The long-term wholesale electricity market is becoming increasingly competitive. Bidding for power contracts has become a dominant
form of competition in this sector. The prices which emerge from this process have not been documented and compared in a systematic
framework. This paper introduces a method to make such comparisons and illustrates it on a small sample of projects. The results
show a wide range of prices for what is essentially the same technology, gas-fired combined cycle generation. The price range seems
greater than what could be explained by transmission cost differences between high and low cost regions. For the smaller sample of
coal- fired projects, price variation is substantially less. Further data collection and analysis should be able to help isolate
more clearly what market or cost factors are responsible for the observed variation.