tail water depressed reserve definition

tail water depressed reserve means a form of instantaneous reserve comprising a generating capacity on a motoring hydro generation set with no water flowing through the turbine that is available following a drop in system frequency;

Related to tail water depressed reserve

  • Potable water means water that is fit for human consumption;

  • Recycled water or “reclaimed water” means treated or recycled waste water of a quality suitable for non-potable uses such as landscape irrigation and water features. This water is not intended for human consumption.

  • Mining overburden returned to the mine site means any material overlying an economic mineral deposit which is removed to gain access to that deposit and is then used for reclamation of a surface mine.

  • waste water means used water containing substances or objects that is subject to regulation by national law.

  • Non-Synchronized Reserve Event means a request from the Office of the Interconnection to generation resources able and assigned to provide Non-Synchronized Reserve in one or more specified Reserve Zones or Reserve Sub-zones, within ten minutes to increase the energy output by the amount of assigned Non-Synchronized Reserve capability. Non-Variable Loads:

  • Unpolluted water means water of quality equal to or better than the effluent criteria in effect or water that would not cause violation of receiving water quality standards and would not be benefited by discharge to the sanitary sewers and wastewater treatment facilities provided.

  • Water Surface Elevation (WSE means the height, in relation to mean sea level, of floods of various magnitudes and frequencies in the floodplains of coastal or riverine areas.

  • Non-potable water means water not safe for drinking, personal, or culinary use as determined by the requirements of 35 Ill. Adm. Code 604.

  • Residual disinfectant concentration means the concentration of disinfectant measured in mg/L in a representative sample of water.

  • Probable Mineral Reserve means the economically mineable part of an indicated and, in some circumstances, a measured mineral resource demonstrated by at least a preliminary feasibility study. This study must include adequate information on mining, processing, metallurgical, economic and other relevant factors that demonstrate, at the time of reporting, that economic extraction can be justified;

  • Seasonal high water table means the highest zone of soil or rock that is seasonally or permanently saturated by a perched or shallow water table. A planar surface, below which all pores in rock or soil (whether primary or secondary) that is seasonally or permanently saturated.

  • Stormwater management planning area means the geographic area for which a stormwater management planning agency is authorized to prepare stormwater management plans, or a specific portion of that area identified in a stormwater management plan prepared by that agency.

  • Diameter at breast height (dbh) means the diameter of a tree at 4 1/2 feet above the ground measured from the uphill side.

  • Stormwater runoff means water flow on the surface of the ground or in storm sewers, resulting from precipitation.

  • Proven Mineral Reserve means that economically mineable part of a measured mineral resource demonstrated by at least a preliminary feasibility study. This study must include adequate information on mining, processing, metallurgical, economic and other relevant factors that demonstrate, at the time of reporting, that economic extraction can be justified;

  • Non-Methane Hydrocarbons (NMHC means the sum of all hydrocarbon air pollutants except methane.

  • Ballast water means water with its suspended matter taken on board a ship to control trim, list, draught, stability or stresses of the ship.

  • Runoff coefficient means the fraction of total rainfall that will appear at the conveyance as runoff.

  • PDP Reserves means Proven Reserves which are categorized as both "Developed" and "Producing" in the definitions promulgated by the Society of Petroleum Evaluation Engineers and the World Petroleum Congress as in effect at the time in question.

  • water meter means any apparatus for measuring or showing the volume of water supplied to, or of effluent discharged from any premises;

  • Finished water means the water that is introduced into the distribution system of a public water system and is intended for distribution and consumption without further treatment, except as treatment necessary to maintain water quality in the distribution system (e.g., booster disinfection, addition of corrosion control chemicals).

  • Greenhouse gases (GHGs) means the aggregate group of six greenhouse gases: carbon dioxide, nitrous oxide, methane, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride.

  • Properly Shredded Garbage means the wastes from the preparation, cooking, and dispensing of food that have been shredded to such a degree that all particles will be carried freely under the flow conditions normally prevailing in public sewers, with no particle greater than one-half (1/2) inch (1.27 centimeters) in any dimension.

  • Activated reserve components means members of the reserve component of the uniformed services who have received a notice of intent to deploy or mobilize under Title 10 of the United States Code, Title 32 of the United States Code, or state mobilization to active duty.

  • Water surface elevation means the height, in relation to the National Geodetic Vertical Datum (NGVD) of 1929, the North American Vertical Datum (NAVD) of 1988, or other datum, where specified, of floods of various magnitudes and frequencies in the floodplains of riverine areas.

  • Ultra Low Sulfur Diesel Fuel means diesel fuel that has a sulfur content of no more than fifteen parts per