You've Already Got Solar in Melbourne — Now Let's Put It to Work Overnight
With feed-in tariffs averaging $0.04–$0.10/kWh in VIC, the value of exporting excess solar is declining. A battery lets you use what you generate instead of selling it cheap.
This page provides educational content only and is not financial advice. Property details and installation requirements affect the final installed price.
Homes Like Yours
Based on your inputs, you're likely in a similar situation to these households:
- A 3-bedroom home with a 6.6kW system installed 3–5 years ago, looking to stop exporting cheap and start storing
- A household that uses most energy in the morning and evening, letting afternoon solar export go to waste
- A family that has experienced at least one extended blackout and wants backup capability
- A home with a controllable load like a pool, hot water system or EV that could benefit from battery automation
Energy Context: Melbourne VIC
Avg Grid Tariff
$0.27–$0.34/kWh
Feed-In Rate (typical)
$0.04–$0.10/kWh
Peak Sun Hours / Day
4.1 hrs
Melbourne's variable weather — 'four seasons in one day' — means solar generation can vary significantly day to day. Despite fewer peak sun hours than northern states, quality systems still deliver strong ROI. Winter heating costs are a real factor for many households.
Top challenge for Melbourne solar buyers:
Lower sun hours than QLD/WA mean system sizing matters more. Households often undersize, reducing overall savings potential.
What this means for system design:
For Melbourne homes, a slightly larger system (6.6–10kW) helps compensate for lower sun hours. Battery storage is increasingly popular for morning/evening energy use.
Available incentives in VIC:
- Federal STCs — reduces upfront cost on supply and install
- Victorian Energy Upgrades (VEU/VEEC) scheme — rebates on air conditioners and heat pumps
- Solar Victoria Solar Panels Rebate — up to $1,400 off solar (eligibility criteria apply)
- Solar Victoria Battery Loan — interest-free loans up to $8,800 (check current availability)
Representative modelled scenario
A household with an existing 6.6kW solar system exports roughly 60–70% of generation in summer. At a feed-in rate of $0.07/kWh, that export earns approximately $3–4 per day. If a 10kWh battery captured that energy instead, and the household's evening rate is $0.30/kWh, the value of that stored energy could be approximately $3.00 per day — but avoiding grid purchases rather than earning export income. This is a representative modelled scenario only. Actual figures depend on your system, tariff, usage patterns, and battery performance. Installer verification is recommended before any purchasing decision.
What Battery Capacity Suits Your Home?
Battery sizing depends on how much unused solar you currently export and what your evening grid usage is. A common starting point for Australian homes is 10–15kWh of usable storage.
- Export heavy in afternoons? A 10–13kWh battery typically captures most of that energy
- Large evening load (pool, hot water, heavy AC)? Consider 13–20kWh
- Primarily want blackout protection? Even a smaller battery (5–10kWh) may suffice
- Check whether your existing inverter is hybrid-ready — DC-coupled batteries are cheaper to add if it is
- AC-coupled batteries (like Tesla Powerwall) work with any existing inverter
Brand Range Guidance
Budget-range batteries such as Pylontech and Solis-based systems offer solid LFP chemistry at accessible prices. Warranty terms (typically 10 years or 6,000 cycles) are important to verify. These are generally AC-coupled systems.
Value-range batteries from Goodwe, Sungrow, and Fox ESS offer a strong balance of performance and price. If your existing inverter is Goodwe or Sungrow, a compatible hybrid inverter + battery may be the most cost-effective upgrade path.
Premium options include the Tesla Powerwall 3 (AC-coupled, broad compatibility), Sigenergy (all-in-one system, excellent monitoring), and Enphase IQ Battery (microinverter-compatible). These typically carry stronger software ecosystems and VPP partnership options.
Questions to Ask Your Installer
Use these questions during your installer conversations. A good installer will welcome them.
- 1Is my current inverter hybrid-ready, or will I need a new inverter with the battery?
- 2What is the usable capacity vs gross capacity of the battery being quoted?
- 3What is the warranty — years and cycle count?
- 4Is this battery eligible for any VPP (Virtual Power Plant) programs in my state?
- 5What is the continuous power output — will it run my essentials during a blackout?
- 6Is the battery rated for outdoor installation in my climate?
Ready to plan your system?
Based on your profile as a Battery Curious Upgrader in Melbourne VIC, Jousto can help you explore options and continue toward installation with a local dealer in our network.
Frequently Asked Questions
Disclaimer: The content on this page is for educational purposes only and does not constitute financial advice, electrical design advice, or a guarantee of savings or system performance. All modelled scenarios are representative examples only and are not based on specific properties or customers. Actual system performance, savings, payback periods, and rebate eligibility depend on your individual property, usage pattern, tariff structure, and installer design. Rebate programs and tariffs change frequently — check current availability with your provider or state government. Ask an accredited local dealer for a written, property-specific installed-price proposal before making a purchasing decision. Jousto supports your choices; local dealers in our network handle site checks and installation. Jousto is not responsible for installer workmanship or system performance and holds no financial services licence. Nothing on this page constitutes financial advice.