• stephengn

    More so than batteries, research into artificial photosynthesis and carbon negative solar fuels (which is already advancing quickly) is of the utmost importance

  • Mike Dill

    Battery costs are coming down at about 8% a year. Expect them to be economic for general use by 2020 or so. While the utilities will be slow to adopt the new technologies, they will be useful for most people with solar panels to reduce their electric bills by then.