Renewables roadshow: how the 'nonna effect' got Darebin's pensioners signing up to solar

In our new series on Australian renewable projects, we visit a suburb where an investment scheme makes solar energy accessible to those who need it most

In Darebin in Melbourne's northern suburbs, solar installations have spread rapidly through the area's low-income households.

"We call it the 'nonna effect'," says Trent McCarthy, a Greens councillor in Darebin. "The nonna in the street has her solar on her roof. She's very proud, she tells all of her friends. It's social marketing 101."