Tesla unveils the Model 3 electric vehicle. As the name suggests, it's the third model of its new range and one it hopes hits the mass market and lifts its sales to 500,000 units a year.

Solar developer and private asset manager Capital Dynamics has selected module manufacturer ET Solar to provide modules for 14 solar projects in North Carolina in the US with a combined capacity of 84.4MW.

Enphase - which opens new R&D facility in New Zealand - says battery storage prices will fall quickly as market expands and chemistry costs come down.

Victoria rises to second place behind Queensland, where rooftop solar market is slowing sharply despite promises by the Labor government to double installations by 2020.