Electric power: distribution energy technology

Electrochemical technologies having a high impact on the world goods production are not so many. Table 1 shows the percentage of the production by electrolysis of several of the most important metals and non-metallic materials and the distribution of electric power and energy consumption in the production process of these materials. It is evident that the main... 

See also Cogeneration Technologies Edison, Thomas Alva Electricity Electric Motor Systems Electric Power Transmission and Distribution Systems Matter and Energy Regulation and Rates for Electricity Siemens, Ernst Werner von Tesla, Nikola Thomson, Joseph John Townes, Charles Liard Turbines, Gas Turbines, Steam Volta, Alessadro Wlieatstone, Charles. 

Today most electric power is produced in large centralized instaUations (> 250 MW) and about 5 0 % of the primary energy is converted into heat. Heat, however, is much more diSicult to distribute than electricity. Therefore in the majority of instaUations heat is treated as waste or only a smaU fraction is used. Heat from low-power, decentralized power stations can be better utilized. But the combustion technologies have much lower electric eSiciencies at lower power (i.e. below 100kW), and therefore fuel ceUs in distributed combined heat and power generation (CHP) are an attractive alternative. The electric efficiency of fuel ceU systems is sufficiently high (>30%) even at low power and also the heat can be utUized, so that the total efficiency can reach values >80 % [29, 30]. 

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