RE: [EnergyPlus_Support] Re: Energy Tariff definitions

[Jim Dirkes <jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx>]

Dear Forum,

Following up on this discussion, and with many thanks to Jason Glazer, here are some notes that may be helpful for your own efforts.

As background, I was modeling a building for LEED certification. The ?Baseline? HVAC system was easily modeled by E+ and so was the electricity rate structure.  The Proposed system was not so convenient and required some post-processing of the energy meter data to correctly reflect energy consumption.  Therefore, the Tariff objects were useless and cost calculations had to be done as a post-process.  I was therefore trying to make sure the post-process cost calculations matched the E+ Tariff calculations.

The main uncertainty (for me) was the definitions of the various demand periods.  Jason Glazer helped with the two shown below ? others are similar.

The other important factor is to make the Meter objects use ?timestep? as the reporting frequency.




Tariff Calculations in EnergyPlus 


Definitions:



PeakDemand:


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