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Solar vs Grid Electricity
Thinking about installing solar but unsure what financial assistance is available? Understanding solar incentives and rebates can significantly reduce the upfront cost of your solar investment and improve your return on investment from day one.
Australia offers some of the most attractive renewable energy incentive programs in the world. Homeowners and businesses can access a range of government-backed rebates and certificate schemes designed to encourage the adoption of solar power, battery storage, and energy-efficient technologies.
At Amazon Energy, we help customers across Melbourne and Australia navigate these programs with confidence. From the STC scheme and Victorian Energy Upgrades Program to battery incentives and commercial energy efficiency certificates, our team manages the paperwork and application process so you can focus on enjoying lower electricity bills.
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Solar vs grid electricity: understanding the difference
When you buy electricity from the grid, you pay your retailer a rate that includes generation costs, network charges, and retail margins. In Victoria in 2026, that rate has risen consistently year on year as ageing infrastructure requires ongoing investment.
Solar vs grid electricity is no longer a close contest for most Melbourne households. When you generate your own solar power, every kilowatt-hour your panels produce and your household uses is a kilowatt-hour you do not buy from the grid. That self-consumed solar is worth significantly more in savings than you'd earn by exporting the same energy back to the grid. The maths strongly favours using your solar output yourself first.
At Amazon Energy, we have been designing solar systems for Melbourne homes and businesses since 2015. Every system we install is sized to maximise self-consumption for your specific usage patterns, roof orientation, and budget, because that's where the real financial returns are found.
How much can a Melbourne household save by switching from grid to solar?
A typical Melbourne home uses a moderate amount of electricity per day. A well-sized 6.6 kW solar system in Melbourne generates strong daily output in summer and somewhat less in winter. If you self-consume the majority of that generation and export the rest, most households see meaningful annual electricity bill savings depending on usage patterns and retailer plan.
Most Melbourne households achieve a payback period of three to five years. After that, your panels continue generating power for another 20 or more years. That's decades of electricity at effectively zero marginal cost, compared to a grid bill that will keep rising every year you remain connected without solar.
For businesses, the returns are often faster. Commercial electricity rates are frequently higher than residential rates, daytime operations align perfectly with peak solar generation, and the system can be depreciated as a business asset, adding a tax advantage on top of the energy savings.
Feed-in tariffs vs self-consumption: where the real value is
A decade ago, Australian homeowners could earn a strong return for solar they exported to the grid under premium feed-in tariff programs. Those days are long gone. In Victoria in 2026, standard feed-in tariffs sit well below what you'd save by using that same energy yourself, with occasional higher offers that come with trade-offs in other parts of the plan.
This shift has changed the optimal solar strategy. Exporting excess solar to the grid is far less valuable than it used to be. The smart approach is to design your system and your household habits around using as much of your own solar as possible. Running your dishwasher, washing machine, pool pump, and hot water system during daylight hours captures the full retail-rate saving rather than the much smaller export credit for the same energy.
Victoria's feed-in tariff in 2026
The Essential Services Commission sets a minimum feed-in tariff for Victoria each year. In 2025/2026, the minimum rate dropped to reflect falling wholesale solar prices during daylight hours. Some retailers offer variable or time-varying FiTs that pay more for energy exported during the morning and evening peaks. Amazon Energy can advise on which retailer plans pair best with your system design.
The cost of grid electricity vs solar: rate comparison
The single most important factor in the solar vs grid electricity debate is the gap between what you pay for grid power and what you save by generating your own.
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Grid rate (retail): the rate you pay your retailer for every kilowatt-hour, and the highest of the three
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Self-consumed solar: effectively free after payback
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Feed-in tariff (export): the lowest of the three, and falling
The self-consumption advantage
Every kilowatt-hour of solar you use in your own home or business saves you the full retail rate. Exporting that same kilowatt-hour earns only a fraction of that. Self-consumption is several times more valuable than export. Amazon Energy sizes and orients every system to maximise your self-consumption first.
Solar vs grid electricity: who benefits most in Melbourne?
Families at home during the day
High daytime usage from appliances, heating, and cooling aligns perfectly with solar generation, maximising self-consumption and savings.
Small and medium businesses
Daytime operations, high energy use, and commercial tariff rates mean faster payback and larger savings than most residential installations.
EV owners
Charging an electric vehicle at home during the day using solar rather than grid power delivers meaningful savings on fuel and electricity costs each year.
Solar plus battery households
Combining a 6.6 kW or 13.2 kW system with a Tesla Powerwall 3 gives near-independence from the grid across most of the year.
Battery storage: the tipping point in the solar vs grid debate
Battery storage is what closes the gap between solar and the grid entirely. Without a battery, your solar system generates power during the day while you might be at work, exporting much of it at low feed-in rates. With a battery installed, that excess daytime generation is stored and discharged in the evening when your household demand is highest and grid rates are at their peak under time-of-use tariffs.
Adding a battery to your solar system means you can cover a significant portion of your evening and overnight electricity needs with stored solar rather than grid power. For many Melbourne households, a solar and battery combination can reduce grid imports by 80 percent or more across the year. Some households with efficient appliances and well-sized systems achieve near-complete energy independence on most days.
