I would not go DC for starters. I lived with a DC fridge for years and
would not wish that on anyone in the 21st century. Regular Energy Star
rated models are very close to the Sunfrost energy numbers, but are much
cheaper, are readily available, and can be serviced by regular appliance
repair folks.
On the module type/ price, we switch to much lower cost 60 cell modules
at around 300 watts these days, and use an MPPT controller. We're only
using 12 v modules for very, very small systems.
As far as small power packages, we've always built are own. Goal Zero is
more portable/ backpacking stuff; I have a fold up 5 w Module from Goal
zero that can charge a cell phone while camping. They're great for stuff
like that, but they're going to be way out of the budget for a permanent
mounted larger system.
Contact us offline, if you want, we could possibly help put together a
low cost package system for this application. Not many solar companies
want to mess with sub Kw systems these days, but there certainly is a
need, as you've found.
Thanks,
Ray Walters
Remote Solar
303 505-8760
On 12/8/18 4:27 PM, Peter Parrish wrote:
We are working with Turning Point Foundation a 501(c)3 to provide
off-grid power for their River Haven project which is providing
transitional housing for homeless folks in the Ventura CA area.
The site is truly off-grid and currently uses propane to power three
refrigerators and cook stoves. There is no space heating for the
single occupancy rooms as of yet. But that’s another problem.
We are looking to specify DC refrigerators and PV-powered battery
storage for the River Haven project. We are looking at the Goal Zero
Yeti-3000 system (3000 Whr, 500 full discharge cycles, to 80% residual
capacity) at a sale price of $2,400 but are finding the extra cost of
their PV modules quite steep. And looking at other 36-cell (12 volt)
modules, I can’t find anything for less than $1.10/W.
Since Goal Zero is looking at the recreational market, I thought that
there might be other companies with comparable product offerings that
are focusing on other markets like developing countries.
Any advice would be appreciated and you may contact us off-line.
Peter T. Parrish
SolarGnosis
1107 Fair Oaks Ave. Ste. 351
South Pasadena, CA 91030
(323) 839-6108
peter.parr...@solargnosis.com
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