Unlocking the Power of the Sun: How Does Solar Energy Work?
Over 4 million Australian homes now have rooftop solar. That number keeps growing, and for good reason.
With rising energy costs and growing climate concerns, more households are turning to the bright Aussie sunshine to power their homes.
How does solar energy work?
Knowing the answer to this question will give you confidence when choosing a solar setup for your home.
What Is Solar Energy?
Solar energy is the light and heat that comes from the sun.
Solar panels capture that energy and turn it into electricity. This electricity can then power your home’s lights, appliances, and devices.
How Does Solar Energy Work to Produce Electricity?
1. Solar Panels Capture Sunlight
Each solar panel consists of solar cells made from a material called silicon. Silicon is a semiconductor that generates electricity when exposed to sunlight.
When sunlight (made up of tiny energy particles called photons) hits the solar cell’s surface, it excites the electrons in the silicon. This energy causes the electrons to move, creating an electrical flow.
The movement of these electrons generates direct current (DC) electricity.
2. The Inverter Converts DC to AC Power
But! Your home doesn’t use DC electricity; it uses alternating current (AC) power! So what now?
A device called a solar inverter converts the DC electricity into AC electricity. How? By rapidly switching the direction of the DC electricity, turning it from a straight, one-way flow into a wave-like, back-and-forth current.
This wave pattern matches the standard used in the Australian power grid (230 volts, 50 Hz), so the electricity can flow into your switchboard and safely power your home.
3. Your Home Uses Solar Power First
Your solar system prioritises self-generated electricity. That means your home will always use solar power before drawing any energy from the grid. This self-consumption helps reduce how much electricity you need to buy from your energy provider.
So, during the day when the sun is strong, your home will mostly run on solar power, lowering your power bills and your reliance on fossil-fuel-based grid energy.
4. Extra Power Goes to the Grid or a Battery
If your solar panels generate more electricity than your home needs at the time, the extra energy doesn’t go to waste.
Your system can send the excess electricity into the main electricity grid. When this happens, your energy retailer may pay you a feed-in tariff, a small credit on your power bill for each kilowatt-hour (kWh) you send back. The rate varies depending on your provider and the state in which you live.
Alternatively, excess energy can be stored in a solar battery for later use. This stored power becomes useful at night, during blackouts, or on overcast days when your panels aren’t generating enough electricity.
5. The Grid Backs You Up When Needed
Your solar system works during the day when sunlight is available, but electricity use continues well into the evening. When the sun isn’t shining and your panels aren’t producing power, your home still needs a reliable energy source.
If you don’t have a solar battery with stored excess solar energy, your home will automatically draw electricity from the grid whenever your solar production can’t meet your energy needs. No interruption or manual switching is involved; it all happens instantly and seamlessly in the background.
Key Components of a Solar Power System
Solar Panels
Solar panels do the crucial job of capturing sunlight. Each panel is made up of multiple solar cells, usually made from silicon, a material that reacts when exposed to sunlight. This reaction generates direct current (DC) electricity, which begins the process of powering your home.
How many solar panels do you need?
That depends on how much electricity you use and how much roof space you have. Most homes install systems between 5 kW and 10 kW, which generally means 14 to 28 panels, depending on the panel’s wattage (typically 350 W to 400 W each).
Where should you install solar panels?
- Pitched or Flat Roofs: Roof-mounted panels are the most common option. North-facing panels are ideal in Australia because they capture the most sunlight throughout the day. East- or west-facing panels can also work well, if you use more electricity in the morning or afternoon, rather than during the middle of the day.
- Ground Mounts: If roof space is limited or shaded, panels can be installed on ground-mounted frames. These systems require open land and are more common on farms or commercial properties.
- Carports or Pergolas: Panels can also be installed on secondary structures like carports, sheds, or pergolas, provided they get enough sun.
Inverters
Solar panels generate direct current (DC) electricity, but your home runs on alternating current (AC) electricity. An inverter converts DC into AC, making the energy from your solar panels usable for household appliances and devices.
Where is the inverter installed?
Near your switchboard, meter box, or sometimes inside your garage or on an external wall. The installer will choose a shaded, well-ventilated area to prevent overheating and to make the unit easy to access for maintenance or monitoring.
What are the main types of inverters?
- String Inverters: The most common option for residential systems. All panels connect in a single “string,” and the inverter manages the output from the whole group.
Pros: Cost-effective, reliable, easy to service.
Cons: If one panel is shaded or underperforming, it can affect the output of the entire string.
- Microinverters: Installed directly under each solar panel. Each panel has its own mini inverter.
Pros: Allows individual panel performance monitoring and better output if some panels are shaded or facing different directions.
Cons: Higher upfront cost, more components to install and service.
