Across Australia, more and more businesses are switching to solar to cut their costs, reduce their carbon footprints, and future-proof their operations. 

The financial support available through solar rebates is helping drive this surge towards solar energy.

How can you take advantage of a solar rebate for business to make solar more affordable? 

We’re here to answer that question. We’ll also show you how our tailored solar solutions can help you unlock long-term savings while doing your part to contribute to a cleaner Australia.

What Is the Solar Rebate for Australian Businesses?

The federal solar rebate for businesses is available through the Small-Scale Renewable Energy Scheme (SRES). The Australian Government introduced this initiative to encourage investment in clean energy by lowering the upfront cost of installing solar systems.

Instead of receiving a direct cash rebate, your business earns Small-Scale Technology Certificates (STCs) when you install eligible solar panels and inverters. Each STC represents a set amount of renewable energy your system is expected to generate over its lifetime.

These certificates have a market value and can be sold through your solar installer, who will apply the discount to the cost of your installation.

State-Level Solar Rebates For Business

Some state-based solar rebates for businesses are also available.

The solar rebate for businesses in NSW is currently called the Solar Battery VPP Incentive. This incentive offers up to $1,500 to small businesses that install an eligible solar battery and connect it to a Virtual Power Plant. 

In South Australia, the Powering Business Grant offers eligible businesses funding of $2,500–$75,000 to purchase solar batteries and solar panels paired with a battery storage system.

Benefits of Solar Rebates for Businesses

• Upfront Cost Savings: Solar rebates reduce the initial investment needed for a system, making it easier for your business to switch to renewable energy.
• Long-Term Cost Savings: With a lower installation price and reduced reliance on the grid, your business can benefit from ongoing savings on electricity bills.
• Environmental Impact: Installing solar panels helps reduce greenhouse gas emissions and supports your business’s commitment to sustainability, which can also enhance your brand reputation.
• Energy Independence: Generating your own clean power reduces exposure to rising energy prices and supply disruptions, giving your business more control over energy use.
• Tax Incentives: Your business may be eligible for tax deductions or depreciation benefits on solar systems, improving the overall return on investment.

Eligibility Requirements for Solar Rebates

To access the Small-Scale Renewable Energy Scheme (SRES), your business needs to install an eligible solar PV system under 100 kW in size with an annual electricity output of less than 250 MWh. The system must use approved products and be installed by a Clean Energy Council–accredited installer. 

The number of Small-Scale Technology Certificates (STCs) your business receives depends on

• Installation date
• Geographical location
• Amount of electricity generated
• Solar battery capacity
• How you choose to create your certificates: each year, every five years, or all at once for the full deeming period upfront

For state-based solar rebates, eligibility requirements differ depending on the program. In most cases, your business must operate from a commercial premises in that state or territory, use accredited products and installers, and meet certain conditions such as business size, energy use, or co-funding contributions.

To check whether your business qualifies for federal or state rebates, head to your state or territory government’s official energy website. You can also speak with a Clean Energy Council–accredited solar installer, who can explain what incentives apply to your business and manage the rebate process for you. 

How to Maximise Solar Rebate Benefits for Your Business

Choose the Right System Size

iStore’s diverse range of inverters caters to all businesses, no matter their size or energy needs.

• 10kW Hybrid Inverter Single-Phase: This inverter balances performance with affordability. It’s suited to smaller businesses such as cafés, retail shops, or small offices.
• 5kW or 6kW Hybrid Inverter 3-Phase: Either is a smart choice for medium-sized businesses with higher energy demands, like workshops or commercial kitchens, without requiring excessive investment.
• 10kW, 15kW, or 25kW Inverters 3-Phase: Reliable options for larger operations with greater power needs, including warehouses, manufacturing facilities, or bigger office spaces.
• 29kW or 40kW Inverter 3-Phase: These models deliver consistent performance across multiple facilities or businesses with heavy, round-the-clock energy usage.

Work with Certified Installers

To qualify for solar rebates, your system must be installed by a Clean Energy Council (CEC)–accredited installer using approved products. Professional installation guarantees your business meets all rebate requirements and the system is fitted safely.

Working with certified installers also saves you time and stress, as they usually handle the paperwork and certificate creation on your behalf.

Combine with Solar Batteries

Pairing solar panels with solar batteries enables your business to store excess solar power for peak demand periods, reduce grid reliance, and further boost long-term savings, while unlocking additional value from battery rebates.

iStore’s solar batteries come in stackable 5 kWh modules, letting you connect up to six modules and scale from 5 kWh to 30 kWh of storage. You can start with the storage you need now and expand over time as your business’s energy use grows.

Monitor Energy Usage

Keeping track of how your system performs is key to maximising savings and rebate value. 

iStore’s WLAN dongle and smart logger give real-time insights into your business’s energy generation and consumption. By monitoring usage, you can identify patterns, optimise performance, and make sure your system is delivering the returns you expect. 

FAQs

How Much Can a Business Save With Solar Rebates in Australia?

Installing solar through the Small‑Scale Renewable Energy Scheme can slash the system’s price by 25%–30%. 

Are Solar Rebates Available for Small Businesses?

The current Small‑Scale Renewable Energy Scheme is the best solar rebate for small businesses. It offers discounts through Small‑Scale Technology Certificates, significantly lowering the upfront costs of installing solar systems for businesses. 

