PES Is a Tesla Certified Installer in Perth: What That Means for Your Powerwall 3

Tesla’s Powerwall 3 is the most recognised home battery in Australia. It is also one of the most controlled. Tesla manages its own installer network, and decides who is permitted to supply and install Powerwall systems. Not every solar company in Perth can install a Tesla Powerwall 3. Positive Energy Solutions is a Tesla Certified Installer. This means Tesla has vetted, trained, and approved us to supply and install the Powerwall 3 in Perth.

This post explains what Tesla Certified Installer status involves, and what the Powerwall 3 offers. It also covers how the Tesla Universal Wall Connector EV charger integrates with it, and what all of this means for Perth homeowners choosing Positive Energy Solutions.

1. What Tesla Certified Installer Status Involves

Tesla does not allow any SAA-accredited installer to supply and install Powerwall systems. The Certified Installer programme is a controlled network. Tesla sets the criteria, runs the training, and manages the approvals. To become and stay a Tesla Certified Installer, Positive Energy Solutions must meet the following requirements.

• Manufacturer-led training: Positive Energy Solutions’ installation team has completed Tesla’s product-specific training programme. This covers Powerwall 3 electrical installation, system commissioning, backup configuration, and the Tesla app setup and handover process. Tesla updates this training as the product evolves. We must keep it current to keep our certification.
• Quality and compliance standards: Tesla sets specific requirements for how Powerwall systems are installed, commissioned, and handed over to customers. Positive Energy Solutions’ installations must meet these standards consistently. Tesla monitors installer performance, and can withdraw certification.
• Direct access to Tesla’s installer support channel: Certified Installers have access to a dedicated Tesla technical support line, not available to the general public. When a technical question arises during installation or commissioning, Positive Energy Solutions deals directly with Tesla’s installer support team.
• Warranty and service accountability: for warranty matters on the Powerwall 3, the customer contacts Positive Energy Solutions. We work directly with Tesla through the certified installer channel to lodge and progress the claim. The accountability path is short and direct.

The controlled nature of Tesla’s installer network is a deliberate product and brand decision. Tesla wants the Powerwall 3 experience to stay consistent across every installation. That includes installation quality, commissioning, app setup, and ongoing support. The Certified Installer programme is how they enforce that.

2. The Tesla Powerwall 3: What It Offers

The Powerwall 3 is Tesla’s third-generation home battery. It is a significant departure from the Powerwall 2. The Powerwall 2 was a pure battery storage unit that needed a separate solar inverter. The Powerwall 3 has a built-in solar inverter instead. That makes it an all-in-one solar and battery system in a single unit.

Key specifications

• Usable capacity: 13.5 kWh per unit. Multiple Powerwall 3 units can be stacked for larger storage requirements.
• Continuous power output: 11.04 kW continuous, with up to 185 A peak output for whole-home backup on the single-phase 10kW setting. This is enough to run high-draw appliances, including air conditioning, pool pumps, and EV chargers, at the same time during a grid outage. On the 5kW setting or three-phase, backup covers essential circuits only.
• Built-in solar inverter: Up to 20 kW of solar input capacity across 6 MPPT inputs. The Powerwall 3 replaces the need for a separate hybrid inverter in most residential installations.
• Chemistry: Lithium iron phosphate (LFP). LFP chemistry does not use cobalt. It has a lower thermal runaway risk than NMC chemistries, and delivers stable cycle performance over the battery’s life.
• Backup capability: The Powerwall 3 provides whole-home backup on the single-phase 10kW setting during a grid outage (essential circuits only on 5kW or three-phase). It is designed to seamlessly switch the home to battery power when the grid goes down, with no manual switching required.
• Warranty: 10-year warranty with a 70% capacity retention guarantee at the end of the warranty period.
• Monitoring: The Tesla app provides real-time monitoring of solar generation, battery state of charge, grid import/export, and home consumption. Historical data and time-of-use optimisation settings are managed through the app.

3. The Tesla Universal Wall Connector: Solar-Optimised EV Charging

Tesla’s Universal Wall Connector is a home EV charger that works with all EV brands, not just Tesla vehicles. When installed alongside a Powerwall 3, it integrates with the Tesla energy management system to enable solar-optimised and time-of-use-aware EV charging.

