Blog

Practical insights on energy, building automation, and compliance for buildings and industry, by the Cobler team.

A 24-hour ring with the weekday 2pm to 10pm peak segment glowing amber, wired to a house and a factoryTNB Bills & Tariffs

TNB Peak and Off-Peak Hours: ToU Times, Rates and Tips

TNB peak hours are 2pm to 10pm, Monday to Friday. Weekends and 15 public holidays are off-peak all day. ToU rates for homes and businesses, ToU vs the normal tariff, and how to switch.

Oct 6, 2026Read
Waktu Puncak TNB: Jadual Puncak dan Luar Puncak Tarif ToUTNB Bills & Tariffs

Waktu Puncak TNB: Jadual Puncak dan Luar Puncak Tarif ToU

Waktu puncak TNB ialah 2 petang hingga 10 malam, Isnin hingga Jumaat. Sabtu, Ahad dan 15 cuti umum luar puncak sepanjang hari. Kadar sen/kWh setiap kategori ToU, bila ToU lebih murah, dan kesannya pada caj MD Voltan Sederhana.

Sep 26, 2026Read
Caj Kapasiti dan Caj Rangkaian TNB: Maksud dan Cara KiraTNB Bills & Tariffs

Caj Kapasiti dan Caj Rangkaian TNB: Maksud dan Cara Kira

Maksud caj kapasiti dan caj rangkaian dalam bil TNB bawah RP4, kadar untuk domestik, Voltan Rendah dan Voltan Sederhana, dan contoh kiraan: dari RM1,182.50 untuk kedai 5,000 kWh hingga RM71,416 untuk kilang MD 800 kW.

Sep 26, 2026Read
District cooling network with a central chilled-water plant piping to city towers through energy transfer stationsHVAC & Chiller Plants

District Cooling Malaysia: What You Actually Pay For

Putrajaya's ministries have run without their own chillers since 1999. How district cooling works in Malaysia, what RT and RTh mean on the bill, why delta-T can cost you, and what running a plant at 0.7 kW/RT taught us about the economics.

Sep 3, 2026Read
Silicon wafer above a branching utility metering hierarchy with chiller, compressor and water loop iconsIndustry Guides

Semiconductor Plant Energy Management: Meter First

A practical metering hierarchy for Malaysian wafer fabs, OSAT plants and electronics factories. See what to measure first, how to expose idle load, and how one 30-minute interval can set TNB maximum demand.

Sep 3, 2026Read
Technical illustration of sun rays deflecting off a building facade, representing MS 1525 OTTV envelope designCompliance & Incentives

MS 1525: Practical Compliance Guide for Malaysia

MS 1525 sets Malaysia’s baseline for non-residential building energy efficiency. Learn when it may be mandatory, the OTTV, roof, lighting and chiller checks, who owns each task, and what evidence to keep.

Sep 3, 2026Read
Transmission pylon anchoring a forecast chart fanning into future paths with an amber dashed projection, navy blueprint styleTNB Bills & Tariffs

Malaysia Electricity Price Outlook 2027

The AFA has swung 12.7 sen/kWh in fourteen months. Here is what the fuel, carbon, regulatory and green-procurement evidence actually supports for 2027 C&I budgets, with confidence levels attached and fact separated from opinion.

Aug 28, 2026Read
Contract documents and fountain pen under a declining cost curve with an amber savings wedge, navy blueprint styleEnergy Monitoring & Analytics

ESCO Energy Performance Contracts in Malaysia

An ESCO offering to fund your retrofit and guarantee the savings is offering you a specific risk allocation, not free money. Here is how energy performance contracting works in Malaysia, and which clauses decide whether the savings ever reach you.

Aug 28, 2026Read
Isometric university campus with clocktower and buildings linked to a central plant, one amber energy line, navy blueprint styleIndustry Guides

Campus Energy Management for Malaysian Universities

Malaysian campuses cross the EECA threshold long before anyone treats energy as a portfolio problem. A practical guide to baseload audits, faculty sub-metering and demand ownership across dozens of buildings.

Aug 28, 2026Read