December 9, 2013Marcellus region to provide 18% of total U.S. natural gas production this month| www.eia.gov
U.S. Overview| www.eia.gov
A non-dispatchable source of electricity generates electrical energy but cannot be turned on or off in order to meet societies fluctuating electricity needs. It is the opposite of dispatchable sources of electricity which are very flexible, being able to change their output fairly quickly in order to meet electricity demands. Non-dispatchable electricity sources are often highly intermittent, which means that they are not continuously available due to factors that cannot be controlled (ex. th...| energyeducation.ca
Figure 1. Solar power is intermittent, and is non-dispatchable without an energy storage system because of cloud cover and limited daytime hours.[1]Intermittent electricity is electrical energy that is not continuously available due to external factors that cannot be controlled, produced by electricity generating sources that vary in their conditions on a fairly short time scale. Sources of intermittent electricity include solar power,[2] wind power,[3] tidal power, and wave power.[4] Althoug...| energyeducation.ca
How the technologically important metals rose from obscurity to ubiquity| Chemical & Engineering News