Can Solar Actually Lower Your TNB Bill?
The short answer: 100% yes.
Switching to solar isn’t just a “"green” move – it’s a smart way to shield yourself from rising electricity costs and taxes.
How Do You Save?
1. Use Solar First
Your panels generate electricity from the sun, and your home would use this Solar Electricity first. You buy less from TNB.
2. “Sell” the Rest to TNB
If your systems generates more than you use, you sell the excess to TNB under Solar ATAP and receive credits on your bill.
The Savings Flow
Direct Usage Savings
When your panels generate power, your home uses it first. This means you buy less from TNB and save more by avoiding taxes and fees.
TNB Bill Credits
Any energy you dont’t use is automatically sent back to the grid. Thanks to the Solar ATAP programme, TNB credits your bill for that extra power.
You either avoid buying expensive electricity or earn credits under Solar ATAP – both WILL reduce your bill.
How Much Can You Save Per kWh of Solar Electricity?
It depends on one key factor: How much Solar Electricity you use directly during the day.
If your home uses 1,000kWh and your system generates 1,000kWh Solar Electricity, the table below gives a good estimate of how much you could save.
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Every kWh of Solar Electricity you use avoids the full TNB tariff for that kWh – that’s 100% savings per kWh.
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If you use zero Solar Electricity (seriously doubt it in a real home), selling your Solar Electricity to TNB will save you 60%–68% per kwh, depending on your TNB tariff tier.
(This is does not include other TNB bill components such as Retail, KWTB , SST, AFA and EEI).
The Bottom Line
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Everyone with solar saves, it’s just a matter of how much.
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The more Solar Electricity you use directly, the more you save.
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Your monthly savings effectively “pay back” the system cost – the more you use directly the faster the payback.
A Quick Note: TNB Bills Are Complicated
Electricity billing in Malaysia has multiple moving parts – Energy Efficiency Incentive (EEI), Automatic Fuel Adjustment (AFA), SST, KWTBB, tariff structures, and usage thresholds that trigger different charges.
Two homes with identical solar systems can have different savings depending on how much solar they use directly and how much they still “purchase” from TNB in a given month.
How Much of Your TNB Bill Can You Actually “Erase”?
Dont’t guess. Click the button below to see your potential solar savings.
Calculate Your Savings