A tight coal market and record-high coal prices in the Eastern U.S. have suppressed gas-to-coal switching in recent months, despite the gas market also contending with a supply squeeze and gas prices trading at Shale Era highs. The coal-market constraints have contributed to record, or near-record, gas demand in the power sector, with gas gaining market share of total generation fuel demand — in spite of wind and solar increasing their share of the pie. Generation fuel dynamics were a driving factor in the tighter gas market balances this past winter and also play a role in how power grids balance cost and reliability during times of extreme customer demand, such as the record-breaking heat wave expected to hit Texas in the coming days. In today’s RBN blog, we take a look at power generation fuel economics, particularly the fuel-switching phenomenon and its underlying drivers.
Talkin’ ‘Bout My Generation – The Drivers and Constraints of Coal-Gas Fuel Switching
