Currently there are ways for solar power plant owners to crunch numbers to project how much electricity their power plants might generate year after year.
One Hong Kong inventor is taking renewable energy a step further, developing technologies togenerateelectricity while you workout, and even figuring out howto create a wind farm on your balcony or roof.
But, like the bigger Karma (and the even larger Surf), there's an on-board motor that burns gas togenerate more electricityto extend that range -- but sadly nobody's saying by how far.