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A Guide to Solar Warranties

Invest In Your Peace of Mind

Investing in a solar system is one of the smartest financial and environmental decisions you can make. Solar energy is proven to save money over time while reducing your carbon footprint. But what happens if something goes wrong with your system?

At Hills Natural Solar, we understand the importance of peace of mind when it comes to your investment. That’s why we don’t just install solar systems—we stand by them with comprehensive support and industry-leading warranties.
On this page, we’ll cover:
  • What Is Hills Natural Solar’s Workmanship Warranty?
  • What Are the Warranties for the Products We Install?
  • Why Our Workmanship Warranty Stands Out from the Competition
  • How We Handle Repairs and Service Calls
  • The Fine Print (Because Every Warranty Has Some)
By the end, you’ll know exactly what to expect from Hills Natural Solar’s warranty and support services, ensuring your system stays efficient and trouble-free for years to come. It’s just one of the ways we’ve earned our reputation as a trusted solar installer in Sydney and the surrounding areas.

Product Warranties for Hills Natural Solar Installations

At Hills Natural Solar, we are committed to providing top-quality solar panels, batteries, microinverters, and racking systems to help you achieve energy efficiency. We honor the warranties provided by manufacturers for all components we install, ensuring your solar system operates reliably for years to come.
Here’s an overview of the warranties for the products we install, with links for further details.
AIKO ABC Design Solar Panels

Panel Warranties

We offer the sleek and durable AIKO ABC Design panels, which include:
  • 25-year product warranty.
  • 30-year performance warranty.
Efficiency Details:
  • Year 1: 99% efficiency.
  • Annual degradation: ~0.35% per year from Year 2 onwards.
  • After 30 years: Operates at 89.95% efficiency.
These panels are tested to withstand hail up to 25mm wide traveling at 23 meters per second.
Read More About AIKO Solar Panel Warranties
Solar Panel size

Trina Solar Vertex S+ Solar Panels

We install Trina Solar Vertex S+ panels, known for their durability and efficiency. These panels come with:
  • 25-year product warranty: Covers the panel’s structural integrity.
  • 30-year performance warranty: Guarantees power output to remain above a certain threshold.
Efficiency Details:
  • Year 1: Guaranteed at 99% efficiency.
  • Annual degradation: ~0.4% per year thereafter.
  • After 30 years: Operates at around 88% efficiency compared to its original performance.
Read More About Trina's Warranties Here

REC Alpha Pure-RX (460 W & 470 W) Warranty:

  • 20-year product warranty.
  • 25-year performance warranty.
Efficiency Details:
  • Year 1: 99% efficiency.
  • Annual degradation: ~0.25 % per year from Year 2 onwards.
  • After 25 years: Operates at 92% efficiency.
With ProTrust — if you meet the extra requirements (installation by a certified installer and product registration) — you get a 25-year product warranty, 25-year performance warranty, and a labor warranty of up to 25 years.

The Alpha Pure (non-RX) and Alpha Pure 2 series follow a similar warranty structure.
Read More About Rec Panels Warranties

Sungrow Solar Inverter Warranties

We install Sungrow inverters, trusted for their reliability and advanced performance. These inverters come with:
  • 10-year standard product warranty: Covers defects in materials and workmanship, starting from installation date, with a maximum limit of up to 11 years from manufacturing date.
  • Extended warranty options: Available for purchase within the standard warranty period, allowing total inverter coverage of up to 25 years.
Efficiency Details:
  • Accessories Warranty: Items such as communication modules, smart meters, and loggers have a 1-year warranty from installation, or 2 years from manufacturing—whichever comes first
  • No typical annual degradation like solar panels — performance remains consistent under normal operating conditions.
Read More About Sungrow Solar Inverter Warranties Here

Sigenergy SigenStor Battery Warranty:

We install Sigenergy SigenStor batteries, designed for long-lasting energy storage and dependable performance. These batteries come with:
  • 10-year product warranty: Covers defects in materials and workmanship under normal use.
  • Performance warranty: Guarantees the battery will retain at least 70% of its usable capacity after 10 years or a specified cycle count (whichever comes first).
  • Year 1: Guaranteed near 100% usable capacity.
  • Capacity degradation: Gradual reduction over time, averaging around 2–3% per year depending on usage patterns.
  • After 10 years: Operates at or above 70% of original capacity.
Efficiency Details:
Read More About Sigenergy SigenStor Battery Warranties

