Practical insights on energy, building automation, and compliance for buildings and industry, by the Cobler team.
TNB Bills & TariffsA power factor surcharge is a penalty for how you draw power, not how much you use - and it's almost always avoidable. Here's what triggers it and how to stop paying.
TNB Bills & TariffsFeaturedMaximum demand is the quiet line item inflating Malaysian electricity bills. Under TNB's RP4 tariff, cutting TNB maximum demand charges is now worth roughly RM89-RM97 per kW, every month.
TNB Bills & TariffsTNB ToU under RP4: peak is 2pm-10pm weekdays only; nights, weekends and 15 public holidays are off-peak. What the myTNB 6-month warning means, the off-peak maximum demand exemption, and how to model a switch with 30-minute interval data.
TNB Bills & TariffsRooftop solar payback in Malaysia depends as much on monitoring as on the panels. Here is what to measure, why it matters under SelCo and Solar ATAP, and how to protect a 20-year asset.
TNB Bills & TariffsBESS can shave the peak demand that drives your TNB Capacity and Network charges, but only accurate dispatch and monitoring decide whether it pays back.
TNB Bills & TariffsMaximum demand drives some of the largest charges on a Malaysian commercial bill, and TNB changed how it is billed in July 2025. Here is how MD is measured, charged, and reduced.