Top Best Solar Battery Installers in Perth

Perth has become one of Australia's solar success stories. Blessed with approximately 3,200 hours of sunshine annually, the city offers ideal conditions for rooftop solar systems. Today, Western Australia has one of the highest rates of household solar adoption in the world, with more than 40% of homes generating electricity from solar panels. Rising electricity prices, growing interest in battery storage, and increasing awareness of renewable energy have encouraged thousands of households and businesses to invest in solar energy.

However, choosing the best solar battery installer in Perth is just as important as selecting quality panels and inverters. A poorly installed system can reduce energy production and lead to expensive maintenance costs. Experience, customer reviews, workmanship warranties, product quality, and after-sales support are among the key factors homeowners should consider.

Based on installation numbers, local presence, industry accreditations, customer feedback, and years of experience, these three companies stand out among Perth's leading solar installers.

1. Solar 365

Solar 365 is a Perth's trusted and leading solar panel installation company, providing residential and commercial solar solutions throughout Perth and Australia. The company has completed more than 4,000 solar and battery installations and has earned more than 168 five-star Google reviews and is a member of the Clean Energy Council. Its installers are qualified electricians and SAA-accredited professionals.

Founded with the goal of making renewable energy more accessible, Solar 365 provides complete energy solutions including solar panel installations, battery storage systems, commercial solar projects, inverter replacements, and system upgrades. The company works with premium brands and designs systems specifically for Western Australian conditions.

Unlike many national retailers, Solar 365 focuses heavily on local customer support. The company's experienced team of designers, electricians, and installers aims to maximize energy production while helping customers reduce electricity bills.

Services

• Residential solar systems
• Commercial solar installations
• Battery storage solutions
• Solar panel upgrades
• Inverter replacements
• System monitoring and maintenance

Why Solar 365 Stands Out

• More than 4,000 installations completed
• 166+ five-star Google reviews
• Local Perth-based team
• Residential and commercial expertise
• Premium solar and battery brands
• Strong focus on after-sales support

As battery adoption increases across Western Australia, Solar 365 has also expanded its energy storage offerings, helping customers maximize self-consumption and reduce reliance on the grid.

2. Koala Solar

Koala Solar has grown into one of the state's good solar companies. The company has completed more than many installations across Perth and regional Western Australia.

Koala Solar provides residential and commercial solar systems, battery storage, hot water systems, and EV charging solutions. The company is also recognized as a Tesla Powerwall Certified Installer and works with premium manufacturers including Fronius, Jinko, JA Solar, and Sigenergy.

Reviews across various platforms consistently highlight professional workmanship and quality customer service. Community discussions on Perth forums and Reddit frequently mention Koala Solar as one of the preferred installers.

Services

• Residential solar systems
• Commercial solar solutions
• Battery storage systems
• EV chargers
• Heat pump systems
• Solar maintenance

Why Koala Solar Stands Out

• 8,000+ installations completed
• Operating since 2015
• 10-year workmanship warranty
• Tesla Powerwall Certified Installer
• Clean Energy Council member
• Strong customer reputation

With nearly a decade of experience, Koala Solar continues to expand throughout Western Australia while maintaining a strong focus on quality installations.

3. Stag Electrical

Stag Electrical is one of Australia's best solar companies. The company has completed many solar and battery installations nationwide and has built a reputation for quality products.

The company has earned hundreds of five-star reviews. Stag Electrical provides complete solar and battery solutions for both residential and commercial customers and is known for its lifetime workmanship guarantee.

Every system is designed and engineered by the company's in-house technical team and installed according to strict internal standards. This commitment to quality has helped Stag Electrical maintain a strong position in Australia's competitive solar market.

Services

• Residential solar installations
• Commercial solar systems
• Battery storage solutions
• System upgrades
• Energy consultations
• Monitoring and support

Why Stag Electrical Stands Out

• More than 10,000 installations
• Operating since 2007
• SolarQuotes Platinum Rated Installer
• Lifetime workmanship guarantee
• In-house engineering expertise
• Strong national reputation

Perth's Growing Solar Industry

Western Australia continues to lead the country in rooftop solar adoption. The state's high solar irradiance makes rooftop solar one of the most cost-effective energy investments available. A typical 6.6kW system in Perth can generate approximately 25–30 kWh per day, helping households significantly reduce electricity costs. Battery storage adoption is also accelerating as feed-in tariffs decline and homeowners seek greater energy independence. Electric vehicles, heat pumps, and smart home technologies are further increasing the demand for integrated energy systems.

According to industry experts, battery installations are expected to become one of the fastest-growing segments of Australia's renewable energy sector during the next decade.

How to Choose the Best Solar Installer

Before investing in solar, homeowners should compare:

• Years of experience
• Installation numbers
• Customer reviews
• Workmanship warranties
• Industry accreditations
• Product quality
• Local after-sales support
• Battery and EV charging expertise

Price should not be the only deciding factor. A quality installation from an experienced company can deliver better long-term savings and fewer maintenance issues.

Perth's abundant sunshine and growing focus on renewable energy have made solar power an increasingly attractive investment. Among the many providers operating in Western Australia, Solar 365, Koala Solar, and Stag Electrical have established strong reputations through installation experience, customer satisfaction, and long-term support.

As solar technology and battery storage continue to evolve, selecting a best solar battery installer remains one of the most important decisions homeowners can make to ensure reliable performance and maximize their return on investment.