1. history
1.1. 18th century
1.1.1. lamps with illuminating gas
1.1.2. magnatic-electric maschines
1.1.3. dynamo maschines
1.1.3.1. Werner von Siemens
1.1.4. Development of the light bulb
1.1.4.1. Thomas Edison
1.1.5. Development of the three-wive system
1.1.6. Invention of the steam turbine
1.2. 19th century
1.2.1. electric power plants
1.2.1.1. construction of interconnected networks
1.2.2. nuclear power plants
1.3. 20th century
1.3.1. exit nuclear energy
1.3.2. switch to renewable energy
2. todays power grid
2.1. circut technology
2.1.1. transformers
2.1.2. cables and overhead lines
2.1.3. switching technologies
2.2. operating behavior
2.3. voltage levels
2.3.1. extra high voltage leve
2.3.2. high voltage level
2.3.3. medium voltage level
2.3.4. low voltage level
2.3.4.1. TT-System
2.3.4.2. TN-System
2.3.4.3. IT-System
3. energy sources
3.1. fossil energy
3.1.1. anthracite coal
3.1.2. borecole
3.1.3. crumble peat
3.1.4. natural gas
3.1.5. petroleum
3.2. renewable energy
3.2.1. solar energy
3.2.2. biomass energy
3.2.3. wind energy
3.2.4. hydrodynamic enery
3.2.5. geothermal energy
3.3. nuclear energy
3.3.1. nuclear fission
3.3.2. nuclear fusion
4. future
4.1. carbon dioxide emission
4.1.1. fuel
4.2. Germany
4.2.1. nuclear power plants
4.2.1.1. 2022
4.2.2. coal fired power plants
4.2.2.1. until 2038
4.3. power plants
4.3.1. renewable energy
4.4. alternative current
4.4.1. HVDC
4.4.1.1. pros
4.4.1.2. cons