Energy Positive House Developed in wales Has Strong Potential for India

Gizmag has this article about a Welsh University's design for a home that generates more electricity than it uses. A series of row houses to this design feeding surplus electricity into Tesla batteries or into the grid for common area use in a community, would be a superb idea for countries like India. I am assuming that the energy surplus capabilities of this house are achieved with 3 hours of sunlight a day, for 300 days a year, a standard for countries in the North. Move southwards to warmer climes like in India, and you can think of much more sunlight to convert, for approximately 6 hours a day, 325 plus days a year. This means that the concept would be much more viable there. I hope some entrepreneur is seriously looking at this. A lot of Indian engineering students go to the UK to study - there might even be some students in Cardiff. Hopefully, this strikes someone's eye. Or, perhaps, tesla could consider getting into this business.