Starting 1 July  2025, the Cheaper Home Batteries Program also expands to small businesses, providing around a 30% discount on eligible solar battery storage systems. 

What Is the Small-Scale Renewable Energy Scheme (SRES)?

The Small-Scale Renewable Energy Scheme is a federal program that reduces the upfront cost of installing solar systems with a capacity of under 100 kW. When a business installs an eligible system, it earns Small-Scale Technology Certificates, which have a market value and are usually applied as an upfront discount by the installer.

How Do I Apply for a Solar Rebate for My Business?

When your business installs solar panels or batteries through a Clean Energy Council–accredited installer, the installer applies for the federal rebate on your behalf. This includes claiming Small‑Scale Technology Certificates, which appear as a discount on your quote at the point of sale.

Take Advantage of Solar Rebates for Business with iStore

With the right rebates and the right system, your business won’t just save, it will thrive. Let iStore power your path to smarter, cleaner energy.

Explore iStore’s commercial solar inverters and solar batteries today and take the first step towards energy savings and sustainability. 

After browsing our range, call 1300 515 640 or complete this online form. We’ll answer your questions, give you a quote, and help organise installation. 

Ever wondered why your solar panels pump out all that energy during the day, but you’re still paying the power company at night? The missing piece is a solar battery. 

Solar panels only generate power while the sun is shining. Without a solar battery, any unused energy gets sent back to the grid instead of being saved for when you need it, like cooking dinner or binge-watching Netflix after dark.

The big question is: “What size solar battery do I need?” Pick too small, and you’ll run out of juice. Go too big, and you’ll overspend. 

Let’s look at what you should consider when buying a solar battery so you know exactly what size battery will work for your home.

Why Is Choosing the Right Solar Battery Size Important?

If your solar battery is too small, it won’t hold enough energy to cover your evening use. You’ll be left relying on grid electricity that’s expensive and generated mainly from non-renewable fossil fuels.

On the other hand, a battery that’s too large means you’ve paid for storage you rarely, if ever, fill, which is an unnecessary hit to your budget. 

So how do you figure out “What size solar battery do I need for my house?” Consider the following factors.

Factors to Consider When Sizing Your Solar Battery

Daily Energy Usage

Start by calculating your home’s average daily electricity use. Knowing your usage means you can choose a solar battery that matches your energy needs.

Check your electricity bill. It usually lists your total energy use over a billing period. Divide that by the number of days to get your daily average. Alternatively, note the reading on your meter at the same time on two consecutive days, then subtract to find the kWh used in 24 hours.

For reference, here are some typical household energy usage figures:

• Small Households (1–2 people): 8–17 kWh/day
• Medium Households (3 people): 18–20 kWh/day
• Large Households (4–5+ people): 21–25 kWh/day or more

Solar Panel Capacity

Solar panels set the limit for how much energy you can produce and store each day. A larger 6–10 kW system can generate far more electricity than a smaller 3 kW system, giving you more excess energy to put into a battery. 

The efficiency of your panels also matters, since higher-efficiency models produce more power from the same amount of sunlight.

Panel placement affects how efficiently your system performs. If your roof is partly shaded or panels face away from the sun, your overall output will be lower, which means the battery may not charge to full capacity. In this case, installing a large battery won’t deliver value, because the panels can’t generate enough power to fill it.

Usage Goals

Your reasons for installing a solar battery will strongly influence the size you need.

• Backup Power: If your main goal is backup power during blackouts, you may only need a smaller battery that can power essentials like lights, Wi-Fi, and the fridge. A larger battery would be necessary if you want to keep high-demand appliances, such as air conditioning, running as well.
• Off-Grid Living: If your home is not connected to the grid, you’ll need enough storage to cover all your daily energy needs, plus extra capacity for cloudy days. 
• Reducing Energy Bills: If your focus is on saving money rather than complete energy independence, a mid-sized battery is often enough. It can store daytime solar energy for use in the evening, helping you avoid buying expensive grid power during peak hours.

Location and Climate

Where you live has a big impact on how much solar energy your panels can produce and how large a battery you need. 

Homes in sunny regions generate more solar power, so a smaller battery may be enough to store the excess energy. Cooler or cloudier regions get fewer peak sun hours, which means you may want a larger battery to store extra energy when it’s available. 

These are the average peak sun hours per day across major Australian cities:

City	Average Peak Sun Hours per Day (Approx.)
Brisbane	5.6 hours
Sydney	5.3 hours
Melbourne	4.7 hours
Tasmania	3.5 hours
Adelaide	5.3 hours
Perth	6.0 hours
Northern Territory	6.5 hours

Seasonal changes also play a role. Households in southern states often use more electricity in winter for heating, while northern states may have higher summer demand from air conditioning.

Future Energy Needs

When choosing a solar battery, consider how your energy needs may grow in the future. Factoring in future changes helps you avoid needing an upgrade a few years down the track.

If you plan to have more people living under your roof, expect higher energy demand from extra appliances, heating, cooling, and day-to-day living.

If you plan to get an electric vehicle, this can significantly increase your electricity use. Charging can require 6–12 kWh per night, depending on the car and driving habits.

