In addition to photovoltaics and battery stoerj, they use remote artificial intelligence based energy management systems. we have smart meters that allow a very poor household to pay for only what they consume and do so via their phone and do it very efficiently so that these systems are economically productive. and, frankly, fareed, because these work, we partnered with ta-ta power, which is now rolling out 10,000 of these systems in india. we ll get the cost down to under 15 cents a kilowatt an hour, at which point it beats any alternative source of energy and help 25 million people not just move out of poverty but do it on a clean development path that s safe for our planet and for their local communities. when will we see real results on this kind of scale you re describing? like you said, so far what you ve done is impressive but small scale. when will we see millions and millions and millions of people