Your customer now has to approve your agreement before you install
MNRE has put the vendor-consumer agreement through the PM Surya Ghar portal for consumer approval, with the full installed cost entered and matched to your quote.
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One ohm, and the fire that starts in a connector
Earthing is the one thing every DISCOM inspector physically checks, and loose DC connectors are how rooftop systems catch fire. The practice that prevents both.
TOPCon, bifacial, and what actually belongs on a rooftop
TOPCon has taken over Indian rooftop supply and bifacial is sold with it. One of those choices is usually right and the other usually is not, on a house roof.
Why the system generates less than you promised
Nine reasons an estimate and a meter disagree, how to tell which one is at fault, and what to put in writing so the conversation never becomes an argument.
State top-ups: UP pays Rs 15,000 per kW. Verify yours before quoting
State subsidies stack on top of PM Surya Ghar and change the price a customer sees. They also get repeated wrongly online. How to check one before you promise it.
Stringing rules of thumb that stop working on Indian rooftops
String length is decided by the coldest morning, not the hottest afternoon. The voltage arithmetic, the MPPT rules, and the mistakes that show up in year two.
When the DISCOM says no: reading a feasibility rejection
Rejections rarely explain themselves. The five reasons behind most of them, which are fixable, which are genuinely final, and what to tell the customer.
Dust costs more than most EPCs think, and cleaning costs less
Soiling runs from about 6 percent on the coast to 15 percent in arid zones. The arithmetic of cleaning frequency, and who should be doing it after handover.
Net metering, net billing or gross metering: which applies?
Three mechanisms, three very different paybacks, and customers who use the words interchangeably. How to tell them apart before you build a savings table.