While EnCana’s Weyburn project is profitable in its own right, most industrial operators would find it economically prohibitive to strip CO₂ from industrial processes for sequestration down disposal wells. Those economics changed profoundly last July when Alberta Premier Ed Stelmach announced a $2-billion commitment of government assistance to advance carbon capture and sequestration (CCS) technologies in the province. Provincial authorities are now sifting through a dozen applications for funding, and will announce the successful projects as decisions are made.

Alberta’s involvement follows a gestation period of deep study, including a provincial policy paper which observed that “Alberta has a unique opportunity to implement carbon capture and storage to substantially reduce our greenhouse gas emissions. CO₂ emissions can be captured where they are produced, transported and stored in geological formations (such as depleted oil and gas reservoirs, coal beds and deep saline aquifers) that may be located hundreds of kilometers away.

Ultimately, CO₂ capture and storage technologies provide the province with the greatest potential to substantially reduce greenhouse gas emissions while, at the same time, retaining our ability to produce and provide energy to the rest of the world.”

According to that policy paper, Alberta is counting on CCS to meet 70 per cent of its long-term greenhouse reduction targets. If the five provincially subsidized projects – likely to cost a billion dollars each–all go into operation, they would collectively reduce emissions by up to five million tonnes annually. That is likely just the beginning for large-scale underground carbon sequestration projects in the province.

While five million tonnes annually of sequestered CO₂ may seem like a large number, it’s barely a whiff of what’s possible. Over four decades, Alberta’s greenhouse gas emissions plan targets a 200-million tonne cut in emissions, but only compared to a do-nothing scenario. That volume is a bare indication of the huge volumes of waste – solids, liquids, effluents and emissions – generated by one of the world’s leading petroleum producers.

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