SOFAR battery installers in Perth, WA.

What a SOFAR system actually is

SOFAR is one of the faster-growing storage names in Australia, and it approaches the market from two directions at once. PowerAll is the all-in-one: hybrid inverter and modular battery in a single wall-mounted stack, scaling from about 4.75 kWh to 28.5 kWh as modules are added. The BTS range is the separate-components route, high-voltage modules designed to sit with a SOFAR hybrid inverter. Same brand, meaningfully different installs, and the choice between them should be driven by whether you already have an inverter worth keeping.

How SOFAR markets it: SOFAR markets breadth — a storage line that covers all-in-one simplicity and component flexibility without changing manufacturer.

• PowerAll — 4.75–28.5 kWh, in 4.75 kWh modules. All-in-one — hybrid inverter and battery in one stack, 1 to 6 modules.
• BTS E5–E20 — 5–20 kWh, in ~5.12 kWh modules. High-voltage battery modules paired with a separate SOFAR hybrid inverter.
• Expansion modules — Added within each range’s ceiling. Capacity grows by module, provided the original design left headroom.

A good fit in Perth if…

• New installs where an all-in-one stack removes a set of decisions
• Households starting small and intending to add modules as budget allows
• Buyers comparing on cost per usable kilowatt-hour rather than on brand history
• Homes wanting a single manufacturer across inverter and battery without paying premium-tier prices

Look at something else if…

• You want a long Australian field record above all else
• You are keeping an existing inverter — an AC-coupled system fits that better than either SOFAR shape
• You need capacity well beyond 28 kWh in a single system
• Your virtual-power-plant program does not list the specific model

Solar in Perth — the local picture

The Clean Energy Regulator records 633 small-scale systems installed in postcode 6000 — 7,018 kW of capacity as at 2026-06. Most SOFAR enquiries in Perth are retrofits onto one of those existing arrays rather than new builds, which is why the state of the switchboard and the age of the existing inverter drive the quote more than the battery model does. It bears on SOFAR specifically because of how it is sized (4.75–28.5 kwh across the residential range) — on a retrofit that decides whether the existing inverter stays, gets replaced, or ends up working alongside a second one.

Perth sits in the Perth council area and connects through Western Power, which caps single-phase export at 5 kW. A SOFAR install is approved as one system, so the export cap shapes what the inverter is allowed to push back — not what the battery is allowed to store for you.

Install counts and capacity: Clean Energy Regulator postcode data for small-scale installations (CC BY).

Summer and winter in Perth

Perth swings from about 7.4 peak sun hours in Jan to 2.4 in Jun — roughly 3.1× more generation in the best month than the worst. On a 10 kW array that is around 62.9 kWh a day in Jan against 20.4 kWh in Jun. Size a SOFAR on the winter figure: SOFAR is 4.75–28.5 kwh across the residential range, so the honest question at quote stage is what it can actually refill on a 20.4 kWh day, not what it holds on paper.

Monthly shape from Bureau of Meteorology climatology for Perth, scaled to Perth's annual average of 4.9 peak sun hours; 85% system derate.

The battery maths in Perth

• 41.7 kWh/day — what a 10 kW rooftop array averages in Perth across the year (BOM sun-hour data, 85% derate), against this brand's 4.75–28.5 kWh across the residential range of storage.
• 2–10c vs 30–35c — Western Australia feed-in tariffs typically pay 2–10c/kWh while grid power costs 30–35c. That gap — not the export credit — is what a battery captures.
• 4.75–28.5 kWh across the residential range — the usable range SOFAR offers in Australia. Sizing against your actual evening load matters more than buying the biggest number.

Comparing SOFAR quotes in Perth

We don't publish price bands, because installed prices move constantly and depend on your roof, switchboard and supply. What we can tell you is what to hold constant so three quotes are actually comparable — match these first, then compare after-rebate dollars per usable kWh.

1. PowerAll or BTS — the all-in-one and the component route produce different installs and different upgrade paths
2. Module count now versus the maximum the quoted stack accepts
3. On BTS, which SOFAR hybrid inverter is included and what becomes of your existing one
4. Whether backup is wired and which circuits it covers
5. Confirmation the exact model appears on the Clean Energy Council approved battery list

A cheaper quote that skips backup hardware, assumes an inverter you don't have, or quietly changes the configuration isn't cheaper — it's a different job.

