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How Much Does Solar Hot Water Cost?

Solar and heat pump hot water systems typically qualify for 20 to 40 STCs. The market price for STCs varies but is about $30 – 40. So for a system eligible for 30 STCs, at a price of $30 per STC, you would get $900. Different suppliers may quote different amounts for STCs and the amount is subject to change.

Installing a solar hot water system is a great way to save money on your power bill

The price of a Solahart solar hot water heater depends on the model, the size of the system and the type of water heater you are replacing. The type of model appropriate for your home depends on several factors, including what climate zone you live in, your hot water usage and how many people are in your home.

Solar hot water collectors are ideally suited to the climate and bright sunny days typical of Queensland and can provide a reliable hot water service for your home, apartment complex, commercial premises or centre.

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System Size

270 litre split-system solar water heater

300 litre Thermosiphon solar water heater

300 litre Thermosiphon solar water heater
(frost prone areas)

Model Number 272 MLV 302L 302SP
Retail Price
(excl. installation)
$3,422 $4,125 $4,609
Less STC* incentives -$1,036 -$1,036 -$1,036

Excludes installation^, after STC* incentives

$2,386

$3,089

$3,573

*STC government incentives are based on $37per STC (zone 3) and subject to change.
^ Installation prices vary depending on a number of factors – a site visit will confirm this.
Price inclusive of GST and excludes installation

Find out which Solahart is right for your home, contact us for help choosing a model and advice on cost and energy savings and any available rebates and incentives.

Ask an Expert

The best way to find out how much it will cost is to book a Free In Home Solar Quote. Our Solahart Expert will recommend the best system for you and provide an obligation free quote.

Government  Incentives

Under the Small-scale Renewable Energy Scheme, an installation of a solar water heater is entitled to a number of small-scale technology certificates (STCs), depending upon the model of the system and the region in which it is installed.  The table below outlines the STC financial incentives available for the installation of some popular Solahart models.

NSW QLD SA VIC WA TAS NT ACT
Typical Unit
Climate Zone
302L
Zone 3
302L
Zone 3
302L
Zone 3
302SC
Zone 4
302Lg
Zone 3
302SC
Zone 4
302L
Zone 1
302SC
Zone 3
STC Value* $1,036 $1,036 $1,036 $1,110 $1,184 $1,110 $1,073 $1,295

* All values are based on an STC price of $37/STC.  This price is variable and subject to market conditions.

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