Entwicklung
The upgrade of the issuance rating to BBB+ from BBB is based on a stable operational track record, steady deleveraging and improved recovery expectations. Key rating considerations remain a combination of moderate project risks, moderate financial risks, low operational risks and adequate terms of issuance. The rating outlook remains stable.
| Rating-Historie | Notation/Outlook | Ratingbericht |
| 30.09.2020 | BBB+ / stabil |  |
| 30.09.2019 | BBB / stabil | |
| 27.09.2018 | BBB / stabil | |
| 05.10.2017 | BBB / stabil | |
| 11.10.2016 | BBB / stabil | |
| 13.10.2015 | BBB / stabil | |
| 20.08.2015 | BBB / stabil | |
