Solar panel value is changing as large batteries, free midday electricity and lower feed in tariffs reshape how Australian households think about rooftop solar.
If you can charge a large home battery during a free power window, then use that stored energy through the evening, it is fair to ask a new question:
Do you still need solar panels?
At first, the answer may look simple. A large battery can store cheap or free grid electricity. Then, your home can use that stored energy later when electricity costs more. If daytime feed in tariffs keep falling, the old idea of earning money from exported solar feels much weaker.
However, solar panels and batteries do different jobs.
A solar battery stores energy. A solar panel system creates energy. Free midday power can help your household save money, but it does not always replace the long term value of your own rooftop generation.
For many Australian homes, solar panel value no longer comes mainly from selling excess energy back to the grid. Instead, the stronger value comes from using your own power, charging a battery, running daytime loads, supporting EV charging and reducing reliance on future retailer plans.
A Real World Question About Solar Panel Value
A common homeowner question now sounds like this:
If a retailer offers three hours of free electricity in the middle of the day, and a large battery can store that energy for the evening, why install solar panels at all?
That question makes sense.
The Australian Government’s Solar Sharer Offer says eligible households with smart meters will be able to access at least three hours of free electricity in the middle of the day when solar generation is high. The offer is optional and is planned for Default Market Offer areas from 1 July 2026, including South Australia, New South Wales and South East Queensland.
Because of this, the energy conversation is changing. A homeowner may now think less about exporting solar and more about charging a battery during low cost or free periods.
Still, one question matters most:
Will that strategy keep working for your home over the long term?
Why Free Midday Power Changes Solar Panel Value
Free midday power can shift the way homeowners calculate savings.
In the past, many people judged solar by asking how much they could export and how much the retailer would pay them. Today, that thinking is too narrow. Feed in tariffs are often low during daylight hours, so exporting excess power may not deliver the same return it once did.
However, this does not mean solar panel value disappears.
It means the value has moved.
| Old solar question | Better question now |
|---|---|
| How much can I earn from feed in tariffs? | How much grid power can I avoid buying? |
| How much can I export? | How much solar can I use at home? |
| Should I install the biggest system possible? | What system size matches my usage? |
| Is solar worth it by itself? | How do solar, battery and tariff work together? |
| Will panels pay back through exports? | Will panels reduce imports and support future energy needs? |
This shift is important. A solar panel system should not be judged only by export income. It should be judged by how well it supports your real household energy pattern.
Solar Panels Still Create Energy You Own
A battery can be valuable, but it does not create electricity by itself.
It needs energy from somewhere. That energy can come from the grid, your solar panels or both. If the grid offers free electricity for a few hours, your battery can use that opportunity. However, your home still depends on the rules of the retail plan.
Solar panels give you another source of energy. They produce power on your roof during daylight hours. That energy can run appliances, reduce grid imports, charge your battery and support larger household loads.
This matters because free power windows may not cover the whole day. For example, your home may use power in the morning before the free window starts. It may also need energy in the afternoon after the free window ends. A solar panel system can still help during those periods.
This is why solar panel value now depends less on export income and more on how your home uses energy across the day.
Low Feed In Tariffs Do Not Make Solar Panels Pointless
Low feed in tariffs can weaken the case for oversized solar systems that rely heavily on exports.
However, they do not remove the value of using solar power inside your home.
If your household runs air conditioning during the day, works from home, uses a pool pump, charges an EV or heats water with electricity, rooftop solar can still offset real grid usage. That direct use often matters more than export income.
For example, a homeowner who works from home may run cooling, computers, kitchen appliances and laundry during daylight hours. In that case, solar panels can reduce paid imports even if the feed in tariff is low.
The same logic applies to homes with EVs. If you can charge your vehicle during sunny periods, your solar panel system can reduce both home energy costs and transport energy costs.
So, the better question is not whether feed in tariffs are generous.
The better question is whether your home can use the energy your panels produce.
When a Battery First Strategy Can Work
A battery first strategy can work for some households.
For example, a home with low daytime usage, a large battery, a suitable inverter and access to a reliable free power window may reduce evening grid costs by charging from the grid during cheap or free periods.
