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Solar Project Feasibility
Pick a typical Indian solar project — factory rooftop, captive open-access or a utility PPA — read the verdict against Indian benchmarks (₹/Wp, LCOE, payback, IRR), then fine-tune CUF, tariff, 40% WDV depreciation and debt.
Live model
Total CapExAll-in build cost including contingency and interest during construction.
₹3.98 Cr
Project IRRAnnual return of the project itself, before any financing — compare with your hurdle rate.
25.4%
Equity IRRAnnual return on your own money after loan payments — borrowing amplifies it.
50.9%
Pick a preset or set the six decisions, read the verdict — then fine-tune any assumption below. Export the full pro-forma or share a live link to this exact model.
A 1 MWp plant at ₹3.98 Cr (₹39.8/Wp) pays back in 3.8 yr at 50.9% equity IRR, LCOE ₹3.96/kWh. Full breakdown below.
Your project
Start from a typical Indian project, then adjust the six decisions that drive the whole model: how big, what each unit earns or saves, how sunny the site is, what it costs to build, and how it's funded. Everything else — O&M, tax, depreciation — has sensible Indian-market defaults you can fine-tune below.
What it costs & what it returns
Live results — every number updates instantly as you change anything, here or in the fine-tune sections below.
Building 1 MWp of solar costs ₹3.98 Cr all-in (₹39.8/Wp — within the typical ₹32–45/Wp for rooftop C&I projects). At 16% CUF it generates 14.0 lakh units a year, saving ₹1.12 Cr a year at ₹8/kWh and keeping ₹1.05 Cr as EBITDA (94% margin — solar has almost no running cost). Each unit costs ₹3.96 to produce over the plant’s life against the ₹8 it saves. The investment pays back in 3.8 yr and returns 25.4% on the project / 50.9% on equity over 25 years — creating ₹5.42 Cr of value at your 10% hurdle rate.
Bottom line: Viable at these assumptions
Total investmentEverything it takes to build — EPC, land, grid connection, contingency and interest during construction. ₹/Wp is the Indian solar cost convention (shown in ₹ even in USD mode).
₹3.98 Cr
₹39.8/Wp
Within typical ₹32–₹45/Wp
Savings / yrWhat the plant takes off your electricity bill each year (or nets after open-access charges), before running costs.
₹1.12 Cr
14.0 lakh units/yr
EBITDA / yrWhat's left of the year's earnings after O&M, insurance and land lease — before loan payments, depreciation and tax.
₹1.05 Cr
94% margin
Above typical 80–90%
PaybackYears of operation until the plant's cumulative cash covers the investment. Rooftop/captive projects typically 3–5 yr; utility PPAs 8–12 yr.
3.8 yr
Within typical 3–5 yr
Project IRRAnnual return of the project itself, before any financing — compare it to your hurdle rate.
25.4%
Equity IRRAnnual return on the money you put in yourself, after loan payments. Borrowing amplifies it — and the Sec 32 accelerated depreciation boosts it further for profitable companies.
50.9%
NPVToday's value of all future cash minus the investment, at your hurdle rate. Positive = the project creates value.
₹5.42 Cr
Peak equity neededThe deepest your own capital goes before the project starts paying it back — the cheque you must be able to write.
₹1.19 Cr
Min DSCRWorst-year cash cover on loan payments. Lenders want at least 1.2–1.3× — below 1× the plant can't pay its own EMI that year.
1.79×
Equity multipleTotal cash returned per rupee of your own money invested, over the whole horizon.
19.57×
LCOELevelized cost of energy — what each unit costs to produce over the plant's life, in today's money. ₹-native (Indian convention) even in USD mode.
₹3.96/kWh
Within typical ₹2.5–₹4/kWh
Break-even tariffThe tariff or savings rate at which the project only just breaks even — your cushion is the gap to what you actually earn.
₹3.45/kWh
Cumulative cash flow — payback
Fine-tune
Every assumption below is editable — the verdict updates live.
Generation & tariff
1.4 GWh/yr · ₹8/kWh +3%/yr · −0.5%/yr degradation
Build cost (CapEx)
Total ₹3.98 Cr all-in · ₹39.8/Wp
Running cost (OpEx)
Year-1 OpEx ₹6.99 L · 94% EBITDA margin
Financing & returns
70% debt · 10 yr loan · Project IRR 25.4% · Equity IRR 50.9%
Yield & carbon
1,402 MWh/yr · 1,402 kWh/kWp · 995 tCO₂/yr avoided
Charts
CapEx mix · payback curve · revenue vs cost · earnings trend · degradation · DSCR
Stress test
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