Solar for all-electric homes in Traralgon
Solar for an all-electric home in Traralgon: sizing for heat pump hot water, electric heating and induction cooking, winter load and battery planning.
An all-electric home in Traralgon needs more solar than a dual-fuel home of the same size, because hot water, heating and cooking all move onto the electricity meter. The extra demand falls hardest in winter, when the panels produce least and the heating runs longest. The right system is sized on what the household will use after the switch from gas, with a plan for a battery if outages or evening use matter to you.
Why is going all-electric becoming the norm in Victoria?
Two state rules set the timing. According to Solar Victoria, from 1 January 2027 all new homes must be built all-electric. From 1 March 2027, existing homes must upgrade gas hot water to an efficient electric option, such as a heat pump, once the gas system reaches the end of its life. The details sit on the Solar Victoria rebate page.
For an existing Traralgon home, the hot water rule means the decision usually arrives when the gas unit fails. Planning solar before that day gives you time to size the system properly instead of buying in a hurry. Many households also swap gas heating and the gas cooktop at the same time to close the gas account altogether.
How does going all-electric change your power use?
| Gas appliance replaced | Electric replacement | Effect on the solar plan |
|---|---|---|
| Gas hot water | Heat pump hot water | Steady daily load that can be timed to run in daylight |
| Gas ducted or space heating | Reverse cycle split systems or ducted heating | Largest winter load, much of it in the evening |
| Gas cooktop and oven | Induction cooktop and electric oven | Short, high draws, mostly at dinner time |
| Gas log fire | Reverse cycle heating or a wood heater | Adds to winter evening demand if electric |
A good provider asks for a winter power bill as well as a summer one. A summer bill alone hides the load that matters most in an all-electric Valley home.
How do Latrobe Valley winters affect solar sizing?
Winter output is the constraint. The climate record for Latrobe Valley Airport near Morwell shows about 18 to 19 rain days in each of June, July and August, so long runs of cloud are normal in the months when heating demand peaks. A system that covers summer use with room to spare can still fall short on a cold, overcast week in July.
The usual response is to size up and accept a larger summer surplus, and to move as much daytime load as possible into the hours when the sun is out. Ask the provider to show the expected output for a winter month as well as the annual total.
How can you use more of your own solar in an all-electric home?
Power used as it is generated avoids buying it back from the grid later. A few habits help once gas is gone:
- set the heat pump hot water timer to run in the middle of the day, when the panels are producing
- preheat the house with reverse cycle heating in the early afternoon on sunny winter days
- run the dishwasher, washing machine and dryer during daylight where you can
- charge an electric car at home in daylight if you work from home or have one parked during the day
Ask the provider whether the inverter or a home energy monitor can show live solar output, so you can see when there is spare power to use.
What size solar system does an all-electric home need?
There is no single answer, and a provider who quotes a size before seeing your bills is guessing. This page uses 7 kW and 10 kW as two reference points for the conversation, and the final figure depends on your bills, roof space and the network approval. For a Melbourne benchmark, Solar Choice’s October 2026 index lists $6,490 to $7,570 per system for 7 kW fully installed, and $8,920 to $10,410 per system once you step up to 10 kW. Bigger systems run into network limits on single phase supply, which a provider will check at the pre-approval stage.
If you already have a small system, adding to it is a separate question covered on the solar upgrades page. A home starting from scratch can read the solar panel installation page first and then request an all-electric solar quote with both bills attached.
Should an all-electric home plan for a battery?
Planning for one makes sense even if you do not buy it on day one. Solar Victoria’s battery buyers guide advises householders to consider changes they may make later, such as switching from gas hot water to a heat pump or adding more panels for a growing family. For an all-electric home, that means choosing an inverter and a switchboard layout that can take a battery without being replaced. Whether a battery pays for itself on savings is weighed on the solar only versus solar and battery comparison.
What happens to an all-electric home in a blackout?
Solar Victoria notes that all-electric homes can be more affected by outages than dual-fuel homes, because electric cooktops, heating and hot water stop working when supply goes. Standard solar switches off during an outage as well. Its power outages page recommends a solar battery with backup functionality, and notes that such systems are usually set up for essentials such as lights and the fridge. Backup design is covered in detail on the battery backup power page.
What about an electric car later?
An electric car is often the next change after the gas appliances go. It can add as much daily use as a heat pump and a cooktop together, depending on how far you drive. If one is likely within a few years, say so in the enquiry. The provider can then leave roof space for extra panels, choose an inverter with headroom, and check that the switchboard has room for a dedicated charger circuit. Charging in daylight on weekends or work from home days uses solar that would otherwise be exported for a low return.
What will a careful provider do before quoting?
Expect the provider to:
- List every gas appliance you have and which ones you plan to replace, and when.
- Read a winter bill and a summer bill, or your interval data, to separate seasonal load.
- Estimate the added load from each electric replacement.
- Check roof faces, shading and space for a larger array.
- Inspect the switchboard for capacity to carry the new circuits.
- Confirm the inverter choice can add a battery later if you want one.
A provider who skips the gas appliance list, or sizes the system on a summer bill, is likely to undersize it for a Valley winter.
How do all-electric new builds differ from retrofits?
Homes being built from 2027 must be all-electric from the start, which suits new estates in towns such as Moe. Older homes converting one appliance at a time need a plan that grows with each change. The independent businesses that receive enquiries from this site assess the home, size the system and carry out the installation under their own licences.
Next step: tell the provider what runs on gas now
The most useful enquiry lists each gas appliance in the home and roughly how old it is: hot water, heating, cooktop, oven. Add a winter power bill (and a gas bill if you have one), photos of the main roof faces and your suburb. Note whether you want battery backup now or later. Then start an all-electric solar enquiry so a provider can size the system around the load you will have.
Frequently asked questions
- Do I have to replace my gas hot water in Victoria?
Under the Victorian rules described by Solar Victoria, from 1 March 2027 an existing home whose gas hot water reaches end of life must replace it with an efficient electric option, such as a heat pump. A working gas unit does not have to be removed early.
- Is a heat pump a good match for rooftop solar?
It can be, because a heat pump can be set to heat water in the middle of the day. A timer that runs it while the panels are producing means most of the hot water energy comes from your own roof.
- Will solar cover my heating in a Traralgon winter?
Rarely all of it. Winter is when output is lowest and heating use is highest, and much of the heating happens after dark. Solar reduces the bill, and a battery or daytime preheating can shift more of the load.
- Should I go all-electric and add solar at the same time?
Doing both together lets the provider size the system on the load you will actually have. If you change appliances one at a time, tell the provider your plan so the inverter and switchboard can cope with later additions.
- What should I send with an all-electric solar enquiry?
A list of gas appliances and their age, a winter electricity bill, a gas bill if you have one, photos of the roof faces and of the inverter if a system is already fitted. Note whether you want backup during outages.