01
Annual EBITDA
Gross annual revenue − annual operating costRepresents operating surplus before interest, tax, depreciation, amortization, and major capital replacements.
ROI and payback calculator
CBG Plant ROI and Payback Calculator
Test how project cost, annual revenue, operating expense, and capital assistance affect a CBG plant's EBITDA, simple ROI, payback period, and operating margin.
Free to useNo sign-upInstant results
Project economics inputs
Enter your own capex, revenue, and operating-cost assumptions.
Total project cost₹30 Cr
₹1 Cr₹100 Cr
Gross annual revenue₹14.85 Cr
₹0 Cr₹50 Cr
Annual operating cost₹9.5 Cr
₹0 Cr₹40 Cr
Confirmed capital assistance₹0 Cr
₹0 Cr₹30 Cr
Simple project return model
Simple annual ROI
17.8%
Simple payback
5.6 years
Annual EBITDA
₹5.35 Cr
EBITDA margin
36.0%
Net investment basis
₹30.00 Cr
5-year operating surplus
₹26.75 Cr
This is a simple pre-tax EBITDA model. It excludes debt service, depreciation, working capital, construction delay, ramp-up, major replacements, tax, and the timing of any assistance. Use it for early screening, not a final investment decision.
Calculation method
How CBG ROI and payback are calculated
This early-stage model uses the assumptions you enter. It is designed to compare scenarios quickly before developing a complete project cash-flow model.
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Simple ROI
Annual EBITDA ÷ net investment × 100Net investment is total project cost less the confirmed capital assistance entered by the user.
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Simple payback
Net investment ÷ annual EBITDAShows the number of years of constant EBITDA needed to recover the investment basis.
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EBITDA margin
Annual EBITDA ÷ gross annual revenue × 100Indicates how much gross revenue remains after the annual operating-cost assumption.
Common questions
Calculator FAQs
What is a good ROI for a CBG plant?
A suitable return depends on project risk, debt, feedstock security, offtake, ramp-up, policy support, and investor expectations. Compare multiple scenarios rather than relying on one headline ROI.
Does this ROI include bank interest and tax?
No. The calculator uses a simple EBITDA-based return. Interest, principal repayment, depreciation, tax, working capital, replacements, and construction timing require a full financial model.
Should subsidy be included in project ROI?
Only enter capital assistance that is confirmed and expected to be received. Compare a second scenario with assistance set to zero to understand downside exposure.
Why is my payback showing no result?
If annual operating cost is equal to or greater than annual revenue, EBITDA is zero or negative and the simple model has no positive payback period.
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