Dalam proyek pembangunan PLTU 10.000 MW, risiko atau ketidakpastian yangm muncul di dalam proyek tersebut terdapat pada setiap tahapan proses EPC mulai dari tahap engineering, procurement, construction sampai dengan tahapan testing/commissioning yang menimbulkan pengaruh signifikan dalam kinerja biaya. Setelah dilakukan kajian dan risiko didapatkan risiko dominan yaitu sering terjadinya re-design engineering, perubahan kondisi cuaca pada fase construction. Pada proses dummy didapatkan faktor dominan risiko kurang pengalaman Partner dalam menangani proyek sejenis dan kurangnya informasi tentang perusahaan vendor. Pemodelan risiko didapatkan mean pada skala interval -2,5% < sd < 0%, artinya kinerja biaya proyek pada kondisi kecenderungan rendah atau dengan realisasi RAP aktual melebihi RAP rencana.
In a 10,000 MW power plant construction projects, risks or uncertainties arise in the project are included on each stage of the EPC process starting from the engineering, procurement and construction up to the stage of testing / commissioning are also factors that influence the risk of project performance. After doing the study and of risk that influence the cost performance of the EPC contractor on the construction, the dominant risk are the frequent occurrence of re-engineering design phase and changes in weather conditions at the construction phase. The dummy process on statistical model also found the dominant risk in the factor of partner inexperience in handling similar projects and the lack of information about the company's vendors. From the obtained mean risk modeling scenarios on a scale interval -2.5%