Battery rebates in Western Australia

• Cheaper Home Batteries Program (federal) — roughly a 30% upfront discount on installed battery cost, paid at its full rate on the first tier of usable capacity and at a reduced rate above that. Applied at quote by the installer, not claimed back later.
• WA Residential Battery Scheme (WA) — WA adds the Residential Battery Scheme — $130 per usable kWh for Synergy customers (max $1,300) or $380 per kWh for Horizon Power customers (max $3,800), capped at 10 kWh and conditional on VPP enrolment. It stacks with the federal rebate. Full WA rebate breakdown

Why the installer matters more than the battery

The Clean Energy Regulator inspected 1,278 home battery installations under the Cheaper Home Batteries Program between July 2025 and April 2026 — more than 60% came back substandard and 1.2% unsafe. Installers are vetted before they join — typically 2+ years in business with a track record of decent reviews. Your Perth enquiry goes to 2-3 of them, and nobody else.

What specifically goes wrong on a SOFAR install

• The two ranges are easy to conflate in a quote — “SOFAR battery” could mean an all-in-one or a component build, and those are different jobs
• All-in-one systems take over the inverter role, so a retrofit on healthy solar means paying to replace working equipment unless that is explicitly intended
• Module headroom is fixed at design time; a stack specified at its ceiling cannot grow
• Approved-list checks must name the exact variant, not the family

Source: CER inspections, reported by UTS (Apr 2026)

SOFAR vs GoodWe

• Where SOFAR wins — A genuine all-in-one option in PowerAll, finer module-level sizing, and keener pricing per kilowatt-hour.
• Where SOFAR loses — A shorter Australian track record, a smaller experienced installer pool, and less established virtual-power-plant coverage.

We don't sell batteries, so we have no reason to talk one up.

What owning a SOFAR is actually like

Spec sheets stop being interesting about a week after install. These are the things owners notice in year one.

• The all-in-one PowerAll keeps day-two life simple: one stack on the wall, one app, one manufacturer answering for the lot.
• Both ranges grow by adding modules, so the useful question at quote time is the ceiling of the configuration rather than only the starting capacity.
• Monitoring runs through SOFAR’s own platform — competent, and not the reason to pick the brand either way.
• The Australian support presence has grown alongside the brand rather than preceding it, so installer familiarity is the variable worth probing.

Four questions to ask any SOFAR quote

1. Is this PowerAll or BTS, and why that one for my home?
2. How many modules now, and what is the maximum this configuration accepts?
3. What happens to my existing inverter under this design?
4. How many SOFAR systems have you installed, and who supports mine in year four?

Grid connection in Perth

• Western Power pre-approval — battery systems usually need explicit pre-approval before install. A good installer lodges the application and flags any constraint in the quote — not after.
• Export capped at 5 kW — single-phase residential export in Perth is capped at 5 kW on the Western Power network. A battery softens the cap — solar that can't export charges the SOFAR instead of being curtailed.
• 5–15 business days — typical connection-approval turnaround once the installer lodges with Western Power.

Areas served around Perth

Matching covers Greater Perth, not just the centre — enquiries route on your postcode. Local solar detail for each suburb:

