Warwick Johnston

Should rooftop solar retailers sell air source heat pumps too?

Air source heat pumps are starting to eat the lunch of rooftop solar. The retailers that manage to sell and…

June 13, 2023

Rooftop solar hits record high during Covid-19… but what’s happening with leads and sales?

As Covid-19 restrictions begin to be eased around Australia, SunWiz takes an in-depth look at the data to reveal what’s…

May 11, 2020

What does 10GW of rooftop solar power look like?

Australia's rooftop solar capacity is soaring, and is showing no signs of slowing down.

January 15, 2020

Changes to Victoria solar rebate brings relief – but (how long) will it last?

After months of uncertainty, it looks like Victoria’s solar industry can finally breathe a collective sigh of relief.

August 30, 2019

What’s going on with Victoria solar? A correction, and an update, on market data

We correct a mistake made on July data for rooftop solar installations in Victoria – but note that the state's…

August 15, 2019

Residential revival: How home solar broke records in 2018

Just when you thought Australia's residential market had peaked, 2018 delivered a record year of installs, with a big boost…

February 14, 2019

Why we should thank John Howard for starting the rooftop solar boom

Thanks to the actions of millions of Australian households, the process of modernising our grid is well underway, and households…

December 3, 2018

The solar market consolidation that never happened

Remember the predictions that the solar market would consolidate from 4000 businesses to four or forty major solar companies serving…

January 31, 2018