Direct Coupling [RE-wrenches]

[Bill Brooks]

Mark,

U. Mass. Lowell did a project on a department store in New England about
eight years ago. It worked well initially, but I'm not sure how long they
operated the system or if it is still in operation. Miles Russell at
Ascension Tech (Schott APC) would know about it.

Bill.



-----Original Message-----
From: Mark Robinson [mailto:Mark at TheEnergyGrid.com]
Sent: Friday, April 18, 2003 9:30 AM
To: RE-wrenches at topica.com
Subject:Direct Coupling [RE-wrenches]


Thanks, Chris.
As I understand it, you can pump 165 VDC into a standard ballast and operate
with no problems. I haven't heard of anyone trying it... Assuming anyone
survived.

Mark


-----Original Message-----
From: Christopher Freitas - OutBack Power [mailto:cfreitas at outbackpower.com]

Sent: Tuesday, April 15, 2003 7:29 PM
To: RE-wrenches at topica.com
Subject: RE: Learning about Direct Coupling [RE-wrenches]


Brad Bassett wrote:

> My understanding is that NexTek has a controller/inverter they use for
> the interface with the grid power. I would just ask them.

The idea of the Next Tek was to "mix" the PV power with utility power to
operate the lighting loads of a commercial building. The inverter would
be cheaper and the issues of anti-islanding and dedicated transformers
are reduced.

Many of the electronic ballasts can actually operate directly on high
voltage DC BTW.  There was a system done this way in the mid 90s back
east by Richard Perez (not of HomePower but NY) which was funded by NREL
etc. Never saw the results however.

Its probably one of those good solutions looking for a problem kinda
things....

Christopher Freitas
OutBack Power Systems, Inc.
cfreitas at outbackpower.com  www.outbackpower.com
Tel 360 435 6030  Arlington WA USA

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://www.topica.com/lists/RE-wrenches/

List rules & etiquette: http://www.mrsharkey.com/wrenches/etiquete.htm

Check out participant bios: www.mrsharkey.com/wrenches/index.html

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://www.topica.com/lists/RE-wrenches/

List rules & etiquette: http://www.mrsharkey.com/wrenches/etiquete.htm

Check out participant bios: www.mrsharkey.com/wrenches/index.html

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://www.topica.com/lists/RE-wrenches/

List rules & etiquette: http://www.mrsharkey.com/wrenches/etiquete.htm

Check out participant bios: www.mrsharkey.com/wrenches/index.html

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com

==^================================================================
This email was sent to: michael_welch at sbcglobal.net

EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Qcs.bz9JC9.bWljaGFl
Or send an email to: RE-wrenches-unsubscribe at topica.com

TOPICA - Start your own email discussion group. FREE!
http://www.topica.com/partner/tag02/create/index2.html
==^================================================================