On 20 July 2017, STC prices have dropped dramatically, affecting every company across the solar industry, small or large, as well as PV customers all over Australia. This dip has caused the price of a 5kW solar system to increase by approximately $1000. So how do STCs work and when can you expect system prices to go down again? What are STCs? The solar industry benefits from a government incentive called the ‘Renewable Energy Target’ (RET). Under the Small-scale Renewable Energy Scheme, households and businesses with solar power systems up to 100kW, receive Small-Scale Technology Certificates