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Browse resourcesPractical solar guidance for Indian homes
Clear explanations, engineering-minded checks, calculators and buying guidance for rooftop-solar decisions you can understand and verify.
- Homeowner-focused explanations
- Practical design and cost tools
- Independent, technically informed guidance
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Rooftop solar design
Estimate system size and run practical design checks.
Open calculatorSolar ROI and payback
Estimate savings, payback, IRR and NPV for India.
Open calculatorCar ownership cost
Compare long-term ownership costs across vehicle options.
Open comparison tool