Based on: 25 kWh/day usage · 8 kW solar · 5 kWh battery · typical tariffs

Solar & Battery Savings in Melbourne & VIC Get quotes from local installers

Design solar and battery systems for Victoria using Photonik's professional design platform. Victoria's Solar Homes Program provides rebates up to $1,400 for solar panel installations, plus interest-free loans, making solar adoption more accessible than ever. The state is also investing heavily in Renewable Energy Zones (REZs), planning to add up to 10 GW of renewable capacity by 2035.

Solar Energy Savings in Victoria

How Solar Reduces Your Electricity Bills

The calculations below show how your electricity bills change with solar.

Calculating...

Based on: 25 kWh/day usage · 8 kW solar · 5 kWh battery · typical tariffs

Adjust these amounts in the next section

Old Bill (Before Solar): Monthly: 181.0 | Annual: 2166.0

New Bill (With Solar): Monthly: 75.0 | Annual: 900.0

Monthly Savings: $ 105.0 | Annual: $1266.0 | Bill Savings: 58%

Monthly Savings

$ 105.0

Annual savings: $1266.0 | Bill Savings: 58%

What drives your savings in Victoria

Victoria's Solar Homes Program offers rebates and interest-free loans, reducing upfront costs for solar-battery systems. Retail rates of 26–32c/kWh make self-consumption valuable, while standard feed-in tariffs have dropped to 4–5c/kWh. However, battery owners can access wholesale export pricing through certain retailers, earning significantly more during peak demand — often 20–40c/kWh between 4–8pm. Melbourne receives moderate irradiance of around 4.2 kWh/m²/day, with regional Victoria slightly higher.

Your usage & system size Victoria

Energy usage & tariffs

Energy consumption patterns in Victoria reflect the state's temperate climate, with higher heating needs during cold winters and cooling needs during hot summers. The average Victorian household uses between 20-30 kWh per day, with Melbourne properties typically consuming more during winter months for heating. Energy-efficient properties throughout Victoria often use significantly less through modern insulation, efficient heating systems, and double-glazed windows.

Before installing solar, consider reducing your energy consumption through improved insulation and energy-efficient appliances. This is particularly valuable in Victoria, where the Solar Homes Program can provide rebates and interest-free loans, and reducing consumption can lower the required system size and improve returns.

Daily Energy Usage: 25 kWh (~$181.0/month)

5 kWh 100 kWh

Electricity Cost

$ /kWh

Sell Price (FiT)

$ /kWh

Self Use %

lightbulb Note: These are simplified estimates. For detailed tariff inputs and advanced calculations, use the full Photonik app.

Representative flat export rate (feed-in tariff). What you earn per kWh of surplus solar exported to the grid. Your actual rate depends on your provider, plan, and time of day.

See how export rates work →

Estimated at 75% of the retail grid rate. A battery lets you store daytime solar and export during expensive peak hours, so each exported kWh is typically worth more than a flat feed-in tariff. Real returns depend on your time-of-use tariff and battery efficiency.

See how export rates work →

Solar system size

You'll need around 6.6kW of solar to match your average consumption in Victoria. We recommend sizing between 9.9kW and 13.2kW for optimal results, accounting for daily and seasonal variations. Victoria benefits from good solar potential, with Melbourne averaging around 3.8-4.2 kWh/kW/day annually, though generation is lower during winter months compared to northern states.

A 9.9 kW system in Victoria generates approximately 41.7 kWh daily on average, with seasonal variation from 3.23 kWh/kW/day in June to 4.80 kWh/kW/day in February. Victoria's solar potential, combined with the Solar Homes Program rebates and competitive installation costs, makes solar particularly attractive for homeowners across the state.

Solar System Size: 8 (34 kWh/day)

1 kW 20 kW

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A 8 kW system in Victoria can generate approximately 12288.0 kWh annually based on local sun conditions.

Battery storage

With solar-only (no battery), a 9.9 kW system provides approximately 50% self-usage in Victoria, depending on your consumption patterns, drawing 50% from the grid. Adding a 10 kWh battery increases energy independence to approximately 86% annually, reducing grid reliance to 14%. Battery storage is valuable in Victoria, allowing you to store excess summer generation for use during darker winter months and maximising the value of your solar investment.

Standard flat-rate feed-in tariffs have fallen below retail rates in most states, but homeowners with batteries can now access wholesale export pricing through certain retailers and virtual power plant schemes. During peak demand periods (typically 4–8pm), wholesale rates can reach 20–40c/kWh or higher — fundamentally changing battery payback compared to a fixed feed-in tariff. For accurate battery savings and ROI calculations specific to your state and retailer, use the full Photonik design tool.

Battery Size: 5 kWh

0 kWh 30 kWh

lightbulb A 0kWh battery will make you about 0% self sufficient.

The sweet spot for most households is 5 – 13 kWh — larger batteries add independence but with diminishing payback, especially where feed-in tariffs are low.

System Pricing & Payback for Victoria

Use the full Photonik solar planning and design platform to model a complete system for your home — including detailed costs, equipment options, and financial returns.

Try Photonik Solar Design

For a quick price guide, see the Australia solar calculator.