The "leasing" of the SPS may be unattractive to the utilities because the SPS will, when it comes on line, represent a completely foreign technology. For example, there is unlikely to be any long term reliability and stability data for the plant. In light of the unknowns and uncertainties, if the utilities are required to make an extremely long term comitment in order to be permitted to purchase any energy from the SPS, it is possible that they will not be interested.
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