Re: [EnergyPlus_Support] Model sizes, controls and PV

["Michael J. Witte" <mjwitte@xxxxxxxx>]

Michelle:

LBNL recently conducted a survey regarding how EnergyPlus is being 
used.  Someone from LBNL may be able to share some of those results 
with the group here.

Regarding controls, I would agree that specifying certain control 
types was simpler in DOE-2.1E, but EnergyPlus should be able to do 
all of the same control strategies that DOE-2.1E has.  What specific 
controls from DOE-2.1E are you unable to do in EnergyPlus?  What 
specific controls are you unable to do in either program?

Please send your PV input file to energyplus-support@xxxxxxxx so that 
we can look into the directional errors which you found.

Mike


On 11 Sep 2002, at 22:21, Michelle Smith wrote:

> I am just curious, what size buildings are being modeled with 
> EnergyPlus? Not only the phyical size, but how complex are the 
> buildings (structure, many wall and window types, etc.)?
> 
> Also, are there any plans to make the control systems more flexible. 
> Building controls in the real world are extremely flexible. You can 
> control by more than just temperature and time schedules, you can 
> use disciminator controls to control based on loading or control 
> based on occupancy sensor input. In my opinion, modeling real world 
> controls using DOE is much more flexible.
> 
> Finally, has any one else used EnergyPlus to model PV performance? I 
> used EnergyPlus and the results just didn't look right to me, so I 
> used another program to compare. EnergyPlus wasn't even in the 
> ballpark with regard to the energy produced. Additionally, I had two 
> arrays of different sizes pointing different directions, and the 
> results reported by EnergyPlus were exactly the same for both. Any 
> thoughts?
> 
> Thanks for any input,
> 
> Michelle Smith
> Belle Engineering, LLC
> 
> 
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