Common Solar Battery Sizes and Their Uses

• 5 kWh: Suited to smaller households or those wanting minimal essential power backup during power outages.
• 10 kWh: Storing enough solar power to cover evening use and reduce reliance on grid electricity.
• 15 kWh+: Ideal for larger families, homes with high-demand appliances, or those considering partial or full off-grid living.

Benefits of Modular Solar Battery Systems

Many solar batteries are modular, which means you can start small and add more capacity as your energy needs grow. 

For example, iStore solar batteries come in stackable 5 kWh modules. You can connect up to six modules, giving you flexibility to scale from 5 kWh to 30 kWh of storage.

How to Calculate the Right Solar Battery Size for Your Home

Here’s a simple guide to figure out “What size solar battery do I need for my house?”

1. Calculate your daily energy use. Check your electricity bill or meter to see how many kilowatt-hours (kWh) your household uses on average each day.
2. Decide how much of that you want covered. Do you just want to reduce your evening bills, keep the lights and fridge on during blackouts, or aim for full coverage? Your goal will determine how much storage you need.
3. Factor in your solar panel output. The size and efficiency of your solar system, along with peak sun hours in your area, affect how much energy you can generate to charge your battery.
   

Simple calculation:

Take your average daily energy use and multiply it by the percentage you want the battery to cover.

For example:

• Daily energy use = 20 kWh
• Desired coverage = 75% (0.75)
• 20 × 0.75 = 15 kWh battery
  

Still unsure? You don’t have to crunch the numbers alone! iStore’s solar battery experts can calculate the right size for your home and recommend a system that fits your budget and future energy goals.

FAQs

How Do I Know What Size Solar Battery I Need?

The right solar battery size depends on your daily energy use, how much of that you want to cover, and the output of your solar panels. 

A quick way to estimate is to multiply your average daily usage (in kWh) by the percentage you want stored. 

Is a 10kWh Battery Enough for My Home?

A 10 kWh battery suits most medium-sized homes, as it can store enough energy to cover typical evening use and reduce reliance on grid power. For example, a 10 kWh battery can run essentials like lights, a fridge, Wi-Fi, and a TV, plus a few hours of air conditioning or other appliances. 

What Factors Affect Solar Battery Capacity?

Solar battery capacity is influenced by daily energy use, the size and efficiency of solar panels, peak sun hours, and usage goals, whether that’s backup power, bill savings, or going off-grid. Adding more people to the household or charging an EV can also affect battery size.

Can I Add More Battery Capacity to My Solar System Later? </h3>

Many modern solar batteries are modular, so you can start small and add more capacity later as your energy needs grow. Just make sure your solar system and inverter are compatible with expansion.

Find the Perfect Solar Battery Size with iStore

Still asking yourself, “What size solar battery do I need for my house?” 

iStore makes the answer simple. Our modular battery systems let you start with a compact 5 kWh unit and expand all the way to 30 kWh as your household grows or your energy needs change. Each module is lightweight, stackable, and designed to fit seamlessly into Aussie homes.

Talk to an iStore expert today to find the perfect battery size for your home. Browse our solar battery range, then get in touch by calling 1300 515 640 or filling out this online form.

When it comes to energy-efficient hot water solutions, not all heat pumps are created equal. iStore has built its reputation as a market leader in Australia by delivering products that outperform the competition in performance, recovery rate, customer service, and long-term reliability. With over 15 years of expertise in the energy sector, iStore continues to set the benchmark for quality and innovation.

Superior Performance & Efficiency

iStore heat pumps are designed with advanced technology to maximize efficiency while minimizing energy consumption. By harnessing renewable energy from the air, they provide hot water at a fraction of the running cost of traditional systems. Independent tests and real-world feedback consistently show that iStore heat pumps deliver industry-leading performance, ensuring reliable hot water even in challenging climates.

Fast Recovery Rate – Hot Water When You Need It

One of the standout features of the iStore heat pump is its impressive recovery rate. Unlike many standard heat pumps that struggle to meet household demand, iStore systems are engineered to quickly replenish hot water, making them perfect for busy families. Whether it’s back-to-back showers or heavy daily usage, iStore ensures there’s always enough hot water on hand.

Industry-Leading Warranty & Peace of Mind

Choosing a hot water system is a long-term investment, and iStore backs their products with one of the strongest warranties in the industry. This commitment to durability and customer confidence means homeowners can trust that their iStore system is built to last, with reliable performance for years to come.

Exceptional After-Sales Service

What truly sets iStore apart is not just the product, but the people behind it. With a dedicated support team and a national network of installers, iStore prides itself on delivering outstanding after-sales service. From installation to ongoing support, customers enjoy a seamless experience that ensures maximum value from their investment.

Setting the Benchmark in Hot Water Technology

While many heat pumps on the market focus on being the cheapest, iStore has deliberately focused on quality, reliability, and innovation. By combining advanced engineering with superior customer support, iStore continues to raise the standard for hot water solutions in Australia.

In short: Performance, recovery, service, and warranty—this is what makes iStore the clear market leader in heat pump technology.

You’ve bought an electric vehicle. Bet you’re feeling pretty good about skipping the petrol station! But if you’re now stuck waiting in line at a public charging station, it’s a bit of a letdown, right?

The answer? An EV charger installed at your home or business. 

