Section 9.4.1.3 requires that lighting shall be controlled by one or more devices that automatically reduce lighting power of each luminaire by a minimum of 30% when there is no activity detected within a lighting zone for no more than 30 minutes. How would this be modelled in eQuest?
Additionally, if occupancy sensors are installed at all required spaces (9.4.1.2) in both baseline and proposed case would the 10% adjustments make sense since no credit for automatic lighting controls is being taken? In other words, would it be accepted not to make the 10% adjustment?
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5867 thumbs up
November 20, 2018 - 1:54 pm
9.4.1.3 - you would need to develop a lighting schedule for these fixtures that meets the minimum requirements and another for the actual design if it is not identical. So this all depends on how often the project is likely to see no activity detected for more than 30 minutes.
9.4.1.2 - The credit in Table G3.2 only applies to spaces where control is not required by Section 9.4. In those spaces you can claim savings by taking the credit in the proposed and not applying it to the baseline. Of course you can always not apply the adjustment by claiming that your approach is conservative (i.e. adversely affects the savings). In the spaces where Section 9.4 requires automatic lighting controls you must model the baseline according to those requirements and the proposed as designed. You cannot apply the 10% credit to these spaces. Of course these are mandatory provisions so the proposed design must meet these at a minimum.