Australian electricity prices have been among the most volatile in the world over the last few years. If you've been watching your quarterly bills climb, you've probably wondered: does higher electricity make solar better or worse value? The answer is unambiguously better.
The Simple Logic
Solar saves you money by replacing grid electricity with free solar electricity. The value of each solar kilowatt-hour equals whatever you'd otherwise have to pay for it. If grid electricity goes from 28c to 38c per kWh, your solar savings go up by 35% without any change to your system or your usage patterns.
Higher electricity prices are good for solar ROI. Lower electricity prices would reduce solar ROI. Given the long-term trajectory of Australian electricity prices, which have roughly doubled over the past 15 years and are forecast to remain elevated, solar becomes more valuable over time rather than less.
Current Electricity Prices in Australia (2026)
Retail electricity prices in Australia in 2026 vary significantly by state, but the general range for residential customers is:
- South Australia: 40–55c/kWh — the most expensive in the country
- Victoria: 32–42c/kWh
- New South Wales: 30–40c/kWh
- Queensland: 28–38c/kWh (varies between Ergon/Energex regions)
- Western Australia: 30–38c/kWh (Synergy)
- Tasmania: 24–30c/kWh — lowest in mainland/island Australia
Plus a daily supply charge of around $0.80–$1.50 regardless of usage.
The Price Sensitivity of Solar
For a 6.6kW system that self-consumes 40% of its output (a reasonable assumption for a working household), annual self-consumed energy is roughly 4,000 kWh. At 28c/kWh that's $1,120 in annual savings. At 38c/kWh it's $1,520. The same system, 35% more value per year — which meaningfully shortens the payback period.
In South Australia, where rates are highest, the economic case for solar (and battery) is the strongest in the country. It's no coincidence that SA has the highest solar and battery penetration rates in Australia.
Should You Wait for Prices to Come Down?
Every year you delay solar, you pay full grid prices for your electricity. If your current bill is $400/quarter and solar would reduce it to $100/quarter, delaying by 12 months costs you roughly $1,200 in bills you didn't need to pay.
The only good reason to delay is if you expect system prices to fall materially in the near future. Panel prices have been broadly stable since 2022, and there's no strong signal of a major price drop coming in 2026–2027. The STC rebate decreases every year (it ends in 2031) — waiting reduces the rebate available to you.
The financial case for solar in 2026 is strong. The case for delaying is weak. Upload your bill to GridBeater and we'll show you exactly what the savings look like for your situation — right now.
See what solar saves you at today's electricity prices → Upload your bill free at GridBeater