Stupid Questions May 2015

Gondolinian

This thread is for asking any questions that might seem obvious, tangential, silly or what-have-you. Don't be shy, everyone has holes in their knowledge, though the fewer and the smaller we can make them, the better.

Please be respectful of other people's admitting ignorance and don't mock them for it, as they're doing a noble thing.

To any future monthly posters of SQ threads, please remember to add the "stupid_questions" tag.

Please be respectful of other people's admitting ignorance and don't mock them for it, as they're doing a noble thing.

To any future monthly posters of SQ threads, please remember to add the "stupid_questions" tag.

A bit of Googling brings me to http://reneweconomy.com.au/2015/solar-grid-parity-world-2017:

Investment bank Deutsche Bank is predicting that solar systems will be at grid parity in up to 80 per cent of the global market within 2 years, and says the collapse in the oil price will do little to slow down the solar juggernaut.

Over the last decades solar doubled price efficiency roughly every 7 years. Batteries also get exponentially cheaper.

Coal doesn't get cheaper but a little more expensive. It also easy to make it more expensive by creating higher environmental standards and cutting coal subsidies if there's political desire to do so.