Frequently Asked Questions
Residential solar:
common questions
A typical residential system runs between $4,000 and $12,000 installed after the panel rebate, with a 6.6 kW system at the lower end and a premium 10 kW system higher up. Your final price depends on system size, panel quality and any switchboard work. Adding storage lifts the total but also increases long-term savings.
Most homes fit a 6.6 to 10 kW system, which is roughly 15 to 25 panels depending on wattage and available roof space. North-facing sections capture the most sun, though east and west faces still perform well and can spread generation across the day. A site assessment confirms the exact layout.
A standard rooftop install is usually finished in one day, with a battery-paired system occasionally extending into a second. Meter changes and grid connection can take a little longer and depend on your network provider, a step that is coordinated for you as part of the job.
Yes. North-facing panels yield the most, but east and west orientations generate strong output and can better match morning and evening usage. Panel placement, tilt and any shading are all factored into the design so the system produces well for your specific roof.
Home systems qualify for the small-scale technology certificate discount on panels, deducted upfront from the price. Adding an eligible battery also draws the federal Cheaper Home Batteries discount. Check current figures on the battery rebate page.
Commercial solar:
common questions
Commercial solar cuts daytime energy costs, which suits businesses that operate during daylight hours when generation is highest. It hedges against rising commercial tariffs, supports sustainability targets, and can improve your building’s value. Many systems deliver a strong return within a few years while continuing to produce for decades.
Savings depend on your consumption profile, tariff and system size, but businesses with heavy daytime usage often offset a large share of their grid bill. The more of your own generation you use on site rather than exporting, the faster the payback. A tailored assessment gives a realistic figure for your operation.
Commercial systems range widely, from tens of kilowatts for a small premises to hundreds for larger sites. The right size matches your daytime load so you self-consume most of what you generate. An energy analysis of your usage and roof or ground space sets the ideal capacity.
Yes. Systems up to 100 kW earn small-scale technology certificates that reduce the upfront cost, while larger installations may use large-scale generation certificates instead. Eligible battery storage can also attract the federal discount. The available incentives depend on your system size and setup.
Timeframes scale with system size, from a few days for a modest rooftop to several weeks for a large ground-mount or multi-building project. Design, approvals and grid connection add lead time, all of which are managed as part of the project so your operations face minimal disruption.
Choosing solar panels:
common questions
Weigh efficiency, warranty length, temperature performance and the manufacturer’s track record rather than the headline wattage alone. Efficiency tells you how much power you get from a given roof area, while the performance warranty shows how much output the panel still delivers after 25 years. A strong temperature coefficient matters in Australia’s heat.
N-type is the newer cell technology and now leads the premium market. Compared with older P-type PERC panels, N-type designs such as TOPCon, HJT and back-contact reach higher efficiency, degrade more slowly and hold output better in high temperatures. That makes them well suited to hot Australian roofs.
The best residential panels in 2026 exceed 23 per cent module efficiency, with leading models reaching the mid-24 per cent range. Higher efficiency lets you fit more capacity onto a limited roof, which is valuable when space is tight. Explore high-efficiency options across our panel range.
The strongest performers pair high efficiency with a good temperature coefficient and a long performance warranty, since heat and durability matter most here. Premium N-type brands lead on output and longevity, while quality tier-one panels offer excellent value. The best fit depends on your roof size, climate zone and budget.
Quality panels carry a product warranty of roughly 15 to 25 years covering defects, plus a separate performance warranty guaranteeing output at year 25, often around 87 to 92 per cent. Premium N-type ranges push performance cover out to 30 years. Always compare both figures, not just one.
Solar inverters:
common questions
The inverter is the brain of your system. It converts the direct current your panels produce into the alternating current your home and the grid use, and it manages output, monitoring and safety. Without a working inverter, the electricity from your panels cannot power your appliances.
A string inverter handles solar only, converting panel output for immediate use or export. A hybrid inverter does that and also manages a battery, directing surplus energy into storage and drawing it back out when needed. Choosing a hybrid unit upfront makes adding a battery later far simpler.
It helps but is not always essential. A hybrid inverter lets a battery connect directly and efficiently, which is why most battery-ready systems use one. Homes with an existing string inverter can still add a battery through an alternative coupling method, though a hybrid setup is usually the cleaner path.
Inverters typically last 10 to 15 years, shorter than the panels they serve, and usually carry a 5 to 10 year warranty that can often be extended. Because they work hard every day, they are the component most likely to need replacing once during the life of a system.
Inverter capacity is matched to your panel array and household demand, and it is often sized slightly below the panel wattage to run efficiently. If you plan to add a battery or expand later, choosing a hybrid or higher-capacity unit now avoids a costly change down the track. Browse options in our inverter range.
