SolarDC | Rajasthan

Rajasthan (Jodhpur and Jaisalmer districts)

System Configuration for each Home

125Wp Solar Panel
1kWh high performance VLRI Battery
Inverterless Controller
One BLDC Ceiling Fan with Remote
One DC LED Tube light with Remote
Two DC Bulbs
One DC Mobile Charger
One DC Socket

4000

Homes

Desert

Terrain

Oct 2016

Concept

Solar-DC systems would save about 35-40% of the power as compared to a solar-AC system. Add to it the energy-savings associated with DC appliances, huge gains in efficiency becomes possible. This efficiency gains translate to lower sized solar panel and smaller battery and therefore cost-savings when compared to a solar-AC system. Such a set-up offers an economical and affordable solution for off-grid/ near off-grid homes (homes with large power-cuts), and could also be useful for grid-connected homes in saving power-bills as well as providing back-up power. This is achieved by Solar-DC Inverterless technology, conceptualized by IIT Madras.

Inverterless- Touching people’s lives

The bright white light from DC bulbs which now light up the otherwise pitch-dark nights of Bhomji ka Gaon gives us a glimpse into the future of how the world’s poor could access electricity that is decentralized, renewable, reliable and most importantly, affordable. The time has now come to start powering all off-grid/near off-grid homes in India using technologies like Solar-DC Inverterless.