Luke thought choosing a battery would settle the biggest question about his electricity bills. Then, while comparing installation quotes, he spotted an offer promising free power between 11am and 2pm. His partner, Anna, paused over the advertisement. “Wouldn’t our panels be making electricity then anyway?”
It was a fair point. For homeowners exploring solar battery installation in Sydney with Greenvoy Energy, the value of a free-power plan depends on what their home actually needs.
Luke and Anna are fictional, but their situation illustrates a useful question: will switching reduce the total bill, or simply make three hours look attractive?
Understanding the Solar Sharer Offer in NSW
Introduced on 1 July 2026, the Solar Sharer Offer is an optional electricity standing offer available in Default Market Offer regions, including NSW. Its purpose is to encourage demand during hours when solar electricity is abundant.
Sydney’s designated free period is 11am–2pm every day, measured in local time. The clock hours remain unchanged through daylight saving. Some retailers offer free electricity at different times, so check the details of each plan before making a comparison.
Free Power Has Limits Worth Reading
Under the regulated plan, the first 24 kWh used during the daily free-power period costs nothing. Any usage beyond this limit is billed at the applicable reasonable-use rate. Outside those hours, normal paid tariff periods apply, and the daily supply charge remains.
There is another detail easily missed: appliances on a separate controlled-load circuit do not receive the free-window benefit. This distinction may affect some hot water systems and pool pumps. Check how your appliances are connected instead of assuming every device becomes free to run at lunchtime.
Does Your Sydney Home Qualify?
Eligibility requires a residential account, a smart meter, an eligible location and a retailer offering the SSO. Embedded-network customers are excluded; these arrangements sometimes serve apartments, retirement villages and caravan parks. Electricity retailers serving over 1,000 customers in total across DMO regions are required to make this offer available.
Neither rooftop solar nor a battery is necessary. The offer is open to eligible renters and homeowners, and customers must choose to join. Having your system installed by Greenvoy Energy does not automatically sign you up for the Solar Sharer Offer. Your retailer handles the electricity contract and confirms whether your account qualifies.
Why Solar Battery Owners Need a Closer Look
Anna’s question highlights what homeowners need to consider before switching. If rooftop panels already supply the house at midday, moving an appliance into the free window may not avoid any additional electricity purchase.
The useful comparison is your remaining grid demand after solar and battery operation. Consider whether the battery regularly runs out during dinner, whether winter production leaves spare storage capacity, and whether daytime imports would replace electricity you currently buy later. A generous free-power allowance offers limited value unless your household can put it to good use.
Discuss Grid Charging With Greenvoy Energy
The Australian Government’s guidance suggests using the free-electricity window to charge a home battery. Whether it works for your home depends on the equipment and permitted settings.
When discussing solar battery options with Greenvoy Energy, ask whether the proposed system supports scheduled grid charging. Clarify charging limits, warranty conditions and backup reserves. Filling the battery from the grid before a sunny afternoon may leave less room for rooftop generation, so the schedule deserves thought rather than a permanent midday charging rule.
Storage Size and Charging Speed Are Different
Battery capacity describes stored energy and is measured in kilowatt-hours. Charging power describes the rate at which energy enters the system and is measured in kilowatts. Both influence what you can achieve during a three-hour window.
As an illustrative calculation, charging at a steady 3 kW for three hours supplies 9 kWh before losses, assuming sufficient empty capacity. A larger battery does not change that charging limit. Your inverter configuration, electrical supply and competing appliance loads also affect operation. Before installation, discuss with Greenvoy Energy whether the battery will work with your existing system.
Compare Annual Costs, Including Solar Exports
Free midday usage is only one component of an electricity plan. Examine the daily supply charge, evening and overnight rates, export payments and any additional contract charges. The AER warns that switching from a competitive market offer may not lower bills, even when customers shift consumption.
A reduced solar feed-in tariff can shrink export credits. Higher paid rates can offset savings when stored energy runs out. Compare costs across realistic summer and winter conditions, rather than projecting one particularly good day across the entire year.
A Small Calculation Reveals the Trade-Off
Imagine a household shifts 4 kWh of electricity it previously purchased into the free window. At an assumed previous rate of 30 cents per kWh, the avoided cost is $1.20 daily.
Now suppose the replacement plan adds 50 cents to the daily supply charge and 60 cents to remaining paid usage. The net benefit falls to 10 cents before other changes. These are hypothetical figures, not Greenvoy Energy prices or actual SSO tariffs. Battery losses, export credits and altered consumption still need to enter the calculation.
Which Households May Find More Value?
The offer deserves consideration where a battery often empties during expensive evening periods or where winter solar production leaves it partly charged. An electric vehicle available at home during the window may provide another useful, schedulable load.
Luke and Anna could rarely charge their EV during the weekday free-power window because the car was usually away from home. Laundry offered more flexibility. That is the kind of distinction worth making early: base projected savings on routines your household can maintain. Choosing a larger battery just to use more free electricity may increase installation costs without delivering enough extra savings.
Check Battery Settings and Existing Agreements
A household whose solar already fills its battery and covers most evening demand may gain little from free grid charging. Its current plan could remain preferable if supply charges are lower or export payments are better.
If you have a virtual power plant agreement, review how external dispatch interacts with charging schedules and stored reserves. Ask before changing settings. Backup also needs suitable equipment and configuration; a battery does not automatically keep the house running during a blackout. Discuss that requirement with Greenvoy Energy when considering your system design.
Keep Battery Rebates Separate From Electricity Plans
The Solar Sharer Offer concerns electricity charges. The federal Cheaper Home Batteries Program supports eligible installations through small-scale technology certificates. Consumers commonly assign certificate rights for an upfront discount, although other arrangements exist.
For solar battery installation in Sydney through Greenvoy Energy, request an itemised quote showing the system price, applicable incentive and final payable amount. Ask how your eligible installation can receive its maximum applicable entitlement. The amount depends on scheme rules and system eligibility; it is not a guaranteed government cash refund or an extra reward for choosing the SSO.
Final Thoughts: Make Your Next Step With Greenvoy Energy
Luke and Anna’s next step was to compare their household demand with the proposed battery’s capabilities. The free-power advertisement started the conversation, but the full annual calculation would determine whether switching made sense.
Use Energy Made Easy alongside retailer information, remembering that bills from before installation may not reflect future battery use. Explore Greenvoy Energy’s active monitoring services when discussing ongoing performance. For solar battery installation in Sydney, request a Greenvoy Energy quote and discuss capacity, compatibility and household goals before choosing equipment for your home or changing plans.
Frequently Asked Questions
Q1. Is rooftop solar required for the Solar Sharer Offer?
No. Eligible residential customers can participate without solar panels or a battery. They still need a smart meter and must satisfy the other account requirements.
Q2. What hours are free under the NSW offer?
The regulated NSW window is 11am–2pm daily, using local time throughout the year. Confirm whether your retailer is advertising this offer or a separate market plan.
Q3. Can a home battery store electricity from the free period?
Yes, where the battery system supports grid charging and its settings allow it. Check compatibility, charge limits and relevant conditions before scheduling imports.
Q4. Does choosing the offer guarantee savings?
No. Savings depend on paid imports, supply charges, export credits and actual usage changes. Compare estimated annual costs with your existing plan.
Q5. Can Greenvoy Energy discuss battery suitability before installation?
Yes. Contact Greenvoy Energy about battery options, inverter compatibility and installation requirements. Your electricity retailer should confirm tariff eligibility and the terms of any proposed plan.
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