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Approved Abbreviations List
| ADCS | Automated Dispatch Control System |
| AGMS | Annual General Meeting of the Shareholders |
| AWP | Autumn Winter Period |
| CI | Capital investments |
| Company | Interregional Distribution Grid Company of Centre, Open Joint-Stock Company (IDGC of Centre, JSC) |
| CPL | Cable Power Line |
| CS | Control Station |
| CSC | Customer Service Centre |
| DC | Distribution Centre |
| DGC | Distribution Grid Company |
| DZ | Distribution Zone |
| EBITDA | Earnings Before Interest, Tax, Depreciation and Amortisation; indicator showing the profit of the Company before deduction of income taxes, accrued interest on loans and depreciation |
| EGMS | Extraordinary General Meeting of the Shareholders |
| EPS | Earnings per share |
| FA | Fixed Assets |
| Free float | Fraction of shares of the Company that are in free circulation; that is the shares not held by controlling or strategic shareholders |
| FTS of the Russian Federation | Federal Tariffs Service of the Russian Federation |
| FZ | Federal Law |
| GCC | Grid Control Centre |
| HV | High Voltage (110 kV) |
| IDGC Holding | Open Joint-Stock Company Holding of Interregional Distribution Grid Companies (IDGC Holding, JSC) |
| IDGC of Centre, JSC | Interregional Distribution Grid Company of Centre, Open Joint-Stock Company (IDGC of Centre, JSC) |
| IDP | Innovative Development Programme |
| IFRS | International Financial Reporting Standards |
| IP | Investment programme |
| ISG | Indoor switchgear |
| ITS | Indoor Transformer Substation |
| ITS | Industry Tariff Schedule |
| KPI | Key Performance Indicators |
| kWh | kilowatt-hour |
| MICEX | Moscow Interbank Currency Exchange |
| MTE | Motor Transport Enterprise |
| MUE | Municipal Unitary Enterprise |
| MVA | Megavolt-Ampere. Unit of measurement of electrical capacity |
| MW | Megawatt |
| NRKU | National Corporate Governance Rating |
| OEL | Overhead Electric Line |
| PL | Power Line |
| PTS | Package Transformer Substation |
| RAB (Regulatory Asset Base) | Return on invested capital method. The basic principle of the method is ensuring of return of funds invested into the Company’s assets over a specified period and the receipt of the standardized level of income |
| REC | Regional Energy Commission |
| RGR | Required Gross Receipts |
| RID | Non-Profit Partnership Russian Institute of Directors |
| ROE | Return on equity; net income of the company expressed as a percentage in relation to the equity capital |
| RPAE | Relay Protection and Automatic Equipment |
| RTS | Russian Trading System Stock Exchange |
| SA | Subsidiaries and affiliates of the Company — legal entities in which the Company owns at least 20% of the voting shares, or due to the Company’s dominant interest in the authorised capital or in accordance with any concluded agreement or otherwise, the Company has the opportunity to determine any resolutions adopted by such legal entities |
| SO | System operator |
| Substation | Substation, electric installation designed to convert and distribute electric power |
| TGO | Territorial Grid Organisation |
| TS | Transformer Substation |
| UNEG | Unified National (All-Russia) Electric Grid |