Fronius is one of the most respected names in solar inverter technology, and Positive Energy Solutions is a Fronius Solutions Partner Plus in Perth. It is Austrian-engineered, with a track record in industrial power electronics stretching back decades. Their inverters sit at the premium end of the market. Their hybrid inverter range is built from the ground up for solar and battery integration.
This post explains what Solutions Partner Plus status means and what the Fronius product range delivers. It also explains why the partner installing your system matters as much as the hardware itself.
1. Fronius in Perth: Engineering Credentials That Go Deep
Fronius is an Austrian company founded in 1945, originally in welding systems. They entered the solar inverter market in the 1990s. They have spent more than thirty years refining inverter technology since. This is not a side business for them. It is a core engineering focus.
That background shows up in the product. Fronius inverters are known for build quality, software sophistication, and longevity. The GEN24 PLUS is their current hybrid inverter range. It reflects decades of power electronics engineering, rather than a fast-follow into a growth market.
Fronius is one of the only solar inverter manufacturers with a physical office in Perth. It is based in Subiaco. That local presence means genuine local support. This includes technical assistance, warranty support, and product knowledge from a team that is actually in WA, not interstate or offshore. The Solutions Partner Plus program is how Fronius makes sure the companies installing their products have the technical capability to do them justice.
2. What the Fronius Solutions Partner Plus Program Involves
The Fronius Solutions Partner Plus program sits above standard installer accreditation. It requires demonstrated technical competency across the Fronius product range. It also requires completed training through Fronius’s own program, and a track record of quality installations that Fronius can stand behind.
Direct manufacturer training
Positive Energy Solutions staff have completed Fronius’s technical training program. This covers system design, inverter commissioning, battery integration, and the Fronius Solar.web monitoring platform. Fronius delivers this training directly, not through a third-party provider. This means the knowledge is current, and comes with direct access to Fronius’s technical resources.
Direct technical access and early product access
As a Solutions Partner Plus, Positive Energy Solutions has direct access to Fronius’s technical team in Australia. When an installation scenario needs manufacturer input, or a system needs post-installation support, we do not work through a general support queue. We have a direct relationship with the people who know the product.
Solutions Partner Plus status also gives Positive Energy Solutions early access to new Fronius products. We see them before they reach the general installer market. When Fronius launches a new inverter model or an updated battery, we see it first. This means our customers can get access to the latest hardware ahead of the broader market. Our team also has time to train on it before it goes live.
In-house engineering review
Every Fronius system Positive Energy Solutions designs goes through our in-house engineering team before installation. System sizing, inverter selection, battery compatibility, cable design, and Western Power network compliance are all reviewed before the job reaches our dedicated installer partners. On installation day, those installers carry out a final site-specific design review. They make the definitive design decisions based on what they find on site.
3. The Fronius GEN24 PLUS: Built for Battery from Day One
The Fronius GEN24 PLUS is a hybrid inverter. This means it is designed to manage both solar generation and battery storage in a single unit. This is not a standard inverter with battery capability added later. The GEN24 PLUS was engineered from the ground up as a hybrid system. This shows in how it handles DC coupling and energy flow management.
DC coupling
In a DC-coupled system, solar panels connect on the DC side of the inverter, before energy is converted to AC. This means the battery can be charged directly from the panels without an extra conversion step. This is the more efficient arrangement. The GEN24 PLUS handles DC coupling natively, so energy losses in the charging path stay low.
Emergency power supply
The GEN24 PLUS supports emergency power supply capability. This needs a separate Fronius Backup Box rather than being built into the inverter itself. The Backup Box lets selected essential circuits keep operating from the battery during a grid outage. Note that backup covers essential circuits only, not whole-home power, so the design of your backup configuration matters.
Positive Energy Solutions’ energy consultants work through whether backup power is right for your home. They also confirm which inverter size supports the backup configuration you need, as part of the system design. Backup requirements vary a lot between homes. Getting the sizing right upfront avoids complications later.
Fronius Solar.web monitoring
The GEN24 PLUS connects to the Fronius Solar.web platform. This gives detailed monitoring of solar generation, battery state, home consumption, and grid import/export in real time. Solar.web gives homeowners and installers a detailed view of system performance, supporting both day-to-day usage decisions and long-term performance tracking.
Available sizes
The GEN24 PLUS comes in a range of sizes suited to Perth residential installations. The 5kW model keeps homes eligible for Synergy’s DEBS export tariff. This tariff applies to inverters 5kW and under and provides a credit for excess energy exported to the grid. Larger models are available for homes with higher loads, where battery self-consumption makes the DEBS export credit less critical.
4. Battery Options: Fronius Reserva and BYD Battery-Box
The GEN24 PLUS works with two battery options that Positive Energy Solutions installs: the Fronius Reserva and the BYD Battery-Box Premium HVM. Both connect in a DC-coupled configuration with the GEN24 PLUS. The right choice depends on the home’s capacity requirements and priorities.
Fronius Reserva
The Fronius Reserva is the native battery for the GEN24 PLUS ecosystem. It is designed and engineered by Fronius specifically to integrate with their inverter. The Reserva is a lithium iron phosphate (LFP) battery, which offers a long cycle life, stable chemistry, and a good safety profile. As a native Fronius product, the Reserva integrates deeply with the GEN24 PLUS and Solar.web platform. Firmware updates and system optimisation are handled as a coordinated package.
BYD Battery-Box Premium HVM
The BYD Battery-Box Premium HVM is also fully compatible with the Fronius GEN24 PLUS in a DC-coupled configuration. BYD is one of the world’s largest battery manufacturers. The HVM series is their high-voltage modular battery, designed for residential solar systems. The HVM is stackable, so capacity can be configured across a wide range. This runs from a starter system through to a very large storage configuration for homes with high energy demands.
