Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
In CBECC-Com if you double click on a the fluid system you have designated for service hot water you will see that there is an input for 'Annual Solar Fraction', which should be a verified solar fraction calculation. What this input will do is take the Title 24 SHW peak flow rate per zone and remove the specified percentage from it - compare the 'Peak Flow Rate' of the 'WaterUse:Equipment' object in the IDF that is generated for the baseline and proposed and you will see the difference. You don't need to use EnergyPlus natively to remove this, you just have to set the 'Annual Solar Fraction' field to 0.