• Solar-first charging: with the Powerwall 3 and Universal Wall Connector working together, the system can prioritise surplus solar generation for EV charging before drawing from the battery or the grid. For households with daytime generation and an EV charging overnight, this setup makes the most of solar energy across the home.
• All-EV compatibility: the Universal Wall Connector uses the J1772 standard, and includes a CCS2 adapter for DC fast charging compatibility. This makes it usable with virtually all EVs sold in Australia, not just Tesla vehicles.
• Charge scheduling: the Tesla app lets you set charging schedules in line with Synergy’s Midday Saver tariff or time-of-use rates, automating the charging window to match low-rate periods or peak solar generation.

Positive Energy Solutions is accredited to install the full Tesla ecosystem, Powerwall 3, solar, and Universal Wall Connector, as a single integrated project. For households with an EV or planning to add one, this is the clearest path to a fully solar-powered home and vehicle.

4. Why Positive Energy Solutions Chose to Partner with Tesla

Tesla’s Powerwall is not the only premium battery available in Perth. Positive Energy Solutions offers several alternatives, including SigenStor, Sungrow SBH, and Fronius Reserva. We chose to pursue Tesla Certified Installer status for specific reasons.

• Brand recognition and buyer confidence: many Perth homeowners arrive at the quoting process with Tesla already on their list. Being a Certified Installer means Positive Energy Solutions can supply and install the product buyers want. It comes with the full weight of Tesla’s training and warranty infrastructure behind it.
• Whole-home backup performance: on the single-phase 10kW setting, the Powerwall 3’s 11.04 kW continuous output and 185 A peak rating make it a strong whole-home backup option in Positive Energy Solutions’ battery range. For households where blackout resilience is a priority, it is often the right recommendation.
• Integrated inverter: the Powerwall 3’s built-in inverter simplifies system design for some installation configurations: fewer components, a cleaner installation, and a single manufacturer warranty covering the whole unit.
• EV charging integration: Tesla’s Universal Wall Connector and Powerwall 3 work together through the same app and energy management system. For EV households, this is a genuinely integrated solution, rather than two separate products bolted together.

5. What This Means for Positive Energy Solutions Customers

Choosing Positive Energy Solutions for a Tesla Powerwall 3 installation means dealing with a team that Tesla has vetted and trained. You get direct access to Tesla’s installer support channel and a clear warranty path if anything needs attention.

• Installation to Tesla’s standards: Positive Energy Solutions’ Powerwall 3 installations meet the specifications and quality requirements Tesla sets, not a generic solar installation process adapted to fit a Powerwall.
• App setup and system handover: Positive Energy Solutions handles the full commissioning process, including Tesla app setup, backup configuration, and a handover walkthrough. You leave the installation day knowing how the system works and how to use it.
• Omnidian monitoring: every Positive Energy Solutions system, including Powerwall 3 installations, is enrolled in Omnidian’s performance assurance programme. Omnidian monitors your system all the time, and contacts you directly if it detects a performance issue.
• 10-year Positive Energy Solutions workmanship warranty: we back the installation itself with a 10-year workmanship warranty, separate from and on top of Tesla’s 10-year product warranty.
• Ongoing local support: Positive Energy Solutions operates from a Perth showroom with a local team. If you have a question about your Powerwall 3 after installation, whether about reading the app, adjusting backup settings, or optimising for the Midday Saver tariff, the same team who installed it is available to help.

6. Is the Tesla Powerwall 3 Right for You?

The Powerwall 3 is an excellent choice for Perth homeowners on a single-phase supply. It suits anyone who prioritises whole-home backup capability, plans to add an EV now or later, or wants the simplicity of a single-brand energy system with a single app. It is one of the most capable home batteries available in Perth in 2026.

It is not the only option Positive Energy Solutions offers. For households with high storage requirements, a modular system like the Sungrow SBH or SigenStor may offer better value at larger capacities. For three-phase properties with specific inverter requirements, the Fronius GEN24 PLUS and Reserva combination may be a better fit. Our design process matches the right system to each home. If the Powerwall 3 is the right fit, we are one of the few Perth installers authorised to supply and install it.

