LandGEM Decline Curve
EPA-calibrated Y1→Y20 methane trajectory. CAA Conventional, Inventory Wet, or custom k & L₀ — drives every downstream number.
Financial-grade feasibility
Stranded Gas to Hash
modeled like a real energy project.
20-year LandGEM decline curves. Discounted cashflows. IRR, payback, NPV, and lifetime tCO₂e — for landfill, flare, biogas, and coal mine methane. No login, no spreadsheet, no consultant.
- 20-yr DCF
- LandGEM decline-aware NPV
- IRR + Payback
- Simple & discounted
- GWP-20 / 100
- Emissions framework
- Lifetime Totals
- tCO₂e · BTC · USD
Inside the engine
Built for operators who underwrite, not guess.
Four analytical layers stack into a single picture of project economics — from methane in the ground to NPV on the page.
Year-by-year DCF
Discounted mining + carbon revenue per year. Sparkline and breakdown table show exactly how each year contributes to NPV.
IRR & Payback
Project IRR plus simple and discounted payback against your capex + opex assumptions. Hurdle-rate color coding built in.
Lifetime Totals
Cumulative tCO₂e abated, BTC mined, and gross revenue across 20 years. Toggle between undiscounted lifetime and NPV views.
Pick your feedstock
Four gas sources. One engine.
Each calculator ships with source-specific defaults — flow ranges, contaminant profiles, capex multipliers, and feasibility thresholds tuned to the feedstock.
LFG → Hash
Landfill Gas
Convert wellhead landfill gas into Bitcoin. Model net kW, hashrate, methane abatement, and deal economics — all in your browser.
- Typical CH₄
- 50%
- Default flow
- 500 scfm
- Min viable
- 30 kW
Open Landfill Gas calculator
Flare → Hash
Flare Gas (APG)
Capture associated petroleum gas at the wellpad before it's flared. Model net kW, hashrate, GHG abatement (Subpart W), and operator-deal economics.
- Typical CH₄
- 75%
- Default flow
- 800 scfm
- Min viable
- 40 kW
Open Flare Gas (APG) calculator
Biogas → Hash
Biogas (Dairy / WWTP)
Model anaerobic digester biogas — dairy, WWTP, food waste — as a Bitcoin mining feedstock instead of (or alongside) RNG upgrade.
- Typical CH₄
- 60%
- Default flow
- 250 scfm
- Min viable
- 25 kW
Open Biogas (Dairy / WWTP) calculator
CMM → Hash
Coal Mine Methane
Capture methane drained from active or abandoned coal mines (CMM/AMM/VAM-adjacent) and convert it to mining instead of venting.
- Typical CH₄
- 40%
- Default flow
- 600 scfm
- Min viable
- 35 kW
Open Coal Mine Methane calculator
How it flows
Gas spec → Power → Revenue → Deal.
Every tab feeds the next. Change the methane percentage, watch IRR move — no copy-paste between sheets, no broken formulas.
Gas spec → Power
Flow + CH₄% becomes derated net kW with altitude, temperature, and parasitic loads modeled.
Power → Emissions
Vent vs. flare vs. mine on tCO₂e/yr — GWP-20/100 toggle and proof-of-impact summary.
Emissions → Revenue
Year-aware Monte-Carlo with seasonality, downtime, BTC scenarios, and LandGEM decline.
Revenue → Deal
IRR and payback feed four deal templates with payouts, performance clauses, and risk allocation.
Ready to run your numbers?
No login. No data leaves your browser. Beta v0.9 — built for operators, miners, and capital partners modeling real sites.