• Perth (6001) · 0.2 km from Perth — 3 systems, 9 kW installed
• Northbridge (6003) · 1.2 km from Perth — 220 systems, 2,171 kW installed
• West Perth (6005) · 1.5 km from Perth — 257 systems, 4,553 kW installed
• East Perth (6004) · 1.7 km from Perth — 240 systems, 2,506 kW installed
• Highgate (6003) · 1.7 km from Perth — 220 systems, 2,171 kW installed
• Kings Park (6005) · 2.1 km from Perth — 257 systems, 4,553 kW installed
• Mount Lawley (6050) · 2.6 km from Perth — 2,312 systems, 14,506 kW installed
• North Perth (6006) · 2.9 km from Perth — 1,402 systems, 8,187 kW installed
• Leederville (6007) · 3.0 km from Perth — 1,017 systems, 7,178 kW installed
• South Perth Angelo St (6151) · 3.1 km from Perth — 2,175 systems, 13,495 kW installed
• Subiaco (6008) · 3.1 km from Perth — 2,061 systems, 13,466 kW installed
• Subiaco East (6008) · 3.1 km from Perth — 2,061 systems, 13,466 kW installed
• West Leederville (6007) · 3.1 km from Perth — 1,017 systems, 7,178 kW installed
• South Perth (6151) · 3.2 km from Perth — 2,175 systems, 13,495 kW installed
• Menora (6050) · 3.3 km from Perth — 2,312 systems, 14,506 kW installed
• Burswood (6100) · 3.6 km from Perth — 1,940 systems, 12,267 kW installed
• Kensington (6151) · 4.0 km from Perth — 2,175 systems, 13,495 kW installed
• Maylands (6051) · 4.2 km from Perth — 1,371 systems, 7,498 kW installed
• Coolbinia (6050) · 4.3 km from Perth — 2,312 systems, 14,506 kW installed
• Victoria Park (6100) · 4.3 km from Perth — 1,940 systems, 12,267 kW installed
• Mount Hawthorn (6016) · 4.4 km from Perth — 1,490 systems, 8,650 kW installed
• Wembley (6014) · 4.4 km from Perth — 3,405 systems, 21,788 kW installed
• Inglewood (6052) · 4.6 km from Perth — 1,912 systems, 10,897 kW installed
• Bedford (6052) · 4.7 km from Perth — 1,912 systems, 10,897 kW installed
• Jolimont (6014) · 4.7 km from Perth — 3,405 systems, 21,788 kW installed
• Daglish (6008) · 4.8 km from Perth — 2,061 systems, 13,466 kW installed
• Lathlain (6100) · 4.8 km from Perth — 1,940 systems, 12,267 kW installed
• Yokine South (6060) · 4.8 km from Perth — 3,017 systems, 16,685 kW installed
• Joondanna (6060) · 4.9 km from Perth — 3,017 systems, 16,685 kW installed
• Dog Swamp (6060) · 5.0 km from Perth — 3,017 systems, 16,685 kW installed
• Shenton Park (6008) · 5.3 km from Perth — 2,061 systems, 13,466 kW installed
• Como (6152) · 5.4 km from Perth — 4,249 systems, 23,784 kW installed
• Claremont North (6010) · 8.6 km from Perth — 3,007 systems, 18,197 kW installed
• Mirrabooka (6061) · 9.6 km from Perth — 5,085 systems, 24,556 kW installed
• Brentwood (6153) · 10.1 km from Perth — 4,068 systems, 25,547 kW installed
• Balga (6061) · 10.8 km from Perth — 5,085 systems, 24,556 kW installed
• Beechboro (6063) · 11.9 km from Perth — 3,781 systems, 19,521 kW installed
• Hamersley (6022) · 12.1 km from Perth — 1,322 systems, 6,204 kW installed
• Karrinyup (6018) · 12.2 km from Perth — 7,437 systems, 40,423 kW installed
• Koondoola (6064) · 12.4 km from Perth — 6,093 systems, 28,997 kW installed

Nearby SOFAR locations

Comparing across towns? These are the closest SOFAR pages to Perth.

• SOFAR battery installers Mandurah — 67 km
• SOFAR battery installers Pinjarra — 75 km
• SOFAR battery installers Northam — 84 km
• SOFAR battery installers Harvey — 126 km
• SOFAR battery installers Australind — 148 km
• SOFAR battery installers Bunbury — 154 km

Read before you commit

• How to choose a solar installer
• How to read a solar quote line by line
• Cheaper Home Batteries — the full program guide
• What size system do you actually need?
• The SOFAR brand page — how we match you

SOFAR questions, Perth answers

What is the difference between PowerAll and BTS?

PowerAll puts the hybrid inverter and the battery modules in one wall-mounted stack, so the system is a single product with a single manufacturer behind it. BTS is the battery half only, designed to pair with a separate SOFAR hybrid inverter. For a new install PowerAll is usually the simpler answer; BTS makes sense where the electrical design or the property calls for the inverter to be a separate unit. Either way, the quote should name which one it is.

Can I start small and add capacity later?

That is one of the range’s genuine strengths — both shapes build from modules, so a smaller system now can grow. The condition is headroom: the inverter rating and the stack design set a ceiling at install time, and reaching that ceiling means new hardware rather than another module. If you expect an EV or a bigger load in a few years, raise it before the design is signed off.