- Hybrid Inverters: A string inverter that also manages solar battery storage. Designed for homes that already have a battery or plan to install one later.
Pros: Battery-ready, more efficient energy management.
Cons: Slightly more expensive than standard string inverters.
How do you choose the right inverter for your home?
Choose
- A string inverter if you have consistent roof sunlight and no major shading issues.
- Microinverters if your roof faces multiple directions or has regular shading from trees or nearby structures.
- A hybrid inverter if you want to install a solar battery now or in the future.
Solar Batteries
Instead of returning excess electricity to the grid, a solar battery stores it for later use: at night, during blackouts, or when your panels aren’t producing enough.
Where are solar batteries installed?
Near your switchboard or inverter, either indoors (like in a garage) or outdoors in a weatherproof enclosure. The location needs to be cool, dry, and well-ventilated.
If your system includes a hybrid inverter, installation is typically simpler because the one device handles both the solar panel output and battery charging.
However, if your system uses a standard string inverter, you’ll usually need a separate battery inverter. This second inverter manages the flow of electricity to and from the battery, charging it when there’s extra solar power and discharging it when your home needs energy.
What are the most common battery sizes?
Battery capacity is measured in kilowatt-hours (kWh), telling you how much electricity the battery can store and later deliver.
Common sizes for Australian homes include
- 5–6 kWh: For small households with low to moderate energy use.
- 10–13 kWh: For average family homes with regular energy use, including evening consumption.
- 15+ kWh: For large homes, households with high energy use, or properties with electric vehicles.
Some systems allow for modular expansion, meaning you can start small and add more storage capacity over time.
How do you choose the right battery size?
That depends on
- Your daily energy usage
- How much excess solar power your system generates
- Whether you want backup power
- Your future plans, like adding an EV or increasing solar panel capacity
Monitoring Tools
Monitoring tools let you track how your solar power system is performing in real time.
They show how much
- Electricity your panels generate
- Your home uses
- Excess energy is exported to the grid
- Charge is in your battery
How do solar monitoring tools work?
Most modern inverters come with built-in monitoring capabilities. These connect to your home’s Wi-Fi and feed data to a mobile app or web portal. From there, you can log in and check your system’s performance anytime, anywhere.
If you’re using an iStore inverter, you can connect it to our WLAN dongle. This small device plugs into your inverter and links it to your home Wi-Fi, enabling full access to iStore’s online monitoring platform.
With the WLAN dongle, you can
- View live and historical solar performance data
- Understand your energy habits and make smarter usage choices
- Track your daily savings
- Maximise savings by shifting high-energy tasks (like laundry or charging an EV) to when solar output is highest
- Monitor how much power you’re exporting or importing
- Receive alerts if something goes wrong with the system
- Track your return on investment over time
Benefits of Using Solar Energy
Cost Savings
Generating solar energy for your home instead of relying solely on electricity from the grid significantly reduces your power bills.
Feeding excess energy back into the grid for a credit on your power bill helps offset the times when you do need to draw electricity from the grid.
Environmental Impact
Solar energy is a clean, renewable source that helps reduce greenhouse gas emissions. By generating electricity from sunlight, solar panels decrease reliance on fossil fuels, contributing to a reduction in air pollution and mitigating climate change.
Between January and March 2025, renewable energy accounted for 43% of electricity used in Australia’s main power grid, highlighting the growing impact of clean energy sources.
Energy Independence
By producing your own electricity, you become less dependent on the main power grid and less vulnerable to energy price fluctuations. This self-sufficiency ensures a more stable and predictable energy supply for your household.
Longevity
Modern solar panels are durable and built to last, typically with a lifespan of 25 years. This long-term investment continues to provide energy savings and environmental benefits for decades.
Government Incentives
The Australian government offers several incentives to encourage the adoption of solar energy.
- Small-Scale Renewable Energy Scheme (SRES): Tradable certificates (STCs) can be sold to offset the upfront cost of installing solar systems.
- Cheaper Home Batteries Program: Launching on July 1, 2025, this program offers up to a 30% reduction in the cost of home battery systems, aiming to support over one million new battery installations across Australia by 2030.
- State-Based Rebates: Various states provide additional incentives. For example, New South Wales offers rebates up to $2,400 for battery installations.
Why Choose iStore for Solar Energy Solutions?
iStore is a proudly Australian-owned, family-run company with over 25 years of experience in the solar and water heating industries. We understand our customers and what they need: affordable, high-quality products backed by strong warranties and local customer support.
Here are the products you can find within our range.
Solar Batteries
iStore solar batteries are scalable, safe, and durable.
Each battery is a stackable unit with a capacity of 5 kWh. Connecting two modules creates a 10 kWh battery, and connecting three modules gives you a 15 kWh battery. You can even connect two sets of 15 kWh batteries to achieve a maximum capacity of 30 kWh. So, no matter how high your energy needs are, we have you covered!
