Top 10 Best Solar Installers in Perth (2026): Compared Using Public Data

Best solar installers Perth homeowners can compare in 2026, with the WA grid rules, buyback rates, rebates and prices that affect which quote is right for you.

How this list works: Tally Energy Group is our #1 pick. The other nine companies appear in alphabetical order, not in order of quality. Prices and rules below come from the named public sources and were checked in October 2026. Always confirm current details with each installer.

Last updated: October 2026

Perth Solar Snapshot (2026)

• Indicative system prices after STCs (Solar Choice index, 1 Oct 2026, Perth): 3kW $3,060, 5kW $4,260, 6kW $5,030, 10kW $8,240
• Grid operator: Western Power (Synergy for most retail customers)
• New system rules from 1 May 2026: remote management using CSIP-AUS, or a fixed 1.5kW export limit
• DEBS buyback: about 10c/kWh from 3pm to 9pm, about 2c/kWh at other times (Synergy, 2026-27)
• Battery incentives: federal Cheaper Home Batteries discount, plus the WA Residential Battery Scheme for eligible VPP-capable batteries

Why the Perth Solar Market Is Different

Choosing the best solar installers Perth has to offer is not only about the lowest quote. Perth sits on the South West Interconnected System, managed by Western Power, and the rules differ from the east coast. A good installer designs around export limits, the evening buyback window and local conditions such as coastal salt air.

Flexible exports and CSIP-AUS (from 1 May 2026)

Under the WA Government requirements, new or upgraded systems of 30kVA or less connected from 1 May 2026 must support remote management for customers taking part in export products such as DEBS. Synergy customers use the CSIP-AUS protocol. Customers who do not take part, or cannot keep an internet connection, can use a fixed 1.5kW export limit instead. Source: Energy Policy WA.

DEBS: why the evening matters

Synergy’s Distributed Energy Buyback Scheme pays about 10c/kWh for exports between 3pm and 9pm and about 2c/kWh at other times, so the average is low. Solar used at home during the day, and stored solar used in the evening, is usually worth more than solar exported at midday. Source: SolarQuotes WA feed-in tariffs. Rates are reviewed each year.

What does solar cost in Perth in 2026?

The Solar Choice Price Index (1 October 2026, after the STC discount, including GST) shows Perth at about $3,060 for 3kW, $4,260 for 5kW, $5,030 for 6kW and $8,240 for 10kW. These are market averages from an industry index, not quotes from any company on this page. The STC discount reduces each year (5 years of deeming in 2026, 4 in 2027), so net prices tend to rise over time. Source: Solar Choice.

Battery rebates in WA

Eligible batteries can receive the federal Cheaper Home Batteries discount. The WA Residential Battery Scheme adds up to $1,300 for Synergy customers or up to $3,800 for Horizon Power customers (based on 10kWh usable capacity). The battery must be VPP-capable and installed by an approved installer, and the household joins its retailer’s VPP program. The state scheme runs until the planned 100,000 rebates are used. The federal discount reduces on 1 January 2027. Sources: WA Government and our federal battery rebate guide.

Top 10 Solar Installers in Perth: Quick Comparison

The nine companies after Tally are listed alphabetically. We have not independently rated them, so use the checklist below and public review sites such as SolarQuotes, ProductReview and Google reviews before you decide.

1. Tally Energy Group (TEG): Our #1 Pick for Perth in 2026

Tally Energy Group designs and installs residential and commercial solar and batteries across NSW and WA. For Perth homes, the approach is to size the system around your roof, your daytime and evening energy use, your budget and whether you want a battery, rather than selling the biggest system possible.

What Tally installs

• Panels: Tier-1 panels from REC, Qcells and Jinko.
• Batteries: Alpha ESS, Sungrow, Sigenergy, Fox ESS, Dyness and Sofar.
• System sizes: 6.6kW, 10kW and 13kW for homes, with 20kW, 30kW and larger systems for businesses.
• WA rules: systems are designed to meet the 1 May 2026 WA requirements, including CSIP-AUS remote management where it applies.

Best for: Homeowners who want a system designed around WA export rules and DEBS, and the option to add a battery now or later.

See Tally’s Perth solar page or call 1800 945 085 for a free quote.

Other Perth Solar Installers to Compare

These installers appear in alphabetical order, with no ranking: Empower Solar, Koala Solar, Perth Solar Force, Perth Solar Warehouse, Regen Power, Solaire Connect, Solar Naturally, Solargain and Sunboost. Get at least three written quotes and compare them using the checklist below.

How to Choose a Solar Installer in Perth (Checklist)

1. Accreditation: ask for the installer’s Clean Energy Council (CEC) accreditation number and check it on the CEC register.
2. Licence: confirm the electrical contractor’s licence with WA Building and Energy.
3. Compliance with 1 May 2026 rules: ask how the inverter will meet CSIP-AUS and what happens if your internet drops.
4. System size: ask why that size, based on your usage and DEBS rates, not only your roof space.
5. Named equipment: panels and inverter models and warranties should be written on the quote.
6. Coastal homes: ask whether the equipment suits salt air.
7. STC treatment: check that the quote shows the price after the STC discount and how many STCs are assumed.
8. After-sales: check who services the system, how warranty claims work and read recent reviews.
9. Battery: if you want one, confirm it is VPP-capable and eligible for the WA and federal rebates before signing.

Be cautious of quotes that hide product details, avoid technical questions, or are far below the market prices above without a clear reason.

Which Perth Installer Is Right for You?

Tally Energy Group is our #1 pick for Perth in 2026 for homeowners who want a system designed around WA export rules. If you are still comparing, shortlist three installers, ask each the checklist questions above and choose on equipment, warranty, design and after-sales support, not price alone.

FAQ: Top Solar Installers in Perth (2026)

Who is the best solar company in Perth in 2026?

Tally Energy Group is our #1 pick for Perth in 2026. The right choice still depends on your roof, usage and budget, so compare at least three written quotes.

Are solar rebates still available in WA?

Yes. The STC discount applies to eligible solar systems. For batteries, the federal Cheaper Home Batteries discount applies and the WA Residential Battery Scheme is open until its planned 100,000 rebates are used. Check eligibility before you sign.

Is a battery worth it in Perth in 2026?

For many households it can be, because midday exports earn about 2c/kWh under DEBS while evening grid power costs more. Whether it pays back depends on your usage, battery size and the incentives you receive, so ask for a written payback estimate that shows its assumptions.

How much does a 6.6kW solar system cost in Perth in 2026?

The Solar Choice index (1 October 2026) shows about $5,030 for a 6kW system in Perth after STCs, so a 6.6kW system is typically a little higher. Prices vary with equipment, roof complexity and the installer, so get written quotes.

Get a Free Solar Quote in Perth 

By analysing the top 10 solar Installers in  Perth 2026, homeowners can choose a reliable installer and avoid poor-quality systems.

 Call TEG: 1800-945-085

or request a quote through the website.

Perth

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Solar Panel System Sizes

6.6kW Solar System, 10kW Solar System ,13kW Solar System ,20kW Solar System,30kW Solar System,

Batteries Brands Fox Ess Battery ,Alpha Ess Battery ,Dyness Battery , Sungrow Battery, Sigenergy Battery , Sofar Battery 

Service Location – Sydney ,Perth , Brisbane ,Adelaide ,Melbourne