Is SOFAR eligible for the federal battery rebate?

SOFAR models do appear on the Clean Energy Council approved battery list, with eligibility assessed model-by-model. Because the brand sells two quite different ranges with several variants, ask the installer to point at the exact quoted model on the current list rather than accepting that the brand is approved in general.

How does SOFAR compare with the better-known brands?

On hardware terms it is competitive — the same lithium iron phosphate chemistry as most of the market, modular sizing and a full-featured all-in-one. What the established names have is time: more Australian installs, more installers who have serviced them, more accumulated field data. If price per usable kilowatt-hour is your priority, SOFAR argues well; if a long local record is, it does not yet.

Does a SOFAR system provide blackout backup?

Backup-capable configurations hold up the circuits wired to the backup side, and how long they last is a function of the capacity you installed and the load you put on it. As with every brand, the scope is a design decision rather than a product feature — which circuits, whether changeover is automatic, and what happens as the modules drain. Have it written into the quote.

Who supports a SOFAR system in Australia?

The brand has an Australian distribution and support presence that grew as its volumes did, and the front line in practice is your installer. Because the local installer base is younger than for the long-established brands, the who-fits-it question carries more weight here: an installer with several SOFAR commissionings behind them and a habit of supporting their own work closes most of the gap.

Who installs SOFAR batteries in Perth?

Solar Select matches your enquiry with 2-3 vetted installers serving Greater Perth — vetted on workmanship warranty, trading history and brand experience, with SOFAR accreditation where available. You get 2-3 of them and nobody else does. Free for homeowners.

How do I compare SOFAR quotes in Perth?

Installed prices move constantly and vary by site, so compare on after-rebate dollars per usable kWh rather than headline totals — and only once the scope matches. For this brand the variables that matter are: powerAll or BTS — the all-in-one and the component route produce different installs and different upgrade paths; module count now versus the maximum the quoted stack accepts; on BTS, which SOFAR hybrid inverter is included and what becomes of your existing one. Get all three quotes on the same scope, then compare the installers harder than the numbers.

What battery rebates apply in Perth?

The federal Cheaper Home Batteries Program applies nationwide — roughly a 30% upfront discount on installed cost, paid at its full rate on the first tier of usable capacity and tapering above that. Because SOFAR is 4.75–28.5 kwh across the residential range, how much you collect depends on how the configuration lines up with those tiers, so ask the installer to show the tier split rather than one flat "government incentive" line. WA then adds WA Residential Battery Scheme on top.

What does Western Power need to approve for a SOFAR in Perth?

The connection application covers the whole system, so what gets scrutinised depends on the configuration: the two ranges are easy to conflate in a quote — “SOFAR battery” could mean an all-in-one or a component build, and those are different jobs. Export in Perth is capped at 5 kW single-phase, and approval usually runs 5–15 business days once lodged.

Are your Perth installers SOFAR-accredited?

Accreditation is one of the things we check, and where a SOFAR-accredited installer covers Greater Perth you'll see that in the match. It is deliberately not the only filter — a current accreditation badge says the installer has done the brand's training, not that they wire a good switchboard or come back in year three. Every installer we match you with is checked on workmanship warranty, trading history and real installs of this system, and you can ask any of the 2-3 you're matched with to show their accreditation and their last SOFAR job in Perth before you sign.

Is a SOFAR battery worth it in Perth?

Perth averages 4.9 peak sun hours, so a 10 kW rooftop array generates roughly 41.7 kWh on an average day — enough to cycle a battery in this brand's 4.75–28.5 kWh across the residential range range. With Western Australia feed-in tariffs typically paying 2–10c/kWh while grid power costs 30–35c, every stored kWh you use yourself is worth several times what exporting it earns.

How many homes around Perth already have solar?

The Clean Energy Regulator counts 633 small-scale systems in postcode 6000, totalling 7,018 kW as at 2026-06. That is a smaller base of 633 systems, so ask specifically how many SOFAR units the installer has commissioned nearby. It matters for a battery quote because retrofit work — switchboard condition, existing inverter age, whether the array pairs cleanly with SOFAR — is where the price and the risk actually sit.