Background Information

St. Mary’s Cement is a major producer of cementitious materials in the Great Lakes Region, with six plants and a combined production capacity of over five million metric tonnes to serve customers throughout North America.

The company is part of Votorantim Cimentos, one of the largest cement producers in the world. Votorantim Cimentos operates 25 cement plants in the Americas with a combined capacity of 28 million metric tonnes per annum.

St. Mary’s production process depends on a reliable source of energy, and they were experiencing numerous brownouts that were adversely affecting productivity. In addition, St. Mary’s was looking for energy alternatives that would significantly lower their costs and carbon footprint.

Why OOM Energy

Based on these considerations, St. Mary’s made a strategic decision to implement OOM’s Integrated Energy Platform™ (IEP).

They saw OOM’s approach as way to protect against the inconsistent performance of the public utility gird, and to ensure they had a reliable and sustainable source of energy in an environment in which the supply of electricity is not keeping up with demand.

In addition, St. Mary’s wanted to realize significant cost savings by implementing their own Dedicated Energy System, and eliminate the risk of future price increases. They were also driven by the opportunity to reduce their carbon footprint because of OOM’s highly efficient energy generating platform.

St. Mary’s had OOM Energy install a 1.3 MW IEP that required no up-front capital outlay, with a fifteen year fixed monthly fee contract to ensure price certainty. The system would provide electricity to fulfill both heating and cooling requirements, with an integrated carbon sequestration feature.

Project Outcomes

The results have exceeded St. Mary’s expectations.

The system produced 4,087,374 kWh in its first year of operation, with a total run time of 99.7%. They avoided 27 brownouts and blackouts that they had experienced the prior year while still on the public grid.

Their average heating bill was reduced from $7,400 monthly to $592, a savings of 92%. Their overall electricity costs were reduced by 21%.

From an environmental standpoint, they reduced their CO2 emissions by 596,817 kg’s, NOx by 3.7 tons (equal to removing 659 cars from the road) and SO2 by 34.2 tons because of OOM’s highly efficient Integrated Energy Platform™ (IEP).
St. Mary’s Cement is a major producer of cementitious materials in the Great Lakes Region, with six plants and a combined production capacity of over five million metric tonnes to serve customers throughout North America.

Summary

Because of the unqualified success experienced at the Leaside location, St. Mary’s plans on implementing OOM’s IEP at locations across North America, including in Detroit, Michigan and Bowmanville, Ontario.