This can suit homes that use most of their electricity after sunset. It can also suit households that cannot install many panels because of roof space, shading or body corporate restrictions.
However, this approach depends heavily on tariff rules.
If the retailer changes the plan, shortens the free window, adds limits or adjusts peak rates, the savings may change. In addition, a large battery needs enough charging power to fill during the available window.
A battery first setup can work, but the solar panel decision still depends on your daily usage pattern, not only the promise of free electricity.
Why Solar Panels and Batteries Often Work Better Together
For many homes, the strongest setup is not solar alone or battery alone. It is a well matched solar and battery system.
Solar panels produce energy during the day. The battery stores unused energy for later. Together, they can reduce how much electricity your home buys from the grid.
This combination becomes useful when your home has high daytime or evening demand. Air conditioning, EV charging, electric hot water, pool pumps and home office loads can all change the numbers.
A battery can also help you use more of your own solar instead of exporting it cheaply. Meanwhile, solar panels can top up the battery outside the free power window.
If you are comparing battery ready options, explore Solar Rains’s Residential Battery & Inverter range here.
Solar Panel Size Matters More Than Ever
The question is not always whether you should install solar panels.
Often, the better question is:
How much solar panel capacity does your home actually need?
A very large system may not suit every household, especially if daytime usage is low and feed in tariffs are weak. However, a system that is too small may not generate enough energy for a battery, EV charging or future electrification.
This is where solar panel value becomes more personal.
A low usage home may only need a modest system. A high usage home may need more panels because it runs air conditioning, works from home, charges an EV or uses electric hot water.
Future energy needs matter too. If you plan to add an EV, induction cooking, heat pump hot water or more electric appliances, your household demand may increase. In that case, a slightly larger solar panel system may give your home more flexibility.
Can You Charge a Large Battery in Three Free Hours?
A large battery does not automatically charge fully during a short free power window.
The result depends on your inverter, battery capacity, grid connection, household load and the retailer’s plan rules. This is one part of the decision where a table helps, because several technical factors interact at once.
| Factor to check | Why it matters |
|---|---|
| Battery capacity | A larger battery needs more energy to fill |
| Inverter charge rate | This limits how quickly the battery can charge |
| Single phase or three phase power | Your connection can affect import and charging behaviour |
| Household load during the free window | Appliances may use some free power before the battery stores it |
| Battery state of charge | A partly full battery cannot absorb as much energy |
| Retailer plan rules | The free window may include limits or fair use conditions |
| Conversion losses | Some energy is lost during charging and discharging |
For example, a 50 kWh battery may sound powerful, but a three hour window may not fill it if the inverter cannot charge fast enough. If your home is also running air conditioning, hot water or EV charging at the same time, even less energy may go into storage.
Before buying a large battery, ask your installer to model how much energy your system can realistically charge during the free period.
Why Free Midday Power May Not Last Forever
Free midday power exists because the grid can have a lot of solar generation during parts of the day.
However, energy plans can change. Retailers may update pricing. Fair use caps may apply. Network conditions may shift as more households install batteries and charge them during the same window.
That does not mean free power offers are bad. They can be useful. Still, your whole system should not depend on one tariff staying the same forever.
Solar panels can reduce that risk because they create energy on site. Even if your retail plan changes, your roof can still produce power during daylight hours.
This is another reason solar panel value remains relevant. Rooftop solar gives your home more options when the market changes.
When Solar Panels May Still Be Worth It
Solar panels may still be worth it when your home uses a meaningful amount of electricity during the day or can store that energy for later.
They may also make sense if you want more independence from future electricity plan changes. A battery charged only from the grid depends heavily on tariff rules. A battery charged partly from your solar panels has more flexibility.
Solar panels may suit your home if you:
- Use air conditioning during daylight hours.
- Work from home.
- Run a pool pump.
- Use electric hot water.
- Charge an EV at home.
- Want to top up your battery outside the free window.
- Expect household electricity demand to increase.
- Want less exposure to future tariff changes.
In these cases, solar panel value comes from self consumption and flexibility, not just export income.
When Solar Panels May Be Less Urgent
Solar panels may be less urgent for some households.
If your energy usage is low, your roof space is limited, your daytime loads are small and your battery can charge cheaply from the grid, a large solar panel system may not be the first priority.
