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Solar Hot Water and Heat Pump Hot Water Systems in Wollongong 2026, Costs, STC Rebates, and How to Find a Plumber Near You

Wollongong hot water systems guide 2026: how much solar hot water and heat pump hot water installation costs in Wollongong and the Illawarra after the federal STC rebate, Escarpment shading considerations for solar hot water collectors, and how to find a licensed plumber near you.

By Wollongong Daily · Published 20 July 2026

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This article was written by AI from the linked sources and was not reviewed by a journalist before publishing. The Daily Wollongong is part of The Daily Network and follows our reasonable editorial care.

Solar Hot Water and Heat Pump Hot Water Systems in Wollongong 2026

Wollongong and the Illawarra have an active hot water upgrade market. STC Zone 3 generates a solid federal rebate on both solar hot water and heat pump systems. Wollongong's warm coastal climate is well-suited to both solar hot water and heat pumps. Escarpment-adjacent properties should consider shading from the Illawarra Escarpment when sizing solar hot water collector systems. energy.gov.au

Hot Water System Costs in Wollongong 2026

Electric resistance storage HWS (replacement, supply + install), typically $860-$1,860
Gas continuous flow HWS (replacement, supply + install), typically $1,560-$2,850
Heat pump HWS (after STC rebate, supply + install), typically $1,800-$4,000
Solar hot water system (after STC rebate, supply + install), typically $2,500-$5,500

Escarpment Shading and Hot Water in Wollongong

Wollongong's Escarpment creates shading on west-facing roofs in the afternoon, relevant for solar hot water collectors which benefit from afternoon sun in addition to morning sun. Heat pump hot water systems are an excellent choice for Wollongong Escarpment-adjacent properties where roof shading may limit solar collector output. NSW Fair Trading plumbing licence required for all hot water system installations. fairtrading.nsw.gov.au

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