Why 3 kW hits the Jaipur sweet spot
**Bill coverage** — A 3 kW system in Jaipur generates ~450 units/month (300 sunny days × 5.5 PSH × 3 kW × 82% derate). That covers a ~₹3,500-₹4,000 JVVNL summer bill fully.
**Subsidy maximisation** — The central PM Surya Ghar subsidy caps at ₹78,000 for 3+ kW systems. Going below 3 kW leaves subsidy on the table; going above 3 kW adds cost without extra central subsidy.
**JVVNL single-phase compatibility** — 3 kW fits within standard single-phase 5-kW sanctioned load, so you don't need to upgrade to three-phase (which costs ₹15,000+ extra).
**Roof-space fit** — 3 kW = ~300 sq ft of shadow-free south-facing roof. Fits the typical Jaipur 30×50 or 25×60 plot.