Choosing the right EV charger can be overwhelming. Heaps of options. Confusing specs. And no clear answer on what suits your home, your business, or your daily driving routine.

This EV charger comparison guide cuts through the noise. We’ve compared top EV charger models to reveal the best EV charger with the speed, features, and value you need.

Why Choosing the Right EV Charger Matters

Choosing the right EV charger will make your life easier. You can charge faster, avoid long waits at public stations, and schedule charging during off-peak times when electricity rates are cheaper to save money. 

Smart chargers come with built-in features like energy tracking, remote access via an app, and automatic scheduling, so you’re in complete control wherever you are.

Certain chargers are designed to work with certain setups. For example, some are made for homes with standard single-phase power, while others support faster charging through three-phase connections. If you have solar panels, you’ll want a charger that can sync with your solar system and charge your EV using excess solar energy.

With a smart charger, you can take this a step further, automatically prioritising solar power, tracking how much energy you’re using, and adjusting charging times to lower costs and reduce your reliance on the grid.

And don’t forget compatibility. Not every charger suits every EV model, so it’s important to pick one that’s a good match for your car and your home or business power supply. A little research now means fewer headaches later and more reliable charging every time you plug in.

Types of EV Chargers – A Quick Overview

Level 1 Chargers

Level 1 chargers are the most basic charger type and usually come included with your EV. They plug into a standard 240-volt (V) household power point and deliver around 2.4 kW of power.

That translates to slow charging. You’re looking at around 14–24+ hours for a full charge, depending on your vehicle. It’s enough to top up overnight if you don’t drive far each day, but it’s not ideal for regular use or EVs with larger batteries.

These chargers are simple, portable, and cost nothing extra upfront. But if you want faster, smarter, or solar-compatible charging, you’ll likely outgrow a Level 1 charger quickly.

Level 2 Chargers

Level 2 chargers are the most popular choice for home and business use. They need to be hardwired or plugged into a dedicated circuit, usually using a 7 kW (single-phase) or 22 kW (three-phase) setup.

Charging is much faster than with a Level 1 charger. You can expect a full charge in 4–10 hours, depending on your EV and your power supply. They’re ideal for complete overnight charging or topping up during the day.

Many Level 2 chargers come with smart features like Wi-Fi connectivity, energy monitoring, scheduling, and solar integration. They’re compatible with most EV models and offer a more reliable, long-term solution for regular charging at home or work.

DC Fast Chargers

Most homes and businesses supply AC (alternating current), which needs to be converted to DC (direct current) because EV batteries only use DC power. With a Level 1 or 2 charger, the current is converted inside the car using its onboard inverter. With a DC fast charger, this conversion happens inside the charger.

This process speeds up charging, making DC fast chargers the fastest type of charger. 

They offer high power output, typically ranging from 25 kW to 350 kW. Lower-powered models (around 25–50 kW) can give you a decent top-up in under an hour. Higher-powered units (150–350 kW) can charge some EVs from 10% to 80% in just 20–60 minutes, depending on the car’s battery capacity and charging capability.

DC fast chargers are used at commercial sites, fleet depots, and public charging stations. They’re more expensive to buy and install, and generally require three-phase power, advanced electrical infrastructure, and council approval. Most homes won’t support them, but for businesses, they’re a game-changer for fast charging turnaround.

Single-Phase vs Three-Phase EV Chargers

What power supply does your home or business have: single-phase or three-phase? The answer will affect the EV charger you choose. The terms refer to how electricity flows into your home or business.

Most homes in Australia have single-phase power. It’s suitable for everyday appliances and supports EV chargers up to around 7.4 kW. Three-phase power is more common in commercial buildings or large properties and can support higher-capacity chargers, up to 22 kW or more.

The main difference between single-phase and three-phase charging is speed. With single-phase, a typical charger will add about 25–40 km of range per hour, depending on your EV. With three-phase, charging speeds can jump to around 60–100+ km of range per hour.

In terms of cost, single-phase chargers are generally cheaper to install and more than enough for most home users. Three-phase chargers and the required wiring cost more but are faster and better suited for heavier daily use, such as in businesses, workplaces, or apartment blocks.

Still unsure? A licensed electrician can confirm your home or business’ power supply and determine if any upgrades are needed for three-phase charging.

Commercial and Home EV Charger Comparison Table: Top 5 Models

Charger Model	Power Output	Approx. Charging Speed (Full Battery)	Approx. Range Added	Features	Pros	Cons
iStore	7.4 kW (single-phase) / 22 kW (three-phase)	6–10 hrs at 7.4 kW and 2–4 hrs at 22 kW	10–15 km/hr (7.4 kW) and 30–120 km/hr (22 kW)	App control, works with solar, balances power use, 3-year warranty	Scheduled charging, strong safety features (including internal overheating sensors), long cable included	None!
Zappi	7 kW / 22 kW	3–9 hrs	40–100km/hr	Designed and made in the UK with an Australian office and support, OCPP compatible (can take advantage of third-party software applications)	Great for solar homes and businesses, lots of charging modes, eco-friendly features	More expensive than other chargers on the market
Evnex	7.4 kW / 22 kW	3–10 hrs	50–120 km/hr	Local company with products manufactured in New Zealand, adjusts charging based on power use	Integrates with any solar system, easy to operate, one of the only models that comes with a built-in 4G SIM, making installation and connection straightforward	No option for an untethered single-phase residential charger (there is an untethered commercial single-phase charger), cannot connect to third-party apps
Ocular	Single phase / Three-phase	6–8 hrs	40–140 km/hr	Adjustable charging speeds, built-in Wi-Fi for remote monitoring, smartphone app control	Simple and affordable, charging control and tracking	No built-in display, not compatible with solar
Tesla Gen 3	Single phase / Three-phase	5–13 hrs	38–60 km/hr	Wi-Fi connection, app control, customisable faceplate colour	One of the cheapest chargers on the market, extra-long cable, durable against environmental conditions	No Open Charge Point Protocol (OCPP), which allows chargers to communicate with charging management software, regardless of brand, no load balancing capability, no LCD screen to display charging status

