E-charkha Generates Juice
Fancy taking India’s ubiquitous charkha and adding a dash of technology to it, aptly known as the e-charkha. This device produces yarn and does much more than that - it also generates electricity thanks to a maintenance free lead acid battery located at the bottom which doubles up as an inverter. The e-charkha is able to churn out 6 - 9 Watts of power, and two hours of continuous spinning will be able to keep its custom LED light source running for up to 7 hours, enough to extend working time late into the night without having to work in darkness. Also, these LEDs will reduce reliance on toxic and dangerous kerosene lamps, which indirectly lowers medical costs. It will cost around $200 to produce the e-charkha, so hopefully due time and advancements in technology will reduce that price to a more affordable for people living not only in India but other developing countries as well.