Practical insights on energy, building automation, and compliance for buildings and industry, by the Cobler team.
TNB Bills & TariffsRooftop solar cuts kWh, but it rarely touches the maximum demand charge that TNB bills on a single 30-minute interval. Here is why, and what actually protects your kW line under RP4.
TNB Bills & TariffsTen 22 kW AC chargers stacking inside one 30-minute peak interval can add over RM21,000 a month in RP4 demand charges. How building operators manage EV charger load before it hits the meter.
TNB Bills & TariffsSolar ATAP settles C&I export at ~19 sen/kWh while self-consumed solar avoids 28-52 sen. Why your load profile, not the scheme, decides rooftop payback under the post-NEM rules.
TNB Bills & TariffsCost recovery via check meters is legal; unlicensed reselling is not. How Malaysian landlords should split an RP4 TNB bill across tenants, allocate capacity and network charges, and automate the invoices.
TNB Bills & TariffsThe Automatic Fuel Adjustment is the line that moves your bill every month even when your tariff is fixed. How AFA works, how much it has swung, and the one lever you have.
TNB Bills & TariffsMaximum demand is billed on your worst half-hour of the month. Under RP4, the old MD charge split into a Capacity Charge and a Network Charge - here's how it works.
TNB Bills & TariffsThat small 1.6% KWTBB line on your bill is the Renewable Energy Fund levy. What it funds, who pays it, and the 2025 change that lets some businesses stop paying it.
TNB Bills & TariffsFeaturedA TNB commercial bill isn't one number, it's seven separate charges, and some you can cut while others you can't touch. Here's how to read each line and find the leverage.
TNB Bills & TariffsLine your monitoring up against the TNB bill and the numbers won't agree, and you can't dispute it. Why that's normal, why it doesn't matter, and what your meter is really for.