High Voltage Charge Controller [RE-wrenches]

[matthew tritt]

Travis,

I believe you should put the inverter and batteries at around 250' from the
array, and use an RV MPPT controller.
Their MPPT really works as advertised, you cut down a bit on the ultra-long
DC run, and AC works quite well in longer runs. This way you don't need an
exotic Beta unit in your customers installation, you won't need to invest in
4/0 wire and your customer will still like you!

I have done this on a couple of systems and it works quite nicely.

Matt
----- Original Message -----
From: "Travis Creswell, Ozark Solar" <ozsolar at ipa.net>
To: "RE-wrenches" <RE-wrenches at topica.com>
Sent: Monday, August 26, 2002 7:37 PM
Subject: High Voltage Charge Controller [RE-wrenches]


> I am designing a job where the array is at least 700' from the house which
> is in heavy woods and the customer doesn't want to cut any trees down.
> Putting the inverters and batteries nearby to the array doesn't really
solve
> anything either since the system will be grid tied.  That means I would
need
> to have an AC run from the house to the inverter location then back to the
> house again. That's 1400' roundtrip.
>
> What I would really like is a MPPT charge controller that would let me run
> the array above 100 volts with 48 volts nominal output for the battery
bank.
>  I have heard of several custom made units but have never seen any.  Where
> can I get such a thing?
>
> Or maybe I need put the array on top of a 40' pole?  Anybody done anything
> like that?
>
> Thanks
> Travis Creswell
> Ozark Energy Services
>
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