A method, system and program product for facilitating trading derivatives of energy constraints, the method comprising in one embodiment: obtaining electronically historical constraint price data on transmission elements or groups of transmission elements over a number of respective time increments; performing electronically an algorithm calculation on the constraint prices for one of the transmission elements or one of the groups of transmission elements over a number of time increments within a given period of time, to obtain constraint price data for the one transmission element or group of transmission elements for the given period of time; performing this algorithm calculation step for a plurality of the periods of time to obtain constraint price data for each of the plurality of transmission elements or groups of transmission elements for the plurality of periods of time; and making accessible the constraint price data. The invention further includes market making embodiments, binding hours derivative embodiments, and load derivative embodiments. In a further embodiment, a method, system and program product for operating an electronic trading exchange for power derivatives is disclosed.