Hi Carl, We too provided power to a home owner for an alarm system (and more) for a remote vacation cabin in the heart of meth. country several years ago. The cabin had previous wiring provisions for lighting, etc. on one 15A AC circuit, when occupied, so this is not a carbon copy of your requirements. My take away from this experience was to prohibit the alarm company from keeping their (traditional AC SLA) backup battery in place if you choose to use a flooded system and it is properly designed, as Jeff says, with no low power shutdown during the worst weather.
In this application, a local bell/horn also sounds during alarm conditions for much more than two minutes, as I remember. Wiser and more efficient next time, Bill Loesch Solar 1 - Saint Louis Solar ----- Original Message ----- From: "Carl Adams" <swingjun...@gmail.com> To: "RE-wrenches" <re-wrenches@lists.re-wrenches.org> Sent: Thursday, November 24, 2011 6:29 AM Subject: [RE-wrenches] Off Grid Alarm Communicator > Hello Wrenches, > > I had a request from a local alarm company for a small PV - Battery > system to power an alarm communicator system. The parameters given > are as follows > > 12 V DC power supply to the gear > standby load 28 mA - this is the majority of the time > Operation peak load 2A for 2 minutes - once per day for communications > check and as required for alarm condition report > > Have any of you provided such a system and if so could you share your > recommendations for a cost effective solution. > > With Regards > Carl Adams > SunRock Solar > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
