High-capacity battery storage for Australia’s electrified homes and businesses

The rise of the all-electric home is changing the equation for energy storage. As households replace fossil fuel appliances and add electric vehicles to the driveway, battery systems are being asked to do far more than simply store excess solar generation.

Electric vehicles, heat pump hot water systems, induction cooking, ducted air conditioning, and larger rooftop solar systems are becoming the new standard. For many Australian homes and small businesses, achieving true energy independence now requires more than a standard battery solution.

We developed the Fronius Reserva Pro to meet this growing demand. Designed for large residential properties, farms, and small to medium-sized businesses, this high-capacity battery storage solution delivers the flexibility, scalability, and performance required for today’s high-energy applications.

Available in Australia from October 2026, the Fronius Reserva Pro expands our storage portfolio into a new category, offering a powerful solution for those seeking greater solar self-consumption, reliable backup capability, and long-term energy resilience.

The average Australian household typically consumes between 15 and 20 kWh of electricity per day. However, a growing number of homes are operating far beyond these levels.

The modern all-electric home often includes:

• One or more electric vehicles (EVs)
• Heat pump hot water systems
• Reverse-cycle air conditioning
• Induction cooking
• Home offices
• Swimming pools
• Premium appliances
• Large rooftop solar systems

These households commonly consume between 35 and 70 kWh per day, with some large residences and acreage properties exceeding even this range. As electricity consumption increases, high-capacity battery storage becomes essential to maximize solar self-consumption and reduce reliance on the grid.

This shift is creating a new category of homeowners who need more power, particularly those with larger solar systems, multiple EVs, and a clear ambition to achieve greater energy independence.

We have found that energy consumption, rather than floor area, is the most accurate indicator of battery storage requirements.

Typical residential energy profiles

Profile	Daily Consumption*	Annual Consumption
Average household	15 to 20 kWh	5,500 to 7,000 kWh
Large family home	25 to 35 kWh	9,000 to 13,000 kWh
Premium all-electric home or Duplex (2 dwellings)	35 to 50 kWh	13,000 to 18,000 kWh
Large residence (pool & EVs)	50 to 80+ kWh	18,000 to 30,000+ kWh
Four Townhouses	60-100 kWh	21,900 to 36,500 kWh
Small Apartment Building (8-12 units)	120-250 kWh+	43,800 to 91,250+ kWh

*Estimated figures

For homeowners investing in EV charging, advanced home battery systems, and larger solar installations, conventional battery capacities can quickly become a limitation. The demand for larger systems is growing in lockstep with Australia’s transition toward electrified living. Choosing the right battery size can be challenging. In this article, we break down the essentials to help you make an informed decision.

Consider a modern family home equipped with heat pump hot water, ducted air conditioning, one electric vehicle, and a rooftop solar system. Daily electricity consumption can easily exceed 30 kWh. For premium homes with swimming pools and multiple EVs, this often means even higher energy usage.

These homes require a battery system capable of storing significantly more solar energy during the day to make it available when it is needed most. The Fronius Reserva Pro is specifically designed to address these growing storage requirements.

The Fronius Reserva Pro is a modular, high-voltage battery storage system developed for applications with higher energy demands. Using proven Lithium Iron Phosphate (LFP) battery technology, the system combines safety, longevity, and performance within a scalable architecture designed for long-term reliability.

Each battery tower provides:

• 12 kWh to 32 kWh usable storage capacity.
• 3 to 8 battery modules per tower.

For the most demanding projects, up to four towers can be connected in parallel, increasing the total storage capacity to 128 kWh.

This flexibility makes the Reserva Pro an ideal solution for:

• Large family homes and premium all-electric residences.
• Multi-EV households
• Apartment Buildings
• Rural and acreage properties, farms, and agricultural operations.
• Workshops, light industrial sites, and small to medium-sized businesses (SMEs).

European Quality, Designed for Long-Term Confidence

Another key advantage of the Fronius Reserva Pro is its European manufacturing and supply chain. The battery cells and modules are produced in Europe and are built to meet stringent quality, safety and performance standards. For Australian homeowners, developers and businesses, this provides confidence that the system is backed by a trusted energy technology company with decades of experience in power electronics and solar innovation.

At a time when quality, reliability and long-term support are becoming increasingly important purchasing considerations, the Reserva Pro offers the assurance of a product developed and manufactured within a European value chain. Combined with our proven service and support network, it provides a reliable foundation for energy storage projects designed to perform for years to come.

When paired with the Fronius Verto Plus, the Reserva Pro becomes a complete energy storage solution capable of supporting the largest residential and commercial applications.

Key benefits of this integrated ecosystem:

• High charging and discharging power: With performance of up to 28.3 kW, the system effortlessly supports larger household and business loads while maximizing solar utilization.
• Backup power and energy security: The combination enables backup power functionality and black-start capability, ensuring your energy remains available even during grid outages.
• Increased solar self-consumption: By storing surplus solar energy for later use, you can reduce electricity imports and significantly improve your energy independence.
• One integrated energy ecosystem: Battery storage, solar generation, monitoring, and energy management are all integrated within a single Fronius ecosystem, simplifying operation and long-term support.

The Fronius Reserva Pro is equally suited to the growing market for commercial battery storage. Many Australian SMEs are facing increasing energy costs and are seeking greater control over their electricity consumption.

Ideal business applications include:

• Warehouses and logistics facilities.
• Workshops and light manufacturing.
• Agricultural operations.
• Retail premises and commercial offices.

For businesses already investing in commercial solar, battery storage offers a strategic opportunity to increase self-consumption, reduce peak demand charges, and improve overall energy resilience. The Reserva Pro bridges the gap between traditional residential batteries and large-scale commercial systems.

If you are planning a new all-electric home, adding EV charging or upgrading an existing solar system, now is the ideal time to start planning for your future energy requirements. The same applies to businesses looking to strengthen their resilience and maximize the value of their solar investment.

Start planning your Fronius Reserva Pro system

As Australian homes and businesses continue to electrify, battery storage requirements will only grow. With scalable storage from 12 kWh to 128 kWh and seamless integration with the Fronius Verto Plus, the Fronius Reserva Pro is the compelling solution for the next generation of energy independence.

Prepare your property for the future. Contact a Fronius solution partner today to discuss a tailored Fronius Reserva Pro solution.*

*Available from October 2026. Fronius products are available exclusively through our network of authorised installers. For pricing, quotes, and a storage solution tailored to your home or business, please contact your local installer.