Why EVs Are the New Energy Storage Solution?
Electric vehicles (EVs) are more than just transport. With the right solar and battery setup, your EV can act as a massive energy storage system for your Perth home. Instead of only charging overnight, daytime EV charging directly from your solar system maximises self-consumption, reduces Synergy bills, and lowers grid reliance.
As Synergy’s peak tariffs rise and feed-in tariffs remain low, the smartest move is to use your solar power at home rather than export it for cents on the dollar. Charging your EV during the day is one of the best ways to capture that value.
How Solar Day Charging Works
During Perth’s sunny hours, rooftop solar systems often generate more energy than the household consumes. Traditionally, this surplus gets exported to the grid at the low Synergy feed-in tariff. But if you plug your EV in during the day, that excess solar is funnelled into your car instead.
This means:
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Lower energy bills – charge your EV at home for free.
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Higher solar ROI – avoid losing value on exported electricity.
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Battery flexibility – pair daytime EV charging with a home battery for even greater control.
Turning Your EV into a Super Battery
Perth homes with advanced systems like Sigenergy SigenStor or Fronius GEN24 Plus are already unlocking the next step: vehicle-to-home (V2H) and vehicle-to-grid (V2G).
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Sigenergy SigenStor: the world’s first all-in-one V2X energy system, supporting 25 kW bi-directional EV charging. Your EV can back up your home instantly during a power outage or feed energy back into a Virtual Power Plant (VPP).
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Fronius GEN24 Plus: with BYD batteries or the new Fronius Reserva, you can combine solar, storage, and EV charging, backed by PV Point or Full Backup functionality.
These systems comply with AS/NZS 4777 and Western Power connection standards, ensuring seamless integration for WA households.
Perth Context: Why This Matters Now
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Low FiT (Feed-in Tariff): Synergy’s buyback rates are modest, making self-consumption crucial.
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Battery Rebates: WA and Federal incentives from July 2025 slash upfront costs for solar batteries and EV-ready systems.
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Grid Stability: Western Power is encouraging households to store and use power locally, easing grid strain.
By charging your EV during the day with solar and a smart inverter, you’re future-proofing your home and playing an active role in WA’s renewable transition.
Ready to Maximise Your Solar?
At Australis Solar, we design systems that unlock the full potential of solar + storage + EV charging for Perth homes. Whether it’s Sigenergy SigenStor’s V2X platform or Fronius GEN24 Plus with BYD or Reserva batteries, we’ll ensure your setup is compliant, efficient, and ready for the next wave of energy innovation.
Get in contact with Australis Solar today about an EV charger!