A tesla 2 powerwall, weighs about 120 kg and holds about 14 kWh of power. In India, the average household has a 2.5 kW Peak Power meter and usually, about 10 k

A tesla 2 powerwall, weighs about 120 kg and holds about 14 kWh of power. In India, the average household has a 2.5 kW Peak Power meter and usually, about 10 kWh per day is consumed. So, not exactly a back-pack, but yeah. The average individual house in India, is constructed in a plot of about 200 Square Yards. Usually available roof space is about 1000 sft. Assuming no shadows or high rises in the vicinity (80% of homes have good sunshine even in dense cities), this area is sufficient for about 5 kW of installed capacity. Most of the deccan plateau gets about 6 hours of good sunshine year-round. So that translates to about 30 kWh of power generation capability. So, a 3 kW installed capacity, with 1 powerwall will be sufficient to power an average household for most of the year. Of course, this does not take into account usage of ACs (a fast increasing power consumption category in India) However, it costs about Rs. 100,000 for 1 kW of installed capacity (including inverter and grid connected meter, no batteries) For 5 kW, that is 500,000 Rs. (about 7000 USD) of investment. Average annual salary of an Indian household in an urban area is about 15000 USD. About half of that in rural areas. If there are good financing options and grid connected reverse selling meters (they are being encouraged by many local and state governments), there could be a revolution in installed solar capacity and utilization.