pjm

The U.S. market for electricity is trifurcated. More than half the country is served by competitive generators bidding against each other in wholesale markets. Almost half is served by conventional state-regulated, vertically integrated utilities controlling generation and transmission. The rest, a much smaller portion, consists of government-owned and customer-owned utilities, some of which are generators […]

In an effort to become a fully regulated power company, American Electric Power (AEP) has agreed to sell four Midwestern power plants—representing a total of 5.2 GW—to a newly formed joint venture of Blackstone and ArcLight Capital Partners for about $2.17 billion.  AEP will sell: the 1,186-MW natural gas–fired Lawrenceburg Generating Station in Lawrenceburg, Ind. […]

The “polar vortex” storm of January 2014 blew in big changes to PJM Interconnection’s operations. But these changes are now the subject of a lawsuit filed by environmental groups, alleging they discriminate against clean energy sources. The sub-zero temperatures froze coal piles and gearboxes. Natural gas plants, lacking firm contracts for fuel delivery, were unable […]

  Even though it may dominate forecasts, natural gas–fired generation faces a troubled expansion in the U.S., according to experts from a variety of stake-holding entities—including an industry group, a utility, a generator, and a pipeline company. Challenges that have few solutions—from price volatility, to gas transport concerns, to rule uncertainty—may upend the nation’s dependence […]

In a unanimous ruling, the U.S. Supreme Court upheld a lower court decision that a program Maryland initiated in 2012 to subsidize power plant construction impermissibly invaded the Federal Energy Regulatory Commission’s (FERC’s) authority over interstate power markets. The case, Hughes v. Talen Energy Marketing, grew out of a decision by the Maryland Public Service […]

Within the space of less than a week, four deals have been announced that will result in ownership changes at five power plants in the U.S. Northeast. Calpine Buys Another Gas Plant Calpine Corp. announced on Oct. 13 that it has agreed to acquire the Granite Ridge Energy Center, a 745-MW combined cycle gas-fired power […]

In presentations to the Federal Energy Regulatory Commission (FERC), the nation’s regional transmission organizations (RTOs) and independent system operators (ISOs) on Sept. 17 outlined measures they are taking to prevent issues if faced with extreme weather this winter.  The measures are to prevent widespread generation outages as occurred during the Jan. 6–7, 2014, polar vortex. […]

Exelon’s embattled nuclear fleet got more bad—though far from unexpected—news on Aug. 21 as the Oyster Creek, Quad Cities, and Three Mile Island nuclear power plants failed to clear in the 2018–19 PJM capacity auction. This means that the three plants will not receive capacity payments during that delivery year. This was despite a big […]

From its modest origins as a way to shed load when the grid is stressed, demand response (DR) has grown to be a significant player in electricity markets. In the PJM region, demand response has accounted for as much as 14,833 MW of capacity, almost 10% of the total. Customer Gains and Generator Losses Demand […]

The effects of the January 2014 polar vortex have led to big changes in the PJM capacity market, as the board has approved changes to tighten up operations and improve reliability. The polar vortex storm of Jan. 6–8, 2014, saw temperatures plunge across the Midwest and Mid-Atlantic, causing a spike in demand for electricity and […]