The only economy-wide cap-and-trade system in Canada — linked with California to form North America's largest carbon market. A hard, declining emissions cap with auction-based allowance supply, transparent price discovery, and full market-based compliance.
Quebec’s cap-and-trade system is built around a hard cap on total emissions rather than intensity-based limits tied to production. Each year, the government sets an economy-wide cap and issues a fixed number of emission allowances, each representing one tonne of CO₂e. Covered entities must surrender allowances equal to their verified emissions.
Because fuel suppliers are covered upstream, carbon costs are embedded broadly across the economy — not only at large industrial facilities. This makes Quebec’s system closer in scope to a traditional economy-wide carbon market than to an industrial compliance regime.
The system is formally linked with California’s cap-and-trade program under the Western Climate Initiative (WCI). Allowances issued by either jurisdiction are mutually recognised for compliance — expanding market size, increasing liquidity, and reducing price volatility.
No other Canadian carbon market has international linkage. OBPS systems in Alberta, British Columbia, and federally remain jurisdiction-specific and administratively bounded.
Quebec’s cap-and-trade covers three broad categories of emitters. Because fuel suppliers are covered upstream, the system prices carbon economy-wide — not only at point of combustion.
Quebec’s cap-and-trade system is designed to balance environmental ambition with market stability and competitiveness. The auction-based model with floor pricing and international linkage creates a transparent, liquid compliance market.
The cap falls annually toward 37.5% below 1990 levels by 2030 and net-zero by 2050. The declining cap is the primary driver of scarcity — as available allowances shrink, prices reflect the true cost of decarbonisation.
Most allowances are distributed through government-run joint auctions with California. A portion is allocated freely to emissions-intensive, trade-exposed (EITE) sectors to address competitiveness concerns.
The floor price increases annually, providing investment certainty and preventing price collapse. Unsold allowances can be withheld from auction, reinforcing scarcity and maintaining long-term price signals.
Formal linkage with California under WCI creates mutual recognition of allowances. This expands market size and liquidity, reduces price volatility, and aligns Quebec’s carbon price with a much larger economy.
Allowance prices are set by market fundamentals — cap stringency, economic activity, fuel demand, and abatement availability. Participants face genuine market price risk, not just regulatory price escalation as in OBPS systems.
Quebec allows offset credits within strict limits. Offset eligibility is defined through approved protocols, and usage is capped as a percentage of compliance obligation. Offsets are supplementary — the cap drives the system.
TerraNova integrates allowance market dynamics directly into emissions planning and financial decision-making — connecting emissions forecasts with allowance price scenarios, energy prices, and compliance obligations.
Track verified emissions against allowance holdings at facility and corporate level. Monitor compliance positions across both Quebec and California for linked holdings and cross-border operations.
Cross-map emissions with allowance price scenarios, EITE free allocation, energy prices, and abatement options. Adjusted MACC identifies cost-effective reduction paths across facility types and jurisdictions.
Best-fit projects evaluated on avoided allowance procurement, auction price volatility exposure, and capital efficiency under the declining cap. Finance-grade MACC aligned with 2030 and 2050 targets.
Manage free allocation entitlements, offset credit generation under approved WCI protocols, and track allowance surplus/deficit positions. Monitor EITE allocation changes and eligibility status.
5-year allowance price scenarios integrating cap trajectory (-37.5% by 2030), California linkage dynamics, and floor price evolution. Buy/bank/sell optimisation for allowance portfolios under WCI.
Track joint QC-CA auction results, floor price updates, regulatory changes, and international market shifts. Cross-reference with other Canadian markets and international systems for holistic carbon risk management.
Quebec’s formal linkage with California under WCI is unique among Canadian carbon markets. Unlike OBPS systems in Alberta, B.C., and the federal system, WCI participants trade in a cross-border allowance market with real market price discovery — requiring different compliance strategies, procurement approaches, and risk management frameworks than intensity-based systems.
Deep-dive analysis on Quebec’s cap-and-trade system, WCI linkage dynamics, and compliance strategy from our markets team.
A comprehensive guide to Quebec’s economy-wide cap-and-trade — hard cap mechanics, allowance auctions, and what sets it apart from intensity-based systems.
How the Quebec–California linkage affects allowance supply, price dynamics, and compliance strategy for Canadian covered entities.
Optimising participation in joint QC–CA auctions — floor price dynamics, secondary market signals, and long-term procurement planning.
Answers to the most common questions about the Western Climate Initiative, joint auctions, and allowance trading.
The Western Climate Initiative (WCI) cap-and-trade is a linked carbon market between Quebec and California. It sets an economy-wide hard cap on greenhouse gas emissions that declines annually. Covered entities must hold enough allowances to cover their emissions, creating a carbon price signal that incentivises decarbonisation. The two jurisdictions hold joint auctions quarterly.
Quebec and California hold quarterly joint auctions where covered entities bid for emission allowances. There is a floor price that rises annually (ensuring a minimum carbon price) and a ceiling price (cost containment). Current vintage allowances and future vintage allowances are sold separately. WCI Inc. administers the auctions and ensures market integrity.
Washington launched its own cap-and-invest program (Climate Commitment Act) and has been exploring linkage with the WCI system. Full linkage would create North America's largest carbon market spanning three jurisdictions. The process involves regulatory alignment and formal agreements between jurisdictions.
WCI allowance prices are determined by auction results and secondary market trading. The floor price rises annually and provides price certainty for long-term planning. Auction settlement prices typically trade above the floor. The secondary market allows entities to trade allowances between auctions, providing liquidity and price discovery.
Climate Decode's TerraNova platform helps covered entities navigate WCI cap-and-trade: emission reporting and MRV, auction strategy, allowance portfolio management, offset credit integration, and compliance cost optimisation. The platform models different compliance scenarios across auction purchases, secondary market trades, and offset usage.
See how TerraNova delivers finance-grade WCI intelligence — from allowance price scenarios and auction strategy to decarb planning under a hard, declining emissions cap.