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You askedOn-grid vs off-grid
SolarAgent assistantAn on-grid system connects through a bidirectional net meter and needs no battery, so it costs the least. Under the Net Metering Guideline 2025 any customer, single- or three-phase, can install up to 100% of the sanctioned load. Exports offset your imports each month; leftover credit is paid in the settlement months at the bulk tariff (Tk 8.39/kWh) after the utility keeps 10%. It switches off during outages for safety (anti-islanding). The planner shows your payback using your actual tariff slab.