Criterion 8: Energy efficiency

• HAP software for energy simulation
• What LPD to be considered in the model?
• Areas and equipment to be included in EPI calculations
• Daylight analysis for a college building
• Requirement for automatic lighting controls for ECBC compliance in a residential building
• What will be the EPI for a naturally ventilated hostel building?
• Since ECBC 2017 has been released, should GRIHA projects comply with the requirements of ECBC 2017?
• What should be the Energy Performance Index (EPI) for airports?
• Is the ECBC clause for motors applicable to a naturally ventilated residential building?
• Are motors running for less than 1500 hours per year exempted as per ECBC?
• Can we reuse Air Conditioners from another building in a GRIHA project?
• Should the project comply with ECBC mandate in case of an existing transformer?
• What details to consider in case for submersible pumps to demonstrate compliance with ECBC?
• What occupancy should be considered for calculations in case of 1 BHK apartments?
• Will the project be eligible for GRIHA Rating, if it does not meet any one of the mandatory compliance measures recommended in ECBC?
• Is it still necessary to fill the online calculator after attaching the energy simulation report containing EPI calculation?
• How to demonstrate compliance with clause 11.1.2, criterion 11, and artificial lighting design for tenant occupied area where developer did not install any lighting fixture?
• Should exterior light consumption be considered in EPI calculation?
• Are Benchmark EPI numbers same for naturally ventilated buildings?
• Can we consider energy savings accomplished through solar hot water system in EPI calculation?
• Should AC schedule be modeled for a project where the developer has not given provision for AC electrical point or drain?
• Are LPD (lighting power density) calculations considered for outdoor lighting in Criterion 6?
• Can we consider club house as “residential” in a residential project for meeting the SHGC requirement?
• Is it mandatory to provide BEE star rated fans in a GRIHA registered project?
• We have selected an 800 kVA oil cooled transformer.The ECBC table of transformer losses does not have specific allowable losses for 800 kVA units. What options are available to us to get maximum allowable power transformer losses for this particular case?
• Can dimmers be used as lighting controls?
• Are daylight controls in exterior places accepted as lighting controls according to the ECBC norms and GRIHA requirements?
• How would be the EPI (criterion 14, GRIHA Version 3) calculated for the following project: Project has an 8 hrs. Working schedule and has A.C. as well as Non A.C. spaces.
• What is the exact meaning of daylighted areas?
• Can 1 star AC be considered for energy simulation purpose if there are no AC’s installed in an apartment? Will this suffice the requirement of thermal comfort, (criterion 14, GRIHA Version 3) in residential building?