Request Your Quote for a Tesla Powerwall 3 in Perth

Positive Energy Solutions provides no-obligation quotes for Perth homeowners. If you are considering a Tesla Powerwall 3 — with or without an EV charger — get in touch or visit our showroom to speak with the team directly. Your quote will include a system design specific to your property, applicable government rebates already deducted, and a clear breakdown of what is included.

Related guides

• Award-Winning Solar Installer in Perth: How Positive Energy Earned Its Reputation
• EUPD Research Top PV Installer Award Perth: Why Positive Energy Solutions Was Recognised
• How to Choose a Solar Installer in Perth: What to Look For (and What to Watch Out For)
• Sungrow vs Tesla Powerwall 3 vs SigEnergy SigenStor: Which Battery Is Right for Your Perth Home in 2026?

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Frequently Asked Questions

Can any solar installer in Perth install a Tesla Powerwall 3?

No. Tesla manages a controlled Certified Installer network. Only approved installers can supply and install the Powerwall 3. Positive Energy Solutions is a Tesla Certified Installer in Perth. Tesla has vetted, trained, and approved us. If a company is not listed as a Tesla Certified Installer, it cannot legally supply or install a Powerwall 3 in Australia.

What is the capacity of the Tesla Powerwall 3?

The Powerwall 3 has 13.5 kWh of usable capacity. You can stack multiple units for larger storage requirements. It also includes a built-in solar inverter that handles up to 20 kW of solar input across 6 MPPT inputs, replacing the need for a separate hybrid inverter in most installations.

Does the Tesla Powerwall 3 provide whole-home backup?

Yes, on the single-phase 10kW setting. The Powerwall 3 is designed for whole-home backup, with 11.04 kW continuous output and up to 185 A peak current. That is enough to run air conditioning, a pool pump, and other high-draw appliances at the same time during a grid outage. On the 5kW setting or three-phase, backup covers essential circuits only. The transition to battery backup is automatic and seamless.

Does the Tesla Universal Wall Connector work with non-Tesla EVs?

Yes. The Tesla Universal Wall Connector uses the J1772 standard and is compatible with all EVs sold in Australia, not just Tesla vehicles. When installed alongside a Powerwall 3, it integrates with the Tesla energy management system for solar-optimised and scheduled charging.

What warranty does the Tesla Powerwall 3 come with?

Tesla provides a 10-year product warranty with a 70% capacity retention guarantee. Positive Energy Solutions additionally backs every installation with a 10-year workmanship warranty covering the electrical installation itself.

Does Positive Energy Solutions only install Tesla batteries?

No. Positive Energy Solutions offers a range of battery options including SigenStor (SigEnergy), Sungrow SBH, and Fronius Reserva in addition to the Tesla Powerwall 3. We recommend the most appropriate battery based on your home’s energy profile, phase connection, storage requirements, and budget. The Powerwall 3 is one of several strong options in our range.

About the Author

Jason Wiktorowicz
Sales Manager, Positive Energy Solutions | Perth, WA

Jason has been at the centre of Western Australia’s energy transition for over a decade. As Orchestration Lead on Project Symphony — WA’s largest virtual power plant pilot — and Stream Lead on Project Encore, he worked directly with AEMO, Western Power and Energy Policy WA to shape how distributed energy resources connect and operate on the SWIS. That work included developing and rolling out CSIP-AUS, now mandatory for all new WA grid connections. He also led Emergency Solar Management (ESM), the first program of its kind in WA, VPP for Schools (VPP4S), which provided direct market benefits through Supplementary Reserve Capacity, and REBAR, the WA Residential Battery Rebate scheme.

His earlier career spanned Synergy, Infinite Energy and Curtin University’s Sustainability Policy Institute, where he co-authored peer-reviewed research on net-zero urban precincts, solar integration and peer-to-peer energy trading, published in the journal Urban Planning in 2018.

At Positive Energy Solutions, Jason leads sales with a focus on system design accuracy and long-term performance. Positive Energy Solutions installs solar and battery systems, EV chargers and heat pumps, and holds partner accreditations with Fronius, SigEnergy, iStore and SunPower. Connect with him on LinkedIn.