Randy, We installed fronius inverters outdoors in Durango, CO. I did not do the designs for these systems, however they were installed in December, and operated just fine throughout a very burly winter. Hope this helps. You may want to contact Allan Ross at Bland Solar as he did the designs for that system. Hope all is well at Positive Energy this summer...say hello to the crew for me........
Jeff Blick PV installer Sunlight Solar Inc. 4 NW Franklin Bend, OR 97701 direct: 541-306-4196 fax: 541-322-1911 [EMAIL PROTECTED] www.sunlightsolar.com -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Thursday, August 21, 2008 8:51 PM To: [email protected] Subject: RE-wrenches Digest, Vol 1, Issue 76 Send RE-wrenches mailing list submissions to [email protected] To subscribe or unsubscribe via the World Wide Web, visit http://lists.re-wrenches.org/listinfo.cgi/re-wrenches-re-wrenches.org or, via email, send a message with subject or body 'help' to [EMAIL PROTECTED] You can reach the person managing the list at [EMAIL PROTECTED] When replying, please edit your Subject line so it is more specific than "Re: Contents of RE-wrenches digest..." When responding to posts within the Digest, be sure to restore the Subject: line to the original Today's Topics: 1. Re: offgrid system question (Joel Davidson) 2. Re: cooling, heating, ventilation issues ( Jeff Yago) 3. Inverter temp spec for cold regions (Allan Sindelar) ---------------------------------------------------------------------- Message: 1 Date: Thu, 21 Aug 2008 18:35:41 -0700 From: "Joel Davidson" <[EMAIL PROTECTED]> Subject: Re: [RE-wrenches] offgrid system question To: "RE-wrenches" <[email protected]> Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset="iso-8859-1" Hi Ray, In Arkansas we used whole-house fans or just a box fan in the open attic access hole to exhaust hot air out of the attic vents, closed the curtains on the south-facing windows and opened the lower sash on the north-facing windows to let cool air in. Migration to a better climate also works, but bring lots of wampum if you trek to the southern California coastal region. I'm reminded of an old Arco Solar slide of some people in Upper Volta (now Burkina Faso) standing next to a solar array and a dc pump with water gushing out of a dug well. Behind them is desert that looks like a Martian landscape. Those folks did not need solar water pumping. They needed suitcases and good walking shoes to migrate from desertification. There will be a lot of migration as climate changes affect coastal regions and rainfall patterns change and politics. For example, some of the Pacific Island villages threatened by rising water, the Mesa Verde Cliffs Anastasi Indians and drought, the Pilgrims to the Americas, etc. A lot can happen in a couple million years. Adaptation, migration, extinction. In the meantime, there's lots of fun to be had getting Americans to cut their energy consumption five-fold and/or helping people with no electricity improve their living standards without polluting like Westerners. There's hope for us yet. Keep up the good work. Joel Davidson ----- Original Message ----- From: R. Walters To: RE-wrenches Sent: Thursday, August 21, 2008 10:38 AM Subject: Re: [RE-wrenches] offgrid system question Hi Joel; I made a list of strategies we use a couple of emails back in this string. I'll reiterate: Here in Northern New Mexico we use adobes (lots of thermal mass) and open up to the cool night air. When I lived through Texas summers, you either ponied up for AC, went to your mountain home, or suffered. Dana stated the first 2 steps: super insulate & increase thermal mass. Next ?? : Reduce your cubic footage of air conditioned space. (Just cool a couple of inner rooms.) Share walls & cooling systems (like apartments, duplexs, etc) Reduce east & west glazing Grow overhanging deciduous trees on the East & West Use Fans Use some evaporative cooling if possible Use small High efficiency AC units (Sanjo?) Raise thermostat setting Use geothermal heat pumps Migrate? Ray . Could wrenches in hot-dry and hot-humid regions share how they eliminate or reduce air conditioning in existing homes? Joel Davidson ---------------------------------------------------------------------------- -- _______________________________________________ List sponsored by Home Power magazine [email protected] http://lists.re-wrenches.org/listinfo.cgi/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachme nts/20080821/6bb57089/attachment-0001.htm> ------------------------------ Message: 2 Date: Thu, 21 Aug 2008 20:02:17 -0700 From: " Jeff Yago" <[EMAIL PROTECTED]> Subject: Re: [RE-wrenches] cooling, heating, ventilation issues To: RE-wrenches <[email protected]> Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset="us-ascii" An HTML attachment was scrubbed... URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachme nts/20080821/e65c1601/attachment-0001.htm> ------------------------------ Message: 3 Date: Thu, 21 Aug 2008 21:50:54 -0600 From: "Allan Sindelar" <[EMAIL PROTECTED]> Subject: [RE-wrenches] Inverter temp spec for cold regions To: "RE Wrenches" <[email protected]> Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset="us-ascii" Wrenches, Inverter manufacturers have an ambient temperature range with a lowest temperature spec. For example, SMA has a spec of -13 to +113 degrees F. In our area of New Mexico, we have a record cold temperature well below the -13 degrees F. If we mounted the inverter on an outside wall or on a pole, this would expose the inverter. I called SMA and asked about this. They told me that the capacitor blows up if it goes below the coldest temperature. My question is does anybody have experience with this issue in the cold regions of the US like Colorado or Montana? Do you always mount the inverter inside in those cold regions? Thanks, Randy Sadewic Positive Energy -------------- next part -------------- An HTML attachment was scrubbed... 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