Over the past two decades, solar photovoltaic (PV) systems have seen remarkable advancements, and battery technology has rapidly evolved over the last ten years to keep pace. As our world becomes increasingly electrified—driven by factors like electric vehicle (EV) adoption, more efficient heating and cooling solutions, rising natural gas prices, health risks associated with fossil fuels, and urgent climate goals—it’s clear that energy storage is more important than ever.
The Challenge of Cost
One of the primary barriers preventing homeowners from integrating batteries into their solar systems is the cost. Currently, battery storage averages around $1,000 per kilowatt-hour (kWh), with most households needing 10-13 kWh per day. This translates to a hefty investment of about $10,000, which can be out of reach for many.
Enter the “Battery-Ready” Solar System
A solution to this cost hurdle is the “Battery-Ready” solar system. Essentially, this involves a standard solar installation paired with a hybrid inverter—an inverter designed to interface directly with batteries. This setup prepares your home for future battery expansion when the time is right for you.
This approach is particularly beneficial for homeowners with a forward-thinking energy plan. If you’re considering an EV or want to bolster your home’s resilience against blackouts, going battery-ready makes sense. Many brands, including the Fronius Gen 24 line, are prioritizing “Battery Ready” systems, expanding your options while helping you stay within budget. Whether you’re looking for economical solutions or premium brands, the market offers a variety of choices.
Navigating the Options
The array of options can be overwhelming, especially with varying opinions in the solar community. That’s where we come in. We’ve dedicated countless hours to researching and curating a list of recommended brands, having met and spoken with local manufacturer representatives to ensure you’re getting the best advice.
Single-Phase Systems
If you’re like most Australian homeowners, you likely have single-phase power. Making your system battery-ready here is straightforward. You can either include a hybrid inverter during your solar installation or opt for an AC-coupled battery which we will touch on more on later, in part 2. Here are a couple of tips:
– If you have an extra $1,000, invest it in upgrading to a hybrid inverter now. This can save you between $3,000 and $5,000 in future costs.
– If you plan to add batteries within the next 2-3 years, upgrading makes even more sense.
Three-Phase Systems
When it comes to three-phase systems, things get a bit more complex, particularly regarding backup power. However, a hybrid inverter remains the most efficient option, taking up significantly less space while providing robust capabilities.
Improving Battery Payback
Historically, the financial benefits of adding a home battery were often eclipsed by expanding solar capacity or securing favorable electricity rates. However, rising electricity prices and decreasing feed-in tariffs have shifted the landscape. With many grids transitioning to time-of-use tariffs—where nighttime electricity costs significantly more than daytime—homeowners can achieve paybacks of under five years. Coupled with a ten-year battery warranty, these economics are becoming increasingly appealing.
As we approach 2025, the integration of battery-ready solar systems will undoubtedly become a game-changer in home energy management. If you’re ready to take the next step in your solar journey, we’re here to help you navigate your options and make informed decisions for a sustainable future.
