Is Solar Hot Water Still Worth It in Brisbane in 2026?
Solar hot water was king in Brisbane 15 years ago. Then heat pumps caught up. Here's the honest 2026 comparison our clients get before they buy.
Upfront Cost (Supplied & Installed)
Solar thermal split: $4,800–$6,200. Heat pump: $3,900–$5,400 after rebates. Gas continuous flow: $2,200–$3,000.
Running Cost Per Year
Solar: $80–$150 (boost only). Heat pump: $140–$220. Gas: $380–$520 depending on family size.
Lifespan & Maintenance
Solar panels last 20+ years but the tank still needs replacement at 10–12 years. Heat pumps are 10–15 years. Both need annual PTR valve checks.
Best Fit By Household
Solar: 4+ person households with north-facing roof space. Heat pump: smaller households, retrofits, or shaded roofs. Gas: renters, unit dwellers, low-hot-water users.
Frequently Asked Questions
Are there still rebates?
Yes — federal STCs apply to both solar and heat pump. Value fluctuates but sits around $700–$1,200 off retail in 2026.