A landmark moment. Solar is now cheaper, unsubsidised, than fossil fuels in some markets.
Clearly this will have huge implications over the next decade; not only will this help us massively cut emissions, it will alter the balance of power.
Also, there will be an avalanche of investment as the economics swing in other markets. Time to buy a hot, sunny desert!
But the technology momentum goes only one way. "Eventually solar will become so large that there will be consequences everywhere," they said. This remarkable overthrow of everthing we take for granted in world energy politics may occur within "the better part of a decade".