Tables 8.2 through 8.8 contain results for the expected case. But results rarely turn out exactly as expected. For the Cogeneration Project, the residual value is uncertain. Also, unless some form of interest rate protection is arranged, the interest rate on the 10-year debt issue is uncertain. On the other hand, the construction contract eliminates uncertainty with regard to If the electric power purchase, steam purchase, construction, and gas supply agreements were not in place, then additional sensitivity analyses like those presented in Figure 8.2 and Table 8.9 would indicate how sensitive the equity rates of return and loan coverage parameters are to variation in these prices and quantities.