If you’ve been researching solar, batteries, and electric vehicles, you’ve probably seen the term “bidirectional EV charger” come up. And if you’ve looked deeper, you might’ve heard about the Sigenergy SigenStor DC EV Charger.
It’s one of the first products of its kind available in Australia. It claims to do a lot. It can charge your EV, power your home, and send electricity back into the grid. It also works directly with solar power. That sounds promising. Does it live up to the hype?
At PSC Energy, we educate folks about news and updates for solar technology. We’ll help you decide if it’s the right fit for your home. Whether you’ve already got solar or you’re just starting your journey, we’ll walk you through what this product can offer and what to consider before buying it.
PSC Energy is also installing it if you’re interested.
In this article, you’ll learn about the following:
- What Is the Sigenergy SigenStor Bidirectional DC EV Charger?
- What Makes the Sigenergy Bidirectional EV Charger Different from Other EV Chargers?
- How Does the Sigenergy Bidirectional EV Charger Work with Solar Panels?
- What Are the Pros and Cons of the Sigenergy Bidirectional DC EV Charger?
By the end of this article, you’ll know what the Sigenergy bidirectional EV DC charger does, how it works, and why it’s different from regular EV chargers.
Let’s get started.
What Is the Sigenergy SigenStor Bidirectional DC EV Charger?
The Sigenergy DC EV Charger is a 25-kilowatt bidirectional charger. That means it can send electricity into your car battery and pull electricity back out of the battery to power your home or rapidly export to the grid.
This is what people mean when they talk about Vehicle-to-Home (V2H) or Vehicle-to-Grid (V2G).
It also uses DC power, which is the same type of electricity that solar panels produce and that batteries store.
Most home EV chargers are AC chargers that require extra steps to convert power back and forth between DC and AC. Every time that happens, a little energy gets lost.
With a DC charger, the power flows more efficiently. You lose less in the process, and everything runs smoother. It’s also fast at what it does.
If you’d like to learn a bit more about SigenStor, a solar battery we carry, we recommend you check out the following article titled, Sigenergy SigenStor Review.
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What Makes the Sigenergy Bidirectional EV Charger Different from Other EV Chargers?
Here’s what the SigenStor DC EV Charger can do that most home chargers can’t:
- Charge your EV directly from solar power.
- Send energy from your car battery to power your home.
- Send extra electricity to the grid and potentially earn money.
- Integrate with Sigenergy’s home battery and solar platform.
- Modular energy system, can update over time with new hardware and software as EV standards evolve.
This charger is part of Sigenergy’s larger smart home system. This product fits right in if you already use their stackable SigenStor home battery.
They’re modular and work like LEGO toy building blocks. They stack together to form one unit. But it can also work as a standalone charger if you’re only using solar and an EV.
If you want to get the most out of your solar, or if you’re planning to use your EV as a backup power source, this matters.
How Fast Is It?
The Sigenergy DC charger can push out up to 25kW of power. That’s fast for a home charger.
This kind of power level is great for:
- Rapidly charging EVs with larger batteries.
- Supporting higher home loads during peak demand.
- Speeding up energy export during grid events.
- Solar output can be used more quickly during the day.
You might not always need to charge at full speed, but it’s good to know it’s there.
If you’re interested in learning a bit more about solar panels and energy systems, you might want to check out the following article titled, Are Solar Panels Worth It in NSW, Australia? A Price Breakdown for 2025.
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How Does the Sigenergy Bidirectional EV Charger Work with Solar Panels?
During the day, your solar panels are often making more electricity than your home needs. That extra power would flow into a home battery or be sent back to the grid. If you send it to the grid, you usually only get a small credit on your bill.
With the Sigenergy SigenStor DC charger, you have a smarter option. You can send that extra solar energy directly into your EV battery.
DC Coupling
Because the charger uses DC coupling, it moves the energy from your panels straight into your EV without extra conversions. Your solar panels already make DC electricity. Your EV battery stores DC electricity.
DC coupling means the power does not need to change from DC to AC and back again. This saves energy and makes charging faster and more efficient.
However, when you export from your EV battery to the home or grid, your solar inverter must convert the power from DC to AC.
Multiple Uses
- At night, when the sun goes down and your panels stop making power, you can pull stored energy from your EV. You can use it to run your lights, fridge, WiFi, and anything else you need.
- If your home loses grid power in a blackout, your EV can keep necessary devices running without a break. The switch happens instantly. You would not even notice the grid went down.
- And if your energy retailer offers a good feed-in tariff, you have another choice. You can sell the stored energy from your EV battery back to the grid when demand is high and prices peak. That can help you earn extra money or offset your energy bills.
We recommend doing this with an energy wholesaler like Amber.
Here is a quick summary of what the SigenStor DC Charger allows you to do:
- Solar charge your EV during the day with no wasted energy.
- Get backup power during outages with seamless switching.
- Use your car to run your home at night when solar is not available.
- Avoid buying expensive peak grid power in the evening.
- Trade energy with the grid when rates are high.
- Avoid needing a separate home battery if your EV battery is big enough.
With DC coupling, everything flows smarter, faster, and cleaner. It helps you get the most from every ray of sunlight your panels capture.
If you’re interested in learning a bit more about Amber, you might want to check out the following article titled, Amber Energy Australia Explained: A Smart Way to Save (and Earn) with Solar Panels and Battery.
Ready to go solar? Click here.
What Are the Pros and Cons of the Sigenergy Bidirectional DC EV Charger?
Here’s a quick summary to help you weigh your options.
Pros:
- Works directly with solar and battery.
- Very efficient energy flow (DC-coupled).
- Full bidirectional functionality (V2H, V2G, V2L).
- High-speed 25kW charging.
- Integrates with other Sigenergy products.
- Future-ready with software updates.
Cons:
- You need a car that supports bidirectional charging to use all features.
- It’s more expensive than regular AC chargers.
- You might need to upgrade your switchboard or home wiring.
- Grid approval may still be required, depending on your DNSP.
If you’re like to learn about some of the potential downsides to the SigenStor energy system, you might want to check out the following article titled, Problems with Sigenergy SigenStor Solar Energy System.
Get started with solar. Click here.
Is the Sigenergy Bidirectional DC EV Charger Worth It?
If you’re serious about solar and energy independence, the answer is yes.
This charger does more than most. It helps you store your own power, use it efficiently, and stay ready for the future of energy. It’s a smart option for anyone looking to combine EV charging with a high-performance home energy system.
The Bottom Line
The Sigenergy SigenStor DC EV Charger is not just a charger. It’s a high-speed, high-efficiency, bidirectional energy hub. It helps you charge faster, use more solar, and take greater control over your power.
At PSC Energy, we help customers find the best solar system for their unique energy needs and goals. We’ll walk you through what’s possible, what’s practical, and how to build a system that works for you now and down the road. It’s what we do.
If you’d like to learn a bit more about the cost of SigenStor, we recommend you check out the following article titled, How Much Does the Sigenergy SigenStor Cost?
