The only expensive kWh you can still kill is the one you use.
Under ATAP, leftover export credits Energy Charge (Caj Tenaga) only and dies in that billing month. A car in the driveway at noon can eat that kWh. A car that only plugs in after 10 pm cannot. The official-rate job is to stop export / forfeit — not to sell a wide win over cheap night ToU.
Vendors already own “drive free forever.” We will not.
Three kWh, three values
Domestic General, ≤1,500 kWh band, no AFA. RP4 components only.
| kWh | What it is worth | sen/kWh |
|---|---|---|
| Self-consumed solar (house or daytime EV) | Avoids Energy + Capacity + Network | 44.43 (27.03 + 4.55 + 12.85) |
| ATAP export | Energy Charge only | 27.03 |
| ToU off-peak grid | Energy + Capacity + Network | 41.83 (24.43 + 4.55 + 12.85) |
| ToU peak grid (same stack) | Energy + Capacity + Network | 46.92 (28.52 + 4.55 + 12.85) |
ToU peak: Mon–Fri 2 pm–10 pm. Off-peak: 10 pm–2 pm weekdays plus all weekend.
Capacity 4.55 and Network 12.85 sit on both sides of the self-use vs night-ToU comparison. The Energy-only gap vs overnight ToU is 2.60 sen (27.03 vs 24.43). That is not a brochure win.
Self-use vs export is the gap that matters: 17.40 sen without AFA (44.43 − 27.03). If that month’s import is >600 kWh, add the dated AFA. August 2026 billed AFA is +3.80 sen/kWh (myTNB rates.js + Single Buyer, 17 Aug 2026). Self-use vs export at that August AFA = 21.20 sen. Jun billed +2.59, Jul billed +3.59. myTNB +8.33 is a 30 Jun 2026 forecast, not the August actual. Do not average. AFA is waived at ≤600 kWh. ATAP credit cannot offset AFA.
We do not fold EEI, SST, or KWTBB into one unofficial all-in rate. We do not publish a charger sticker price, RM136/month, or payback years.
A simple day — terrace + one EV
ASSUMPTION — pattern only, not your kWh. Landed terrace, one car, TNB meter. We do not invent how many kWh the car drinks.
Weekday, office commute. The car leaves in the morning and comes back after the sun has done most of its work. Midday solar hits the house first. Leftover goes out as ATAP export at 27.03 sen, same month, or it hits MAQ and is forfeited. If you plug in at 7 pm you are on ToU peak (2 pm–10 pm). If you wait until 10 pm you are on ToU off-peak at the 41.83 stack (no AFA). Night charging is grid. Last month’s export credit cannot pay for it.
WFH, or the car is home at noon. Mode 3 on a dedicated circuit can take surplus while Caj Tenaga is otherwise about to leave the meter. That kWh is self-consumed at 44.43 (or 48.23 if August AFA applies because import is >600 kWh). That is the combo the bill can see.
When the combo is real
- The car is actually home in sun hours, often enough that export would otherwise leave — or forfeit.
- You are on ATAP, not leftover NEM, and you understand what the bill credits.
- You are not counting on next month. There is no bank.
- If import is >600 kWh, AFA is a dated extra on the import side; self-use avoids it, export credit does not offset it.
When night ToU is enough and solar can wait
- The car only parks after 10 pm, every working day.
- Nobody is home to use midday kWh, so a roof would mostly export at 27.03 and risk the month-end forfeit.
- You are not buying a rebate story. SuRIA Home is a commissioned-by-31 Dec 2026 cash claim with unpublished remaining quota — it does not change the sen stack above.
Night ToU without a roof is already the 41.83 stack (no AFA). Self-use solar is 44.43. The spread is that same 2.60 sen Energy gap. Do not sign a solar+charger quote because someone called 2.60 sen “free fuel.”
When the combo is a sales story
- Condo / multi-tenant: not eligible for ATAP. There is no export credit to rescue.
- Night-only charging sold as a big beat on ToU. Capacity and Network sit on both sides. Energy-only gap: 2.60 sen.