Enphase Microinverters

Enphase microinverters are designed for durability and high performance.
In Australia, these come with:
25-year warranty.
More Information

Aiko Solar Panels

Aiko Solar Panels offer a 15-year product warranty for dependable quality and peace of mind.
They also include a 30-year performance warranty, guaranteeing strong energy output over time.
More Information

Battery Warranties

Enphase IQ Battery 5P

The Enphase IQ Battery 5P is a top-tier solar battery offering:

15-year warranty or 6,000 cycles (whichever comes first).

Cycle Definition: A cycle refers to a full charge and discharge of the battery, typically occurring once daily in most homes. This warranty begins once the battery is installed and connected to the Enphase Enlighten App.

More Information

Enphase IQ Controller

The IQ Controller, which communicates with the Enphase IQ Batteries and ensures your solar system’s safe connection to the grid, comes with a:

10-year warranty.

More Information

Tesla Powerwall 3

• 10 years with unlimited cycles.

Key Points:

• Includes coverage for the Tesla Gateway, which manages energy flow, metering, and monitoring.

• If the Powerwall is not connected to the app, the warranty is limited to 4 years.

More Information

Hills Natural Solar Compared to Others

At Hills Natural Solar, we provide a 10-year workmanship warranty because we believe in treating our customers the way we would want to be treated. Our high-quality products mean repairs and replacements are rarely needed.
Start Your Solar Journey with Hills Natural Solar
Your project handled by accredited experts
At Hills Natural Solar, we have an experienced in-house team of SAA accredited electricians and trusted installers who manage every project with care. From consultation through to installation and aftercare, you deal directly with us, ensuring a seamless experience and clear accountability at every stage.

Why this matters: Some companies may pass customers between sales teams and installers, creating confusion if warranty or service issues arise. With Hills Natural Solar, you always have one reliable point of contact, backed by our 10-year workmanship warranty.

Our commitment to detail, safety, and customer satisfaction means your solar system is installed to the highest standards, giving you peace of mind for years to come.

What’s in the Fine Print?

The fine print in warranty contracts is crucial. Here are some key points to be aware of to avoid surprises:

Transferability

The warranty for workmanship and product warranties can be transferred by the original purchaser to any subsequent owners of the property where the system is installed.

Effectiveness

The warranty is only valid once all payments related to the solar system have been made and the title of the system has passed to you.
The warranty will no longer apply if:
  • Anyone other than a Hills Natural Solar installer, or an authorised representative, repairs or alters the system.
  • You fail to follow Hills Natural Solar’s reasonable instructions regarding system operation and care.

Exclusions

This warranty does not cover:
  • Your existing electrical installation, wiring, or fuse box.
  • Malicious damage or abuse.
  • Damage caused by pests, vermin, or animals.
  • Acts of nature, power surges, accidents, or other events beyond our control.
  • Damage to your property caused by system failure.
  • Alterations to your property necessary for the installation.
  • Damage not reasonably foreseeable or outside the scope of Australian Consumer Law guarantees.

Australian Consumer Law Guarantees and Remedies

Our installation services come with guarantees under Australian Consumer Law that cannot be excluded.

If there is a problem with the installation that is not considered a “major failure” and can be remedied, we will resolve the issue at no cost within a reasonable time.
For major failures or issues that cannot be remedied, you are entitled to:
  • Cancel your agreement and receive a refund.
  • Receive compensation for the difference in value between what was promised and delivered.
You are also entitled to compensation for any reasonably foreseeable losses caused by our failure to meet these guarantees.
Hills Natural Solar is not liable for personal injury or unforeseeable losses resulting from the above circumstances.

Warranties & Peace of Mind

At Hills Natural Solar, we’re proud to stand by the warranties on the products we install. Our robust warranties reflect the quality of our workmanship and products.

We’ll be here to support you on your solar journey long after your system is installed. All you have to do is give us a call.
Give Us A Call
Hills Natural Solar, based in the Hills District, offers premium solar services and installations for both residential and commercial projects.
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Get In Touch

Natura Rise, Norwest NSW 2153, Australia

info@hillsnaturalsolar.com.au

(02) 9838 1090

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