[Equest-users] On site renewable energy NC v2.2

[Javed Iqbal]

Hi,

PV watt is simplest in terms of input and getting reliable output. You can
also use System Advisor Model tool (https://sam.nrel.gov/) for modeling
solar thermal application. It uses TRNSYS engine for its simulation.

Hope this helps.

On Mon, Oct 1, 2012 at 6:58 PM, Busman, Michael R <MBusman at chevron.com>wrote:

>  I seem to recall that the PV inputs in eQUEST can be quite overwhelming.*
> ***
>
> ** **
>
> I agree with Nick that an outside software tool should be used.  RETScreen
> is a very good tool, however, it will give you annual production totals.
> Another approach is to use an online tool such as PV Watts.  It requires
> minimal inputs and you can download hourly production numbers.  These could
> be dropped into an hourly report spreadsheet along with time of use rates
> to obtain the net hourly electricity used or exported as well as cost.  The
> value of each kWh exported might be valued differently.  You could also use
> the hourly spreadsheet to calculate the peak demand offset monthly from PV
> generation.****
>
> ** **
>
> Mike Busman****
>
> ** **
>
> ** **
>
> *Michael R. Busman, CEM*****
>
> Lead Project Engineer II****
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> *From:* equest-users-bounces at lists.onebuilding.org [mailto:
> equest-users-bounces at lists.onebuilding.org] *On Behalf Of *Nick Caton
> *Sent:* Friday, September 28, 2012 3:18 PM
> *To:* Karen Smith
> *Cc:* equest-users at lists.onebuilding.org
> *Subject:* Re: [Equest-users] On site renewable energy NC v2.2****
>
> ** **
>
> Hi Karen,****
>
> ** **
>
> I think the basic procedure is you use your EAc1 energy model’s final cost
> and consumption figures to work out the averaged “rate” for electricity
> (LEED-2009 EAp2 templates assemble this algebra towards the end, can’t
> recall if the 2.2 templates do the same), and that figure is used to work
> out the value of the savings accounted under EAc2.  I would start with the
> EAc2 template and documentation so far as the overall procedure is
> concerned.****
>
> ** **
>
> That said, from my (limited) experience and the input of others on this
> list, PV can be explicitly modeled within eQuest model but is probably most
> easily approached if you start with some outside task-specific software to
> determine the amount of power you expect to be generated.  This gives you
> something to calibrate against without earning a PhD in photovoltaic
> minutiae.   Kinda similar to geothermal well fields in that regard.  I
> think the RETscreen spreadsheets are among of the series of tools that have
> been suggested to this end (more in the archives).  ****
>
> ** **
>
> That said as well, to get started back in your model:  Navigate in
> detailed mode to utility+economics tab à component tree à right click
> “Project” at the top à Create Photovoltaic Module… ****
>
> Your help documentation starts here (and probably ends up in the
> onebuilding archives):  Volume 2: Dictionary > HVAC Components > PV-MODULE
> ****
>
> ** **
>
> Best regards,****
>
> ** **
>
> ~Nick**
>
> * *
>
> [image: cid:489575314 at 22072009-0ABB]**
>
> * *
>
> *NICK CATON, P.E.*
>
> SENIOR ENGINEER****
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> Smith & Boucher Engineers****
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> direct 913.344.0036****
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> www.smithboucher.com* *****
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> ** **
>
> *From:* equest-users-bounces at lists.onebuilding.org [
> mailto:equest-users-bounces at lists.onebuilding.org<equest-users-bounces at lists.onebuilding.org>]
> *On Behalf Of *Karen Smith
> *Sent:* Thursday, September 27, 2012 4:31 PM
> *Subject:* [Equest-users] On site renewable energy NC v2.2****
>
> ** **
>
> Hi,****
>
> ** **
>
> Does anybdy know how can you add PV energy to energy model ?... as base
> utility? I’m looking into credits NC-v2.2 EAc2 Onsite Renewable energy
> and they want the percentage based on the energy model rate and annual
> energy cost. How should I model it?****
>
> ** **
>
> Regards,****
>
> ** **
>
> Karen Smith****
>
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-- 


Javed Iqbal, LEED AP, CEA
Energy Analyst
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