REC solar panels:
common questions
REC is a premium manufacturer known for heterojunction cell technology, a very low degradation rate and strong frame durability. The Alpha Pure range delivers around 22.6 per cent efficiency and holds a high share of its output over the long term, which makes it a favourite for buyers who prioritise longevity over lowest price.
Yes. REC is widely trusted for coastal and waterfront properties where salt exposure and wind demand a robust panel and frame. Its build quality and corrosion resistance are a key reason installers recommend it near the ocean, though very close installs may still need appropriate corrosion-rated mounting.
REC panels come with a 25-year product warranty covering the panel itself, alongside a performance warranty that guarantees a high output at year 25, around 92 per cent on the top models. That combination of long defect cover and strong end-of-warranty output reflects the brand’s premium positioning.
Their heterojunction cells have a favourable temperature coefficient, meaning they lose less output as the panel heats up. That is a real advantage on hot Australian roofs, where a cooler-running panel keeps generating more through summer than a design that fades in high temperatures.
Yes. As CEC-approved panels installed by an accredited installer, REC systems earn the small-scale technology certificate discount, deducted from your price upfront. Pair them with an eligible battery to add the federal storage discount. Compare the full panel range.
Solar finance:
common questions
Yes. Flexible payment plans let you spread the cost of a system over a set term rather than paying the full amount upfront. This puts panels and a battery within reach for many households, since the monthly repayment can be offset by the savings the system delivers on your power bill.
For many households it is, because the bill savings often begin immediately while the cost is spread over time. When the monthly saving is close to or greater than the repayment, the system effectively pays its own way from the start. The maths depends on your usage, tariff and finance terms.
Yes. Government rebates apply to the system regardless of how you pay, and the panel and battery discounts are deducted from the price before finance is arranged. Financing simply spreads the already-reduced cost, so you keep the full benefit of the incentives.
Approval generally depends on your credit history and the system size, with terms tailored to suit. Providing a few details lets us match you to a suitable plan and confirm what your repayments would look like. See current plans on our finance options page.
Often they come close or exceed them, particularly for households with high usage and a well-sized system paired with a battery. The exact balance depends on your energy habits and tariff, so a tailored quote shows how your projected savings compare against the repayment schedule.
Trina solar panels:
common questions
Trina pairs strong efficiency with competitive pricing, which makes the Vertex range a popular value choice. Its latest N-type i-TOPCon models reach up to around 24 per cent efficiency, and the brand backs them with a long performance warranty, giving buyers premium output without the top-tier price tag.
The Vertex S+ range reaches into the mid-24 per cent efficiency band on leading models and carries a 30-year performance warranty, which is among the longest available. Low first-year degradation followed by a slow annual decline means the panels keep delivering strong output well into their third decade.
Yes. Trina’s anti-soiling frame design is built to shed dust and improve yield in dry, dusty conditions, which is useful across much of inland Australia. Combined with tier-one manufacturing scale, that makes them a dependable choice for regional and drier climates.
Trina is a long-established tier-one manufacturer with a local Australian office supporting warranty claims. That local presence matters over a system’s decades-long life, since it makes any future claim simpler to handle than dealing with an overseas-only supplier.
Yes. Trina panels are CEC-approved, so a system installed by an accredited installer earns the upfront panel certificate discount. Adding an eligible battery brings the federal storage discount on top. See how they compare across our panel range.
Aiko solar panels:
common questions
Aiko has quickly become a top pick among Australian installers thanks to its All Back Contact cell technology, which places every electrical contact on the rear of the cell for a clean front surface and higher light absorption. The Neostar range reaches up to around 24 to 25 per cent efficiency, among the highest for mass-produced panels.
All Back Contact removes the thin lines usually seen on a panel’s face, so more of the surface captures sunlight. The result is higher efficiency, better shade tolerance and a sleek all-black look. For homes with limited roof space or partial shading, that design squeezes more generation from every panel.
Aiko panels perform strongly in high temperatures and are built with robust hail resistance, both of which matter in Australian conditions. Their heat tolerance helps maintain output through summer, while the sturdy construction stands up to storms. Coastal installs within a few hundred metres of the ocean should use corrosion-rated mounting.
Aiko backs the Neostar range with a 30-year performance warranty guaranteeing a high output late in life, alongside a product warranty on the panel itself. That long performance cover reflects the low degradation of the ABC design and gives buyers confidence in decades of strong generation.
Yes. Aiko panels are CEC-approved, so an accredited installation earns the upfront panel certificate discount, and adding an eligible battery brings the federal storage discount too. See how the premium efficiency compares across our panel range.
