Solar panels now work at night, thanks to Stanford engineers
Engineers added a special device to regular solar panels called a thermoelectric generator
Engineers added a special device to regular solar panels called a thermoelectric generator
160W solar panel's cost experienced a substantial reduction, ranging from Rs4,000 to Rs4,500
Cost of solar panels rises from Rs75,000 to Rs300,000
Market offers 7 to 15-kilowatt systems for as low as Rs 200,000