We are planning to have Solar PV energy for 100 % internal lighting consumption. Should we consider parking and external lighting consumption as well in the calculations so as to meet 100% internal lighting load?
According to appraisal 18.3.6, GRIHA Version 3, if the off-site or on-site renewable energy system meets annual energy requirements of equal to or more than 100% of internal & external lighting consumption (basement lighting not included) or its equivalent in the building, as per all compliance clauses then the project achieves 2 points.
The calculation for 18.3.1 is done for connected load of internal + external lighting and HVAC. Whereas the calculation for 18.3.2 to 18.3.6 is done on internal lighting consumption only.