| Term | Definition | |
|---|---|---|
| ACGR | Annual Compound Growth Rate. | Comparative Results and Awards |
| ANEEL | Agência Nacional de Energia Elétrica. | Networks Manufactured Capital |
| BEIS | Department of Business, Energy and Industrial Strategy (UK). | Regulatory Environment |
| CEF | Corporate Environmental Footprint. | Natural Capital |
| CEL | Clean Energy Certificates. | Renovables |
| CEO | Chief Executive Officer. | Resultados comparados y reconocimientos |
| CFE | Comisión Federal de Electricidad. | Strategic Foundations for 2018-2022 Risks |
| CFO | Chief Financial Officer. | Comparative Results and Awards |
| COP21 | Paris Climate Conference - UN Framework and Convention on Climate Change (UNFCCC). | The Future of Energy Regulatory Environment |
| EBITDA | Earnings Before Interests, Taxes, Depreciations and Amortizations. | Letter from the Chairman & CEO/a> Company Performance Iberdrola, a Different Company Strategic Foundations for 2018-2022 Comparative Results and Awards Networks Wholesale and Retail Renewables Financial Capital Risks |
| EPD | Environmental Product Declaration. | Capital natural |
| EU ETS | European Union Emissions Trading System. | Posicionamiento Regulatorio |
| FFO | Funds from operations. | Modelo de negocio Bases estratégicas para el periodo 2018-2022 Capital financiero |
| GDP | Gross Domestic Product. | Letter from the Chairman & CEO Presence by Areas of Activity Business Model Capital/Business Relationship |
| GHG | Greenhouse Gas. | Capital natural |
| ICFRS | Internal Control Over Financial Reporting System. | Three Lines of Defence |
| IEA | International Energy Agency. | The Future of Energy |
| IIRC | International Integrated Reporting Council. | Our Assets About this Report |
| ITC | Investment Tax Credit. | Regulatory Environment Renewables |
| LBG | London Benchmarking Group. | Business Model Social and Relationship Capital |
| NOE | Net Operating Expenses. | Networks Financial Capital |
| NYSEG | New York State Electric and Gas Corporation. | Networks |
| Ofgem | Office of Gas and Electricity Markets (UK). | Regulatory Environment Networks Wholesale and Retail Manufactured Capital |
| PPA | Power Purchase Agreement. | Risks |
| PTC | Production Tax Credit. | Regulatory Environment Renewables |
| RAB | Regulated Asset Base. | Networks |
| REV | Reforming the Energy Vision. | Manufactured Capital |
| RG&E | Rochester Gas and Electric. | Networks |
| RIIO-ED1 | Revenue=Incentives + Innovation + +Outputs. Electricity Distribution 1. | Networks |
| RIIO-T1 | Revenue=Incentives + Innovation + +Outputs. Transmission 1. | Networks |
| RIIO-T2 | Revenue=Incentives + Innovation + + Outputs. Transmission. | Networks |
| ROE | Return on equity. | Networks |
| SCG | Southern Connecticut Gas. | Networks |
| SDGs | Sustainable Development Goals. | Business Model Social and Relationship Capital |
| TCFD | Task Force for Climate Change Risk Financial Disclosure. | Business Model |
| UI | United Illuminating | Networks |
