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The Emissions & Generation Resource Integrated Database (eGRID) is a comprehensive source of data on the environmental characteristics of almost all
electric power Electric power is the rate at which electrical energy is transferred by an electric circuit. The SI unit of power is the watt, one joule per second. Standard prefixes apply to watts as with other SI units: thousands, millions and billions ...
generated in the United States. eGRID is issued by the
U.S. Environmental Protection Agency The Environmental Protection Agency (EPA) is an independent executive agency of the United States federal government tasked with environmental protection matters. President Richard Nixon proposed the establishment of EPA on July 9, 1970; it be ...
(EPA). As of January 2022, the available editions of eGRID contain data for years 2020, 2019, 2018, 2016, 2014, 2012, 2010, 2009, 2007, 2005, 2004, and 1996 through 2000. eGRID is unique in that it links air emissions data with
electric generation Electricity generation is the process of generating electric power from sources of primary energy. For utilities in the electric power industry, it is the stage prior to its delivery (transmission, distribution, etc.) to end users or its stor ...
data for United States power plants.EPA – Clean Energy – EE Action Plan
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History

* eGRID2020 was released by EPA on January 27, 2022. It contains year 2020 data. * eGRID2019 was released by EPA on February 23, 2021. It contains year 2019 data. * eGRID2018 was released by EPA on January 28, 2020 and eGRID2018v2 was released on March 9, 2020. It contains year 2018 data. * eGRID2016 was released by EPA on February 15, 2018. It contains year 2016 data. * eGRID2014 was released by EPA on January 13, 2017. It contains year 2014 data. * eGRID2012 was released by EPA on October 8, 2015. It is the 10th edition and contains year 2012 data. * eGRID2010 Version 1.0 with year 2010 data was released on February 24, 2014. * eGRID2009 Version 1.0, with year 2009 data was released on May 10, 2012. * eGRID2007 Version 1.0 was released on February 23, 2011 and Version 1.1 was released May 20, 2011. * eGRID2005 Version 1.0 was released in October 2008 and Version 1.1 was released in January 2009. * eGRID2004 Version 1.0 was released in December 2006; Version 2.0 was released in early April 2007; and Version 2.1, was released in late April 2007 and updated for typos in May 2007. * eGRID2000 Version 1.0 was released in December 2002; Version 2.0 was released in April 2003; and Version 2.01 was released in May 2003. (eGRID2000 replaced eGRID versions 1996 through 1998). * eGRID1998 was released in March and September 2001. * eGRID1997 was released in December 1999. * eGRID1996 was first released in December 1998.


