For anyone interested in this issue, I recommend the two reports from Citi and UBS described in these articles: http://reneweconomy.com.au/2014/citigroup-solar

For anyone interested in this issue, I recommend the two reports from Citi and UBS described in these articles: http://reneweconomy.com.au/2014/citigroup-solar-battery-storage-socket-parity-in-years-57151 http://reneweconomy.com.au/2014/citigroup-solar-battery-stor... http://reneweconomy.com.au/2014/ubs-time-to-join-the-solar-ev-storage-revolution-27742 http://reneweconomy.com.au/2014/ubs-time-to-join-the-solar-e... It all really comes down to battery cost. If Tesla's gigafactory does what it says it will do, in seriously reducing cost per kwh, then a huge home storage market will open up naturally. The projections do seem a bit heroic, though. People seem to have been predicting cost reductions in batteries for the last 15 years, but they don't seem to have come to fruition.