Modeling a DES system after Option 2, we got the energy consumption and prices from the DES. With these we calculate our virtual rates according to 2.4.2.
The DES uses a mix of gas, coal, waste and oil.
My questions: 1. In my understanding, the DES guide is a bit short on which energy type should be used in the baseline. Yet we used gas as it was the main energy source of the DES.
2. The DES operater provided us with his gas procurement costs which are nearly half of the average gas prize for commercial customers. I would like to argue that only the DES is able to get such a low prize due to its high consumption and therefore use the actual (low) gas prize in the DES virtual rate and the average gas prize for commercial customers in the baseline case.
Would be great to get your thoughts on this!
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Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
October 18, 2012 - 10:48 am
1. You should use the same fuel mix for the baseline central plant.
2. You can try to argue that point but Appendix G and the DES are pretty clear that the rates must be identical in both models.