Battery Storage
24 guides from our installation teams.
Last updated
Battery StorageiStore battery explained: the 7kWh model for WA homes
If you've been quoted an iStore battery, or you already run one, there's a change worth knowing about. iStore is moving its home battery from the current 5kWh module to a new 7kWh model, and the two don't physically mix. This page explains what the iStore battery is, what the move to 7kWh entails, and where it sits compared to the batteries we fit in Perth homes.
PSW Editorial Team · 25 June 2026 · 7 min read
Battery StorageSigenergy Excellent Installer Award 2026: your local business is one of 10 worldwide
On Tuesday 2 June 2026, our founder Derek McKercher walked on stage at Sigenergy's global partner gala in Shanghai to accept the Sigenergy Excellent Installer Award 2026. The award was presented to PSW Energy, our sister brand, and it recognises the same Western Australian team that designs and installs SigenStor batteries in Perth homes every week. That is the part that matters if you own one of these systems, or you're thinking about one.
PSW Editorial Team · 11 June 2026 · 2 min read
Battery StorageTesla Powerwall winter performance: built for cold mornings
Here's something most battery brochures won't tell you: every home battery charges slower on a cold morning. Below about 10°C inside the cells, charging is limited. Below 0°C, it stops completely, because charging a freezing lithium battery damages it for good. That applies to every lithium battery on the market, whatever the brand. The difference is what the battery does about it, and the Tesla Powerwall 3 is one of the few that does anything at all.
PSW Editorial Team · 11 June 2026 · 3 min read
Battery StorageSungrow SBH is now our recommended battery for Sungrow systems
Sungrow has lowered the entry point on its SBH battery to 15kWh, and that one change settles a question we have been weighing for a while. From now on the SBH is the battery we fit on every new Sungrow inverter and battery install at Perth Solar Warehouse, and we are retiring the older SBR. If you already own a Sungrow hybrid inverter, this is the upgrade path we will point you to. Here is what changed, why it matters, and what it means if Sungrow is already on your wall.
PSW Editorial Team · 9 June 2026 · 5 min read
Battery StorageSolar and battery troubleshooting for Perth homes
Something's not right with your solar or battery, and you want to know if it's serious before you ring anyone. Most of the solar troubleshooting calls the PSW Tech Support team handles for Perth homeowners turn out not to require a technician. They land in one of four categories, and most of them have a quick self-check worth running first.
PSW Editorial Team · 15 May 2026 · 4 min read
Battery StorageSolar power in Northam and York, WA: a homeowner's guide
If you live in Northam, York or anywhere across the Wheatbelt, solar stacks up about as well as it does anywhere in the state. You sit in the same high-rebate zone as Perth, you're on the same main grid, and the Wheatbelt gives you long, bright, dry days that a north-facing roof turns into real bill relief. This guide covers what you need to know before you install solar or a battery at your home: the rebates that apply, what the grid pays you for exports, how much a typical system generates, and roughly when it pays for itself.
PSW Editorial Team · 14 May 2026 · 12 min read
Battery StoragePlico vs Synergy Battery Rewards: a WA installer's comparison
If you're installing a battery in Perth right now, you have to join a VPP. That's not optional. The WA Residential Battery Scheme requires VPP participation as a condition of the state rebate, and for most Synergy customers on the SWIS, that means choosing between Synergy's Battery Rewards and Plico's VPP.
PSW Editorial Team · 14 Apr 2026 · 13 min read
Battery StorageInterest-free solar & battery: WA's $10,000 loan changes the calculation
Deal Alert!...with a 36-month interest-free solar deal from $3.19 p/day saves up to $8 p/day in electricity. SHOP NOW >
PSW Editorial Team · 2 Apr 2026 · 5 min read
Battery StorageSolar power in Bunbury, WA: a homeowner's guide
Bunbury is WA's second-largest city, not a satellite of Perth, and that shapes how solar plays out here too. You're on the same grid and in the same rebate zone as Perth, but the coast does something the Wheatbelt and inland WA don't: it takes the edge off summer afternoons right when your panels are working hardest. This guide covers what's worth knowing before you put solar or a battery on a Bunbury home: the rebates that apply, what the grid pays for exports, how the coastal position changes generation and hardware choices, and roughly when a system pays for itself.
PSW Editorial Team · 25 Mar 2026 · 12 min read
Battery StorageWhat the cheapest battery quote actually costs
A home battery is one of the most significant purchases a household will make. The quote is the beginning of that conversation, not the end of it.
