Abstract: 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.

Abstract: 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.

Abstract: A speaker stand which facilitates the elevation of a speaker cabinet, thereby enhancing the quality of sound distribution for the listening audience. The speaker stand, which is preferably constructed of wood because of its reputation for having excellent acoustical qualities, is comprised of two basic components, an internal structure and an enclosure. The internal structure is comprised of a top lateral surface, a bottom lateral surface and two substantially upright u-shaped cross members assembled in a configuration of a cruciform. The internal structure fits within the enclosure in such a way that the underside of the top lateral surface of the enclosure makes contact only with the top lateral surface of the internal structure. The internal structure slightly elevates the enclosure to prevent it from touching the floor. The speaker stand is constructed to provide freedom of air flow within the chamber as well as allowing the air to freely enter and exit the chamber.