Independent ranking · Updated 16 April 2026
We compared 3 of the highest-rated solar installer serving Perth and surrounding areas in 2026, combining 2,762 public reviews, transparent pricing, and service coverage. This list ranks by independent score — no pay-to-play.
The top-rated solar installer in Perth for 2026 is Koala Solar — Koala Solar consistently ranks among the top solar installer in Perth. Runners up: MLEC Solar and PSW Energy, Perth Solar Warehouse. All 3 providers in this guide serve Perth with verified reviews and transparent pricing.
Sourced from 2,762 aggregated reviews, average rating 4.9/5 across 3 providers.
Perth, Australia
Best for: clients who prefer online-first service
Koala Solar consistently ranks among the top solar installer in Perth. Koala Solar is a verified solar installers provider in Perth, Australia. Pricing contact for quote.
Strengths
Consider
Perth, Australia
Best for: clients who prefer online-first service
MLEC Solar stands out for a mix of strong reviews (4.9/5 across 1249 reviews) and clear pricing. MLEC Solar is a verified solar installers provider in Perth, Australia. Pricing contact for quote.
Strengths
Consider
Perth, Australia
Best for: clients who prefer online-first service
With a 4.9/5 rating from 941 reviewers, PSW Energy, Perth Solar Warehouse is a reliable pick. PSW Energy, Perth Solar Warehouse is a verified solar installers provider in Perth, Australia. Pricing contact for quote.
Strengths
Consider
| Provider | Rating | Reviews | Price range | Best for |
|---|---|---|---|---|
| Koala Solar | 5/5 | 572 | Contact for quote | clients who prefer online-first service |
| MLEC Solar | 4.9/5 | 1249 | Contact for quote | clients who prefer online-first service |
| PSW Energy, Perth Solar Warehouse | 4.9/5 | 941 | Contact for quote | clients who prefer online-first service |
Pricing and availability data verified at time of publication. Ratings sourced from aggregated public reviews (Google, Productreview.com.au, TrueLocal).
We rank providers using a weighted scoring model: 40% aggregated reviews (Google, Productreview.com.au, industry-specific directories), 25% price transparency and value, 20% service coverage (availability, response time, specialisations), 10% credentials and verifications, and 5% customer complaint history. Rankings update quarterly or when new data warrants a change. Best Solar Installers does not accept payment to feature or rank providers; where referral fees apply, they are disclosed in our footer and do not affect position.
Our 2026 ranking puts Koala Solar first for Perth, based on a 5/5 rating across 572 public reviews and a contact for quote price range. "Best" depends on your specific needs — see our ranking criteria below for the full breakdown.
Services typically cost between $200 and $25,000 in Perth in 2026, depending on scope, provider seniority, and specialisation. Most providers offer free initial quotes — we recommend comparing at least 3 before committing.
Most solar installer in Perth respond to quote requests within 24 hours, and many within the same business day. Submitting your requirements once through a comparison service like Best Solar Installers returns up to 3 quotes in under a minute.
Standard 6.6kW residential system: $4,500-$8,000 installed (after federal STC rebate). 10kW system: $7,500-$13,000. 13kW: $9,500-$16,000. Premium tier-1 panels (LG, REC, SunPower) add $1,500-$3,000. Battery (10kWh): $9,000-$18,000 (less Federal Cheaper Home Battery rebate of $4,000-$7,000). Total system with battery typically $13,500-$22,000 fully installed. Always get 3 quotes — prices vary 30-50% between installers for the same system.
The Small-scale Technology Certificate (STC) scheme automatically discounts your solar system at point of sale. Value depends on system size and location zone (Australia divided into 4 zones based on solar resource). For a 6.6kW system: Zone 1 (Darwin, FNQ): ~$3,500. Zone 2 (Brisbane, Perth): ~$3,200. Zone 3 (Sydney, Adelaide): ~$2,800. Zone 4 (Melbourne, Hobart): ~$2,400. The rebate is built into the price installers quote — you never claim it separately. STC values change with carbon market prices and reduce each year (10% reduction in 2030).
Battery economics improved significantly in 2026 with the Federal Cheaper Home Batteries program ($4,000-$7,000 rebate per battery from 1 July 2025). Best for: high evening electricity use, flat or low feed-in tariffs ($0.04-$0.08/kWh in most states), planning long home occupancy (10+ years), EV ownership, virtual power plant participation (extra income). Payback time with rebate: 6-9 years on a $13,000 battery. Top brands 2026: Tesla Powerwall 3, BYD Battery Box, AlphaESS, Sungrow, Sigenergy.
Feed-in tariff is the rate your electricity retailer pays for excess solar energy you export to the grid. Rates have declined dramatically: 2010 $0.40-$0.60/kWh, 2020 $0.10-$0.15/kWh, 2026 typically $0.04-$0.08/kWh (some retailers offer higher with conditions). Rates vary by state and retailer — compare on Energy Made Easy (energymadeeasy.gov.au). Strategy: maximise self-consumption (use power when generating) rather than relying on export. Battery storage shifts excess to evening use instead of low-rate export.
Verify CEC accreditation at solaraccreditation.com.au — required by law for STC rebates. Higher tier: CEC Approved Solar Retailer (industry quality assurance). Look for: 5+ years in business, tier-1 panels (Jinko, Trina, REC, LG), tier-1 inverters (Sungrow, Fronius, SMA, Enphase), product warranties 12+ years, workmanship warranty 5+ years, written quote with components specified, no high-pressure sales. Get 3 quotes and compare apples-for-apples — same panel and inverter brands, same battery if applicable.
Compare CEC-accredited solar installers in your area. Federal + state rebate guidance included.
We'll match you with top providers in your area. Expect to hear back within 24 hours.