A load that runs from morning to night
Guest rooms and common areas need cooling through the day, kitchens and laundry run in the morning and afternoon, and hot water and lifts run around the clock. The daytime part of that load lines up with solar generation, so a hotel or hostel uses almost everything its system produces, which is the most valuable kind of unit under net billing.
The evening peak is the hard part
Occupancy peaks in the evening, exactly when solar fades and the grid’s peak window begins. Seeing how much of the bill falls in peak hours, and which loads cause it, is the first step to moving flexible load (laundry, water heating, pumping) into off-peak hours. WattEY measures grid, generator and solar separately and splits grid use into peak and off-peak.
Fair billing for hostels and shared buildings
A hostel buys power on one connection and re-bills many residents who come and go. WattEY Sub-Billing measures each room’s use for the exact days a resident was present, with a photograph behind every meter reading, so the split is defensible. It has run at Rehma Hostel, Lahore, since October 2026.
