[RE-wrenches] cogeneration

Wed May 23 13:27:04 PDT 2012

Hi Mark, I have had a brush with a Honda CHP Combined Heat and Power unit, a 1 kW unit I think, and with a Marathon "ecopower" a 4.9? KW,  I was not the installer, These were a while back,  4 and 2 years I think.  One house the customer was keeping maticulus records and had a value calculation.  (honda unit)  The house had multiple systems,  and it turned out to be a significant challange to figure out what should be running.  From memory both put out about 2x kW the heat as they did electricity.  The marathon put out quite a bit of heat, and could be used as a furnace in a highly insulated house.  Both units had an inverter output and coupled well with a battery based inverter system.  (I connected through an Outback situation.  I did not connect through AC coupling to a DGI inverter.  The CHP acted as the grid and the outback acted Bimodal, nothing special no problems.  
I may be able to find the system diagrams, but they are simple.  
BTW I am preparing a CHP - PV proposal for off grid this week,  
DT

________________________________
 From: Mark Dickson <Mark at OasisMontana.com>
To: 'RE-wrenches' <re-wrenches at lists.re-wrenches.org> 
Sent: Wednesday, May 23, 2012 10:59 AM
Subject: [RE-wrenches] cogeneration

Have any of you had any experience or
heard of experiences with the residential cogeneration systems such as the
Freewatt?  Sounded like there was a lot of potential a few years back, but
have heard little since.  Any reason you couldn’t tie one into an
off-grid Sunny Island system? 

Best regards, 

Mark Dickson, 
NABCEP Certified Solar PV Installer
™ 
Oasis Montana
Inc. 
Mark Dickson, Certified Solar PV Installer 

________________________________

From:re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of William Dorsett
Sent: Wednesday, May 23, 2012 7:31
AM
To: 'Jeff Lahl'; ' RE-wrenches '
Subject: Re: [ RE-wrenches ] Solar NGO's in Haiti ??            

Jeff, I greatly appreciate your offer to help us think through putting
a system together in Haiti .
For some time we will be prioritizing the loads not so much for the orphanage
but for the doc and his wife. They are like so many who buy into a project before
processing that they are the ones needing to modify their lifestyles….one
of their priorities at our last meeting was air conditioning. So it is going to
take a reality check on equipment costs for them to come to grips with actually
living there. Even then these people might have enough money to stick out as
the Cadillac in a barrio. As we get closer to a list of indispensable loads
(even at that you’ll probably have a better idea of what can be bought in Haiti ), then we’ll
know what size battery bank, inverter, etc and I would like to get back to you
on the hardware and other design considerations that might be unique to Haiti .  

Bill Dorsett 
Sunwrights 
Manhattan , KS 

From:re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Jeff Lahl
Sent: Friday, May 18, 2012 7:47 PM
To: RE-wrenches
Subject: Re: [ RE-wrenches ] Solar NGO's in Haiti ??   

Hi Bill,  
If you want
to contact me offline, we can refer you to a local dealer in Port au Prince who
ussually has Outback and Rolls products in stock and I believe he
currently has some Solarworlds as well.  For a one-off project you're
probably on the right track.  Importing and going through customs in Haiti is
definately a pain and can be time-consuming.  You may pay more $ locally
but will pay less in problems, delays and frustration.  (SELF has
been working there since before the quake)  

Jeff   
jeff at self.org  

Jeff
Lahl  |  Project Director  
Solar
Electric Light Fund  |  www.self.org  
p 808-874-5706  
f 
808-874-5706        
________________________________  
energy
is a human right™  

Change a life.Change
the world.   

From:William Dorsett <wmdorsett at sbcglobal.net>
To: re-wrenches at lists.re-wrenches.org 
Sent: Friday, May 18, 2012 10:37
AM
Subject: [ RE-wrenches ]
Solar NGO's in Haiti ??  

A doctor in
town has started an orphanage in Haiti and while it has connection
with government power for a few hours per day, it of course is not reliable and
is very expensive. We are still in the stage where we are trying to figure how
to shed as much load as possible. I have no territoriality in this project and
will help provide system design and hardware at my cost, however apparently
tariffs can be huge so we may want to source as much as possible in country.
 Can anyone tell me which solar NGO’s (SELF?) you’d recommend
to tell us what hardware (deep cycle batteries) is available in country? And if
it is a simple UPS system, storing from the grid, what grid-connected battery
chargers does everyone recommend for a fairly large battery bank? Used to be
Todd chargers and I wondered if they’ve corrected problems or passed on
to some other company.  

Thanks for
your suggestions.  

Bill Dorsett  
Sunwrights  
1715 Leavenworth  
Manhattan, KS  
785/539-1956
Home/Office  

Bill Dorsett  
Sunwrights  
1715 Leavenworth  
Manhattan, KS  
785/539-1956
Home/Office  

_______________________________________________
List sponsored by Home Power magazine

List Address: RE-wrenches at 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

_______________________________________________
List sponsored by Home Power magazine

List Address: RE-wrenches at 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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20120523/dba493ca/attachment-0004.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 1867 bytes
Desc: not available
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20120523/dba493ca/attachment-0004.jpg>