The Tent Mountain Mine is an existing, disturbed mine site, located approximately 16 km west of the township of Coleman, that ceased operations in 1983. Developing Tent Mountain as a renewable energy complex could result in the first large scale production of green hydrogen in Canada. Furthermore, the PHES element of the complex will play an important role in filling supply gaps in Alberta’s electricity grid. Wind and solar power are inherently intermittent, only producing power when the wind blows or sun shines. The PHES acts as a large battery, recharging when there is an abundance of wind and solar power available and providing power to Alberta’s electricity grid when there is a shortage of wind and solar power.
Montem first started looking at an end of mine life PHES for Tent Mountain in 2019, undertaking a site assessment and economic analysis. The results were promising, but at the time Montem decided to continue progressing Tent Mountain primarily as a steelmaking coal mine re-start. With the current uncertainty surrounding the timeline of the mine re-start, Montem have brought forward the planning for developing Tent Mountain into a renewable energy complex and are now moving to a Feasibility Study.