Having spent more than Rs1 lakh every year on electricity bills till now, the Krishna Mahal cooperative housing society in Chembur has managed to save 95% of that cost with its 7.15 kilowatt-power (kWp) rooftop solar power plant.
The 11-storey building had been spending nearly Rs 1.12 lakh every year for an average annual consumption of 11,774 units, which is about Rs 9,000 per month and daily consumption of 32 units. For a comparison, a two bedroom kitchen apartment in Mumbai uses 8-10 units of electricity per day.
Installed in December, the rooftop solar project allowed the electricity bill to drop from Rs 9,250 in December to Rs1,430 in January and ₹410 in February. HT has a copy of the electricity bills.