7 Sneaky Reasons Your TNB Bill Is So High (And How to Fix Them)
By Aina Rahman | Updated for 2026 Let’s be honest—there’s no feeling quite like opening your TNB bill and doing a double-take. You haven’t changed your habits, the family size is the same, yet the number keeps creeping up. I’ve been there, standing in my kitchen in Shah Alam, staring at the bill and wondering, “Where is all this electricity going?” After chatting with technicians and doing a little detective work in my own home, I realised the culprits aren’t always the obvious ones. Often, it’s the sneaky little things we overlook that add up to big ringgits. Today, I’m sharing the seven most common hidden reasons your electricity bill is high—and exactly how to fix them. No technical jargon, just simple steps that actually work. 1. Your Air Conditioner Is Working Overtime (And You Don’t Even Know It) This is the biggest culprit in most Malaysian homes. We use our ACs daily, but we rarely think about how they’re running. If your air conditioner has to struggle to cool a roo...