Our batteries are made of lithium iron phosphate (LFP). LFP batteries are known for being safer and more stable than other lithium-ion batteries. They have four layers of built-in protection, including temperature sensors that monitor and adjust the battery’s load to prevent short circuits, overcharging, overheating, and other potential faults.
They can also withstand Australia’s diverse climate, operating effectively in temperatures ranging from -20°C to 55°C.
Hybrid Inverters
iStore hybrid inverters integrate seamlessly with solar panel systems and iStore batteries, creating a complete energy solution that’s efficient and easy to manage.
We offer single-phase and three-phase hybrid inverters to suit a range of energy needs.
Single-phase inverters are ideal for standard homes with typical household energy usage, while three-phase inverters are better suited to larger homes or commercial properties with higher energy loads or appliances that require more consistent power distribution.
Heat Pumps
You can maximise your solar energy use by pairing your solar system with an iStore heat pump. Instead of using electricity from the grid, the heat pump draws power from your solar panels to heat and store water.
Our heat pumps extract heat from the surrounding air to warm the water inside the tank. By using renewable energy from both the sun and the air, iStore heat pumps significantly reduce electricity use and carbon emissions compared to traditional electric or gas water heaters.
The Future of Solar Energy
The future of solar energy is bright!
Solar systems are becoming smarter and more flexible, with better battery storage, more efficient panels, and advanced monitoring tools to help you get the most out of every ray of sunlight.
Government incentives and rebates continue to lower upfront costs, making solar a realistic option for more households.
As energy prices rise and environmental concerns grow, solar energy is set to play an even bigger role in how we power our homes.
FAQs
How Does Solar Energy Work?
Solar panels capture sunlight, and an inverter converts it into electricity. This electricity can then power a home or be stored in a battery for later use.
What Are the Main Components of a Solar Energy System?
The main components of a solar system are solar panels to capture sunlight, an inverter to convert the sunlight into usable electricity, an optional battery to store excess power, and monitoring tools to track system performance.
Can Solar Energy Work at Night?
Solar panels don’t produce electricity at night, but if you have a solar battery, you can use the excess energy stored during the day to power your home after sunset.
If you don’t have a solar battery, your home will automatically draw electricity from the grid at night.
How Efficient Is Solar Energy Compared to Other Renewable Sources?
Solar energy is highly efficient, especially in sunny regions like Australia. While wind and hydro can offer higher output in some settings, solar is more accessible, scalable, and easier to install.
Harness the Power of Solar Energy with iStore
How does solar energy work?
A solar system turns sunlight into electricity to power your home cleanly, conveniently, and cost-effectively.
Ready to make the switch to solar?
Explore the iStore range of smart, reliable solar solutions today. Then, call 1300 515 640 or fill out this online form, and we’ll help you out with expert advice and a free quote.
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Sustainable Sun Energy for Eco-Friendly Living
Sunshine isn’t just good for beach days and drying your washing. It’s fast becoming the future of home energy.
Across the world, more and more people are switching to solar. Rising energy costs, climate concerns, and more innovative technology are driving a shift towards cleaner, greener power.
For Aussie homeowners, especially, it just makes sense. We’ve got the sun and roof space, so why keep paying for power the old-fashioned way?
How does sun energy work, what are its benefits, and why is it a smart choice for anyone looking to live more sustainably?
What Is Sun Energy?
Sun energy (or solar energy) is the power we get from sunlight. It all starts in the sun’s core, where tiny hydrogen atoms smash together under extreme pressure and heat. This process, called nuclear fusion, creates helium and releases an enormous amount of energy in the form of light and heat.
That energy travels to Earth as electromagnetic radiation. It includes visible light (what we see), ultraviolet rays (what gives us sunburn), and infrared heat (what warms us up).
Even though the sun is 150 million kilometres away, it delivers enough energy to power everything on Earth.
We can harness sun energy in a few ways.
- Solar Electricity: Solar panels turn sunlight into usable power for your home.
- Solar Hot Water: Systems that use sunlight to heat water.
- Solar Architecture: Home and building designs that make the most of natural light and heat to reduce the need for artificial lighting or heating.
Sun Energy and the Environment
The sun gives us more energy than we could ever use and is completely free. Unlike coal or gas, we won’t run out of sunlight, making solar one of the most reliable and renewable energy sources.
Using sun energy is also much cleaner than traditional power. It doesn’t produce greenhouse gases, so you’re not adding to global warming every time you turn on the lights or run the dishwasher.
By switching to solar, we can move away from fossil fuels, which often involve digging, drilling, and transporting fuel across long distances. That process uses natural resources, pollutes the environment, and strains ecosystems.
