This is an estimate, not an installer quote or DISCOM design approval. Results use your inputs and the cited FY 2026–27 TGSPDCL residential tariff reference. We exclude export payments, FSA/FCA, electricity duty, and any subsidy from the payback calculation. If you receive or may receive Gruha Jyothi, tariff savings are suppressed because that interaction is not modeled.
Scenario status
Enter your use and an installer proposal
The estimate needs monthly units, sanctioned load, proposed DC capacity, installer-estimated generation and gross price.
- No local solar yield or market price is substituted.
- Export credits and unverified eligibility are not assumed.
- Annual home use
- Annual generation from proposal
- Energy-balance sizing reference
- Quoted system capacity
- Modeled monthly tariff components before
- Modeled monthly tariff components after
- Estimated monthly tariff-component reduction
- Annualized tariff-component reduction
- Gross installer quote (user-entered)
- Indicative payback ratio (tariff reduction only, before CFA)
- Central CFA schedule reference
This is an illustrative scenario based on user-entered installer figures, not a guaranteed bill reduction, subsidy, quotation, or return.
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Method and evidence
See what this scenario includes
The calculation compares listed energy, per-kW fixed and monthly customer tariff charges before and after your estimated self-use. FSA/FCA, electricity duty, export settlement and Gruha Jyothi are not calculated. CFA is shown as a published schedule reference and is not deducted from payback.