very old news, deliberately ignored for too long
FFS we knew research was the best investment 25yrs ago. Even economists finally worked out a decade ago it was more cost effective than what's actually happened if started early.
Unfortunately state level investment was one of the things the obstructionists have managed to block for those years. Unsurprisingly with no pressure to change the energy industry also sat on their arses till belatedly forced into pointless crap like smart meters.
Looking at the tiny number of PV panels in my city, if we're getting 5.8% from that few of them now, that's pretty spectacular. And a real pity we don't have the benefit of 20yrs focussed research on cost and solving the storage&network problem, from people who don't have old industries to defend. The subsidy has been a damn expensive way to achieve cost reduction.