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How we can help

Household Tools

Photo by: Rae Marie Trenoworth

Please donate today to the Future Climate Resilience Project

Help for sustainable homes

Use our free calculators and tools to help you plan a water and energy saving home.

Need more help? Book an Energy Consult with a Renew expert to help you make the right choices about solar, batteries, going off grid, hot water systems, space heating and cooling, general energy efficiency and/or lowering your energy bills.

Free Solar and Battery Calculator

Receive instant email results on sizing grid-connected solar and batteries based on your location, including costs, likely bill savings and payback times.


Renew's solar simulation tool helps households, businesses or community groups plan for grid-connected solar power.


Renew's free online calculator helps you plan a new rainwater tank or improve the performance of an existing tank.

How can we help?