⬡ SubsurfaceAI · CCUS Compass
The Intelligence Layer
for CCS/CCUS
Purpose-built tools for CCUS engineers, regulators, and investors. Regulatory intelligence, financial modelling, and subsurface engineering — in one platform.
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Free tier: 3 AI questions/day. Sign in for session history. Upgrade to Pro for unlimited access. Or add your own Anthropic API key at console.anthropic.com for unlimited BYOK usage.
400+
CCUS projects tracked globally
$85/$180
45Q $/t (point-source / DAC)
175+
EPA Class VI apps pending
508
NATCARB saline polygons mapped
Who It's For
Choose your workspace
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Engineer
Subsurface design & injection engineering
CO₂ Phase & Properties Calculator
Injection Well Pressure Design
Plume Footprint Estimator
Site Characterization Checklist
Material Compatibility Table
Open workspace →
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Regulator
Permit review & compliance assurance
Permit Completeness Checker (§146.82–95)
Financial Assurance Calculator
MRV Plan Coverage (Subpart RR)
50-yr PISC Monitoring Scheduler
Open workspace →
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Investor
Project finance & technology risk
45Q Credit Modeler (12-yr NPV)
LCOC Estimator by Technology
Project Finance DCF (IRR/DSCR)
Credit Stacking Optimizer
Technology Risk Scorecard
Open workspace →
Built-In Tools
14 interactive tools across 3 workspaces
Engineer Tools
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Phase & Properties
T+P → CO₂ phase state, density, critical-point logic
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Injection Pressure
BHP / WHP design, §146.88 fracture pressure limits
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Plume Estimator
Mass-balance radii at 1/5/10/25/50 yr horizons
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Site Checklist
30 items across 6 §146.82 + AER D-065 categories
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Material Compat.
10 materials × dry/wet/SC CO₂ compatibility table
Regulator Tools
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Permit Checker
57-item completeness check, §144.31 / §146.82–95
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Financial Assurance
Plugging cost + PISC NPV + emergency reserve calc
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MRV Coverage
Subpart RR §98.443–448 plan gap checker
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PISC Scheduler
50-yr 4-phase monitoring schedule from cessation
Investor Tools
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45Q Modeler
12-yr NPV, PWA toggle, policy risk scenarios
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LCOC Estimator
7 technologies, CRF formula, 45Q viability check
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Project Finance DCF
IRR (bisection), DSCR, breakeven 45Q price
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Credit Stack
US/Alberta/BC/EU compatibility matrix
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Tech Risk Score
TRL-based, 6 dimensions, side-by-side compare
Platform
Everything in one place
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AI Advisor
Claude-powered CCUS intelligence — ask anything about regulations, engineering, or project economics.
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Saline Geo-Map
NATCARB saline aquifer map — 508 polygons, CO₂ storage capacity, reservoir properties.
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Reg Tracker
Live EPA Federal Register feed — stay current on Class VI rule changes and policy shifts.
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Regulatory Hub
Deep-dive jurisdiction guides — EPA Class VI, AER D-065, EU CCS Directive, ISO 27914.
Regulatory Coverage
EPA Class VI (UIC)
AER D-065 / D-051
EU CCS Directive
ISO 27914
Alberta TIER
PHMSA CO₂ Pipeline
40 CFR Subpart RR
State Primacy (ND · WY · LA · WV · AZ · TX)
Developed by Tahir Chisti · P.Eng · MASc · Data: NATCARB / DOE-NETL / EPA / AER / CSA / ISO
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