This should be possible. I have discussed what it might take to set up a system like that in the Gambia, with wind generators. It would take a control system with differential current sensors and other features. The UL 1741 specifications would probably need to be opened up on multiple direct grid tie inverters. There would be a practical limit on the percentage of feed to the generator mini grid.

This being said, I've not received much encouragement with this idea. There are a lot of factors to consider.


At 09:35 AM 3/11/2009, you wrote:

Undoubtably many of us are getting interesting project requests as folks want to sprinkle magic stimulus dust on things to make solar panels grow...



We have a project with a huge electrical load, pumping water for a medium sized city. They want solar... great. Easy.



They had a power outage and kept running with 2.6 MW of diesel generators. They are interested in solar's ability to do "backup". I don't think that many batteries will fit in my pickup truck, and I hate working with 300/0 wire.



QUESTION: (and maybe its an easy one and the SMA guys will say, sure, we did that in Greece). Is it viable to set up a micro-grid in this scenario and run an island-mode, with available solar reducing the genny plant demand? Should I just say "forget it" or, at this MW scale, would the switchgear and effort be practical?



Thanks.

For a brighter energy future,

Geoff Greenfield
President
Third Sun Solar & Wind Power Ltd.
340 West State Street, Unit 25
Athens, OH 45701

740.597.3111     Fax 740.597.1548
www.Third-Sun.com

Clean Energy - Expertly Installed


_______________________________________________
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

Drake Chamberlin
Athens Electric
OH License 44810
CO License 3773
740-448-7328
740-856-9648

_______________________________________________
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

Reply via email to