Choose the marginal rate for the right period: 18/30 halala/kWh through 2026, or 21/33 halala from 1 January 2027. The fixed service fee cancels out when comparing two ACs at the same breaker size. Compare both tariffs.
Why annual label consumption?
It gives a more comparable basis than marketing terms alone. Capacity, annual energy use, seasonal efficiency and purchase price all matter.
Which electricity tier should I use?
For 2026, use 18 halala/kWh under 6,000 kWh/month or 30 above it. From 1 January 2027, use 21 or 33 halala/kWh for the same tiers. Households crossing the limit in some months may land between these single-rate comparison scenarios.