Punjab's September power cuts: solar sign-ups did not move
Punjab lived through two weeks of power cuts in September, yet new rooftop solar applications stayed close to 50 a day. A standard on-grid system switches off when the grid does, so it was never the answer to a cut.
What happenedPunjab's power cuts and peak demand, September 2026
In the first half of September, Punjab ran short of power in the middle of the paddy season. Swarajya reported on 23 Sep that on 5 Sep industry across the state faced cuts of “six to eight hours a day”, and that farmers got two to three hours of the eight hours of tubewell supply promised. In-state plants were producing roughly 4,200 to 4,900 MW, with the rest drawn from the northern grid.
PTI, in a report carried by The Pioneer on 14 Sep, quoted the state's power minister: September demand had touched 16,600 MW, against about 13,100 MW in earlier Septembers. That is roughly 3,500 MW of extra load. The government said no cuts had been imposed since 7 am on 13 Sep, and an industry body told ANI on 16 Sep that supply had been steady for two or three days.
What our tracker showsPunjab rooftop solar applications a day, Aug to Oct 2026
We read the national PM Surya Ghar portal every day, and our Punjab readings run from 29 Aug. We split them at the 13 Sep reading, the day the cuts were reported to have ended.
From the 29 Aug reading to the 13 Sep reading (15 days, the cut weeks), Punjab added 815 new applications, about 54 a day, and 643 new rooftops, about 43 a day. From 13 Sep to the 10 Oct reading (27 days), it added 1,337 applications, about 50 a day, and 1,233 rooftops, about 46 a day. Applications were no higher during the cuts than after them. If anything, they eased a little.
Next door, Haryana's applications ran at about 640 a day in the first window and about 650 in the second. Neither state shows a jump that lines up with the cuts.
Our readings begin on 29 Aug, after the shortfall had started, so there is no clean “before” window. And applications can lag a decision by weeks, though the 27 days after the cuts show no late rise either.
Rounded. Computed from Solentra's daily readings of the national PM Surya Ghar portal: 815 applications in 15 days, then 1,337 in 27 days.
See the numbers
| Period | applications a day |
|---|---|
| During the cuts (29 Aug to 13 Sep readings) | 54 |
| After (13 Sep to 10 Oct readings) | 50 |
What it could mean for IndiaDoes on-grid solar work during a power cut?
A flat counter during a power crisis fits how these systems are built. A standard on-grid rooftop is designed to cut the electricity bill, not to keep the lights on. When the grid fails, its inverter stops feeding power, even in full sun. This is a safety rule: it stops thousands of rooftops from charging a line that workers believe is dead. So when people want protection from cuts, that demand may show up where the portal does not look: inverter-battery sets and diesel generators.
All of Punjab's PM Surya Ghar rooftops add up to about 94 MW of panels on the 10 Oct reading. September's extra demand was about 3,500 MW, at the height of the paddy season. Home rooftops at this scale could ease daytime feeders a little, but they cannot close a gap of that size. Solar for farm pumps and feeders sits under a separate scheme, PM-KUSUM, which may matter more for paddy-season peaks.
The bigger shift may be about timing. Solar produces most at midday, while a stressed grid often struggles most in the evening. Rooftops paired with a few hours of battery could move some daytime solar into those hours and keep chosen loads running when the grid trips. With India's rooftop count now past 51 lakh, the useful question for supply-stressed states could move from how many rooftops there are to how many can also hold power for a few hours. That would need more hybrid designs and clear DISCOM guidance on how they connect. One season in one state proves nothing alone, but it does suggest that cuts and plain on-grid solar answer two different problems.
What it means for youHybrid inverter and battery backup for power cuts
If you are a homeowner worried about cuts: a plain on-grid system will not run your house during a cut. It switches off when the grid does. It lowers your bill, which is its job. For backup you need a battery, either with a hybrid inverter or in an all-in-one unit that holds the inverter and battery in one cabinet. Pick the loads you want running, such as fans, lights, the fridge and the Wi-Fi router, and size the battery for the cuts you actually see. If you already own an inverter-battery set, tell your installer so the two are planned together.
If you are an installer or dealer: treat “we had cuts” as a question. Ask what the customer wants running and for how long, then quote the on-grid system and the battery option side by side. Never let a customer believe an on-grid system gives backup; that promise turns into a complaint during the next cut.
If you run a shop or factory: if September's cuts cost you working hours, a commercial battery system is a separate conversation. Our BESS page, Powered by UnityESS, covers it. You can follow Punjab's daily numbers on our tracker.
Sources
- Swarajya, Punjab Power Crisis Amid Peak Paddy Season: How State Stopped Making Its Own Electricity, .
- The Pioneer (PTI), Punjab transfers PSPCL chief during power crisis, .
- ANI via webindia123, Punjab: Akali Dal stages massive protest outside 'Shakti Sadan' in Jalandhar over unscheduled power cuts, .
- Manipur Renewable Energy Development Agency (MANIREDA), FAQs on Grid Connected Solar Rooftop System, .
- MNRE, National Portal for Rooftop Solar, PM Surya Ghar national portal, read daily by Solentra since 29 Aug 2026, .
The Solar Brief puts public reports in our own words and reads them against Solentra's own daily record of the PM Surya Ghar national portal. Where we say what something could mean, that is our reading, not a forecast. Nothing here is financial, loan or legal advice.
More from the Solar Brief
Message us on WhatsApp.