[RE-wrenches] What inverter? (was Faulty PM-60 circuit board)

[maverick at mavericksolar.com]

Joel,

That is the fork in the road... To battery-backup or to Not Battery-backup... That is question.

If you decide to battery-backup, then the SW is still sweet until it just dies. Any day now...

You could switch to a Outback GVFX 3648 or XW 6048 and keep going battery-backup.

If the fork is grid tie only, then I suggest Enphase.

I have upgraded a customer via both routes. The Enphase was quite sweet using M190s with two panels in series to about 35 vmp.

http://www.mavericksolar.net/enphase/kk/en_kk.htm

I would not do both.


Thank you,

Maverick


Maverick Brown
BSEET, NABCEP Certified Solar PV Installer ®
President & CEO
Maverick Solar Enterprises, Inc.
Office:     512-919-4493
Cell:        512-460-9825

Sent from my HondaJet!

On Nov 9, 2011, at 4:21 PM, "Joel  Davidson" <joel.davidson at sbcglobal.net> wrote:

> Hello Ray,
> 
> He has had almost no utility power outages since he got his PV system in 2001. By going batteryless, his dc-to-ac conversion efficiency and kWh production should increase by over 15%. He has not decided if he wants to keep the SW4048 and float charge his batteries with the grid for emergency power.
> 
> Joel Davidson
> 
> ----- Original Message ----- From: "Ray Walters" <ray at solarray.com>
> To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
> Sent: Wednesday, November 09, 2011 12:59 PM
> Subject: Re: [RE-wrenches] What inverter? (was Faulty PM-60 circuit board)
> 
> 
>> He doesn't want battery backup?
>> 
>> Ray
>> 
>> On 11/9/2011 10:33 AM, Joel Davidson wrote:
>>> Wrenches,
>>> 
>>> After telling my customer to upgrade to an MPPT charge controller (thanks Ray Walters and John Blittersdorf), he decided to really optimize his PV array and retire his Trace SW4048 inverter. He has 48 Siemens SP75 modules (67.5 W DC PTC) that are ground mounted in full sun and easy to re-wire. With so many new batteryless grid-tie inverters on the market, this is a good time to ask this sage group with over 3,000 combined years of experience what inverter do you prefer?
>>> 
>>> Joel Davidson
>>> 
>>> ----- Original Message ----- From: "Joel Davidson" <joel.davidson at sbcglobal.net>
>>> To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
>>> Sent: Saturday, November 05, 2011 4:50 PM
>>> Subject: Faulty PM-60 circuit board
>>> 
>>> 
>>>> Wrenches,
>>>> 
>>>> My customer has a circa 2001 Pulse PC250 with a faulty PM-60 circuit board TC-750,  REV D2 (the microprocessor U1 has v2.5 and v1.01 written on a label on it). Does anyone repair or have replacements for PC250 PM-60 circuit boards? If not, what do you recommend? Thank you in advance for your help.
>>>> 
>>>> Joel Davidson
>>>> 
>>>> 
>>> 
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