Homes & cars are electrifying as our economy decarbonizes: 42% the US’s energy-related emissions come from household appliances and cars. At the same time, energy generation is gradually moving from utility scale to the home, and intermittent energy is causing energy prices to fluctuate more dramatically than in the past, variance that is starting to…

As we’re heading down a path of ever more intermittent energy, the need for energy storage will become critical. It’s early stages, but the solutions are becoming clearer: overcapacity of solar & wind generation will help, together with (ever cheaper) lithium-ion / sodium-ion batteries for short-term storage, plus pumped hydro and hydrogen & derivative gases…

Not financial advice! Just a starting point — do your own research 🙂 Intro We’re obviously pretty far off from solving our climate problem. People are energized to help: from lifestyle changes to charity donations, from starting new climate careers to throwing soup at paintings. Another way to help is through climate / impact investing.…

Having worked on new tech product development for India (and other emerging markets) for 5 years, two observations have always jumped out: This decade, the former should continue uninterrupted, but the latter is set to change: technology innovation in India is accelerating, and by the end of the decade I believe Indian tech products will become…

1% of San Franciscans — about 8,000 people — are homeless. It’s a very visible problem, dehumanizing for those living on the streets and disheartening for all residents. Wanting to understand this key problem of our city better, I spent several weeks digging into reports, research papers and newspaper articles. Here’s my summary of the…

Another billion people will soon get their first smartphone. Who are they and how do we build useful products for them? The next billion The world is getting a smartphone fast: today 4 billion people own one, that’s 1 in 2 people alive. This also means another 4 billion people don’t yet have one. How…