[RE-wrenches] Three-phase off-grid

[penobscotsolar at midmaine.com]

We are working on a 60 kw off grid system in Mexico and plan on using
Exeltech MX series inverters. They are truly innovative and very well
thought out. They do require a separate battery charger, but output very
clean AC in a multitude of battery configurations. They are rackable,
redundant and well made, and can be configured for up to 60 kw/three
phase. They are also hot swappable. Contact Dan at Exeltech for the
lowdown.

Daryl DeJoy
NABCEP Certified PV installer
Penobscot Solar Design




> Do they actually have 208v loads? If not, replace with 120/240 panel. Just
> a thought... Although a transformer would be required to use an existing
> 208v generator.
>
> Jason Szumlanski
>
> On Oct 21, 2011, at 11:17 AM, "Allan Sindelar"
> <allan at positiveenergysolar.com> wrote:
>
>> Wrenches,
>> We have been asked for a design for an off-grid system to reduce
>> generator runtime for a mountain resort. Initial projections
>> (consumption measurement results not yet available) suggest 15-20 kW of
>> PV and around 30 kW of inverter capacity. However, the generators and
>> existing wiring are three-phase 120/208.
>>
>> My assumption is that our only options are a set of six Sunny Islands,
>> or 9-12 Outback GVFX3648s. Are there any other options or approaches
>> that I'm missing?
>>
>> Thank you, Allan
>> --
>> Allan Sindelar
>> Allan at positiveenergysolar.com
>> NABCEP Certified Photovoltaic Installer
>> NABCEP Certified Technical Sales Professional
>> New Mexico EE98J Journeyman Electrician
>> Positive Energy, Inc.
>> 3201 Calle Marie
>> Santa Fe, New Mexico 87507
>> 505 424-1112
>> www.positiveenergysolar.com
>>
>>
>>
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