Alberta Saskatchewan Intertie and Storage (ASISt) Project
The ASISt project will be one of only a few utility scale Diabatic Compressed Air Energy Storage (D-CAES) facilities worldwide. Utilizing excess renewable power (solar, wind, etc) the unit will compress air in to underground salt storage caverns. This typical facility is design for 32 hours of compression at 100 MVA and 50 hours of generation at 150 MVA.
The facility design includes: •Compression train (air compressor) – 100 MVA rated multi stage compressors with electric drivers •Generator train (air expander and gas turbine combination) – 150MVA rated including direct generation •Electrical substation – high voltage power grid interconnection rated to 125kV at 150MVA •Air storage – 2 caverns in the Prairie Evaporate formation, each sized for 160,000 m3 storage •Infrastructure to support the facility development: water gathering wells (brackish), storage and distribution; cavern wash water pumps and distribution system; brine disposal wells and interconnects •Site utility interconnections: High Voltage power, fuel gas, municipal interconnections (TBA)
Rangeland Responsibilities: •Feasibility study – technical recommendations •Cost Estimating: Class 5/4 hybrid •Regulatory planning – AUC, AER •Project schedule development and planning •Project risk identification and mitigation planning
