Solar panel FAQ for Patna

A preliminary Patna planning range is about 100–130 kWh per month, but shade, tilt, temperature, losses and downtime change actual energy.

Use twelve months of kWh units and tariff, then model site generation. Bill amount alone mixes fixed charges, taxes and different rates.

Normally no. Anti-islanding shuts a standard grid-tied inverter down. Backup requires a compatible hybrid/off-grid architecture and protected-load design.

Allow roughly 90–120 ft² per kW as an early check, then perform an actual module layout including shade, setbacks and access.

It is a domestic-content condition under specified programmes, not an efficiency grade. Verify exact cells/modules and current scheme rules.

It is MNRE's approved list of PV module models and manufacturers under the applicable order. Match exact model and effective status.

Check the live PM Surya Ghar portal for current eligibility and amount. Do not deduct an old chart or verbal promise from the purchase price.

An approved meter arrangement records import and export under the applicable Bihar regulations and DISCOM process.

These describe different features. Compare certified performance, temperature coefficient, bifacial conditions, warranty, size and project economics.

Clean when soiling measurably affects output, using the manufacturer-approved safe method. Dust, tilt, rain and nearby construction affect frequency.

Performance warranties are commonly long-term, but exact product and installation warranties differ. Inverters and other components have separate life and warranty.

Review make/model, BIS/ALMM/DCR evidence where applicable, inverter compliance, SLD, structure, earthing, test records, serials and warranties.