Table 2: Physical and cost factors contributing to risk exposure by technology Technology Unit size Lead time Capital cost/kW Operating cost Fuel cost Regulatory risk Hydro power v.large long v. high v. low nil high Wind small short high v. low nil medium Nuclear v.large long high medium low high Coal (PC) large long high medium medium high Gas (CC) medium short low low high low Source: IEA, Power Generation Investment in Electricity Markets, Nov. 2003, p.32