Mastering Industrial Solar Net-Metering in Bangladesh: Statutory Steps & Grid Interconnection

Net-metering allows industrial power consumers in Bangladesh to synchronize grid-tied rooftop solar systems with their utility provider, using surplus weekend generation to offset high-tariff daytime consumption during working shifts. When engineered correctly, net-metering turns weekends and holiday shutdowns into bill credit generators.

Regulatory Eligibility and Sizing Constraints

Under the Ministry of Power, Energy and Mineral Resources (MPEMR) Net-Metering Guidelines, any high-voltage (HT) consumer connected at 11kV, 33kV, or 132kV is eligible. The maximum permissible solar AC inverter output capacity is capped at 70% of the consumer's sanctioned load, subject to the host transformer capacity.

• Sanctioned Load Cap: Solar inverter rated AC capacity must not exceed 70% of sanctioned contract load.
• Distribution Transformer Cap: Total solar injection on any local distribution feeder must remain below 70% of distribution transformer capacity.
• Total Harmonic Distortion (THD): Inverter output current THD must be verified below 3% under IEC 61727 standards.

The Five Interconnection Clearance Steps

To secure approval from utility engineers, Greenery EPC manages the end-to-end statutory sequence: preliminary load application, single-line diagram (SLD) approval, physical safety inspection, dual-metering synchronization, and formal commercial commissioning.

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