Key Features To Look For in an EV Charger

When choosing an EV charger, it’s not just about speed. 

Here are the key features to keep in mind.

• Durability: Look for a charger that can handle Australian conditions—heat, rain, and everything in between. For outdoor setups, weatherproof casing is essential.
• Compatibility: Make sure the charger works with your EV model and your power setup (single-phase, three-phase, or solar). Also, consider how you want to connect the charger to your car; some are tethered, with a cable attached, while others are untethered, so you’ll need to use the charging cable that came with your EV and plug it into the charger each time.
• Integration with Solar Systems: If you have solar panels, pick a charger that can sync with your system. The best ones let you prioritise solar power, helping you save money and reduce grid reliance.
• Smart Capabilities: Many chargers now come with apps that let you schedule charging during off-peak hours, monitor energy use, or receive software updates automatically. Some also support load management to avoid overloading your home or business’ power.
• High Capacity for Multiple Vehicles: If you’re running a fleet or offering public charging, look for chargers that can support multiple vehicles at once or work together using power-sharing features.
• Payment Integration: For customer use, choose a charger with built-in or add-on payment options like RFID cards, tap-and-go, or mobile apps. These make charging simple and trackable.
• Warranty and Support: A solid warranty (ideally 3 years or more) gives peace of mind. Also, check that the brand offers local support and installer access if something goes wrong.

FAQs

What Are the Best EV Chargers on the Market?

The best EV charger is one that is reliable, compatible with your vehicle, and suitable for your power setup: single-phase, three-phase, or solar. It should offer smart features like app control, scheduled charging, and energy monitoring, and be designed to handle Australian climate conditions. 

For businesses, top choices also include options for multiple vehicles, user access control, and payment systems. The right choice depends on your specific needs, budget, and location.

How Do Level 1 and Level 2 EV Chargers Compare?

Level 1 chargers plug into a regular power point and are slow, taking up to 24 hours for a full charge. Level 2 chargers use a dedicated circuit and are much faster, usually charging a car in 4 to 10 hours. 

What’s the Difference Between Single-Phase and Three-Phase EV Chargers?

Single-phase chargers are common in most homes and offer charging speeds up to 7.4 kW. Three-phase chargers are faster—up to 22 kW—and are often used in businesses or larger properties with three-phase power. 

The main difference between these chargers is how quickly they can charge an EV: around 4–10 hours with single-phase compared to 2–4 hours with three-phase, depending on the vehicle’s battery size. 

Do Faster EV Chargers Cost More?

Yes, faster EV chargers generally cost more. Higher charging speeds require more advanced hardware, and installation can be more complex, especially for three-phase or DC fast chargers. However, the extra cost can be worth it for quicker charging and better convenience.

Choose the Perfect EV Charger with iStore

We’re sure our EV charger comparisons have given you food for thought and a jumping off point. But no doubt, you still have questions about which EV charger will be best for your specific circumstances.

iStore is here to help! 

Our EV charger experts can answer your questions, point you in the right direction, and provide you with a quote.

We supply two EV charger models to suit various charging needs.

1. 7.4 kW 230 V AC 1-Phase EV Charger: Offers overnight charging using a standard single-phase power supply. Ideal for everyday EV use and suits most Australian household energy setups.
2. 22 kW 400 V AC 3-Phase EV Charger: Delivers much faster charging to larger EVs, multiple vehicles, or commercial vehicles. Designed for larger homes or businesses with a 3-phase power supply.

Browse the best single-phase EV charger in Australia AND the best 3-phase EV charger in Australia from iStore, then get in touch by calling 1300 515 640 or filling out this online form. 

EV sales are surging year after year, with more Aussies going electric than ever before. Are you one of them? Whether you drive an electric vehicle for the savings, the sustainability, or the tech appeal, one thing’s for sure: charging matters.

From powering up at home to installing charging stations at your business, knowing your charging options can save you time, money, and a whole lot of hassle.

What is an EV charger, and what do you need to know about it? We’ll cover the different types available, how they work, and how fast they charge so you can choose the best setup.

What Is an EV Charger?

An EV charger is a device that transfers electricity into an electric vehicle’s battery, allowing it to recharge and power the car’s motor. 

How Does an EV Charger Work? EV Charging Basics

1. The charger draws electricity from your home or business’ electricity source, be it the grid or solar panels.
2. Most homes and businesses supply AC (alternating current), which needs to be converted to DC (direct current) because EV batteries only use DC power. An inverter steps in to do the job, either inside the charger (for DC fast chargers) or inside the car using its onboard inverter.
3. The converted electricity is then sent through the charger and into your EV’s battery.

