  We consider fixed load power market with non-convexities originating from
start-up and no-load costs of generators. The convex hull (minimal uplift)
pricing method results in power prices minimizing the total uplift payments to
generators, which compensate their potential profits lost by accepting
centralized dispatch solution, treating as foregone all opportunities to supply
any other output volume allowed by generator internal constraints. For each
generator we define a set of output volumes, which are economically and
technologically feasible in the absence of centralized dispatch, and propose to
exclude output volumes outside the set from lost profit calculations. New
pricing method results in generally different set of market prices and lower
(or equal) total uplift payment compared to convex hull pricing algorithm.