Solar panels don’t need water to generate power, so they avoid the water waste and contamination often linked with coal or gas-fired power stations. And because panels can go on rooftops or unused land, they don’t take up space or cause land damage like other energy sources.
Solar panels produce zero emissions while running. Less pollution in the air helps improve public health in communities across the country.
Benefits of Using Sun Energy
What are the advantages of sun energy?
- Reducing High Energy Bills: Using solar energy means you can generate your own power during the day, cutting down how much electricity you need to buy from the grid and saving you money on rising energy costs.
- Increasing Energy Security: By generating solar power, especially with battery storage, you’re less affected by energy price hikes, blackouts, and changes in the energy market.
- Promoting Sustainability: Sun energy is clean and doesn’t produce harmful emissions, so switching to solar lowers your household’s environmental impact and supports a healthier planet.
- Reducing Reliance on Fossil Fuels: The more homes that use solar, the less we need to burn coal and gas, lowering air and carbon pollution and helping Australia move toward a cleaner energy future.
Applications of Sun Energy
Homes
- Solar panels generate electricity to run appliances and charge devices.
- Solar hot water systems use sunlight to heat water efficiently and cost-effectively.
- Battery storage allows households to store excess solar power for use at night or during blackouts.
- Solar-powered smart systems manage energy use more efficiently, lowering costs and boosting self-sufficiency.
Businesses
- Solar installations on warehouses and offices improve green credentials and cut costs by generating cheaper power on-site.
- Solar-powered equipment, such as lighting, security systems, and charging stations, improves energy efficiency and reduces overheads.
Communities
- Solar farms provide large-scale renewable energy to power local areas or feed into the broader grid.
- Community solar projects let residents share the benefits of solar energy without installing panels on their homes.
- Off-grid solar solutions support remote areas with limited access to traditional energy sources.
- Solar-powered public infrastructure, like streetlights, park lighting, and EV charging stations, reduces council energy costs and environmental impact.
Sun Energy Facts
Did you know…
- Australia generates more solar energy per person than any other country.
- There are over 4 million rooftop solar systems installed across the country.
- The rise in solar energy use has helped drive electricity prices down across Australia.
- The average solar-powered household saves over $1,500 a year on electricity bills.
- In 2024, solar power made up 19.6% of Australia’s electricity production in the National Electricity Market and South West Interconnected System.
- Experts predict that by 2050, solar could provide around 50% of Australia’s electricity.
With millions of solar systems already installed and thousands in savings up for grabs, there’s never been a better time to join Australia’s solar-powered future!
iStore’s Sun Energy Solutions
Solar Batteries
A solar battery stores the excess electricity your solar panels produce during the day so that you can use it later, like at night or during a blackout.
We design our solar batteries to be super safe and scalable to suit every home’s energy needs.
iStore batteries are made of lithium iron phosphate (LFP). LFP batteries are known for being safer and more stable than other lithium-ion batteries. They have four layers of built-in protection, including temperature sensors that monitor and adjust the battery’s load to prevent short circuits, overcharging, overheating, and other potential faults.
Each iStore battery is a stackable unit with a capacity of 5 kWh. Connecting two modules creates a 10 kWh battery, and connecting three modules gives you a 15 kWh battery. You can even connect two sets of 15 kWh batteries to achieve a maximum capacity of 30 kWh.
A single 5 kWh battery is ideal for smaller homes of one or two people, while a 10–15 kWh battery is perfect for average-sized homes running major appliances.
Need more backup or have a household with 4–6 people? A 30 kWh setup will give you serious energy independence!
Hybrid Inverters
A hybrid inverter maximises energy efficiency by automatically choosing the best power source—solar, battery, or grid—based on your usage patterns and solar output. This device allows you to use solar power as it’s generated, store the excess in a battery, or export it to the grid. It’s called “hybrid” because it can handle both solar and battery power in one system.
iStore hybrid inverters come in single-phase and three-phase options to suit different household sizes and energy needs.
You can connect your iStore inverter to our WLAN dongle. This small device plugs into your inverter and connects it to your home Wi-Fi, giving you full access to the iStore online monitoring platform.
With the WLAN dongle, you can
- View real-time and past solar performance data
- Understand your energy habits and make better usage choices
- Track your daily energy savings
- Monitor how much energy you’re exporting to or drawing from the grid
- Receive instant alerts if something goes wrong with your system
Heat Pumps
You can further maximise your solar energy by pairing an iStore heat pump with your solar system. Instead of using electricity from the grid, the heat pump draws power from your solar panels to heat and store water.
Our heat pumps extract heat from the air to warm the water inside the tank. By using renewable energy from both the sun and the air, iStore heat pumps significantly reduce electricity use and carbon emissions compared to traditional electric or gas water heaters.
