The New Town Kolkata Development Authority (NKDA) has installed over 700 “intelligent” solar lights along 24 streets across New Town. The move is expected to reduce the electricity bill by Rs 3 lakh per year.
The solar panels fitted with sensors enable the lights to automatically switch on when the sun sets. Also, the intensity of the street lights reduces after a set time, which is currently configured at 10pm.
Officials said the solar power is stored in fixed-use lithium batteries that have long life span with no maintenance and are safe and efficient.
Nearly all solar energy installations in New Town use the net-metering mechanism, in which the generated solar energy is fed into the electricity grid during the day while power from the grid is drawn at night. Earlier, NKDA had installed smart LED streetlights on a 1-km stretch in the township.
NKDA has been promoting solar power in New Town as part of its green initiatives. The authorities are working on plans to install five steel-based tree-like devices that will generate solar power and about 1,300 solar road studs across the township to reduce consumption of conventional energy.