Direct answer
Punjab industry installs rooftop solar under the PSERC Grid Interactive Rooftop Solar Regulations, 2021, as liberalised by the Third Amendment of April 2026. Net metering is available up to 500 kWp (within sanctioned load/contract demand); above that, net billing or gross metering apply. Applications up to 10 kW are deemed accepted, feasibility studies must finish in 15 days, and commissioning must follow within 15 days of the installation certificate.
| Punjab at a glance (2026) | Rule |
|---|---|
| Governing regulation | PSERC Rooftop Solar Regulations 2021 + 3 amendments (2024-2026) |
| Net metering cap | 500 kWp, within sanctioned load/contract demand |
| Group/Virtual net metering | GNM 5-500 kWp (same-category); VNM 5-500 kWp (domestic) |
| Surplus compensation | 75% of approved feed-in tariff, paid within 30 days |
| Agreement tenure | Up to 25 years |
| Industrial energy charge | ~₹5.84-7.04/kVAh depending on category and slab |
The 2026 amendment changed the economics
PSERC's Third Amendment (notified 7 April 2026, with GNM/VNM effective 1 July 2026) fixed the biggest complaints industrial buyers had with the 2021 framework (Power Peak Digest summary, Apr 2026):
- Net metering capacity is now the sanctioned load/contract demand, capped at 500 kWp - replacing the old 80%-of-sanctioned-load and 90%-of-consumption ceilings that MNRE had flagged as restrictive (Mercom India, Feb 2026).
- Unadjusted year-end credits are compensated at 75% of the approved feed-in tariff, with payment due within 30 days (delay attracts SBI one-year MCLR interest).
- Group Net Metering (5 kWp-500 kWp, same consumer category across connections) and Virtual Net Metering (5-500 kWp, domestic category) were introduced.
- RESCO and third-party ownership are explicitly allowed, with no tripartite agreement required.
- Earlier amendments (2024-25) set the settlement period as October-September with a special April-March window for seasonal industries (rice shellers, cotton ginning, kinnow grading), and codified 15-day feasibility and commissioning timelines (PSERC 1st Amendment, Mar 2024).
PSPCL has also petitioned (July 2026) to replace physical net-metering agreements with digitally signed agreements through the PM Surya Ghar portal, following Commercial Circular No. 26/2026 (Solar Quarter, Jul 2026).
PSPCL tariffs: what solar displaces
PSERC's FY 2025-26 tariff order (28 March 2025) held overall tariffs flat and cut industrial fixed charges - ₹210/kVA for the 100-1000 kVA slab (from ₹220) and ₹280/kVA at 1000 kVA and above (Times of India, Mar 2025). Reference energy charges from the operating schedule: large-supply power-intensive units ₹6.64-7.04/kVAh by slab, commercial HT ₹6.78/kVAh, commercial LT ₹7.01/kVAh (PSPCL FY 2024-25 schedule, carried into FY 2025-26 with energy charges unchanged). A special night tariff (22:00-06:00) offers 50% fixed-charge relief plus ₹5.50/kVAh for industries that can shift load.
Against these rates, rooftop solar at a levelised ₹2.5-3/kWh saves 55-65% per unit - and Punjab's 300+ sunny days support yields of 1,400-1,500 kWh per kWp (see our units-per-kW guide for North India).
Application process and timeline
- Apply online through the PSPCL portal with the latest bill, load details and system design.
- Feasibility study within 15 days; applications up to 10 kW are deemed accepted (the DISCOM executes any load enhancement itself).
- Install via an ALMM-listed vendor; obtain the installation certificate.
- PSPCL installs and seals the bidirectional meter and commissions the system within 15 days of the certificate; the connection agreement runs up to 25 years.
Systems above roughly 10 kW also need CEIG electrical-inspector approval - the process is covered in our CEIG approval guide. Punjab offers no state capital subsidy for C&I solar (PM Surya Ghar is residential-only), but tax-side benefits apply nationally - see our accelerated depreciation guide.
Where Punjab industry is installing
Ludhiana (hosiery, hand tools), Jalandhar (sports goods, leather), the Mohali-Rajpura belt (IT, pharma) and Bathinda (agro-processing, fertilizers) anchor industrial demand. Seasonal agro-units benefit most from the April-March settlement window - a rice sheller running October to March can size solar to its winter load and still receive 75% compensation for summer surplus instead of forfeiting it.
Frequently Asked Questions
What is the net metering cap for commercial and industrial consumers in Punjab?
500 kWp under the PSERC Third Amendment 2026, limited further by the consumer's sanctioned load or contract demand. Larger systems can still be installed under net billing or gross metering, which have no 500 kWp ceiling.
What happens to unused solar credits at year-end in Punjab?
Unadjusted energy left at the end of the settlement period (October-September, or April-March for seasonal industries) is paid out at 75% of the approved feed-in tariff within 30 days. The 2026 amendment made this compensation mandatory with MCLR-linked delay interest.
Can a Punjab factory install solar bigger than its sanctioned load?
No - net-metered capacity cannot exceed sanctioned load/contract demand (capped at 500 kWp). Load enhancement runs through PSPCL alongside the solar application; since the 2024 amendment, load enhancement for systems up to 10 kW is executed by the DISCOM under the Supply Code.
Is there a Punjab state subsidy for industrial solar?
No state capital subsidy exists for commercial and industrial rooftop solar in Punjab; PM Surya Ghar CFA is residential-only. Industrial buyers recover cost through 40% accelerated depreciation, 5% GST on solar devices with input credit, and avoided HT tariffs. State-level support (PEDA-administered exemptions for stamp duty and electricity duty during construction) applies mainly to larger renewable projects.
How long does PSPCL net metering approval take?
Statutorily: feasibility within 15 days (deemed acceptance up to 10 kW), and commissioning within 15 days of the installation certificate. Realistic end-to-end time for a 100-500 kW industrial system, including installation, is 8-14 weeks.
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