Assessment and Hedging of Contract Unfulfilling Risks Facing Generation Companies
Risk assessment and hedging are essential jobs for generation companies in a deregulated environment.An engineering risk and financial risk combined evaluation method and corresponding hedging strategy are proposed.The risk of contract unfulfilling facing generation companies is studied,and reserve capacity is used as the hedging strategy.The hedging effect under different proportions of reserve capacity is investigated.The Canadian Alberta electricity market is used as a study case.Simulation results show that reserve capacity can achieve combined hedging by changing net shortage capacity.
For two independent random samples from absolutly continuous distributions Fand G, the problem of testing H0:F=Gagainst H0:F=G and other two-sided alternatives is considered. Then, the rank tests, that are invariant with respect to the remuneration of the samples of size two? are investigated, A description of the problem in geo metric terms' enables us to find the minimal essentially complete class as well as the necessary and sufficient condition of unbiasedness. As a result, we note that some well known tests are not unbiased.