The government just told restaurants to stop cooking. Here is a calculator that shows them what to do instead.
Panels: ₹75K (falling 10%/yr). Installation: ₹75K (fixed). Induction stove: ₹2K.
How it works: PM Surya Ghar already gives ₹78,000 toward a 3kW solar system. Add a ₹10,000 top-up from redirected LPG money + a free ₹2,000 induction stove. Household takes a priority loan for the remaining ₹62,000. Monthly EMI: ~₹1,200. Monthly savings: ~₹3,250. Cash-positive from Day 1.
The sun has no foreign policy. No sanctions. No straits. Every kWh on an Indian rooftop is a kWh no foreign government can weaponize.
LPG: 31.3 MT/yr. Imports 19.3 MT (62%). Domestic maxed 12.8 MT. 330M connections. ~95 kg/HH/yr. Source: MoPNG, PPAC, Down To Earth (Mar 2026).
Price model: LPG scales with crude at 7.08x ($113/bbl=$800/t). Cylinder 913 INR at $113. Subsidy: 12K cr Ujjwala + 30K cr OMC = 42K cr. Source: IANS, Lok Sabha (Mar 2026).
Solar system: Panels: 75K INR for 3kW (25 INR/W, zero tariff). Installation/BOS: 75K INR (inverter, mount, wiring, labor - constant). +1,125 INR/% tariff on panels only. PM Surya Ghar subsidy: 78K INR for 3kW (existing). Panel learning rate: ~10-15%/yr decline (slider). Global module prices fell from 200 INR/W (2010) to 9-15 INR/W (2024). Sources: IRENA, Bluebird Solar, Down To Earth, Our World In Data.
Induction: 2K INR single-burner.
Generation: 4,500 kWh/yr per 3kW. Cooking: 850 kWh/yr. Non-cooking HH: 1,500 kWh/yr. Grid: 9 INR/kWh blended residential.
Efficiency: Gas 35%. Induction 85%.
Restaurants: $85B market, 8.5M employees. Source: NRAI 2024, Mordor Intelligence.
Panel cost trajectory: At 10%/yr decline, 3kW panel cost goes from 75K (yr 0) to 67.5K (yr 1) to 44K (yr 5) to 26K (yr 10). Installation stays at 75K. Total system: 152K (yr 0) to 103K (yr 10). At 15%/yr: 93K by yr 5.
Loan assumption: 5-yr priority loan at 8% for household portion after subsidies. EMI calculated on remaining balance.
FX: 84 INR/USD.