[RE-wrenches] grid tie sync with big stiff genny?

Mark Edmunds mark.edmunds at xantrex.com
Fri Mar 13 09:58:58 PDT 2009


Yes - the pay as you go metering was a key aspect of this system. Even though I think the residents are only paying about 7 cents per kWh putting the meters in caused a dramatic drop in consumption!

 

From: re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Kurt Albershardt
Sent: Friday, March 13, 2009 9:51 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] grid tie sync with big stiff genny?

 

On 3/13/09 9:34 AM, Mark Edmunds wrote: 

We did a test installation in northern British Columbia with 28kW of PV and GT5 inverters selling to a 90kW Genny system in a remote off-grid community. So far we have just stuck to the normal 1741 islanding settings, and the system has been working smoothly. The PV was basically sized so that it would not exceed the lowest mid-day load on the small grid, and there was already an automatic dump load in the system to ensure the diesels never became completely unloaded.

 

So far the system has been working very well, with good fuel saving for the community. You can read more about it here.

 

http://nemiahpower.blogspot.com/


Looks like a fun project.  I like the separation of cricical, commercial, and residential loads (especially the UK style pay-as-you-go metering on the residences.)  I know those air-cooled Deutzes are hard to kill, but this looks like a perfect application for water-cooled machines feeding a district heat loop.





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