nick Soleil
On Mon, Aug 13, 2012 at 5:16 AM, Dave Click <daveclick at fsec.ucf.edu<mailto:daveclick at fsec.ucf.edu>> wrote:
Enphase already positive-grounds the module:

http://enphase.com/support/installation-wiring/
Q: The Enphase Microinverter manual states that the device is positively grounded. Don't most PV modules have negative grounds? Is this a problem for Enphase?
A: Enphase made the decision to positively ground its microinverters to minimize corrosion. Because Enphase Microinverters are positively grounded, they are compatible with both positively and negatively grounded modules.

On 2012/8/12 13:29, JRQ wrote:
Louis,

Can Enphase inverters be positively grounded? I wasn't aware that they
could. Otherwise you have an equipment mismatch problem that can't be
overcome under the listing of the modules and the inverters.

Jeffrey Quackenbush.

------------------------------------------------------------------------
*From:* Louis Woofenden <louis at woofenden.net<mailto:louis at woofenden.net>>
*To:* RE-wrenches <re-wrenches at lists.re-wrenches.org<mailto:re-wrenches at lists.re-wrenches.org>>
*Sent:* Tuesday, August 7, 2012 2:54 PM
*Subject:* [RE-wrenches] Enphase M210-84-208-S12 Inverters Available?

Hi Wrenches,

I'm trying to piece together an SunPower/Enphase job, and looking for up
to 25 Enphase M210-84-208-S12 inverters, which have been discontinued by
Enphase.

If you happen to have any available (or know someone who does), can you
please contact me off-list at louis at netzerosolar.net<mailto:louis at netzerosolar.net>
<mailto:louis at netzerosolar.net<mailto:louis at netzerosolar.net>>, or 520-237-5040<tel:520-237-5040>?

Thanks,

Louis Woofenden

Net Zero Solar, LLC
Tucson, AZ

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--

Cordially,

Nick Soleil

Field Applications Engineer

Enphase Energy

Mobile: (707) 321-2937

1420 North McDowell

Petaluma, CA 94954

www.enphase.com<http://www.enphaseenergy.com/>

P: (707) 763-4784 x7267

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E: nsoleil at enphaseenergy.com<mailto:nsoleil at enphaseenergy.com>

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