We reached out to a couple of suppliers. Here is the first quote from SolarCraft.net. Not a recommendation, just a data point for folks.
QUOTE
For your application requiring .5 amps @ 12 VDC, we recommend our 32", 2 battery, Uni-Pak system with the following features:
? 15"h x 16"w NEMA 4X sealed electronics compartment
? 13.5"h x 13.5"w Gold alodined 1/8" aluminum backplane
? Sun Saver Solar controller
? Solarcraft 100W DC-UPS
? Dinrail mounted circuit breakers and terminals for solar, battery and 3 loads
? NEMA 3R screen vented battery compartment
? 2) 110 Amp hour gell cell batteries which will provide about 16 days of autonomy, depending on area.
? Overall enclosure dimensions of 36"h x 16-1/2"w x 13-1/4"d
? Integrated flanges and stainless steel hardware for mounting to a 2” – 4” pipe or Rohn tower.
? The enclosure is constructed from 1/8" aluminum on the door and wrapper with 3/16" aluminum end caps; finished with a highly reflective white powder coating which keeps the batteries cooler; stainless steel hardware including lockable hasp latches; and, copper grounding lug.
? 85 W solar panel mounted to an array frame made from 2”x2”x1/4” aluminum angle, with integrated flanges and stainless steel hardware for mounting to a 2” – 4” pipe or Rohn tower.
? The system comes with a 5 year warranty and a 3 year prorated warranty on the battery.
? Everything will be powered up and tested prior to shipment.
? The price FOB Stafford, TX is $2500.00
? Delivery is 4-6 weeks after receipt of purchase order
Price is valid for 45 days
Notes:
*This system is good for any application with 3 peak sunlight hours or more.
*As a cost reducer, this system can be placed in a Nema # enclosure if requested.
Please note contact info below.
Solarcraft, Inc.
4007C Greenbriar Drive
Stafford, Texas 77477
877-340-1224 toll free
281-340-1224 local
281-340-1230 fax
Matt Mogannam
mmogannam@solarcraft.net