[RE-wrenches] SWH data logging

[bill roush]

Anyone using these to receive REC's Renewable Energy Credits?

On Fri, Nov 14, 2008 at 9:39 PM, Carl Adams <swingjunkie at gmail.com> wrote:

> Kelly,
>
> I have installed several of the Metrima BTU/KWH meters for SHW.  The kit
> comes with a flowmeter, temperature sensors and wells (hot and cold), and a
> calculator, nicely integrated.  These are utility grade meters and more
> economical than the hardware you mentioned(dealer price $425).  Check out
> TCT Solar ( http://www.tctsolar.com/ the US distributor).  The only
> downside is that the units are BSP thread ( adapters to NPT are provided in
> the kit to drop the temperature wells and the flow meter into a 3/4" NPT
> line).  I guess if we deployed more of these in the US we'd have NPT as a
> standard option.  Another use I've found for these units is they allow me to
> adjustment for offsets in the tank temperature sensor vs the actual hot
> water temperature ( 2 - 10 degrees typical), and adjust the high limit set
> point accordingly.  I like the fact that customers can look at the kWh of
> energy delivered by the SHW system and easily convert to $$savings.  Larger
> units are available for higher flow rates/pipe sizes.
>
> Cheers
> Carl
>
>
>
> On Fri, Nov 14, 2008 at 9:50 AM, Kelly Keilwitz, Whidbey Sun & Wind <
> kelly at whidbeysunwind.com> wrote:
>
>> Thermal wrenches,
>> We have a customer who wants to log the energy gain of his SHW system.
>> The only viable option we've found is by Resol (also rebranded by Caleffi)
>> which includes their top-line controller (~$280) in conjunction with their
>> data logger, DL-2 ($500). With markup and installation this system will
>> cost
>> our customer over $1K.
>>
>> Are there any other AFFORDABLE options out there, that include data
>> logging
>> to a computer or web interface?
>>
>> Thanks,
>> -Kelly
>>
>> Kelly Keilwitz, P.E.
>> Whidbey Sun & Wind, LLC
>> Renewable Energy Systems
>> NABCEP Certified PV Installer
>> 987 Wanamaker Rd,
>> Coupeville, WA 98239
>> PH & FAX 360-678-7131
>> sunwind at whidbeysunwind.com
>>
>>
>>
>>
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-- 
Best,
Bill Roush
Heartland Solar Energy Industries Association
www.hseia.org
Heartland Renewable Energy Society
www.heartland-res.org
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