In order to know the level of maturity of GCG implementation in the Company, PT Indonesia Power conducts consistent appraisal of GCG implementation every year since 2008. The appraisal is done by BPKP and self-assessment every 2 years using parameter SK-16 / MBU / 2012 from the Ministry of SOEs.
The following achievements of GCG Score achieved by PT Indonesia Power since 2008.
| TAHUN | CAPAIAN SKOR | PARAMETER PENILAIAN | ASESOR |
2008
| 51,34
| SK Kementrian BUMN Nomor S-168-MBU/2008 yang diperketat | PT PLN (Persero) |
2009
| 56,97 | SK Kementrian BUMN Nomor S-168-MBU/2008 yang diperketat | PT PLN (Persero) |
| 2010 | 78,05 | SK Kementrian BUMN Nomor S-168-MBU/2008 | BPKP |
| 2011 | 91,99 | SK Kementrian BUMN Nomor S-168-MBU/2008 | Self Assessment-asistensi Konsultan |
| 2012 | 95,28 | SK Kementrian BUMN Nomor S-168-MBU/2008 | Konsultan |
| | 84,77 | SK Kementrian BUMN Nomor SK-16/S-MBU/2012 | BPKP |
| 2013 | 92,04 | SK Kementrian BUMN Nomor SK-16/S-MBU/2012 | Self Assessment - IP |
| 2014 | 90,06 | SK Kementrian BUMN Nomor SK-16/S-MBU/2012 | BPKP |
| 2015 | 91,19 | SK Kementrian BUMN Nomor SK-16/S-MBU/2012 | Self Assessment - IP |
| 2016 | 91,99 | SK Kementrian BUMN Nomor SK-16/S-MBU/2012 | BPKP
|