Installing solar changes where your electricity can come from.
Instead of purchasing all of your electricity from the grid, your home may generate some of its own electricity through rooftop solar.
If a battery is installed, some of that energy can also be stored for later.
But there is another question that is often overlooked:
When should your home use solar, battery or grid electricity?
This is where energy management becomes important.
Solar Generation Changes Throughout the Day
Solar production is not constant.
It generally increases after sunrise, reaches stronger production during suitable daylight hours and then falls as the sun sets.
Your household electricity demand follows a different pattern.
You might use relatively little electricity while everyone is away, then use considerably more in the evening.
Energy management looks at this relationship between generation, storage and consumption.
What Happens to Excess Solar?
If your solar system is generating more electricity than your home is using, the excess may be exported to the grid or stored in a battery, depending on your system.
A battery can store some of that energy for later use.
Australia's rapid growth in household batteries shows how significant this type of energy management has become. The Clean Energy Regulator reported more than 400,000 battery systems nationally by mid-May 2026, with battery installations continuing at high levels.
A Battery Doesn't Automatically Solve Everything
Adding a battery is not the same as having a complete energy management strategy.
The battery needs to be appropriately sized and configured for the property's energy use.
For example, a household may generate plenty of solar electricity but still purchase grid electricity in the evening because most of its solar generation occurs while nobody is home.
A battery may help shift some of that energy from daytime to evening.
But the best configuration depends on the home's consumption pattern, battery capacity, solar generation, electricity plan and system settings.
What About EVs and Hot Water?
Modern energy management can go beyond solar and batteries.
An EV, electric hot water system, air conditioner and other controllable loads can all become part of the home's broader energy system.
Instead of using electricity whenever each appliance independently demands it, some loads can potentially be scheduled around available solar generation, electricity prices or battery conditions.
The Australian Government's consumer energy resources framework specifically includes solar, batteries, EV chargers and connected appliances as technologies that can generate, store and manage electricity.
WA Homes Are Becoming More Energy-Connected
Western Australia's 2026 changes to solar and battery requirements also reflect the move toward more flexible energy systems.
From 1 May 2026, new or upgraded solar and battery systems on the SWIS need to meet modern grid requirements, with systems up to 30 kVA able to be connected under the updated framework, subject to the applicable requirements.
For homeowners planning a solar or battery upgrade, this makes it useful to consider not only the equipment being installed today, but also how the system could interact with future energy technologies.
FAQ
What does home energy management mean?
It means monitoring and coordinating electricity generation, storage and consumption within a property.
Can energy management reduce electricity purchases?
It can help households use available solar generation and stored energy more strategically, although the actual effect depends on the system and household usage.
Do I need a battery for energy management?
No. Energy management can involve solar, appliances, EV charging, hot water and other loads. A battery is one possible component.
Instead of purchasing all of your electricity from the grid, your home may generate some of its own electricity through rooftop solar.
If a battery is installed, some of that energy can also be stored for later.
But there is another question that is often overlooked:
When should your home use solar, battery or grid electricity?
This is where energy management becomes important.
Solar Generation Changes Throughout the Day
Solar production is not constant.
It generally increases after sunrise, reaches stronger production during suitable daylight hours and then falls as the sun sets.
Your household electricity demand follows a different pattern.
You might use relatively little electricity while everyone is away, then use considerably more in the evening.
Energy management looks at this relationship between generation, storage and consumption.
What Happens to Excess Solar?
If your solar system is generating more electricity than your home is using, the excess may be exported to the grid or stored in a battery, depending on your system.
A battery can store some of that energy for later use.
Australia's rapid growth in household batteries shows how significant this type of energy management has become. The Clean Energy Regulator reported more than 400,000 battery systems nationally by mid-May 2026, with battery installations continuing at high levels.
A Battery Doesn't Automatically Solve Everything
Adding a battery is not the same as having a complete energy management strategy.
The battery needs to be appropriately sized and configured for the property's energy use.
For example, a household may generate plenty of solar electricity but still purchase grid electricity in the evening because most of its solar generation occurs while nobody is home.
A battery may help shift some of that energy from daytime to evening.
But the best configuration depends on the home's consumption pattern, battery capacity, solar generation, electricity plan and system settings.
What About EVs and Hot Water?
Modern energy management can go beyond solar and batteries.
An EV, electric hot water system, air conditioner and other controllable loads can all become part of the home's broader energy system.
Instead of using electricity whenever each appliance independently demands it, some loads can potentially be scheduled around available solar generation, electricity prices or battery conditions.
The Australian Government's consumer energy resources framework specifically includes solar, batteries, EV chargers and connected appliances as technologies that can generate, store and manage electricity.
WA Homes Are Becoming More Energy-Connected
Western Australia's 2026 changes to solar and battery requirements also reflect the move toward more flexible energy systems.
From 1 May 2026, new or upgraded solar and battery systems on the SWIS need to meet modern grid requirements, with systems up to 30 kVA able to be connected under the updated framework, subject to the applicable requirements.
For homeowners planning a solar or battery upgrade, this makes it useful to consider not only the equipment being installed today, but also how the system could interact with future energy technologies.
FAQ
What does home energy management mean?
It means monitoring and coordinating electricity generation, storage and consumption within a property.
Can energy management reduce electricity purchases?
It can help households use available solar generation and stored energy more strategically, although the actual effect depends on the system and household usage.
Do I need a battery for energy management?
No. Energy management can involve solar, appliances, EV charging, hot water and other loads. A battery is one possible component.