11. Last year, drought reduced output from Iberdrola's hydroelectric facilities by 24.3 percent to 9.438 Gigawatt hours . 12. Last year, drought reduced output at Iberdrola's hydroelectric facilities by 24.3 percent to 9.438 gigawatt hours . 13. Output for November was 1, 356.06 gigawatt hours . 14. Tenaga Nasional also achieved a record energy usage of 162 . 63 Gigawatt hour last Wednesday. 15. Installed hydroelectric power total 3, 992 megawatts, with an annual product of 5, 417 gigawatt hours . 16. The reservoir has a Gigawatt hours of energy. 17. One gigawatt hour equals 100 megawatt hours. 18. The ex-Soviet republic's total electric energy output also gained, rising to 8, 606 gigawatt hours for the year. 19. Energy production in Greece is dominated by the Gigawatt hour in 2009 to 4, 232 GWh in 2010. 20. The company generates 220 gigawatt hours from its Luisa Caceres de Arizmendi plant on the popular island resort.
