Ask yourself, does this section of your business case answer these questions:
• Off what base have costs been derived? (e.g., schematic designs, output specifications, other).
• Are cost information sources disclosed? Is the level of precision of the cost estimates and the associated impact on the financial models discussed?
• Are all base and ancillary cost categories accounted for?
• Is the timing of cash outflows typical for (where relevant) the PSC and the Shadow Bid?
• Are deviations from expected differences between the PSC and Shadow Bid base and ancillary costs clearly explained?