Why Electric Storage Systems Became So Common

For decades, electric storage hot water systems were the standard choice for new homes across Australia. They're simple, reliable, relatively cheap to purchase and install, and compatible with any property — no gas connection or roof space required. For many households, they did the job without fuss for 10 to 15 years before needing replacement.

The Running Cost Problem

The challenge with standard electric storage systems is that they use a resistive heating element — essentially a large version of a kettle element — to heat water. This is one of the least efficient ways to generate heat from electricity. As electricity prices have risen significantly over the past decade, the running cost of these systems has become a meaningful household expense. A typical electric storage system can cost $700 to $1,000 or more per year to run, depending on household size and usage.

Off-Peak Tariffs: Do They Still Help?

Historically, many electric hot water systems were set up to run on off-peak electricity tariffs — cheaper overnight rates that reduced running costs. These tariffs still exist in Queensland, but the rate difference between peak and off-peak has narrowed in many areas. It's worth checking your current tariff arrangement and whether your system is actually running on off-peak rates, as some systems default to continuous heating over time.

When Electric Still Makes Sense

Standard electric storage isn't always the wrong choice. For investment properties, small households, or situations where a straightforward, low-upfront-cost solution is needed, electric storage remains a practical option. It's also worth noting that a heat pump hot water system uses electricity — but uses it far more efficiently by extracting heat from the air rather than generating it directly. A heat pump can run on the same electricity supply as a standard electric system but at roughly a third of the energy use.

The Upgrade Path Worth Considering

If you're replacing an ageing electric storage system, the replacement is an opportunity to step up to a heat pump. The upfront cost is higher, but government rebates under the Small-scale Renewable Energy Scheme (SRES) can significantly offset this, and the reduction in running costs means most households see payback within a few years. On the Sunshine Coast's mild climate, heat pumps perform very well year-round.

Electric Hot Water Advice from Allied Plumbing

Whether you need a straightforward electric replacement or want to explore more efficient options, Allied Plumbing can walk you through the choices honestly. We install and replace electric hot water systems across the Sunshine Coast and Noosa. Visit alliedqld.com.au or call 0428 411 487.