From Generation to Optimisation: Maximising Solar Value with Heat Pumps and Smart Load Control
The role of solar installers is evolving. It’s no longer just about generating energy, it’s about helping customers maximise the value of that energy.
As feed-in tariffs continue to decline, the focus has shifted towards increasing self-consumption and reducing reliance on the grid. This means aligning solar generation with the largest energy loads within the home, and one of the biggest opportunities lies in hot water.
Traditional hot water systems remain a major energy drain
Hot water typically accounts for 25–30% of a household’s total energy consumption, making it one of the home’s largest and most consistent energy uses.
Yet many households still rely on inefficient systems that operate independently of solar production. Gas storage systems continuously consume energy, while conventional electric resistance systems often heat water during peak tariff periods.
This creates a common inefficiency in solar homes: excess solar is exported to the grid during the day at relatively low feed-in tariff rates, while electricity is later purchased back from the grid at a much higher cost to heat water.
As customers become more focused on electrification and energy savings, installers are increasingly expected to deliver smarter solutions that address this imbalance.
Reframing hot water as a solar asset
Heat pumps fundamentally change the role of hot water within the home.
Rather than generating heat through resistive elements, heat pumps transfer ambient heat from the air, making them significantly more efficient than conventional electric storage systems. In many cases, they can reduce hot water energy consumption by up to 80%.
More importantly, some heat pumps like those from Emerald allow households to use excess solar generation to heat and store water during the day, effectively turning the hot water system into a form of thermal energy storage.
By shifting hot water heating into solar production periods, households can:
- increase solar self-consumption
- reduce reliance on grid electricity
- lower operating costs
- shorten payback periods
For installers, this creates a stronger value proposition that extends beyond panel generation alone.
Taking optimisation further with smart load control
The value of solar increases further when energy use can automatically respond to solar production in real time.
Smart load control helps households direct excess solar generation toward compatible appliances such as heat pumps and air conditioning systems, reducing unnecessary grid exports and increasing self-consumption without requiring manual intervention.
This creates a more efficient and automated home energy system while helping customers maximise the return on their solar investment.
For installers, intelligent load control represents an opportunity to move beyond competing solely on system size or price. Instead, it enables a stronger focus on delivering lower operating costs, greater energy independence, and more complete home energy solutions.
Delivering smarter home energy solutions with Emerald
Emerald’s heat pump and Solar Soaker solutions are designed to help installers maximise the value of solar generation through intelligent energy management and load optimisation.
By combining high-efficiency heat pumps with smart load control, installers can better align hot water heating with solar production, helping households increase self-consumption and reduce reliance on the grid.
As an Australian-owned and engineered company, Emerald accounted for 34% of all residential heat pumps sold in Victoria last year, highlighting growing demand for integrated home energy solutions. With increasing pressure on households to maximise solar savings, technologies that support smarter energy usage and automation are becoming an important part of modern solar installations. You can now use Emerald heat pump and optimisation solutions in your next projects. Create your free OpenSolar account today.
