So, you bought an Electric Vehicle (EV) to save on petrol. Whether it’s a Tesla Model 3, a BYD Atto 3, or a luxury BMW iX, you are part of the green revolution. But if you are charging it at home using TNB’s standard tariff, are you really saving as much as you could?
With the implementation of Solar ATAP 2026, the strategy for maximizing ROI has shifted completely. Here is why the old “charge at night” habit might be costing you money.
The Solar ATAP Problem: Use It or Lose It
Under the new policy, solar credits do not roll over to the next month. If your solar panels generate huge amounts of power while you are at work, and you don’t use it, that energy is “forfeited” if it exceeds your consumption for the month.
Your EV is essentially a giant battery on wheels. Instead of letting your solar energy vanish, you should be dumping that free power directly into your car.
Why Weekend Charging is the New Gold Rush
Most EV owners charge overnight when they get home. But under Solar ATAP, Self-Consumption is king.
If you can shift your charging schedule to weekends (Saturday & Sunday) between 11:00 AM and 3:00 PM, you are charging your car with 100% free sunlight. You bypass TNB entirely, and you ensure zero solar wastage.
🚗 EV Charge Cost Estimator
See how much you save by charging with Solar vs. Grid.
Smart Chargers: The Missing Link
You can’t always be home to plug in at noon. This is where smart EV chargers come in. When paired with a HOMI Solar System, we can configure your charger to only activate when your solar production hits a certain peak.
This ensures you are never pulling expensive grid electricity, even if you aren’t home to flip the switch.
⚡ Consult HOMI on Solar EV ChargingFAQ for EV Owners
Can a standard 6kWp solar system charge my EV?
Yes, but it depends on your daily mileage. A 6kWp system produces roughly 20-24kWh per day, which is enough for about 120km of driving range purely on solar.
What if I charge my EV at night?
If you charge at night, you draw power from TNB. Under Solar ATAP, you can use daytime credits to offset this, BUT only within the same billing month. Excess credits are forfeited.
Does HOMI install the EV charger too?
We work with certified partners to ensure your solar inverter and EV charger communicate perfectly for load balancing.
