Why You Still Pay Current Charges With an NEM Balance: What Solar Credit Can and Cannot Offset
Decision details
Fits if: NEM/ATAP owners seeing a remaining credit balance while the bill still carries charges — or an unexplained 'Pelarasan' line.
Main drawback: The offset scope stated here is measured from the Solar ATAP guideline; a dedicated NEM Rakyat guideline summary of offset scope is not yet admitted as its own registry key — pre-ATAP NEM owners should request utility clarification on their own bill.
Compare: scheme (NEM vs ATAP); offsettable vs non-offsettable components; block-based credit rate; the 600 kWh SST threshold; balance and forfeiture labels on the bill; the 12-month rollover clock.
In this guide
A credit balance is not a charge-free card
[Reviewed: 10 October 2026]
Short answer: the question “I have an NEM balance, why am I still charged current charges?” is settled by one gazetted rule: solar export credit clears only the Energy Charge component of your bill — fixed charges and non-energy components are unaffected, and credit cannot be used to offset AFA [source]. On top of that, two surcharges stand on their own thresholds: ATAP customers’ AFA is computed on full import [source] and the 8% SST follows consumption above 600 kWh [source]. So a bill with a large credit balance still carries charge rows — and that is not an error, it is the structure. Read the bill by component, not by total.
The question now arrives from two directions in the community: new NEM owners surprised to see charges on the first bill, and ATAP owners watching an adjustment line ADD charge despite low net usage. Both trace to the same offset scope.
Holding a bill with a credit balance on it? Photograph every row and send it on WhatsApp with your scheme (NEM/ATAP) — we read the components first, not the total.
Which components get cleared, which stay
| Bill component | Offset by export credit? | What it means for you | Measured basis |
|---|---|---|---|
| Energy Charge (usage blocks) | Yes — within the same billing period | The only row your credit balance actually clears — focus your comparison there | Export offsets import at the Energy Charge; credit offsets only the Energy Charge [source]; rate RM0.2703/kWh up to the 1,500 kWh block, RM0.3703/kWh above [source] |
| AFA | No | Budget the full monthly AFA even in high-credit months — for ATAP it is computed on full night imports, not the net balance | Credit value cannot offset AFA; for ATAP, AFA is computed on total full import [source] |
| Electricity SST | No — follows the usage threshold | Usage crossing 600 kWh that month → the 8% SST still lands even though credit clears the Energy Charge | 8% on domestic use above 600 kWh (28-day+ periods), since 1 March 2024 [source] |
| Fixed / capacity / network charges | No | The smallest row that surprises most often — it will not vanish however large the credit; keep it in the monthly budget | Fixed charges and non-energy tariff components unaffected by credit [source] |
A row on your bill still unclear? Send the row name with your import/export readings on WhatsApp — we name which components your credit can and cannot offset.
The practical reading: a solar home’s monthly budget must keep room for groups two and three even in heavy-credit months. Homes with large night imports feel it most — AFA follows full import [source], not net balance.
The rows printed on the bill — and what they mean
myTNB defines the ATAP bill labels explicitly: ‘Baki Terdahulu’ (previous balance), ‘Caj Semasa ATAP’ (current ATAP charges), ‘Pelarasan Penggenapan’ (rounding adjustment), and the forfeiture line ‘ATAP Balance Not Carry Forward (Baki ATAP Tidak Dibawa Ke Hadapan)’ — unutilised ATAP balance that will be forfeited [source]. Read that forfeiture line monthly: it is energy you generated but neither used nor sold — zero value at cycle end. For general bill reading (kWh, AFA, billing days) the bill-reading page owns it; for post-solar rising-bill diagnosis, the dedicated page exists.
The forfeiture clocks: ATAP monthly, NEM twelve-monthly
Two different clocks, and both belong in your system’s value arithmetic:
| Scheme | Forfeiture rule | What it means for you | Suited for |
|---|---|---|---|
| ATAP | Surplus unused within the billing period is not carried to the next — it is forfeited [source]; contract runs 10 years from the Start Date, self-consumption only after [source] | Repeated large surplus = zero value at cycle end — a sign the system oversized the load, or that a battery deserves testing | ATAP owners who see the 'ATAP Balance Not Carry Forward' row on their bill |
| NEM (pre-ATAP) | Net credit rolls over a maximum of twelve months within the Settlement Period; the balance after that is forfeited with no cash transaction; after the ten-year contract, no rollover at all — the system becomes self-consumption [source] | Sunny-month credit shields lean months for up to 12 months — but not forever and never as cash | NEM owners with seasonal usage swings or long absences |
The forfeited value is the battery’s economic space: the gap between the full import rate and the export credit value [source] — the battery retrofit-cost page works it through as a purchase decision.
The mechanism is explicit: this page reads bill structure and carries no sales rail behind it — your enquiry is answered by a human on WhatsApp during working hours as component interpretation, not utility-rate confirmation. We do not promise SLAs we do not measure.
Check my solar bill components (WhatsApp): scheme, the confusing row, import/export readings.
Needs facts: a dedicated NEM Rakyat offset-scope key from guideline GP/ST No.27/2021 (rate and components offset for pre-ATAP NEM); KWTBB’s position on NEM/ATAP customer bills; a dated full ATAP bill specimen with all labels for visual reference.
Frequently asked questions
I have an NEM balance — why does the bill still carry charges?
Because export credit clears only certain components. The gazetted Solar ATAP rule: export offsets import at the Energy Charge within the same billing period, credit offsets only the Energy Charge — fixed charges and non-energy components are unaffected, and credit cannot offset AFA [source]. So the AFA row, fixed charges and SST stand even with a large credit balance; that is the 'current charge' you are seeing.
What is one exported unit worth to me?
For ATAP domestic customers the credit rate is the domestic tariff's Energy Charge component: RM0.2703 per kWh (27.03 sen) for the usage block up to 1,500 kWh monthly and RM0.3703 per kWh (37.03 sen) for the block above 1,500 kWh [source]. That sits well below the full import rate — the gap is what makes a battery attractive for heavy night profiles [source].
What does the 'Pelarasan' line on my bill mean?
myTNB defines the ATAP bill labels: 'Baki Terdahulu' (previous balance), 'Caj Semasa ATAP' (current ATAP charges), 'Pelarasan Penggenapan' (rounding adjustment), and the forfeiture line 'ATAP Balance Not Carry Forward (Baki ATAP Tidak Dibawa Ke Hadapan)' — unutilised ATAP balance that will be forfeited [source]. Incentive-type adjustment lines appear when an efficiency incentive is recomputed on net readings — the community case showed a below-600 kWh incentive re-applied because net import crossed the threshold, not because of a solar penalty.
How long can my credit balance carry forward?
Two different clocks by scheme. ATAP: no carry-forward at all — surplus unused within the billing period is forfeited [source], and the forfeiture line is printed on the bill [source]. NEM: net credit rolls over a maximum of twelve months within the Settlement Period, the balance after that is forfeited with no cash, and after the ten-year contract no rollover at all [source]. The ATAP contract also runs ten years, with self-consumption only after [source].