- Wrong size: MAQ = kWac × 5 sun-hours × billing days. Above MAQ, export is forfeited even if the bill is still positive. Oversizing for a car that is never home at noon is a forfeit plan.
- “Drive free forever” or RM136/month. Not from this page. Not an official rate.
- A quote that still talks like 2024 NEM 1:1. Read ATAP vs NEM first.
Mode 1 / 2 / 3 — and the TNB wallbox rules
- Mode 1 is banned. No 13A socket.
- Mode 2 (IC-CPD, ≤32 A) is permitted.
- Daily home charging is Mode 3 in practice — a wallbox on a dedicated circuit.
TNB: no approval needed for the wallbox itself. Use an ST contractor. Dedicated circuit. Single-phase total load ≤10 kW. 22 kW needs three-phase.
Individual tax relief on home charging facilities: up to RM2,500 through YA 2027. No official home-charger cash rebate was found. That relief is not SuRIA, and SuRIA is not a charger rebate.
If the quote in front of you still talks like 2024, go back to ATAP vs NEM before you argue about the car.
Peninsular TNB; confirm on your own bill; not a quote; rates dated 17 Aug 2026.
Cas kereta dari bumbung, atau ToU malam?
Unit yang mahal, yang masih boleh anda bunuh, ialah unit yang anda guna sendiri.
Bawah ATAP, baki eksport kredit Caj Tenaga (Energy Charge) sahaja dan mati dalam bulan bil itu. Kereta di laman pada tengah hari boleh makan unit itu. Kereta yang hanya plug-in lepas 10 malam tidak boleh. Tugas rasmi kadar ialah hentikan eksport / luput — bukan jual kemenangan besar atas ToU malam yang murah.
Vendor sudah punya “pandu percuma selamanya.” Kami tidak.
Tiga jenis unit, tiga nilai
Domestic General, jalur ≤1,500 kWh, tiada AFA. Komponen RP4 sahaja.
| Unit | Nilainya | sen/kWh |
|---|---|---|
| Solar guna sendiri (rumah atau EV siang) | Elak Tenaga + Kapasiti + Rangkaian | 44.43 (27.03 + 4.55 + 12.85) |
| Eksport ATAP | Caj Tenaga sahaja | 27.03 |
| ToU luar puncak, grid | Tenaga + Kapasiti + Rangkaian | 41.83 (24.43 + 4.55 + 12.85) |
| ToU puncak, grid (stack sama) | Tenaga + Kapasiti + Rangkaian | 46.92 (28.52 + 4.55 + 12.85) |
ToU puncak: Isnin–Jumaat 2 petang–10 malam. Luar puncak: 10 malam–2 petang hari bekerja plus seluruh hujung minggu.
Kapasiti 4.55 dan Rangkaian 12.85 duduk di kedua-dua belah banding guna-sendiri vs ToU malam. Jurang Caj Tenaga vs ToU semalaman ialah 2.60 sen (27.03 vs 24.43). Itu bukan kemenangan brosur.
Guna sendiri vs eksport itu jurang yang penting: 17.40 sen tanpa AFA (44.43 − 27.03). Jika import bulan itu >600 kWh, tambah AFA bertarikh. AFA dibilkan Ogos 2026 ialah +3.80 sen/kWh (myTNB rates.js + Single Buyer, 17 Ogos 2026). Guna sendiri vs eksport pada AFA Ogos itu = 21.20 sen. Jun dibilkan +2.59, Jul dibilkan +3.59. myTNB +8.33 ialah ramalan 30 Jun 2026, bukan kadar sebenar Ogos. Jangan puratakan. AFA dikecualikan pada ≤600 kWh. Kredit ATAP tidak boleh menolak AFA.
Kami tidak campur EEI, SST, atau KWTBB jadi satu kadar all-in tidak rasmi. Kami tidak terbit harga pelekat charger, RM136/bulan, atau tahun pulangan modal.
Satu hari ringkas — teres + satu EV
ANDAIAN — corak sahaja, bukan kWh anda. Teres landed, satu kereta, meter TNB. Kami tidak cipta berapa unit kereta itu minum.