EV Chargers
An EV charger supplies electricity to charge the battery in an electric vehicle.
With an iStore EV charger, you can power your vehicle using the free energy produced by your solar panels. It’s a sustainable and convenient way to charge at home with no fuel costs, no emissions, and no waiting around at public stations.
Why Choose iStore?
We are committed to sustainability, designing products that make the most of renewable sun energy while reducing your carbon footprint.
Our focus on quality means you get reliable, long-lasting technology. Every iStore product is backed by a strong warranty and tested for Australian conditions.
We believe sustainable energy should be accessible to everyone, so we offer affordable energy solutions that deliver upfront and long-term savings.
Steps to Transition to Sun Energy for Your Home
- Evaluate Your Home’s Energy Needs. To choose the right size system for your home, look at your electricity bills to understand how much energy you use daily, weekly, and seasonally. Also, consider your household size, appliance usage, and future needs, like adding an EV or battery.
- Choose the Right Inverter. You need a hybrid inverter that matches your system size and supports future upgrades. If your home has high energy demands or three-phase power, make sure your inverter can handle it.
- Install the Solar System. Always use a professional, accredited installer. Proper installation ensures your system is safe, compliant with Australian standards, and protected by its warranty.
- Monitor and Optimise Energy Usage. Use monitoring apps to track your solar output, battery storage, and energy habits. You can see when your solar production is highest and shift high-energy tasks like laundry, heating, or EV charging to those times to get the most out of your system.
FAQs
How Does Sun Energy Benefit the Environment?
Sun energy is clean, renewable, and produces no harmful emissions. It reduces air, water, and land pollution, cuts down greenhouse gas emissions, and helps preserve natural resources.
Is Sun Energy Cost-Effective for Homes?
Sun energy can significantly reduce electricity bills in the face of rising power costs, offer long-term savings, and increase home value.
Can I Store Sun Energy for Nighttime Use?
Yes, your solar battery can store excess energy generated during the day for later use at night.
How Much Does It Cost to Install a Solar Energy System?
Costs vary depending on system size, setup, brand, and government rebates, but a complete home solar system can range from $3,000 to $12,000.
Power Your Home with Sun Energy Today
How does the sun create energy?
By releasing an endless supply of heat and light.
This free energy beams down on your roof every day—why let it go to waste? Let iStore help you make the switch to sustainable, solar-powered living today.
Explore our range of high-quality and affordablesolar inverters, batteries, heat pumps, and EV chargers to kickstart your renewable energy journey. Then, call 1300 515 640 or fill out this online form, and we’ll help you out with expert advice and a free quote.
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What Is a 3-Phase EV Charger? Benefits, Charging Speed, and Installation
Charging your electric vehicle (EV) shouldn’t feel like waiting for paint to dry. You’ve got places to go and people to see! If charging via your current setup seems to take forever, it’s time to level up.
As EVs surge in popularity across Australia, so does the need for faster, smarter charging at home and at work.
3-phase EV chargers deliver more power, cut down charge times, and keep up with your lifestyle or business demands.
If you want to know what a 3-phase EV charger is, how it boosts charging speed, and what’s involved in installing one, you’re in the right place!
How Does a 3-Phase EV Charger Work?
A 3-phase EV charger uses a 3-phase power supply, which sends electricity through three separate wires at the same time. Because more power flows to your EV, it charges much faster than standard single-phase setups.
Think of it like filling up a water tank with three hoses instead of one!
Most modern EVs are designed to handle 3-phase charging, so you don’t need to worry about whether your car can keep up. And if your home or commercial site already has 3-phase power installed, you’re in a great position to take advantage of the faster charging a 3-phase EV can offer.
Benefits of 3-Phase EV Chargers
Faster charging isn’t the only advantage of 3-phase EV chargers.
- Efficiency: Higher power delivery means less energy loss during charging and less time drawing power from the grid, making your charging setup more energy-efficient overall.
- Scalability: Great for growing households or expanding commercial fleets. A 3-phase setup can handle multiple EVs and future upgrades without major changes to your existing electrical infrastructure.
- Future-Proofing: EV batteries are getting bigger. Installing a 3-phase charger now means you’re ready for the next generation of electric vehicles if you decide to upgrade your EV in future.
- Versatility: Perfect for both residential and commercial use, especially when faster turnaround times are essential, such as for households with multiple EVs, rideshare drivers, delivery vans, or business fleets.
- Compatibility with Solar: If you’ve got solar panels and a 3-phase solar inverter, you can make use of your available solar energy for more efficient and sustainable charging, reducing reliance on the grid and cutting energy costs.
Charging Speeds: 3-Phase vs. Single-Phase
Just how much faster can a 3-phase EV charger charge than a single-phase charger?
