Fundamental Concepts. Introduction -- Distribution System Structure -- Distribution System Planning -- Load Forecasting -- Protection and Switchgear. Earthing of Electric Distribution Systems -- Short-Circuit Studies -- Protection: Current-Based Schemes -- Protection: Other Schemes -- Switchgear Devices -- Switchgear Installation -- Power Quality. Electric Power Quality -- Voltage Variations -- Power Factor Improvement -- Harmonics in Electric Distribution Systems -- Harmonics Effect Mitigation -- Management And Automation. Demand-Side Management and Energy Efficiency -- Scada Systems -- Distributed Energy Resources and Microgrids. Distributed Generation -- Electrical Energy Storage -- Microgrids and Smart Grids.