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Total 12 documents matching your query.

1. Re: [Shop-talk] PV system (score: 1)
Author: "Bill Gilroy" <wmgilroy@gmail.com>
Date: Mon, 18 Jun 2007 16:20:38 -0700
If you are sending power back onto the grid what happens with downed lines and workmen? I know with generators you have to have a transfer switch so you don't put power back on the grid. How is this
/html/shop-talk/2007-06/msg00078.html (8,188 bytes)

2. Re: [Shop-talk] PV system (score: 1)
Author: "David Scheidt" <dmscheidt@gmail.com>
Date: Mon, 18 Jun 2007 19:59:32 -0400
Most places require an automatic disconnect. When the voltage on the grid side drops, the PV system disconnects the inverter output from the grid. -- David Scheidt dmscheidt@gmail.com _______________
/html/shop-talk/2007-06/msg00079.html (7,928 bytes)

3. Re: [Shop-talk] PV system (score: 1)
Author: Roland Wilhelmy <rwil@sbcglobal.net>
Date: Mon, 18 Jun 2007 17:16:19 -0700
a synchronous inverter, which is used in grid-tied systems, requires a 60 hertz signal from the power company in order that its power matches the phase and frequency of that in the lines already. So
/html/shop-talk/2007-06/msg00080.html (7,860 bytes)

4. Re: [Shop-talk] PV system (score: 1)
Author: scott.hall@comcast.net
Date: Tue, 19 Jun 2007 02:26:30 +0000
wait...that never came up. so you're saying that when the utility loses power (like they're wont to do here) I'm down, too, even with the PV system. nobody mentioned that, and we got fairly involved
/html/shop-talk/2007-06/msg00081.html (8,067 bytes)

5. Re: [Shop-talk] PV system (score: 1)
Author: Chris Kantarjiev <cak@dimebank.com>
Date: Mon, 18 Jun 2007 19:34:11 -0700 (PDT)
No, you'll just drop your tie to the grid. The inverter will continue to work. _______________________________________________ Shop-talk mailing list http://autox.team.net/mailman/listinfo/shop-talk
/html/shop-talk/2007-06/msg00082.html (7,372 bytes)

6. Re: [Shop-talk] PV system (score: 1)
Author: "old dirtbeard" <dirtbeard@pacbell.net>
Date: Mon, 18 Jun 2007 19:37:40 -0700
On a grid tie system, you actually will lose all production capacity, at least here in CA. best, doug _______________________________________________ Shop-talk mailing list http://autox.team.net/mail
/html/shop-talk/2007-06/msg00083.html (8,077 bytes)

7. Re: [Shop-talk] PV system (score: 1)
Author: Roland Wilhelmy <rwil@sbcglobal.net>
Date: Mon, 18 Jun 2007 19:41:09 -0700
Must be a new version of the inverters used; I stand corrected. Last time I checked, synchronous inverters needed something to synchronize to in order to work. With no batteries you won't have power
/html/shop-talk/2007-06/msg00084.html (7,880 bytes)

8. Re: [Shop-talk] PV system (score: 1)
Author: scott.hall@comcast.net
Date: Tue, 19 Jun 2007 03:06:43 +0000
yeah, I know about the loss of power at night, and I'd prefer to get the batteries. at the time, though, I was told to get the credits you had to explicitly *not* get a battery setup. and it was much
/html/shop-talk/2007-06/msg00085.html (8,678 bytes)

9. Re: [Shop-talk] PV system (score: 1)
Author: "Randall" <tr3driver@ca.rr.com>
Date: Mon, 18 Jun 2007 20:17:43 -0700
In that case, I'm sure it wouldn't be too hard to arrange a switch & 60 Hz reference. Whether your utility would approve the arrangement or not is a different matter. Here's a web page describing su
/html/shop-talk/2007-06/msg00086.html (7,602 bytes)

10. Re: [Shop-talk] PV system (score: 1)
Author: John Miller <jem@milleredp.com>
Date: Mon, 18 Jun 2007 22:58:53 -0700
Battery-backed systems use different equipment, and *do* stay on line when the utility drops out. You lose a few percent of efficiency with the battery-backed systems, since the panels is essentiall
/html/shop-talk/2007-06/msg00087.html (8,058 bytes)

11. Re: [Shop-talk] PV system (score: 1)
Author: John Miller <jem@milleredp.com>
Date: Mon, 18 Jun 2007 23:05:36 -0700
Not the SMA Sunny Boy we've got, at least, nor, I think, the Sharp inverters used in a couple later installations I'm familiar with. John. _______________________________________________ Shop-talk ma
/html/shop-talk/2007-06/msg00088.html (7,671 bytes)

12. Re: [Shop-talk] PV system (score: 1)
Author: "Jack Brooks" <jibjib@att.net>
Date: Tue, 19 Jun 2007 17:40:32 -0700
cedar trees right around my house. Surprisingly, Seattle is a hotbed of PV and solar research. Probably one of two reasons: 1. Because we hug trees here, <grin> 2. Because if you can make solar cost
/html/shop-talk/2007-06/msg00093.html (7,859 bytes)

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