capital cost (capex)
Also known as: capital expenditure · project capital cost · fixed capital
The total expenditure on fixed assets required to build a biogas or recycling plant — identical in concept to CAPEX, covering civil construction, process equipment, and installation before operations
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What is capital cost?
Capital cost is the total upfront expenditure required to design, build, and commission a fixed-asset facility before commercial operations begin. It is conceptually identical to CAPEX (Capital Expenditure) as used in financial reporting, and covers all costs from land development through to performance-tested handover. Capital cost is distinct from operating cost (OPEX), which represents the recurring expenses of running the facility. In project finance, capital cost determines the equity-and-debt funding requirement, drives depreciation schedules, and anchors return calculations such as Internal Rate of Return (IRR), Net Present Value (NPV), and payback period.
For Indian CBG and recycling plants, capital cost typically breaks down into six heads. Civil and structural works (foundations, RCC digesters, sheds, roads, internal piping) account for roughly 25–35% of total project cost. Process equipment (digesters, upgrading skids, shredders, compressors) is the largest single block at 30–45%. Electrical and instrumentation (transformers, MCCs, PLCs, SCADA) contributes 8–12%. Site development and utilities (water, power connection, drainage, security) is 5–8%. Pre-operative expenses (project management, consultants, IDC, financing fees) typically add 8–12%. Contingency at 5–10% is standard for first-time developers.
Indian CBG plant indicative ranges, based on SATAT submissions, sit at roughly Rs 12–18 crore for a 4 tonne-per-day plant, Rs 25–40 crore for 10 TPD, and Rs 60–90 crore for utility-scale 25 TPD facilities. E-waste plants are far less capital-intensive — Rs 3–8 crore for a 1,000 TPA dismantling and pre-processing facility — but tyre pyrolysis and downstream metallurgy can exceed Rs 50 crore. Government support through CBG-CFA capital subsidies (up to Rs 4 crore per plant under MNRE), MSME Champions Scheme, and state-level renewable energy policies can offset 20–40% of capital cost, fundamentally changing project viability. Underestimating capital cost is the most common cause of stalled or abandoned projects in the sector.
Common questions about capital cost
Plain-English answers to what people most often ask.
What is the difference between capital cost and working capital?
How is capital cost different from total project cost?
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