Types of EV Chargers

Level 1 Chargers

Level 1 chargers are the most basic type and come standard with most electric vehicles. They plug into a regular 240-volt (V) household power outlet, so there’s no special installation needed.

They’re the slowest charging option, but provide enough for overnight charging if you drive short distances.

Level 1 chargers can be a practical option for plug-in hybrid vehicles. Since hybrids have smaller batteries than full EVs, they don’t take as long to recharge, making a standard outlet more than capable of topping them up.

Level 2 Chargers

Level 2 chargers are faster and more powerful than Level 1 chargers. They require a dedicated 230–240V circuit, similar to what large appliances like ovens or air conditioners use, and usually need to be installed by a professional.

These chargers are compatible with most EVs and plug-in hybrids and are ideal for daily home use or for businesses looking to offer EV charging to staff or customers.

EV charging standards in Australia are shifting toward smart chargers as the new normal. Many Level 2 chargers can monitor energy usage, allow you to schedule charging during off-peak times when electricity is cheaper, and even integrate with solar systems to maximise efficiency. All this helps you lower costs, reduce grid reliance, and keep your EV ready when you need it.

Fast Chargers (DCFC)

DC fast chargers (DCFC) are the quickest way to charge an EV. Unlike Level 1 and Level 2 chargers, which supply AC power, DC fast chargers deliver electricity in DC form directly to the battery, skipping the vehicle’s onboard inverter.

They require a high-voltage, three-phase power supply and are installed in commercial or public locations like shopping centres, service stations, or highway rest stops. They service commercial vehicles making long trips or fleet vehicles needing quick turnarounds.

Understanding EV Charging Speeds

EV charging speed is measured in kilowatts (kW), which refers to how quickly electricity is transferred to your vehicle’s battery.

Charging speed depends on two main factors: an EV’s maximum charging capacity and the size of its battery.

Every EV has a built-in limit on how much power it can accept at once. So even if you plug into a high-powered charger, your car will only draw what it’s designed to handle.

For example, if your EV has a 7 kW onboard charger, it won’t charge any faster than 7 kW, even if you’re using a 22 kW charger. On the flip side, if your EV can accept 11 kW but you’re using a 7 kW charger, it will charge at the lower 7 kW speed.

EV batteries are measured in kilowatt-hours (kWh), which indicates how much energy they can store. A larger battery takes longer to fully charge than a smaller one.

Charging time is a mix of how fast power flows (kW) and how much energy your battery can hold (kWh). Matching your charger to your vehicle’s capabilities helps you get the best results.

Comparing EV Charging Speeds

Charger Type	Power Output	Typical Range Added	Typical Charging Time	Power Source	Best For
Level 1	Approx. 2.4 kW	10–20 km per hour	14–24+ hours (full charge)	Standard 240V outlet	Plug-in hybrids, light daily EV use. Slowest option; ideal for overnight top-ups
Level 2	7–22 kW	30–130 km per hour	4–10 hours (full charge)	Dedicated 240V circuit	Daily home charging, businesses with EV bays. Faster, more efficient charging, often with smart features
DC Fast Charger (DCFC)	50–350+ kW	150–300+ km in 15–30 mins	20–60 mins (up to 80% charge)	High-voltage 3-phase power	Highway stops, fleets, fast turnaround needs. Not suitable for most homes

Benefits of Installing an EV Charger at Your Home or Business

• Convenience: Charge your EV anytime without needing to visit public charging stations or wait in queues.
• Cost Savings: Charging at home or work, especially during off-peak hours, can be cheaper than using public chargers or buying fuel.
• Energy Efficiency: Pairing with solar panels or smart charging helps you use cleaner, lower-cost energy while avoiding unnecessary power use. Smart chargers can monitor energy use, schedule charging during cheaper off-peak times, and manage how power is delivered if you have more than one EV or a variable electricity plan.
• Increase in Home Value: A dedicated EV charger can make your property more appealing to future buyers or tenants.
• Attracting Customers or Tenants: For businesses and rentals, offering EV charging can help draw in eco-conscious drivers.
• Tax and Incentive Opportunities: Depending on your location, rebates or tax incentives may be available to offset installation costs.

Why Choose iStore for Your EV Charging Solutions?

For EV charging at your home or business, you want a setup that’s simple, reliable, and cost-effective. As an Australian-owned, family-run company, we truly understand what you need.

Our EV chargers work with your lifestyle, not the other way around. They give you fast, efficient charging with the option to connect to hybrid solar inverters and solar batteries for even bigger electricity savings and an even smaller impact on the environment.

With iStore, you’ll enjoy local support, expert advice, and quality products that go the distance. Charge with confidence, knowing you’re getting a smarter, more convenient way to power your EV.

We supply two EV charger models to suit different charging needs.

1. 7.4kW 230V AC 1-Phase EV Charger: This model offers overnight charging using a standard single-phase power supply. It’s ideal for everyday EV use and suits typical Australian household energy setups.
2. 22kW 400V AC 3-Phase EV Charger: Designed for larger homes or businesses with a 3-phase power supply, this model delivers much faster charging to larger EVs, multiple vehicles, or commercial vehicles.

FAQs

What Does an EV Charger Do?

