Industrial solar savings calculator

Estimate your factory's solar savings, payback period, and 25-year returns — based on your actual EB bill and Tamil Nadu tariff rates.

Your factory details
Your estimated savings
Recommended system size
based on roof & consumption
Solar rate vs grid
Monthly bill reduction
Simple payback
Current monthly bill
With solar (blended)
Cumulative savings over time
MilestoneAnnual savingProgressCumulative total
Assumes 3% annual TANGEDCO tariff escalation · 0.5%/yr solar panel degradation · PPA tariff fixed or escalating at 1%/yr · Captive/group captive figures exclude open access wheeling & banking charges (typically ₹1.50–2.00/unit). Indicative only — actual savings depend on sanctioned load, contract structure, site conditions, and TNERC policy. Consult NST for a detailed project-specific assessment.

Get a detailed savings report for your factory

Free site assessment · No upfront commitment · Chennai-based team

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