31.   A heat wave combined with the sudden failure of two large power generators prompted hours of rotating blackouts in California.

32.   A second would allot allowances every year or two, giving more to bigger power generators but fewer to bigger polluters, thus rewarding the cleanest plants.

33.   AEP and others with extensive power lines can make money by making its lines available to independent power generators.

34.   AES is an Arlington, Virginia-based non-utility power generator.

35.   AEP is one of the largest power generators and distributors in the U.S.

36.   All the same, some power generators fell after the Financial Times reported that competition in the U.K. electricity supply market could be delayed beyond April.

37.   But power generators were not the only hot-selling items Tuesday.

38.   But this time around, soaring demand for diesel power generators is bolstering profits and helping to stabilize the company.

39.   But the test was delayed because of a leaking fuel tank and a faulty auxiliary power unit generator.

40.   California has accused power generators of manipulating electricity supplies in order to inflate energy prices.