Hari bekerja, commute pejabat. Kereta keluar pagi, balik lepas matahari sudah buat kerja. Solar tengah hari kena rumah dulu. Baki keluar sebagai eksport ATAP pada 27.03 sen, bulan yang sama, atau kena MAQ dan luput. Jika anda plug-in jam 7 malam, anda dalam ToU puncak (2 petang–10 malam). Jika tunggu sampai 10 malam, anda ToU luar puncak pada stack 41.83 (tanpa AFA). Cas malam itu grid. Kredit eksport bulan lepas tidak boleh bayar untuknya.
Kerja dari rumah, atau kereta ada di rumah waktu tengah hari. Mode 3 pada litar berasingan boleh ambil lebihan semasa Caj Tenaga sedang nak keluar meter. Unit itu guna sendiri pada 44.43 (atau 48.23 jika AFA Ogos terpakai kerana import >600 kWh). Itu kombo yang bil nampak.
Bila kombo ini benar
- Kereta memang ada di rumah waktu matahari, cukup kerap sampai eksport sepatutnya keluar — atau luput.
- Anda atas ATAP, bukan baki NEM, dan anda faham apa yang bil kreditkan.
- Anda tidak kira bulan depan. Tiada bank.
- Jika import >600 kWh, AFA itu tambahan bertarikh di belah import; guna sendiri elakkannya, kredit eksport tidak menolaknya.
Bila ToU malam cukup dan solar boleh tunggu
- Kereta hanya parkir lepas 10 malam, setiap hari bekerja.
- Tiada orang di rumah nak guna unit tengah hari, jadi bumbung akan banyak eksport pada 27.03 dan risikokan luput hujung bulan.
- Anda tidak beli cerita rebat. SuRIA Home ialah tuntutan tunai ditauliahkan menjelang 31 Dis 2026 dengan baki kuota tidak diterbitkan — ia tidak tukar stack sen di atas.
ToU malam tanpa bumbung sudah stack 41.83 (tanpa AFA). Solar guna sendiri 44.43. Beza itu jurang Tenaga 2.60 sen yang sama. Jangan tandatangan sebut harga solar+charger sebab seseorang panggil 2.60 sen “minyak percuma.”
Bila kombo ini cerita jualan
- Kondo / multi-tenant: tidak layak ATAP. Tiada kredit eksport untuk diselamatkan.
- Cas malam sahaja dijual sebagai tewaskan ToU besar-besaran. Kapasiti dan Rangkaian duduk di kedua-dua belah. Jurang Caj Tenaga: 2.60 sen.
- Salah saiz: MAQ = kWac × 5 jam matahari × hari bil. Atas MAQ, eksport luput walaupun bil masih positif. Oversize untuk kereta yang tak pernah ada waktu tengah hari itu rancangan luput.
- “Pandu percuma selamanya” atau RM136/bulan. Bukan dari halaman ini. Bukan kadar rasmi.
- Sebut harga yang masih cakap NEM 1:1 2024. Baca ATAP vs NEM dulu.
Mode 1 / 2 / 3 — dan peraturan wallbox TNB
- Mode 1 diharamkan. Tiada soket 13A.
- Mode 2 (IC-CPD, ≤32 A) dibenarkan.
- Cas rumah harian secara praktis Mode 3 — wallbox pada litar berasingan.
TNB: tiada kelulusan diperlukan untuk wallbox itu sendiri. Guna kontraktor ST. Litar berasingan. Beban jumlah fasa tunggal ≤10 kW. 22 kW perlukan tiga fasa.
Pelepasan cukai individu atas kemudahan cas rumah: sehingga RM2,500 hingga YA 2027. Tiada rebat tunai rasmi untuk charger rumah dijumpai. Pelepasan itu bukan SuRIA, dan SuRIA bukan rebat charger.
Jika sebut harga di depan anda masih berbunyi macam 2024, balik ke ATAP vs NEM sebelum berdebat pasal kereta.
TNB Semenanjung; semak pada bil anda sendiri; ini bukan sebut harga; kadar bertarikh 17 Ogos 2026.