Some homeowners need more capacity than the Reserva configuration offers. Others prefer BYD’s established track record as a battery manufacturer. For both, the BYD HVM paired with the GEN24 PLUS is a proven combination. Positive Energy Solutions installs and commissions both options. We can advise on the right choice based on your home’s energy profile.
5. DEBS and Inverter Sizing: Getting It Right
One of the most important sizing decisions in a Fronius system for Perth homeowners is the inverter capacity. This is because it directly affects DEBS eligibility.
Synergy’s DEBS export tariff, currently 10 cents per kWh during peak hours and 2 cents per kWh off-peak, applies only to inverters 5kW and under. A home with a 5kW GEN24 PLUS keeps DEBS eligibility. It also earns a credit for excess solar exported to the grid. A home with a larger inverter does not qualify for DEBS.
Whether to stay at 5kW or go larger depends on the home’s load profile. For most Perth homes with a battery, the 5kW GEN24 PLUS is the right call. The battery absorbs excess solar rather than exporting it. DEBS credits add value for the solar that does reach the grid. For homes with high daytime loads, a larger inverter may generate enough extra solar to justify losing the DEBS credit. Positive Energy Solutions’ engineering team works through this calculation as part of every system design.
6. Positive Energy Solutions’ Experience with Fronius Systems
Positive Energy Solutions has designed and installed Fronius GEN24 PLUS systems across Perth homes. These systems are paired with both the Fronius Reserva and BYD Battery-Box HVM, depending on each home’s needs. That hands-on experience across multiple configurations means we know what a well-designed and correctly commissioned Fronius system looks like. We know the details that make a difference in real-world performance.
Every installer partner Positive Energy Solutions works with on Fronius systems has completed Fronius’s technical training. They know the GEN24 PLUS commissioning process well. On installation day, they review the site conditions and make the final design decisions. The pre-install engineering review sets the framework. The installers on site make sure the outcome fits the actual property.
7. Omnidian Monitoring on Every Fronius System
Every solar and battery system Positive Energy Solutions installs, including every Fronius GEN24 PLUS system, is independently monitored through Omnidian.
Omnidian runs alongside Fronius Solar.web, tracking real-time system performance against expected output. This is based on your panel array, battery, inverter, roof orientation, and local weather conditions. It is independent of Fronius, meaning the manufacturer of the system being monitored does not manage the monitoring.
If your system’s generation or battery performance deviates from expected behaviour, Omnidian flags it early. For a Fronius system with its detailed data output, Omnidian adds an independent layer of accountability on top of the manufacturer’s own monitoring. Any issue gets identified and addressed before you notice it in your electricity bill.
8. Ready to Talk About a Fronius System?
Positive Energy Solutions is a Fronius Solutions Partner Plus in Perth. Every Fronius system we design is reviewed by our in-house engineering team. It is installed by dedicated installer partners who make the final site decisions on the day. And it is monitored independently through Omnidian from day one.
You might be comparing inverter options, weighing up Fronius Reserva versus BYD Battery-Box, or working out whether the 5kW or larger GEN24 PLUS is right for your home. Get in touch with one of our consultants to confirm the best solution for your situation.
Related guides
- Why Positive Energy Solutions Is a SunPower Elite Partner in Perth
- Why Positive Energy Solutions Is One of Only Two iStore Elite Partners in Perth — and the First
- Positive Energy Solutions Wins Two 2026 SunWiz Awards — #1 Local Solar Hero Perth Inner and #3 Battery Installer in WA
- Premium Brands, Trusted Partners: Why PES Only Installs the Best Solar and Battery Equipment in Perth
Frequently Asked Questions
What is the difference between the Fronius Reserva and BYD Battery-Box with a GEN24 PLUS?
Both are DC-coupled to the GEN24 PLUS and work well in a Fronius system. The Reserva is Fronius’s own battery, tightly integrated with the inverter and Solar.web platform. The BYD HVM is a high-voltage modular battery from one of the world’s largest battery manufacturers. It offers a wider range of capacity configurations. Positive Energy Solutions can advise on which suits your home’s energy profile and storage requirements.
Can a Fronius GEN24 PLUS keep my power on during a blackout?
Yes, with the addition of a Fronius Backup Box. This is a separate unit that supplies emergency power from the battery to essential circuits during a grid outage. Backup covers selected essential circuits, not the whole home. The right inverter size and backup configuration depend on which circuits you need covered and what loads you are running. Speak to a Positive Energy Solutions energy consultant to work out the right setup for your home.
Can I keep my DEBS export tariff with a Fronius system?
Yes, if you choose the 5kW GEN24 PLUS. Synergy’s DEBS tariff applies to inverters 5kW and under. The 5kW model covers the vast majority of Perth residential installations. If your home has unusually high daytime loads, Positive Energy Solutions’ engineering team will work through whether a larger inverter makes sense for your situation.
How does Fronius Solar.web work alongside Omnidian?
Fronius Solar.web is the manufacturer’s own monitoring platform. It gives you and Positive Energy Solutions visibility into the Fronius system’s detailed data. Omnidian runs independently alongside it, tracking overall system performance against expected output. The two platforms complement each other: Solar.web for Fronius-specific data, Omnidian for independent performance accountability across the whole system.
What makes Positive Energy Solutions different from other Fronius installers in Perth?
Positive Energy Solutions holds Fronius Solutions Partner Plus status. This is above standard installer accreditation. Every system goes through our in-house engineering review before installation. Our dedicated installer partners make the final design decisions on site. Omnidian monitoring is included on every system from day one — not as an add-on.
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.
