[RE-wrenches] AC (only) Diversion

[Chris Mason]

It is called a reverse current relay, use it to to run on a water heating
contactor when there is current to the grid.
This is a problem I have struggled with for ages. We do not get credit for
export so I have been looking for a good use for free electricity, have not
found one yet.

On Fri, Oct 12, 2012 at 3:36 PM, Nathan Stumpff <Nathan at arcticsun-llc.com>wrote:

> Wrenches,****
>
> ** **
>
> We are working on the design for a system where we will be using grid-tied
> wind and solar but will not be able to net-meter the project (we can
> interconnect but the meter only runs one way.) Anything we use on site is
> worth 100%, any production that goes back to the grid is lost forever to
> the customer. What we would like to do is monitor all solar and wind
> production, monitor all usage, and then be able to dump every watt-hour of
> over production as heat, there is plenty of (thermal) storage capacity.***
> *
>
> ** **
>
> If this were a battery based system I know how I would approach this and
> what equipment I would spec, but so far I am having a hard time coming up
> with a  solution. Anyone have any suggestions for products or strategies in
> this case? Something like an eGauge with programmable PWM relay outputs?**
> **
>
> ** **
>
> Any thoughts or suggestions are most appreciated,****
>
> -Nathan****
>
> ** **
>
> ** **
>
> --****
>
> Nathan J. Stumpff - Arctic Sun, LLC****
>
> NABCEP Certified PV Installer #091209-175****
>
> NABCEP Certified Solar Heating Installer #032412-14****
>
> nathan at arcticsun-llc.com****
>
> Office: 907/457-1297****
>
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-- 
Chris Mason
President, Comet Systems Ltd
www.cometenergysystems.com
Cell: 264.235.5670
Skype: netconcepts
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