Wattcalc articles
Plain-English explainers on Australian energy and sustainability decisions — every article links back to the calculator that does the maths.
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Is solar worth it in Australia in 2026?
Feed-in tariffs have collapsed since 2018 — but retail electricity rates haven’t. Here’s what payback actually looks like in 2026 with worked examples.
Read article →EV vs petrol car Australia: the real cost breakdown
Sticker price is only part of it. We compare 10-year fuel, electricity and servicing costs for an EV against an equivalent petrol car using current Australian numbers.
Read article →How to reduce your electricity bill in Australia (2025–26)
The highest-impact, lowest-effort moves Australian households can make in 2025–26 — from tariff swaps to load shifting and small efficiency wins.
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