If you’ve already invested in solar, chances are you’re generating more energy than you consume, especially during the sunniest parts of the day. But what happens to all that unused energy?

Traditionally, any surplus is exported back to the grid, often for just a fraction of what you’ll pay to buy electricity back in the evening. That’s why so many Australian households and businesses are now exploring smarter ways to use more of their own solar power.

Two of the most popular options?

🔋 Battery storage and 🔄 Catch Power diverters.

Let’s break down both solutions to help you decide which one makes the most sense for your home, business, and budget.

Option 1: Battery Storage

How it works:
A solar battery stores excess electricity generated during the day so it can be used in the evening, overnight, or during blackouts. Some systems also let you charge from the grid at off-peak times for use during peak tariff periods.

✅ Key benefits:

• Energy independence: Rely less on the grid and use more of your own clean power.
• Blackout protection: Many batteries provide emergency backup during outages.
• Peak savings: Store power when it’s cheap and use it when it’s expensive.
• VPP-ready: Most batteries are compatible with Virtual Power Plants (VPPs) for additional value.

❌ Considerations:

• Higher upfront cost: Expect to invest $8,000–$15,000+, depending on system size and brand.
• Slower ROI: Payback can take 7–12 years, depending on usage and local tariffs.
• More complexity: Involves battery management systems, apps, and sometimes maintenance.

Option 2: Catch Power Diverter

How it works:
A diverter like Catch Power redirects excess solar energy to your electric hot water system rather than letting it export to the grid. It’s a simple way to make the most of your self-generated power.

✅ Key benefits:

• Lower cost: Around $1,000–$1,500 installed—far cheaper than a battery.
• Faster ROI: Often pays for itself in just 2–4 years through hot water bill savings.
• Simple setup: No apps or complex hardware—just install and go.
• Low maintenance: Fewer parts, no storage system to manage.

❌ Considerations:

• Limited use: Only offsets hot water usage.
• No backup: Doesn’t provide power during outages or store energy for night-time use.
• Not scalable: It’s a targeted solution, not a whole-home energy strategy.

So… Which Is Best for You?

That depends on your priorities and energy usage patterns.

Choose a battery if:

• You want to maximise energy independence.
• You experience regular blackouts or want backup protection.
• You’re already investing heavily in solar and want a long-term solution.

Choose a Catch Power diverter if:

• You want a quick, cost-effective way to use more of your solar.
• You use a lot of electric hot water.
• You’re not ready for the cost or complexity of a battery yet.

Final Thoughts

The good news? You don’t have to choose just one.

Many savvy solar households start with a diverter to unlock immediate savings, then upgrade to a battery later as prices come down or government incentives improve. With programs like the new Cheaper Batteries for Cleaner Energy rebate rolling out from July 1, batteries are becoming more accessible than ever.

As always, it’s about choosing the right solution for your situation today—while keeping an eye on where the market is heading tomorrow.

Want help deciding?

Reach out to our trusted installer network. These are handpicked professionals who understand both the tech and the economics, and they’ll help design a system that works for your goals and budget.