As a rough guide, a standard electric storage system may cost about $1,200–$2,500 installed, while heat-pump systems can be around $2,500–$5,500 and solar hot water systems commonly cost more. The final price depends on system size, brand, plumbing changes, electrical work, access and whether the existing unit needs removal. Rebates or discounts may be available, but eligibility and savings depend on the current scheme and your circumstances. Ask a licensed Sunshine Coast plumber for an itemised quote and check current Queensland and Australian Government information before choosing a system.