An EV charger supplies electricity to an electric vehicle’s battery, allowing it to recharge. It connects to a power source and controls how quickly and safely energy is delivered to the car.

Can I Have an EV Charger at Home?

Most homes can support an EV charger. Level 1 chargers plug into a standard outlet, while Level 2 chargers may need a licensed electrician to install a dedicated circuit.

What Are the Different Types of EV Chargers?

There are three main types of EV charger: Level 1 (slow, plugs into a standard outlet), Level 2 (faster, requires a dedicated circuit), and DC fast chargers (very fast, typically for commercial use).

How Much Does It Cost to Install an EV Charger in Australia?

Most EVs come with a free Level 1 charger. For faster charging, you’ll need a dedicated Level 2 charger.

Level 2 EV chargers can cost between $500 and $2,000. Including labour and materials, installation can cost $700 to $1,300. So overall, you could pay $1,200–$3,300.

Installing a DC fast charger (DCFC) at a business can cost between $50,000 and $160,000+. This price includes around $40,000 to $100,000 for the charger itself and $10,000 to $60,000+ for installation, electrical upgrades, and site preparation.

Power Your EV with Smart Charging Solutions from iStore

If you were wondering, “What is an EV charger?”, we’re sure you’re not anymore! 

But if you have questions about how to choose the right EV charger for your home or business, we’re more than happy to help.

Browse our range of the best home EV chargers in Australia today, then get in touch by calling 1300 515 640 or filling out this online form. 

Convenient and efficient EV charging awaits!

As more households look to cut their energy costs and reduce their reliance on the grid, solar batteries are stepping into the spotlight. 

For solar installers, they’re no longer just an optional add-on; they’re becoming a key part of the conversation. And for customers, they’re a way to take control of how and when they use solar power.

Whether you’re an installer explaining battery options or a homeowner weighing up your solar investment, it’s important to understand the answer to the question: “How do solar batteries work?”

Then, you’ll be in a better position to compare products, understand their benefits, and make informed decisions that suit each home’s energy needs and budget.

What Are Solar Batteries, and How Do They Work?

Solar batteries are energy storage systems designed to hold excess electricity generated by solar panels. Instead of sending unused solar power back to the grid, these batteries store it for later use, like at night, during cloudy days, or when there’s a blackout.

How do solar batteries work? Here’s the process.

1. Power Generation: During the day, solar panels absorb sunlight and generate direct current (DC) electricity.
2. Power Conversion: A hybrid inverter converts that DC electricity into alternating current (AC) power for use in the home. At the same time, it directs any extra energy into the solar battery for storage.
3. Power When Needed: When the sun goes down or a home’s energy use spikes, the house automatically draws power from the battery first, reducing the need to buy electricity from the grid.

Solar Inverters: A Solar System’s Traffic Controller

A solar inverter plays a crucial behind-the-scenes role in any solar and battery setup. It manages the flow of electricity between the solar panels, the battery, and the home’s appliances.

First, it converts the electricity coming from the panels (which is in DC form) into AC electricity, which is what most appliances run on.

If there’s more solar energy than the household needs at that moment, the inverter sends the excess power to the battery for storage. Later, when energy is needed and the sun is not shining, the inverter sends stored power from the battery to the home.

A solar inverter constantly switches between sources, making decisions in real-time about where electricity should go. Without it, a solar battery system wouldn’t be able to function properly.

Types of Solar Batteries and How They Function

Battery Type	What It Is	How It Works	Pros	Cons
Lithium-Ion	The most common battery type for home solar systems	Uses lithium compounds to store and release energy through chemical reactions	High efficiency, long lifespan, compact size, fast charging	Higher upfront cost
Lithium Iron Phosphate (LiFePO₄)	A subtype of lithium-ion, known for thermal stability and safety	Similar to standard lithium-ion but uses iron phosphate for better stability and longevity	Safer, longer cycle life, resistant to overheating. The preferred choice for most households. Used at iStore	Slightly bulkier than other lithium batteries due to lower energy density. Only a problem if space is limited or a more compact setup is preferred
Lead-Acid (Flooded and AGM)	Traditional battery type, often used in off-grid systems	Stores energy using lead plates and a liquid or gel electrolyte	Lower upfront cost, widely available, simple tech	Shorter lifespan, lower efficiency, bulky, requires ventilation or maintenance (flooded)
Flow Batteries	Emerging tech, mostly used in commercial settings for now	Stores energy in external tanks using liquid electrolytes that flow through a cell	Very long lifespan, scalable capacity, easy to recycle	Expensive, large physical footprint, not yet widely used in homes
Saltwater	Newer, eco-friendly battery option	Stores energy using saltwater electrolytes rather than heavy metals	Non-toxic, recyclable, no risk of fire or overheating	Larger size, lower availability, lower energy density

Key Benefits of Solar Batteries for Homeowners

If you’re an installer trying to convince your clients they need a solar battery, or you’re a homeowner investigating whether it’s worth getting one, here are the benefits to consider.