Single-phase chargers typically offer power outputs between 3.6 kW and 7.4 kW. Charging a 60 kWh battery with a 7.4 kW charger takes approximately 8 hours.
3-phase chargers can deliver between 11 kW and 22 kW, reducing the charging time for the same 60 kWh battery to about 3 hours. That’s almost 2.5 times faster charging!
Benefits of Fast Charging
Faster charging can make a big difference to your daily life.
- Convenience: Spend less time waiting and more time driving. Ideal for busy families, shift workers, or anyone on the go who needs to charge between school runs, meetings, or deliveries.
- Less Range Anxiety: Planning a road trip? Faster charging means shorter stops along the way and more confidence when driving longer distances.
- Easier Charge Sharing: In households or businesses with more than one EV, faster charging helps avoid delays and makes it easier to share a charger.
- More Flexibility: You’re not tied to charging overnight. You can plug in during the day and still get a full charge in just a few hours.
- Keeps Your Business Moving: For businesses, fast charging means less downtime for vehicles and more time on the road, boosting productivity and profits.
It’s important to know that fast charging can increase power consumption, so consider your energy needs and budget before investing in a 3-phase EV charger.
Who Should Consider a 3-Phase EV Charger?
| Typical User Situation | Single-Phase EV Charger | 3-Phase EV Charger | Reason |
| Single EV household | ✓ | Lower cost and sufficient overnight charging | |
| Apartment or townhouse with limited power | ✓ | Fits standard residential power supply and is easier to install | |
| Home or business with multiple EVs | ✓ | Supports faster charging and simultaneous charging of multiple vehicles | |
| Rideshare or delivery driver working daily | ✓ | Faster charging between shifts or during short breaks | |
| EV owner with residential or commercial solar energy setup | ✓ | Maximises the solar energy available from a 3-phase inverter for more eco-friendly and cost-effective charging | |
| Public or shared EV charging stations | ✓ | Ensures quick charging turnaround and high availability for multiple users |
How to Install a 3-Phase EV Charger
Site Assessment
Before installing a 3-phase EV charger, the first step is to check whether your property has 3-phase power available. Many newer homes and commercial buildings do, but older properties may only have single-phase power.
3-phase chargers require a compatible electrical supply. If your property doesn’t have a 3-phase system, an upgrade may be possible, but it will involve added costs and coordination with your energy provider.
A licensed electrician will carry out the site assessment. They’ll inspect your switchboard, meter, and main power supply to confirm whether 3-phase is installed and meets the EV charging requirements. If not, they can advise on what upgrades are needed and provide a quote.
It’s also a good time to assess things like charger placement, cable runs, and whether solar integration is part of the plan.
Equipment
You’ll need
- A 3-Phase EV Charger: Compatible with 3-phase power and supporting your EV’s onboard charging capacity.
- Wiring and Circuit Protection: Heavy-duty cabling rated for higher current, along with proper circuit breakers and safety switches.
- Mounting Hardware: Secure and weather-resistant hardware for wall-mounting or a stand.
Professional Help
Installing a 3-phase EV charger is not a DIY job! It involves working with high-voltage power and must comply with Australian electrical standards. Hiring a licensed electrician is non-negotiable.
They will make sure your setup is safe, reliable, and suited to your power supply and charging needs. They’ll also take care of any required certifications or paperwork.
What does the installation process involve?
Your installer will
- Confirm that your property has 3-phase power and that your switchboard is compatible.
- Install the charger, wiring, and any necessary safety devices, like circuit breakers or RCDs (safety switches designed to prevent electric shock).
- Secure the charger to a wall or stand in the chosen location (usually near your parking area).
- Connect the charger to your power supply and run safety and performance tests.
- Integrate the charger with your solar energy and battery system, if you have one.
- Show you how to use the charger and explain scheduling or solar integration features.
- Sign off on any required documentation to confirm the installation meets Australian standards.
Costs
The cost to install a 3-phase EV charger varies based on charger type, existing electrical infrastructure, and installation complexity.
3-phase EV chargers range from $1,000 to $1,300, depending on brand, features, and power output. Chargers with app control, load balancing, or solar integration may cost more but offer added convenience and efficiency.
General installation costs are as follows:
- Basic Installation: $500–$1,000 for properties with existing 3-phase power and minimal modifications needed.
- Complex Installation: $1,000–$2,500 for setups requiring longer cable runs, switchboard upgrades, or other modifications.
- 3-Phase Power Upgrade: $1,000–$3,000 to upgrade a property to 3-phase power, depending on location and existing infrastructure.
So, if your property has existing 3-phase power, the total cost can range from $1,500 to $2,300.
If the installation is complex or your property needs a 3-phase power upgrade, the total cost can be between $2,000 and $3,300.
