I believe the Sunshot numbers are specifically about the USA. The amount of sunshine, cost of finance and installation costs are three big factors that vary by location, all three of which are probably contributing to that particular bid, but yes the general trend is looking very good.
2011 goals targetting 2020:
$0.09 per kilowatt hour for residential photovoltaics (PV)
$0.07 per kilowatt hour for commercial PV
$0.06 per kilowatt hour for utility-scale PV
2016 goals for 2030:
$0.05 per kilowatt hour for residential PV
$0.04 per kilowatt hour for commercial PV
$0.03 per kilowatt hour for utility-scale PV
This slightly older piece from 2015 make some projections based on a 16% learning rate and suggests various large orgs have estimated similar levels:
http://rameznaam.com/2015/08/10/how-cheap-can-solar-get-very...