The federal Cheaper Home Batteries Program, which launched on 1 July 2025, has made battery storage considerably more accessible by providing a significant upfront discount on eligible battery installations. Amazon Energy is a certified battery installer and applies the CHBP discount directly to your quote, with no paperwork required from you.
Why Solar Becomes More Valuable Every Year You Wait
Electricity prices in Australia have been trending upward for well over a decade. Network infrastructure costs, the retirement of ageing coal power stations, and ongoing wholesale market volatility all contribute to retail price pressure. In early 2026, many Victorian households saw further price increases from their retailers.
Every quarter you remain on grid-only electricity and delay your solar investment is another quarter of full retail rates going straight to your provider instead of building equity in a solar asset. The STC rebate also declines each year toward 2030, so the subsidy available today is larger than what will be available in 2028 or 2029.
Environmental impact
Victoria's electricity grid still relies on fossil fuels for a significant share of its generation. Every kilowatt-hour of solar you generate and self-consume directly displaces a kilowatt-hour of fossil-fuel generation. For a 6.6 kW system in Melbourne, this typically means a reduction of around four to five tonnes of CO2 equivalent per year, equivalent to taking a car off the road.
Why Choose Amazon Energy for Solar vs Grid Comparisons
Custom sizing
Custom system sizing for your actual usage, not a one-size-fits-all package.
NETCC Approved Seller
ACCC-backed, trusted since 2015.
No Paperwork
We handle all rebate paperwork: STC, CHBP, VEU, VEECs applied automatically
A-grade electricians
CEC-accredited A-grade electricians on every residential and commercial installation
Tier 1 components
Premium panels, inverters, and battery systems.
Coverage
Serving VIC, NSW, QLD, and WA with local knowledge of Melbourne's grid and tariff structures
Common concerns about switching from grid to solar
01.
What happens at night or on cloudy days when my panels are not generating?
Your home stays connected to the grid as a backup. With a battery, you draw on stored solar first and only fall back to the grid when storage is depleted. You will never be left without power.
02.
I have heard feed-in tariffs are too low to make solar worth it.
Feed-in tariffs alone are not the primary savings driver. Self-consumption is. Amazon Energy sizes your system and advises on usage habits to maximise the 30 to 40c per kWh saving from self-consumed solar rather than relying on export credits.
03.
Will solar really work through Melbourne's variable weather and winters?
Yes. Melbourne averages around 2,200 peak sun hours per year. Winter generation is lower than summer, but your system generates useful power year-round. A correctly sized system accounts for seasonal variation in its annual output estimate.
04.
What if electricity prices change or feed-in tariff rules shift?
Solar insulates you from grid price changes because your self-consumed energy has a fixed cost of zero after payback. Rising grid rates actually increase the value of your solar investment over time, not decrease it.
Frequently asked questions
01.
How much do Melbourne electricity bills typically cost without solar?
Melbourne households typically spend a significant amount per year on electricity, depending on house size, appliance use, and whether gas is used for heating and hot water. Households that have shifted to all-electric appliances and EV charging without solar often see bills at the higher end. Solar with self-consumption can reduce these bills by 60 to 80 percent in many cases.
02.
What is the current feed-in tariff in Victoria in 2026?
Standard feed-in tariffs in Victoria in 2026 sit well below grid retail rates, depending on your retailer and plan. Some retailers offer variable or time-varying rates that can pay more for solar exported during the morning and evening peaks. The Essential Services Commission sets a minimum FiT that all licensed Victorian retailers must offer. Your Amazon Energy consultant can recommend which retailer plan complements your system design.
03.
Does solar work with time-of-use electricity tariffs?
Yes, and a battery makes time-of-use tariffs even more advantageous. Under time-of-use plans, grid electricity is cheapest at off-peak times (typically overnight) and most expensive during peak periods (often 3pm to 9pm). Solar generates power during the day, and a battery stores that energy to discharge during the expensive evening peak. This combination can deliver the maximum possible saving on a time-of-use plan.
04.
How does solar vs grid electricity compare for businesses?
Commercial electricity rates in Australia are often higher than residential rates, and businesses typically operate during daylight hours when solar generation is at its peak. This alignment of supply and demand means commercial solar often achieves payback periods of two to four years. Businesses can also claim the system as a depreciating asset under the tax code, further improving the return on investment. Amazon Energy's commercial team specialises in sizing systems for warehouses, factories, retail centres, and office buildings across Melbourne and beyond.
05.
Can I go completely off-grid with solar in Melbourne?
A completely off-grid setup in metropolitan Melbourne is technically possible but generally not the most cost-effective approach, as it requires significantly larger battery capacity to cover extended cloudy periods in winter. Most Melbourne households achieve the best financial outcome by staying grid-connected, using solar and battery storage to minimise grid imports, and keeping the grid as a reliable backup for low-generation days. Amazon Energy can model both scenarios and advise on the most practical solution for your property.