Keep in mind that some states and territories offer rebates or incentives for EV charger installations. Check local programs to see if you’re eligible.
FAQ
Do I Need 3-Phase Power for an EV Charger?
You need a 3-phase power supply to install a 3-phase EV charger for faster charging.
A single-phase power supply is sufficient for standard home charging using a single-phase EV charger.
How Fast Is a 3-Phase EV Charger?
An 11–22 kW 3-phase EV charger can charge a 60 kWh battery in about 3 hours. That’s up to 2.5 times faster than a single-phase charger.
Can I Install a 3-Phase EV Charger at Home?
If your home has a 3-phase power supply, a licensed electrician can install a 3-phase EV charger. If not, you’ll need to upgrade your electrical system.
How Much Does It Cost to Install a 3-Phase EV Charger?
If your home already has 3-phase power, installation typically costs $1,500 to $2,300, including the charger.
If a power upgrade is needed, the total cost can rise to $2,000 to $3,300, depending on the setup and location.
Upgrade to a 3-Phase EV Charger With iStore
Power up in less time and keep moving with a 3-phase EV charger. You’ll get faster, more convenient top-ups and room to grow—perfect for busy households and businesses.
At iStore, we don’t just supply EV chargers; we deliver trusted, high-quality EV charging solutions backed by expert installation and support.
Explore the best 3-phase EV charger in Australia from iStore. Then, get in touch for advice or a quote by calling 1300 515 640 or filling out this online form.
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How a Solar EV Charger Works – Benefits, Costs, and Installation Guide
You’ve already cut your carbon footprint by switching to an electric vehicle, but why stop there? Power your EV with sunshine to take clean driving to the next level!
If you have solar panels (or plan to), a solar EV charger lets you skip the grid and charge straight from your roof. It’s clean, convenient, and seriously satisfying!
In this guide, you’ll find out how solar-powered EV chargers work, why they’re a smart move, how much they cost, and what’s involved in installing one.
How Does a Solar EV Charger Work?
A solar EV charger uses power generated by rooftop solar panels to charge your electric vehicle.
When the sun hits your panels, a solar inverter converts the sunlight into usable electricity. This electricity flows through your switchboard to the EV charger, delivering power to your vehicle’s battery to charge it.
If your solar system includes a solar battery, any energy generated during the day that your home doesn’t use can be stored to charge your EV later when the sun isn’t shining, like at night or during cloudy weather. Using stored solar power helps you get the most out of your system and reduce reliance on grid electricity, keeping charging costs down.
Smart EV chargers take solar charging a step further. They track when your solar system produces the most energy and automatically adjust charging times for maximum efficiency. Some models connect to an app, so you can monitor charging, set schedules, and optimise energy use from your phone.
Benefits of Solar EV Chargers
- Cost Savings: Use free solar energy to charge your EV and reduce reliance on expensive grid electricity, especially during peak hours when demand and rates are highest.
- Sustainability: Lower your carbon footprint by powering your vehicle with renewable energy from the sun instead of electricity generated from fossil fuels like coal or gas.
- Convenience: Charge at home during the day or night without queuing at public charging stations.
- Government Incentives: Federal and state-based incentives for installing solar batteries aim to make solar EV charging more accessible and affordable for Australians.
- Federal Cheaper Home Batteries Program: Starting July 1, 2025, this program offers up to a 30% reduction in the cost of home batteries, potentially saving households up to $4,000.
- State-Based Rebates: Various states provide additional incentives. For example, New South Wales offers up to $2,400 off the installation cost of a solar battery for homes and businesses with existing solar.
Technical Requirements
Before installing a solar EV charger, you must make sure it’s technically compatible with your EV, solar system, and home electrical infrastructure.
Consider
- Your EV and Solar System Specs: Review your EV’s charging capabilities and your solar system’s output. Confirm that your panels generate enough electricity to support regular charging based on your driving habits.
- Wattage and Voltage Compatibility: Your EV charger should match the voltage of your home’s electrical system and the capacity of your solar setup. Most home EV chargers in Australia operate on single-phase (up to 7.2 kW) or three-phase power (up to 22 kW).
- Solar Panel Efficiency: Not all solar panels perform the same. High-efficiency panels convert more sunlight into electricity, producing plenty of power even if you have limited roof space for panels.
- Battery Storage: Adding a solar battery lets you store excess solar energy for later use, which is ideal for overnight EV charging or when solar generation is low.
- Your Charger’s Charging Modes: EV chargers have different charging modes (Level 1, 2, and 3). Level 2 is the most common for home solar setups and is suitable for daily use. It provides faster, safer, and more efficient charging than a standard household power point (Level 1).
