Comparison Tool

Compare Renewable
Models & States Side-by-Side

Select two renewable investment models or two Indian states to compare ROI metrics, cash flows, policies, and incentives — all in one view.

CAPEX vs OPEX vs Group Captive vs Open Access

Option A

Option B

Shared Assumptions

Monthly Electricity Bill₹5.0L
Plant Capacity500 kW
Current Grid Tariff9 ₹/unit
Grid Tariff Escalation8%/yr
Corporate Tax Rate25%
Discount Rate (WACC)12%

Rooftop Solar (CAPEX)

vs

Group Captive Wind

₹2.60 Cr

Total Investment

₹90.0 L

Better ✓

5 yrs

Payback Period

2 yrs

Better ✓

7%

IRR

56%

Better ✓

₹-1.04 Cr

10-yr NPV

₹4.37 Cr

Better ✓

₹6.77 Cr

10-yr Savings

₹11.78 Cr

Better ✓

₹61.1 L

Better ✓

Tax Dep. Benefit

₹15.4 L

Annual Net Savings Comparison

12345678910Year050L1.0Cr1.5Cr2.0Cr
  • Rooftop Solar (CAPEX)
  • Group Captive Wind

Cumulative Cash Flow (10-yr)

12345678910-4.0Cr04.0Cr8.0Cr12.0Cr
  • Rooftop Solar (CAPEX)
  • Group Captive Wind

Option A

Rooftop Solar (CAPEX)

You own the plant. Maximum long-term ROI with accelerated depreciation benefit.

Est. investment: ₹2.60 Cr

Option B

Group Captive Wind

Co-own a wind plant (26%+ equity). Lowest long-term per-unit cost.

Est. investment: ₹90.0 L

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