  Dispatchability of renewable energy sources and inflexible loads can be
achieved using a volatility-compensating energy storage. However, as the future
power outputs of the inflexible devices are uncertain, the computation of a
dispatch schedule for such aggregated systems is non-trivial. In the present
paper, we propose a novel scheduling method that enforces the feasibility of
the dispatch schedule with a pre-determined probability based on a description
of the operation of the system as a two-stage decision process. Thereby, a
crucial point is the use of probabilistic forecasts, in terms of cumulative
density function, of the inflexible energy consumption/production profile.
Then, for the sake of comparison, we introduce a second scheduling method based
on state-of-the-art scenario optimization, where, unlike the proposed method,
the focus is on the minimization of the expected final cost. We draw upon
simulations based on real consumption and production data to compare the
methods and illustrate our findings.
