Average locational marginal prices rose nearly 10% to $38.66 MWh in 2013, which Bowring noted was “still relatively low if you put it into historical perspective.”

The Energy Market was deemed competitive, despite the evaluation of the local market structure as not competitive “due to the highly concentrated ownership of supply in local markets created by transmission constraints.”

Fuel Source

Coal rebounded in 2013, generating 44% of PJM’s power, up 6 percentage points over 2012. Nuclear was next (34.8% of the RTO’s electricity, up 1.4 points). Gas’s share dropped to 16.3%, down 12.2% because of higher fuel prices.

Wind’s output was up 17.4%, though it still generates a relatively small amount of electricity (2%), while oil saw a 61% drop in energy production.

As far as installed capacity, coal ended the year with 75,559 MW, or 41.3% of ICAP, down 0.4% from the year before. Gas was up 0.6% over the course of the year, ending at 53,380 MW, or 29.2% of ICAP. Nuclear was even at 33,076 MW, or 18.1%.

Demand Response

DR revenue rebounded in 2013 from 2012 but was still below the more than $500 million in each of 2010 and 2011.

Congestion

Congestion costs were up 28% in 2013 to $676.9 million. Despite the increase, congestion remained less than a third of the $2.05 billion in 2008.