The CCS Project That Passed Every Test Except the Investment Test

The Edmonton-based carbon capture project, proposed by Heidelberg Materials, seemed to possess all the necessary elements for success in the eyes of policymakers. The ambitious project aimed to capture one million tonnes of CO2 annually from cement production, a challenging industry where emissions largely stem from the manufacturing of clinker instead of fuel combustion.

A pilot test confirmed the feasibility of carbon capture, and both the Canadian government and Alberta provided substantial support. A pipeline and storage location had been identified, and Alberta was already implementing a carbon pricing system. The project was expected to become the first full-scale carbon capture installation in North America at a cement plant.

However, the project is now on hold, highlighting that technology readiness and policy support do not guarantee investment readiness. While the project could technically capture carbon, it struggled to generate predictable revenue. Heidelberg and the Canadian government announced their partnership in 2023, with an estimated cost of CAD 1.36 billion.

The plan included a combined heat and power system to reduce the energy penalty, and a pipeline to transport captured CO2 to the Open Access Wabamun Carbon Hub near Edmonton. The design study and pilot demonstrated the site's potential to capture over one million tonnes of CO2 annually. Public support was strong, and Ottawa committed to providing up to CAD 275 million in direct project funding, including an initial CAD 49 million agreement.

The Canadian government's refundable CCUS investment tax credit could cover 50% of eligible conventional capture equipment, with 37.5% available for eligible transport and storage equipment.

Despite these promising elements, the project ultimately failed due to insufficient investment readiness. Heidelberg had initially considered a policy trajectory of CAD 170 per tonne by 2030, but the headline industrial carbon price in Alberta was CAD 95 in 2026 and was projected to reach CAD 115 by 2030. Tradable compliance credits were reported to have changed hands for only CAD 4,045 per tonne.

Given these valuation factors, Heidelberg concluded that proceeding with the project would not be a responsible use of shareholder capital. The pilot test proved that capture technology worked effectively, but the financial model did not support continued investment. The fundamental distinction between carbon price and carbon revenue was crucial to understand.

The headline carbon price represents a theoretical payment for emissions, while a project's investable revenue depends on the actual earnings or avoidance of captured CO2 over decades. Various factors, including performance benchmarks, free allocations, credit banking, alternative compliance options, and shifting regulations, can cause the effective value to fall below the statutory price.

Moreover, the uncertainty surrounding the project's financial future, several years away, made the projected 2040 carbon price less dependable than the current price. Consequently, rational investors were reluctant to model the government's future aspirations as guaranteed cash flow, discounting the value for political, regulatory, and market risks.

Similarly, capital subsidies initially reduce the initial investment cost but do not eliminate the ongoing operating costs associated with running a capture facility. These costs include energy consumption, solvents, maintenance, labor, compression, pipeline capacity, injection, monitoring, and long-term storage. Therefore, a one-time subsidy can lower the initial expense but may leave the plant uneconomical to operate.

In contrast, Norway's Brevik cement plant successfully implemented carbon capture technology as part of the world's first full-scale carbon capture facility. Designed to capture 400,000 tonnes annually and transport it via ship for permanent storage beneath the North Sea, Brevik's success was attributed to Norway's comprehensive risk-sharing package.

This package covered construction costs and ten years of operation, as well as assumed significant cross-chain risk and negotiated cost-sharing mechanisms. While the project's green premium added a secondary revenue source, it was not sufficient to finance capture alone. Nevertheless, Brevik's success demonstrated the importance of converting multiple correlated uncertainties into obligations that investors can price effectively.

The Canadian government has acknowledged this issue, with the Canada Growth Fund offering carbon contracts for difference to guarantee a minimum carbon or credit price for a fixed period. In May 2026, Canada and Alberta agreed to develop jointly funded contracts covering up to 75 million tonnes of emissions reductions between 2030 and 2035.

While this progress is encouraging, timing remains a significant concern for the Edmonton project, as investors require more immediate and assured financial returns to support the project's viability.