Gemeinschaftskraftwerk Grohnde GmbH. Annual report 1994

In 1994, gross electricity generation amounted to 10 847 185 MWh. Net electricity supply to the grid was 10 265 724 MWh. In-plant demand was determined to be 5.4% (operational and shut-down periods). Mean net efficiency was 34.7%, which is slightly higher than the multi-year average, (34.5%), due to exchange of a low-pressure component of the low-pressure turbine. Maintenance work required a shut-down time of 697 hours; availability thus was 92% in the reporting period, the availability factor (net) was 87.9%, and the capacity factor (net) was 88.4%. Radioactivity released with the waste water was low again in 1994 and as in 1993 was clearly below the limits. The liquid effluents in the reporting year carried 4.88 E+7 Bq of radioactivity (excluding tritium), and 1.76 E+13 Bq emanating from tritium. Airborne radioactivity releases were 4.58 E+12 Bq (noble gases), 5.02 E+6 Bq (iodine-131), and 1.09 E+6 Bq (aerosols). The integral collective dose measured for in-house personnel over the year 1994 was 97 mSv, and 643 mSv for external personnel. There were four notifiable events in the reporting year. They had no impact on plant operation. Three of these occurred during recurrent inspection work. All events were classified to belong to category ''N'' and were reported as events of category ''0'' of the INES scale. (orig./HW)