Reliable estimates of the value of electricity transmission are critical if these heavily-regulated investments are to be made cost-effectively. In this paper, we exploit the abrupt closure of the San Onofre Nuclear Generating Station (SONGS) in February 2012. During the previous decade, SONGS...

In electricity markets, generators are rewarded both for providing energy and for enabling grid reliability. The two functions are compensated with two separate payments: energy market payments and ancillary services market payments. We provide evidence of changes in the generation mix in the...