Capturing emissions and securing them underground

For power plants and essential industrial processes such as cement and steel manufacturing, carbon capture and storage (CCS) also known as carbon capture utilization and sequestration (CCUS) offers a safe, clean energy technology to capture carbon dioxide (CO2) emissions from where they are produced and sequester or store them permanently deep underground.

The International Energy Agency calls CCS one of the world’s most critical decarbonization technologies* to help achieve net zero by 2050. Resources will be needed for pilot projects and infrastructure development to allow Ontario to scale up CCS to its maximum potential.


Cleaner air is just one of the benefits

Lower carbon footprint

CCUS can capture over 90 percent of CO2 emissions from a power plant or industrial facility.

Enables other essential net-zero pathways

CCUS can help unlock blue hydrogen production and development of other low-carbon fuels.

Lower emissions effectively

CCUS could be a major contributor to achieving Ontario’s emissions reduction targets.

Energy system resilience

Coupling CCUS with the highly reliable natural gas system increases overall energy system resilience.


How carbon capture and sequestration works

CCS is not a new or emerging technology. Western Canada is a leader in CCS, with decades of experience and projects already operating in Saskatchewan, Alberta and British Columbia. The technical expertise and legal, regulatory and policy frameworks necessary could be readily adopted in Ontario.

Ways to capture and use CO2

  1. Carbon dioxide is captured from an industrial facility, power plant or directly from the air.
  2. Large scale capture and sequestration: The CO2 is concentrated, compressed and transported to a sequestration site (by pipeline, rail, truck or ship), and pumped deep underground into a porous geologic formation, which keeps the CO2 trapped underground permanently.
  3. Smaller scale capture and conversion: The CO2 is captured and converted from a gas to a stable solid, like sodium carbonate (soda ash), that can have other uses and benefits including surplus heat that can a) offset energy demand and b) make pharmaceuticals, glass and soap.

Learn more about carbon capture


Ontario’s potential savings

  • A preliminary study by the Ontario Ministry of Natural Resources showed that up to 730 megatonnes of CO2 could potentially be stored in a deep saline aquifer located in southern Ontario.
  • Canada is investing $319 million over seven years into research and development of CCS technologies.

Moving forward together

  • The Government of Ontario is considering amendments to the Oil, Gas and Salt Resources Act and the Mining Act to better enable and support the development of a carbon capture and sequestration industry in Ontario.
  • This would allow the required testing and evaluation to move forward, while also enabling private-sector investment for made-in-Ontario CCS solutions.

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