BYD Battery-Box:
common questions
The BYD Battery-Box stands out for its capacity retention warranty, one of the strongest in the market, and its genuine modularity that lets you start small and stack more later. It uses safe lithium iron phosphate cells and works with a wide range of major hybrid inverters, giving it flexibility few rivals match at its price.
BYD guarantees a high share of usable capacity at year 10, which sits at the top of the Australian market and ahead of several premium competitors. Paired with a long cycle life from its lithium iron phosphate chemistry, that means more guaranteed usable energy late in the battery’s life.
Yes. The Battery-Box is built around stackable modules, so you can begin with a smaller capacity and add more as your needs grow, such as when you buy an electric vehicle or extend backup coverage. Each module ships pre-tested and stacks without specialist work.
The Battery-Box is DC-coupled and pairs with a compatible hybrid inverter from several major brands, which is part of its appeal for retrofits. Your installer confirms your inverter is compatible and on current firmware before fitting. Compare it with other units on our battery range.
Yes. The Battery-Box is CEC-approved, so it draws the tiered federal discount when fitted by an accredited installer. Check the current amount on our battery rebate page.
Sungrow battery:
common questions
Sungrow is one of the world’s largest inverter and battery manufacturers, and its modular lithium iron phosphate range has become one of Australia’s most-installed for its blend of proven reliability and competitive pricing. It offers full usable capacity and pairs tightly with Sungrow hybrid inverters for a well-matched, efficient system.
Very well. The range is designed to maintain its full rated output at ambient temperatures up to around 45 degrees, where some competitors throttle back above 40. That heat tolerance matters in Queensland, Western Australia and South Australia, where summer temperatures regularly climb past 40 degrees.
The standard modular range stacks in small increments to suit typical homes, while the high-voltage series scales into larger single-stack capacities for bigger households and light commercial use. Because it is modular, you can size it to your usage now and expand later without replacing the whole system.
Sungrow batteries come with a 10-year warranty, and the lithium iron phosphate cells are typically rated for several thousand cycles, translating to well over a decade of daily use. Real-world life often extends beyond the warranty term thanks to the durable chemistry.Sungrow batteries come with a 10-year warranty, and the lithium iron phosphate cells are typically rated for several thousand cycles, translating to well over a decade of daily use. Real-world life often extends beyond the warranty term thanks to the durable chemistry.Sungrow batteries come with a 10-year warranty, and the lithium iron phosphate cells are typically rated for several thousand cycles, translating to well over a decade of daily use. Real-world life often extends beyond the warranty term thanks to the durable chemistry.
Yes. As a CEC-approved battery installed by an accredited installer, it earns the tiered federal discount at the point of sale. Confirm your figure on our battery rebate page and compare models on the battery range.
Sigenergy SigenStor:
common questions
The SigenStor is a premium all-in-one system that combines battery storage, inverter, energy management and optional electric vehicle charging in a single modular tower. It rose to the top of the Australian sales charts quickly thanks to its smart, feature-rich design, and it suits homes wanting high performance and future expandability rather than a simple standalone battery.
Yes. Sigenergy comes in both single-phase and three-phase versions, with the three-phase model offering native three-phase output and strong continuous power. That makes it a standout for three-phase properties and larger homes, an area where many batteries are limited to single-phase setups.
Yes. The system is designed with an integrated electric vehicle charging path and vehicle-to-home capability on supported models, so it can charge your car from stored solar and, where enabled, draw power back from the vehicle. That integration is a key reason buyers with an EV or plans for one choose it.
Sigenergy provides a 10-year warranty that can be extended to 15 years, giving longer cover than many rivals. Combined with a high cycle rating and lithium iron phosphate chemistry, that extended option appeals to buyers who want long-term certainty on a premium system.
Yes. It is CEC-approved in both single and three-phase versions, so it draws the tiered federal discount when installed by an accredited installer, and it can be retrofitted to existing solar as well as installed as a complete system. See current figures on our battery rebate page.
GoodWe battery:
common questions
GoodWe is a value specialist, offering some of the lowest cost-per-kilowatt-hour storage from a major brand, including one of the few batteries that retrofits onto an existing inverter. Its lithium iron phosphate range covers a DC-coupled option matched to GoodWe hybrid inverters and a flexible AC-coupled retrofit line.
Yes, with the AC-coupled option. GoodWe’s flexible retrofit line is designed to add storage to an existing solar system without swapping your inverter, which makes it a practical, lower-cost route to a battery. The DC-coupled line instead pairs with a GoodWe hybrid inverter for a matched new system.
