For years, there have been financial incentives to encourage households to install rooftop solar and feed excess power back to the grid.  It’s helping the green energy transition and driving down power bills for those able to afford the upfront costs.  But the so-called “feed-in” tariffs are being cut as there’s a massive oversupply of energy on sunny days.  Today, energy reporter Dan Mercer on whether rooftop solar is still worth it.  Featured:  Daniel Mercer, ABC energy reporter