Articles on energy efficiency, solar panels, heat pumps, and reducing your electricity bills.
17 April 2026 · 8 min read
Every year you delay solar, batteries, and electrification, you pay full grid price for energy you could be generating. We ran the numbers for Sydney, Melbourne, and Brisbane to show exactly what waiting costs.
7 April 2026 · 10 min read
The optimal upgrade sequence is different in every Australian city. We ran the numbers for all seven capitals to show why order matters and how much it costs you to get it wrong.
30 March 2026 · 8 min read
At $2.50 a litre, petrol is costing Australian drivers up to $5,600 a year. We ran the numbers on three vehicles to find out when an EV actually pays for itself.
21 March 2026 · 7 min read
We ran the numbers for every Australian state. A heat pump hot water system pays for itself in under 2 years in most cases, and saves $4,000 to $11,000 over 15 years compared to gas.
18 March 2026 · 8 min read
Most Australian homes on gas are paying $250 to $300 a year just for the connection, before they use a single megajoule. The maths on switching to electric is stronger than most people realise, and in the ACT they literally pay you to do it.
12 March 2026 · 8 min read
Batteries are not the no-brainer that solar panels are. But the economics have shifted a lot in the last 12 months, and for some households, a battery now genuinely stacks up. Here's the state-by-state breakdown.
9 March 2026 · 5 min read
Since the US-Israel strikes on Iran, Brent crude has jumped 49% in nine days. I went through every major analyst forecast I could find to figure out where petrol prices are headed over the next six months.
10 March 2026 · 7 min read
If you own a home in Australia and you don't have solar panels yet, you're basically paying a voluntary tax on your electricity bill. That's not hyperbole — it's just what the maths says in 2026.
8 March 2026 · 5 min read
Solar was the easy decision. Figuring out what to do next — battery, heat pump, insulation — was a different story. No tool could model them all together, so I built one.