PSW Editorial Team · 23 Mar 2026 · 5 min read
Battery StorageTesla Powerwall 3 reviewed: what’s changed and why it matters
Updated 2026 review of Tesla Powerwall 3 for Perth homes. Specs, pricing, rebates, expansion packs, three-phase outlook, and what’s next for the Tesla energy ecosystem.
PSW Editorial Team · 11 Mar 2026 · 18 min read
Battery StorageiStore inverter and battery: Huawei intelligence, built for Perth
The world’s most installed residential solar inverter never actually left Australia. It just got a new name, a local warranty team, and a headquarters in Malaga, Western Australia.
PSW Editorial Team · 2 Mar 2026 · 11 min read
Battery StorageShould you buy an Alpha ESS solar battery?
If you’re looking at batteries for the first time, you’re probably feeling two things at once: (1) the appeal of using your own solar at night, and (2) the fear of dropping a lot of money on the wrong box because the specs read like another language.
PSW Editorial Team · 25 Feb 2026 · 14 min read
Battery StorageSolar, Batteries & AI: Derek McKercher on The Nexus Point podcast
Luke Cove (Lightning Energy) chats with Derek McKercher (Perth Solar Warehouse) on solar’s boom, batteries, AI in business, and what matters for homeowners.
PSW Editorial Team · 12 Feb 2026 · 3 min read
Battery StorageGuide: Sigenergy SigenStor, the reimagined home "energy hub"
Considering Sigenergy SigenStor? Australian 2026 guide on sizing, backup, EV DC charging, warranty. West Australian: tariffs & rebates.
PSW Editorial Team · 9 Jan 2026 · 7 min read
Battery StoragePersonal data privacy in a home solar or battery purchase?
Learn how modern solar systems manage cybersecurity and data privacy. Perth Solar Warehouse discusses the risks, safeguards, and how secure solar is achieved.
PSW Editorial Team · 26 Dec 2025 · 4 min read
Battery StorageGoodwe batteries for Perth homes: ESA, Lynx, and what to choose
Goodwe makes two mainstream residential battery systems for the Australian market: the ESA and the Lynx F G2. Both use lithium iron phosphate (LFP) chemistry, both are modular, and both qualify for federal and WA state battery rebates.
PSW Editorial Team · 17 Dec 2025 · 6 min read
Battery StorageCheaper Home Batteries Program Changes for WA Households
13 December 2025, the Australian Government announced important updates to the Cheaper Home Batteries Program commencing 1 May 2026
PSW Editorial Team · 14 Dec 2025 · 7 min read
Battery StorageThe Gilmore’s Live on Sunshine with Tesla Energy & Perth Solar Warehouse
Perth Solar Warehouse installs Tesla’s 19kW solar + Powerwall 3 + Wall connector for The Gilmore’s, Tesla Australia’s Live on Sunshine winners.
PSW Editorial Team · 26 Nov 2025 · 2 min read
Battery Storage2025 Tesla Premium Certified Installer: Perth Solar Warehouse
2025 Tesla Premium Certified Installer status for Perth Solar Warehouse represents a 4 year premium-rated relationship with Tesla Energy Australia
PSW Editorial Team · 24 Mar 2025 · 3 min read
Battery StorageWestern Australia's first Tesla Powerwall 3 arrives ushering in a new era
September 17, 2024, marked a significant day for self-generated sustainable energy as Perth Solar Warehouse received the first Tesla Powerwall 3.
PSW Editorial Team · 17 Sept 2024 · 6 min read
Battery StorageTesla Premium Certified Installer 2024
2022,23,24: Perth Solar Warehouse and PSW Energy are recognised as one of Australia's leading partners...Tesla Premium Certified Installer, WA...
PSW Editorial Team · 6 Feb 2024 · 4 min read
Battery StorageTesla Energy Performance Excellence Award, Q4, 2023
Perth Solar Warehouse received the Tesla Energy Performance Excellence Award (Australia) in Q4 2023. Explore Tesla-certified installer performance.
PSW Editorial Team · 5 Feb 2024 · 3 min read
Battery StorageSungrow batteries and inverters for Perth homes
Industry insight: Sungrow batteries and inverters for Perth WA homes. LFP storage from 6.4kWh to 160kWh. WA and Federal rebate eligiable
PSW Editorial Team · 27 Apr 2023 · 7 min read