I agree. If you are looking to reduce cost, as you indicated, forget about inverting (small inverters and AC-DC converters are terrible inefficient).
A couple of other notes: - be sure to properly fuse everything. - don't undersize batteries or PV - in addition to others mentioned in this thread, check out http://windsun.com. Prices and service are great. Jason > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of John Hokenson > Sent: Sunday, October 19, 2003 3:11 PM > To: [EMAIL PROTECTED] > Subject: Re: [smartBridges] Solar Power not just back up > > > With the cost of the power (more batteries and solar panels) > this scheme is nuts...the best you can hope for is 70-80% > efficiency from the invertor, so you are throwing away 20% > there, plus the conversion in the power supplies for the > equipment....another 20% hit. Right off the bat you have > thrown away half your power. > > Pick equipment that will run off the 12V battery....this > includes the indoor SmartBridges, both Netgear and Linksys > make 12V switches, and as I recall Trango gear will run on > 12V if you keep the cat5 short. > > JH > ----- Original Message ----- > From: "Kevin Summers" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Saturday, October 18, 2003 7:21 PM > Subject: RE: [smartBridges] Solar Power not just back up > > > > > > Just be sure and add a fair margin for a little > > extra power reserve. The conversion from DC to AC > > and back to DC will probably consume a little juice. > > > > Kevin Summers > > KISTech Internet Services Inc. > > www.kistech.com > > > > > > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED] Behalf Of > Blazen Wireless > > > Sent: Saturday, October 18, 2003 5:14 PM > > > To: [EMAIL PROTECTED] > > > Subject: Re: [smartBridges] Solar Power not just back up > > > > > > > > > Rudolph, > > > > > > Someone posted (I believe Earl Camblell) this not to long > ago and is > about > > > the same thing I am about to do. Basically without have to track > > > down an invertor to step down or up all the voltages to > DC for your > > > particular equipment just buy one of those 400-1200 watt DC / AC > > > converters and > just > > > plug in a regular power strip and your done worrying about > > > converting.. Just plug all you AC plugs from your > equipment into the > > > power strip. You will have to calculate how much power > you going to > > > need as far as current > draw. > > > You don't want to use one batteries and a small panel per say and > > > your equipment is pulling faster then it can recharge the battery. > > > > > > 2 - SB AP Indoor units > $323.00 > > > 1 - 15 DBi Omni antenns $ > 96.00 > > > 1 - 19 DBi Panel antenna $ > 73.00 > > > 1 - 12 VDC 200 amp deep cycle marine battery $ 50.00 > > > 1 - 65 watt solar panel > > > $312.00 > > > 1 - 6 amp solar controller > > > $ 38.00 > > > 1 - R520 outdoor case to house equipment $ 48.00 > > > 2 - "N" to "N" pigtails 6 ft 1/2" heliax > $ 20.00 > > > 1 - RFLinx 500 mw Bidirectional amp $ 110.00 > > > 2 - Pigtails for amp to radio and amp to ant. $ 38.00 > > > 2 - u-bolts to hold case to tower > > > $ 2.00 > > > 1 - Tube of silicon seal > $ > > > 3.00 > > > 1 - 64' Rohn Tower > > > $600.00 > > > 1 - 4 yards cement > > > $400.00 > > > Misc. stuff ya gotta count.... > > > $100.00 > > > > > > Time... About 3-4 hours to take SB API units out of > plastic case and > > > assemble everything into the weather tight case. Software ... Air > > > Point Pro Outdoor (yes outdoor) v 1.4j9 in APIndoor units. > > > > > > Total (Approx) $2183.00 > > > > > > Here is a list of people that sell solar stuff as well > that someone > > > else posted I think it was Mark Koskenmaki > > > > > > > > > Electro-Comm's prices stagger the imagination. > > > > > > http://www.cosolar.com/ > > > > > > http://www.solar-electric.com/ > > > > > > http://www.discountpv.com/ > > > > > > http://www.altenergystore.com/ > > > > > > http://www.backwoodssolar.com/ > > > > > > Backwoods has been in business a long time. They're in Northern > Idaho, > > > and inspite of thier name and somewhat cheesy looking site, I > > > understand they are one of the better people in the business. > > > > > > > > > ----- Original Message ----- > > > From: "Rudolph Worrell" <[EMAIL PROTECTED]> > > > To: <[EMAIL PROTECTED]> > > > Sent: Saturday, October 18, 2003 12:05 PM > > > Subject: [smartBridges] Solar Power not just back up > > > > > > > > > I am thinking of how to cut cost in setting up and maintaining a > > > tower > and > > > to reduce prices I thought about using solar panels and a > battery to > > > run my AP's and switches. > > > > > > I have looked around and found 12V and 24V batteries but nothing > > > that would regulate and distribute power to run more than one > > > device. > > > > > > Does anyone here know where I can find this stuff? > Better yet, what > > > are you using for very isolated installations. (On the top of a > > > mountain) > > > > > > Rudy > > > > > > ----------ANNOUNCEMENT---------- > > > Don't forget to register for WISPCON IV > > > http://www.wispcon.info/us/wispcon-iv/wispcon-iv.htm > > > > > > The PART-15.ORG smartBridges Discussion List > > > To Join: mailto:[EMAIL PROTECTED] (in the body type subscribe > > > smartBridges <yournickname> To Remove: > mailto:[EMAIL PROTECTED] > > > (in the body type > unsubscribe > > > smartBridges) > > > Archives: http://archives.part-15.org > > > > > > > > > ----------ANNOUNCEMENT---------- > > > Don't forget to register for WISPCON IV > > > http://www.wispcon.info/us/wispcon-iv/wispcon-iv.htm > > > > > > The PART-15.ORG smartBridges Discussion List > > > To Join: mailto:[EMAIL PROTECTED] (in the body type subscribe > > > smartBridges <yournickname> To Remove: > mailto:[EMAIL PROTECTED] > > > (in the body type > unsubscribe smartBridges) > > > Archives: http://archives.part-15.org > > > > ----------ANNOUNCEMENT---------- > > Don't forget to register for WISPCON IV > > http://www.wispcon.info/us/wispcon-iv/wispcon-iv.htm > > > > The PART-15.ORG smartBridges Discussion List > > To Join: mailto:[EMAIL PROTECTED] (in the body type subscribe > smartBridges <yournickname> > > To Remove: mailto:[EMAIL PROTECTED] (in the body type unsubscribe > smartBridges) > > Archives: http://archives.part-15.org > > ----------ANNOUNCEMENT---------- > Don't forget to register for WISPCON IV > http://www.wispcon.info/us/wispcon-> iv/wispcon-iv.htm > > The > PART-15.ORG smartBridges Discussion > List > To Join: mailto:[EMAIL PROTECTED] (in the body type > subscribe smartBridges <yournickname> To Remove: mailto:[EMAIL PROTECTED] (in the body type unsubscribe smartBridges) Archives: http://archives.part-15.org ----------ANNOUNCEMENT---------- Don't forget to register for WISPCON IV http://www.wispcon.info/us/wispcon-iv/wispcon-iv.htm The PART-15.ORG smartBridges Discussion List To Join: mailto:[EMAIL PROTECTED] (in the body type subscribe smartBridges <yournickname> To Remove: mailto:[EMAIL PROTECTED] (in the body type unsubscribe smartBridges) Archives: http://archives.part-15.org
