Solar Pump Savings Calculator for Farmers
Estimate diesel savings, subsidy impact and payback for a solar water pump.
A 5 HP diesel pump running 5 hours a day for 220 days burns about 1,375 litres a year (≈ ₹1.3 lakh). A solar pump removes that fuel cost and typically pays back within 1–3 years after subsidy.
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A short call with a Solar Daily advisor turns these estimates into a firm plan.
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Diesel use is estimated at about 0.25 litre per HP-hour, multiplied by hours and days. Solar pump cost is taken as roughly ₹70,000 per HP before subsidy, and the subsidy share you enter is deducted. Payback is net cost divided by yearly diesel saving. Subsidy under PM-KUSUM and state schemes varies by year and quota.
Next: the PM-KUSUM guide.
Estimates are indicative. Confirm with an installer and your lender.
Solar Pump Savings Calculator: FAQ
How much diesel does a pump use?
Roughly 0.25 litre per HP-hour; actual use depends on engine condition and head.
Is solar pump subsidy always 60%?
No. Central and state shares vary and quotas are limited; use 0% to see the unsubsidised case.
Can I run a solar pump at night?
Pumps run in daylight; store water in a tank for later use.