• Energy Independence: Reduces reliance on the grid by storing excess solar power for later use, especially during peak times when electricity prices are higher or when outages occur.
• Lower Electricity Bills: Helps cut power costs by using stored solar energy instead of buying electricity from the grid.
• Backup Power: Keeps essential appliances running during blackouts or grid failures, for peace of mind.
• Environmental Impact: Makes better use of clean, renewable energy and reduces overall carbon footprint.
• Scalability: Allows homeowners to start small and expand their battery storage as their energy needs grow or budgets allow, e.g. installing more solar panels or buying an electric vehicle.

The Solar Battery Charging and Discharging Process

During the day, when solar panels generate more electricity than the home needs, the excess energy is sent to the battery. This is known as charging. The battery stores this energy instead of it being sent back to the grid.

At night, on cloudy days, or during power outages, the battery discharges, supplying that stored energy to keep appliances and lights running. The home automatically draws power from the battery first before turning to the grid.

An important factor in this process is the Depth of Discharge (DoD), which refers to the percentage of the battery’s stored energy that can be used before it needs to be recharged. For example, a battery with a 90% DoD can safely use up to 90% of its capacity each cycle. 

A higher DoD means more of the battery’s stored energy can be used each day. However, discharging too much too often can reduce the battery’s lifespan. It’s about finding the right balance between daily use and long-term durability.

Factors That Affect Solar Battery Performance

• Battery Type: Different battery chemistries, such as lithium-ion, lithium iron phosphate, or lead-acid, offer varying levels of efficiency, lifespan, and storage capacity. At iStore, we use lithium iron phosphate (LiFePO₄) batteries, as they tend to last the longest, with more charge cycles than standard lithium-ion or lead-acid batteries.
• Temperature: Extreme heat or cold can impact battery performance and longevity, especially if the system isn’t installed in a temperature-controlled space.
• Usage Patterns: Frequent deep discharges or irregular charging can wear out the battery more quickly, while consistent, moderate use supports a longer lifespan.
• System Integration: Performance improves when batteries are paired with compatible inverters, proper wiring, and smart monitoring tools (like the iStore WLAN dongle) that manage energy flow efficiently.

Why Choose iStore Solar Batteries?

With over 500 solar battery models from 86 manufacturers currently approved for installation in Australia by the Clean Energy Council (CEC), the market offers a wide range of choices. 

What makes iStore solar batteries a trusted option for homes across the country?

• Durability in Australian Conditions: Built to handle Australia’s harsh climate, from scorching summers to cool winters, without compromising performance. Our batteries can operate reliably in temperatures from -20°C to 55°C and have an IP rating of 66 for protection against dust, dirt, and heavy rain.
• Safety Features: Four layers of built-in protections against overheating, overcharging, and short circuits.
• Modular Design: Easily expandable. Each iStore battery is a stackable module weighing 50 kg, with a capacity of 5 kWh (kilowatt-hours). You can connect up to six modules to increase storage to a maximum capacity of 30 kWh.
• More Usable Energy: Delivers 100% Depth of Discharge (DoD). The full capacity of the battery can be utilised without compromising its lifespan, resulting in greater value from every charge.
• User-Friendly Monitoring: Comes with an intuitive app that displays real-time performance, battery levels, and energy usage at a glance.
• Strong Warranty: Our batteries come with a 10-year performance warranty, guaranteeing reliable storage and consistent performance for years to come. This warranty shows that we stand behind our technology and know it can go the distance in Aussie conditions. 

FAQs

How Do Batteries Work With Solar Panels?

Solar panels generate electricity during the day and power the home first. If there’s extra energy, the system sends it to the battery for storage. When the sun goes down or energy demand rises, the battery releases the stored power to keep appliances and lights running. 

A hybrid inverter actively manages the flow between the panels, battery, and home to make sure everything works smoothly.

How Do Solar Batteries Work in Australia?

Solar batteries store excess solar energy generated by rooftop solar panels during Australia’s renowned sunny days and supply that power when the sun isn’t shining. 

Our long sunny days, extreme summer heat, and occasional blackouts from storms make solar batteries particularly useful here. 

How Long Will a 10 kW Battery Last?

A 10 kW battery can typically power an average home for 8–12 hours, depending on energy usage. It may last longer if used only for essential appliances, and shorter if multiple high-energy appliances are running simultaneously.

What Happens to Solar Power When Batteries Are Full?

When a solar battery is fully charged, any excess solar power is sent back to the grid or, in some systems, redirected to power non-essential appliances. This process prevents energy from going to waste while keeping the battery protected from overcharging.

Do Solar Batteries Recharge Themselves?

No, solar batteries don’t recharge themselves. They rely on excess electricity generated by solar panels during the day to charge. Without solar input or grid charging (if supported), the battery won’t refill.

Maximise Your Energy Independence with iStore Solar Batteries

How do solar batteries work?

Think of them as a home’s personal power bank, quietly saving up the extra solar energy collected during the day so it’s ready to use when the sun isn’t out. For powering appliances after dark, keeping the lights on during a blackout, or cutting down energy bills, a solar battery gives solar power a second life.

In a world where energy costs keep rising and sustainability matters more than ever, solar batteries are becoming an integral part of building smarter, more efficient homes. 

That’s why iStore is committed to delivering solar battery solutions built for Australian homes. Our systems are durable enough to handle local conditions, efficient enough to make a real difference, and packed with safety features for added confidence.
Browse our solar battery and solar inverter range today, then get in touch for a consultation or quote by calling 1300 515 640 or filling out this online form.