21.   But environmentalists say that in the near term, the cost of building a new dam would outweigh any possible savings in power generation.

22.   But if fuel cells are to compete with other forms of power generation, Freeman insists that manufacturers must trim costs and boost reliability.

23.   But it requires fishing on a Salt River lake, where the dams are used for power generation.

24.   But the FERC order will have a chilling effect on long-term investment in power generation.

25.   Calpine said the natural gas-fired plants give it a source of cheap power generation as it prepares to compete in the deregulating U.S. electricity market.

26.   Calpine said the natural gas-fired plants give it a source of low-cost power generation as it prepares to compete in the deregulating U.S. electricity market.

27.   China plans to settle on a single western technology in both nuclear and conventional power generation soon.

28.   China plans to settle on a single western technology in both nuclear and conventional power generation.

29.   Coal is the leading fuel used for power generation in the U.S.

30.   Control goes beyond power generation and transmission.