Net metering acts as a virtual electricity bank with your utility company. During bright daytime hours, when your rooftop solar generates more power than your home consumes, surplus kWh automatically flows into the SBPDCL or NBPDCL grid. At night, when you draw power back, you only pay for Net Import = Grid Import minus Solar Export plus minimum fixed monthly meter charges.
Important Sanctioned Load Rule in Bihar
Generally, your proposed solar capacity should not exceed your sanctioned electricity load (for example, to install a 3 kW solar plant, ensure your CA number has at least a 3 kW sanctioned load; load enhancement can also be submitted online on the Suvidha / DISCOM portal beforehand).
Request a Bihar Rooftop Solar Site Survey
Planning a residential PM Surya Ghar system or commercial solar plant in Patna, Gaya, Muzaffarpur, Darbhanga, Bhagalpur, or anywhere across Bihar? Talk directly with SRISHTI SOLAR ENERGY (Mithapur HQ, Patna) at +91 8235441292 or request a custom quotation online.
Get Solar QuoteIllustrative Solar CalculatorCommon Questions & Direct Answers
Published by Ritesh Kumar
Reviewed for factual solar and PM Surya Ghar accuracy by SRISHTI SOLAR ENERGY — Patna, Bihar & Dankuni, West Bengal. Last updated November 13, 2026.
Always confirm current DISCOM rules, subsidy eligibility, component availability, and written terms directly prior to installation.