Choosing the Right Solar EV Charger for Your Home
Once you’ve covered the technical basics, choose a solar-powered EV charger that fits your lifestyle, budget, and future plans.
Look for
- Smart, High-Quality Features: Smart chargers with app connectivity let you schedule charging, monitor energy use, and prioritise solar power over grid electricity. iStore EV chargers feature user-friendly monitoring, built-in safety protections, and high energy efficiency.
- Solar Compatibility Settings: Some chargers are built specifically for solar use, with features like solar-only charging or dynamic load balancing. These features help maximise your available solar energy without drawing from the grid.
- Installation Suitability: Consider cable length, mounting options, and whether a pedestal or wall mount suits your space better.
- Scalability: Planning to upgrade your solar system, battery, or even get another EV down the track? Choose a charger that supports load sharing or future upgrades so you won’t need to replace it later.
- Brand Reliability and Support: A reputable brand should offer solid customer support, warranty coverage, and local technical service for peace of mind.
Costs and Installation of Solar EV Chargers
Charger type, brand, and installation complexity influence the overall cost of installing an EV solar charger.
The price for a Level 2 charger can range from $1,000 to $2,500. Basic installation can cost between $500 and $1,000, while complex installation requiring a switchboard upgrade or longer cable run can cost $1,000 to $3,000.
What if you’re starting from scratch and don’t have a solar system yet?
For a typical 5-6 kW residential solar system, solar panels can range from $5,000 to $9,000. A bigger 10kW system can cost between $7,500 and $10,500.
An optional 5 kWh solar battery can cost $9,800, and a 15 kWh battery can be up to $18,500.
Now that you have an idea about prices, let’s look at what the installation process involves.
- Site Assessment: A licensed electrician will evaluate your home’s electrical system, solar setup, and EV charging needs.
- Installation: They’ll mount the solar EV charger, connect it to your home’s electrical system, and link it with your solar inverter and battery if applicable. They may also install safety switches or upgrade components like the switchboard to meet Australian safety standards.
- Testing and Commissioning: After setup, the installer will test the charger’s performance, check for any electrical faults, and confirm that the system charges your EV safely. They’ll also walk you through how to use it.
Solar Panel Considerations
Your solar panel setup needs to be up to the task of charging your EV.
Keep in mind
- System Size: A solar system of 6.6 kW or more is recommended to generate enough power for household use and EV charging.
- Inverter Capacity: Your solar inverter must handle the combined load of your household and EV charging needs.
- Roof Space: More panels mean more energy, but you’ll need the roof space to match. High-efficiency panels can help if space is limited.
- Panel Orientation: North-facing panels will maximise solar generation throughout the day.
- Daytime Charging Habits: Solar energy is most available during daylight hours. Charging your EV during the day will let you use more solar power, especially if you don’t have a battery.
- Future Expansion: If you plan to add another EV or a home battery later, consider oversizing your solar system to avoid costly upgrades later.
Battery Life and Performance
When managed correctly, solar charging is generally gentle on EV batteries.
Unlike fast public chargers that deliver high-power bursts, home solar chargers provide a slower, steadier charge. This charging speed reduces heat and stress on the battery, preserving its lifespan.
Charging during the day directly from solar generation, or overnight using stored battery energy, allows for a more controlled charge-discharge cycle. Avoiding frequent full charges and letting the battery drain fully also contributes to longer battery life.
Many EVs and smart chargers have apps that track charging habits, battery temperature, and state of charge. Using these tools helps you monitor performance, adjust your charging times, and maintain your battery’s long-term efficiency.
FAQs
Can I Charge My EV Directly With Solar Panels?
Yes, but you’ll need a compatible inverter and EV charger to convert and manage the solar energy for vehicle charging.
How Much Does It Cost To Install a Solar EV Charger?
A Level 2 solar-powered EV charger can range from $1,000 to $2,500.
Basic installation can cost between $500 and $1,000, while complex installation requiring a switchboard upgrade can cost $1,000 to $3,000.
Do I Need a Battery for My Solar EV Charger?
A battery isn’t required for an EV solar charger, but it helps. Without one, you can only charge during daylight hours. A battery lets you store excess solar energy for nighttime or cloudy-day charging.
How Long Does It Take To Charge an EV With Solar Energy?
Charging time depends on solar system size, charger type, and EV battery capacity. With a typical 7 kW home charger and good solar conditions, a full charge can take 6–10 hours.
Drive Into the Future With an iStore Solar EV Charger
Why pay for power when the sun gives it away for free?
An EV solar charger charges your EV using free, renewable energy from your rooftop. It’s sustainable and eco-friendly, and will save you cash!
Explore iStore’s solar EV chargers today to drive smarter. Then, get in touch for expert advice or a quote by calling 1300 515 640 or filling out this online form.
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