This does not mean solar panels have no value. Instead, it means the right system may be smaller or staged.
For example, a homeowner may start with a battery focused setup if their main goal is to shift free or cheap grid power into evening use. Later, they may add or expand rooftop solar if they buy an EV, change appliances or use more power during the day.
A flexible plan usually works better than a one size fits all answer.
The Inverter Can Decide Whether the Strategy Works
The inverter controls how energy moves between your solar panels, battery, home and the grid.
Because of this, inverter choice can affect the entire strategy. A weak or mismatched inverter may limit charging speed, discharge power, backup capability or solar integration.
This matters even more if you want to combine rooftop solar, a large battery and a free power window. Your system needs to charge at the right time, discharge at the right time and support your household loads properly.
If your system needs a compatible inverter, you can review the Solar Rains Deye range here.
How to Decide Between Solar Panels, Battery or Both
Before you choose a system, start with your usage data.
Do not base the decision only on hype, rebates, feed in tariffs or one retailer plan. Instead, check how your home uses energy across the day.
This table is worth keeping because it gives the reader a practical decision checklist.
| Question to ask | Why it matters |
|---|---|
| How much electricity do you use each day? | This helps size both panels and battery storage |
| When do you use the most power? | Daytime and evening loads need different solutions |
| Can you shift loads into the free power window? | Appliances, EVs and hot water can change the value |
| Do you need backup power? | Backup may justify a battery even with slower payback |
| Do you have an EV now or later? | Future charging can change the right system size |
| How much usable roof space do you have? | Roof limits affect solar panel capacity |
| What inverter charge rate do you need? | Charging speed can determine battery value |
| How stable is your chosen retail plan? | Tariff risk affects long term savings |
A good installer should compare more than one option. For example, you may want to see solar only, battery only and solar plus battery. That comparison helps you understand which setup matches your home.
The Best Solar Panel Decision Comes From Your Usage Data
Generic advice does not work well in the new energy market.
One homeowner may save more from a large battery and a clever tariff. Another may save more from rooftop solar because they use energy all day. A third may need both because they have EV charging, air conditioning and heavy evening loads.
This is why solar panel value should be judged through your own data.
Look at your bills. Check your daily usage. Review your smart meter data if available. Then, compare how much energy you use in the morning, middle of the day, evening and overnight.
Once you understand that pattern, the right system becomes clearer.
Conclusion
Solar panel value is changing, but solar panels are not automatically becoming pointless.
Large batteries and free midday electricity can help some households shift energy use and reduce evening grid costs. However, a battery only stores energy. It does not create it. Solar panels still produce power on your roof, support daytime loads, help charge batteries, reduce reliance on changing retailer plans and prepare your home for future electrification.
The old feed in tariff argument may be weaker now. However, the self consumption argument is still strong for many homes.
If your household uses a lot of energy, works from home, runs air conditioning, charges an EV or wants long term flexibility, solar panels can still play an important role. If your usage is low and your tariff makes grid charging attractive, a smaller solar system or staged approach may make more sense.
The best solar panel decision comes from your usage data, not from a generic rule about batteries or tariffs.
In the new energy market, the winning setup is not always the biggest solar system or the largest battery.
It is the system that matches your home.
FAQs
Yes, solar panels can still be worth it for many homes. Free midday power may reduce the value of some daytime generation, but solar panels still help with self consumption, battery charging, EV charging, air conditioning and long term protection from tariff changes.
In some cases, you can use a battery to charge from the grid during cheap or free periods. However, the value depends on your retailer plan, smart meter access, inverter charge rate, battery size and household usage. Solar panels can add flexibility because they create energy on site.
No. Low feed in tariffs reduce the value of exporting excess solar, but they do not remove the value of using solar power inside your home. Self consumption often matters more than export income.
Not always. A large battery only helps if you can charge it and use the stored energy. More solar panels may help if you have high daytime loads, EV charging, electric hot water or a battery that needs regular top ups.
The best setup depends on your usage. Many homes benefit from a balanced solar and battery system, while some low usage homes may prefer a smaller solar panel system and a well sized battery. The right answer comes from your energy data, not a generic rule.