Yes. On a cost-per-usable-kilowatt-hour basis it is among the cheapest quality options in Australia, delivering the core job of storing cheap daytime solar for the evening at a lower price than feature-heavy premium systems. If advanced extras are not a priority, it offers strong value
GoodWe batteries carry a 10-year warranty and use lithium iron phosphate chemistry for safe, durable daily cycling. That standard cover, from an established global manufacturer with local distribution, gives value-focused buyers dependable long-term protection.
Yes. As a CEC-approved battery, it earns the tiered federal discount when installed by an accredited installer, which sharpens its already-strong value. Compare it against other options on our battery range.
AlphaESS battery:
common questions
AlphaESS is a widely recommended residential storage brand offering modular systems that scale to suit different household sizes. Its range is a common choice for homes wanting flexible, expandable storage from an established manufacturer, with lithium iron phosphate chemistry for safe daily cycling.
Yes. The modular design lets you match storage to your usage, starting with a capacity that covers your evening demand and adding more later if your needs grow. That flexibility suits households that expect their energy use to rise, such as adding an electric vehicle or extending backup.
AlphaESS offers single-phase systems that are well established across Australian homes, and its three-phase options continue to expand. Since approvals and model availability shift over time, your installer confirms the right configuration and current CEC approval for your property before quoting.
AlphaESS batteries typically carry a 10-year warranty backed by lithium iron phosphate cells built for long service life. That standard term, combined with local support, gives buyers dependable cover over the storage system’s working life.
Yes. As a CEC-approved battery fitted by an accredited installer, it draws the tiered federal discount at the point of sale. Check your figure on our battery rebate page.
Fox ESS battery:
common questions
Fox ESS is a globally established brand whose battery and inverter systems are used across many countries. Its modular lithium iron phosphate range offers a strong balance of value and cover, and it is a practical choice for households wanting dependable storage that expands in modules to match their capacity needs.
Fox ESS backs its batteries with a warranty that reaches up to around 12 years on leading models, which is longer than the standard 10-year term many rivals offer. That extra cover at an accessible price point is one of the brand’s main draws for value-conscious buyers.
Yes. The range is built from stackable modules, so you can start with a capacity that suits your current usage and add more later. That modular approach lets the system grow alongside rising energy demand without replacing what you already have.
Yes. Fox ESS competes strongly on price per kilowatt-hour while offering a longer-than-average warranty, making it a sensible pick for buyers who want solid storage and good cover without paying premium-brand prices. Its lithium iron phosphate cells handle daily cycling safely.
Yes. As a CEC-approved battery installed by an accredited installer, it earns the tiered federal discount at the point of sale. Compare it with other options on our battery range.
SAJ battery:
common questions
SAJ is a solar and storage manufacturer offering home batteries that pair with its inverter range, aimed at households wanting a cost-effective, straightforward storage solution. It uses lithium iron phosphate chemistry for safe daily cycling and suits buyers after dependable performance without premium-tier extras.
As with any home battery, the right size depends on how much energy you use after dark, with most households well served by enough storage to cover the evening and overnight peak. Sizing to your usage also aligns with the strongest tier of the federal rebate. Your installer confirms the ideal capacity.
AlphaESS offers single-phase systems that are well established across Australian homes, and its three-phase options continue to expand. Since approvals and model availability shift over time, your installer confirms the right configuration and current CEC approval for your property before quoting.
SAJ batteries are covered by a manufacturer warranty on the storage unit, with lithium iron phosphate cells built for a long cycle life. Confirm the exact warranty term and conditions for your chosen model at the time of quoting, since cover can vary by product.
Provided the model is CEC-approved and fitted by an accredited installer, it draws the tiered federal discount at the point of sale. Confirm eligibility and the current amount on our battery rebate page.
Neovolt battery:
common questions
Neovolt offers home storage aimed at households wanting reliable capacity at a competitive price. Like other quality home batteries, it stores your surplus daytime solar so you can use it through the evening instead of buying grid power at peak rates, which is where most of the savings come from.
The right capacity comes down to your evening and overnight energy use, with most households covered by storage sized to the peak period. Matching capacity to the first part of the rebate tier also captures the strongest discount. A usage review sets the ideal size for your household.
Backup capability depends on the model and whether it is paired with a compatible inverter and configured for it. Where enabled, it can keep essential circuits powered during an outage. Your installer confirms what backup your chosen setup provides.
Neovolt batteries come with a manufacturer warranty on the storage unit. Because terms and conditions vary by product, confirm the exact warranty length and coverage for your chosen model when you request a quote.
Provided the model is CEC-approved and installed by an accredited installer, it earns the tiered federal discount at the point of sale. Check current eligibility and figures on our battery rebate page, and compare models on the battery range.
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