Distributed Resources are typically small scale capacity generation and storage technologies (usually less than 1 MW) -- suitable for use in peak shaving and distributed applications.
The term "distributed resources" includes modular power technologies and nongenerating demand side management (DSM) measures, such as energy efficiency improvements, that reduce the load at the distribution level of the transmission and distribution (T&D) grid.
Distributed generation is the locating of electricity generators close to the point of consumption. It provides some unique benefits to power companies and customers that are not available from centralized electricity generation.
Distributed power technologies are inherently modular, and can include renewable energy, fuel cell, and cogeneration systems.
Electricity generated at power plants moves through a complex network of electricity substations, power lines, and distribution transformers before it reaches customers.
In the United States, the power system consists of more than 7,300 power plants, nearly 160,000 miles of high-voltage power lines, and millions of low-voltage power lines and distribution transformers, which connect 145 million customers.
Local electricity grids are interconnected to form larger networks for reliability and commercial purposes. At the highest level, the United States power system in the Lower 48 states is made up of three main interconnections, which operate largely independently from each other with limited transfers of power between them.
The Eastern Interconnection encompasses the area east of the Rocky Mountains and a portion of northern Texas. The Eastern Interconnection consists of 36 balancing authorities: 31 in the United States and 5 in Canada.
The Western Interconnection encompasses the area from the Rockies west and consists of 37 balancing authorities: 34 in the United States, 2 in Canada, and 1 in Mexico.
The Electric Reliability Council of Texas (ERCOT) covers most, but not all, of Texas and consists of a single balancing authority.
|LEBS||Low Emission Boiler System|
|LHV||Low Heating Values|
|MCFC||Molten Carbonate Fuel cell|
|MGE||Madison Gas and Electric Company|
|MISO||Midcontinent Independent System Operator|
|NAAQS||National Ambient Air Quality Standards|
|NEC||National Electric Code|
|NFPA||National Fire Protection Association|
|NREL||National Renewable Energy Laboratory|
|PAFC||Phosphoric Acid Fuel Cell|
|PEMFC||Proton Exchange Membrane Fuel Cell|
|PSC||Public Service Commission|
|PSD||Prevention of Significant Deterioration, related to air quality|
|PURPA||Public Utility Regulatory Policy Act|
|RPS||Renewable Portfolio Standards|
|SCR||Selective Catalytic Reduction|
|SMES||Superconducting Magnetic Energy Storage|
|SOFC||Solid Oxide Fuel Cell|
|T&D||Transmission and Distribution|
|THD||Total Harmonic Distortion|
|TSP||Total Suspended Particulate|
|VOC||Volatile Organic Compounds|
|W/m2||Watts per Meter Squared|
|WE||We Energies, part of WEC Energy Group|
|WI||Work Input, related to energy input|
|WIDRC||Wisconsin Distributed Resources Collaborative|
|WPPI||WPPI Energy, non-profit serves 51 locally owned electric utilities|
|WO||Work Output, related to energy output|
|WP&L||Wisconsin Power and Light Company, a subsidiary of Alliant Energy Corp.|
|WPSC||Wisconsin Public Service Corporation, part of WEC Energy Group|