[RE-wrenches] High-power MPPT/Charge Controllers?

[maverick at mavericksolar.com]

Wow!

The most I have in one Outback install is 8 MX60s and 8 VFX3648s.

Overall the customer has been happy with the performance and the stacking power save feature helps with idle power draw. 

As for the OPs request, the most PV still remains to be about 5000 watts gross power per controller (80A x 50V / 0.80), even if they slice it up as high voltage or not high voltage type controller. 

Another curious idea is the cost per volt when comparing 150V input, 80A Output controllers to the new high voltage input controllers. That cost consideration spreadsheet is still under construction.

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 19, 2011, at 10:20 AM, Darryl Thayer <daryl_solar at yahoo.com> wrote:

> Hi
> I have a system in operation since 2003 using 13 paralleled Outback MX 60 CC and I have measured over 600 Amps at 48 Volts.on the common bus.  Outback and I replaced the fans in the MX 60s but we have had no failures.  This power is converted to 60 hZ using 12 Outback inverters, I have had an inverter trip off on the DC side just the other day and I will check it out this comming week but no problems.
> DT
> 
> From: "Larry Crutcher, Starlight Solar Power Systems" <larry at starlightsolar.com>
> To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
> Sent: Friday, November 18, 2011 12:35 PM
> Subject: Re: [RE-wrenches] High-power MPPT/Charge Controllers?
> Sounds like a project for Sunny Island and the Boy's.
> 
> Larry Crutcher
> Starlight Solar Power Systems
> 
> 
> On Nov 18, 2011, at 10:49 AM, Exeltech wrote:
>> Need info on MPPT/charge controllers able to output up to 500A at 48Vdc.
>> High-voltage DC input (up to 300Vdc) preferred.  Units will connect to a
>> 20-24 kW PV array and 150 kW-h battery for a large off-grid system.
>> Not locked into 48Vdc.  Can go up to 108Vdc (nominal) if needed.
>> 
>> Any such CC units available?
>> 
>> If not, what's been the collective Wrench experience in paralleling multiple
>> controllers of whatever max output amperage exists on the market?  I realize
>> a paralleled configuration of this nature would entail multiple separate arrays
>> in use on the input.  That won't be a problem.  Just need to be able to feed
>> the common battery bank.
>> 
>> Thanks.
>> 
>> Dan
>> 
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