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Early November cold weather prompts fuel switching in PJM and MISO
A historic November cold snap sent temperatures below freezing in 75% of the Lower 48 states. Because of this cold snap, the price of natural gas increased from an average of less than $2.00 per million British thermal units (MMBtu) in October to a mid-November high of $5.11/MMBtu at the Tetco M3 hub, located in northeast Pennsylvania in the PJM Interconnection (PJM). Prices rose about $1.00/MMBtu and reached nearly $3.00/MMBtu at the Chicago Citygate hub in the Midcontinent Independent System Operator (MISO). These price increases resulted in coal-fired power generation replacing natural gas-fired generation starting in late October in both of these regional transmission organization markets. In both PJM and MISO, where strong competition exists between natural gas- and coal-fired generation, relative shifts in fuel prices can influence which type of power plant operates.

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