In Geelong, a basic electric storage system may cost around $1,500–$3,000 installed, while gas, heat-pump and solar systems can range from roughly $2,000 to $8,000 or more. The final price depends on the system size, plumbing or electrical changes, removal of the old unit, access to the property and any available rebates. Ask a licensed plumber for itemised quotes, and compare running costs as well as the upfront price. Rebates and eligibility can change, so check current Victorian government information before choosing a system.