The Energy Ministry says the new tariff structure for Sep–Dec 2026 lowers the average base rate to 3.72 baht/unit (from 3.78). Four measures apply to the current bill: public street-lighting costs removed from household bills, a lower rate for the first 200 units (under 3 baht/unit), a new tariff structure for rented rooms and homes without household registration, and the Ft charge fixed at 16.23 satang/unit. Check your own bill for the change. If you rent rooms or dormitories, review how you pass electricity costs to tenants under the new structure. Savings figures are reported by users and vary by usage.