Data summary

eGRID data include emissions, different types of emission rates,
electricity generation Electricity generation is the process of generating electric power from sources of primary energy. For utilities in the electric power industry, it is the stage prior to its delivery ( transmission, distribution, etc.) to end users or its stor ...
, resource mix, and heat input. eGRID data also include
plant Plants are predominantly Photosynthesis, photosynthetic eukaryotes of the Kingdom (biology), kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all curr ...
identification, location, and structural information. The emissions information in eGRID include
carbon dioxide Carbon dioxide ( chemical formula ) is a chemical compound made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature. In the air, carbon dioxide is t ...
(CO2),
nitrogen oxides Nitrogen oxide may refer to a binary compound of oxygen and nitrogen, or a mixture of such compounds: Charge-neutral *Nitric oxide (NO), nitrogen(II) oxide, or nitrogen monoxide *Nitrogen dioxide (), nitrogen(IV) oxide * Nitrogen trioxide (), or ...
(NOx),
sulfur dioxide Sulfur dioxide ( IUPAC-recommended spelling) or sulphur dioxide (traditional Commonwealth English) is the chemical compound with the formula . It is a toxic gas responsible for the odor of burnt matches. It is released naturally by volcanic ...
(SO2), mercury (Hg),
methane Methane ( , ) is a chemical compound with the chemical formula (one carbon atom bonded to four hydrogen atoms). It is a group-14 hydride, the simplest alkane, and the main constituent of natural gas. The relative abundance of methane on Ear ...
(CH4)
nitrous oxide
(N2O),and
carbon dioxide equivalent Global warming potential (GWP) is the heat absorbed by any greenhouse gas in the atmosphere, as a multiple of the heat that would be absorbed by the same mass of carbon dioxide (). GWP is 1 for . For other gases it depends on the gas and the time ...
(CO2e). CO2, CH4, and N2O are
greenhouse gases A greenhouse gas (GHG or GhG) is a gas that absorbs and emits radiant energy within the thermal infrared range, causing the greenhouse effect. The primary greenhouse gases in Earth's atmosphere are water vapor (), carbon dioxide (), meth ...
(GHG) that contribute to
global warming In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate variability and change, Climate change in a broader sense also includes ...
or
climate change In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to ...
. NOx and SO2 contribute to unhealthy air quality and acid rain in many parts of the country. eGRID's resource mix information includes the following fossil fuel resources:
coal Coal is a combustible black or brownish-black sedimentary rock, formed as stratum, rock strata called coal seams. Coal is mostly carbon with variable amounts of other Chemical element, elements, chiefly hydrogen, sulfur, oxygen, and nitrogen ...
,
oil An oil is any nonpolar chemical substance that is composed primarily of hydrocarbons and is hydrophobic (does not mix with water) & lipophilic (mixes with other oils). Oils are usually flammable and surface active. Most oils are unsaturate ...
,
gas Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma). A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or ...
, other fossil; nuclear resources; and the following
renewable resources A renewable resource, also known as a flow resource, is a natural resource which will replenish to replace the portion depleted by usage and consumption, either through natural reproduction or other recurring processes in a finite amount of ti ...
: hydroelectric (water),
biomass Biomass is plant-based material used as a fuel for heat or electricity production. It can be in the form of wood, wood residues, energy crops, agricultural residues, and waste from industry, farms, and households. Some people use the terms biom ...
(including
biogas Biogas is a mixture of gases, primarily consisting of methane, carbon dioxide and hydrogen sulphide, produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste and food waste. I ...
,
landfill gas Landfill gas is a mix of different gases created by the action of microorganisms within a landfill as they decompose organic waste, including for example, food waste and paper waste. Landfill gas is approximately forty to sixty percent methane ...
and digester gas),
wind Wind is the natural movement of air or other gases relative to a planet's surface. Winds occur on a range of scales, from thunderstorm flows lasting tens of minutes, to local breezes generated by heating of land surfaces and lasting a few ...
, solar, and geothermal. eGRID data is presented as an
Excel ExCeL London (an abbreviation for Exhibition Centre London) is an exhibition centre, international convention centre and former hospital in the Custom House area of Newham, East London. It is situated on a site on the northern quay of the Ro ...
workbook with data worksheets and a table of contents. The eGRID workbook contains data at the unit, generator, and
plant Plants are predominantly Photosynthesis, photosynthetic eukaryotes of the Kingdom (biology), kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all curr ...
levels and aggregated data by state, power control area, eGRID subregion, NERC region, and U.S. The workbook also includes a worksheet that displays the grid gross loss (%). Additional documentation is also provided with each eGRID release such as,
Technical Guide (PDF)Summary Tables

eGRID subregion map (JPG)NERC region Map (JPG)
an
release notes (TXT)
These files are available as separate downloadable files or all of them are contained in a
ZIP Zip, Zips or ZIP may refer to: Common uses * ZIP Code, USPS postal code * Zipper or zip, clothing fastener Science and technology Computing * ZIP (file format), a compressed archive file format ** zip, a command-line program from Info-ZIP * Zi ...
file. Similar files can be downloaded for a given year's eGRID release from EPA'
eGRID website
The primary data sources used for eGRID include data reported by electric generators t
EPA’s Clean Air Markets Division
(pursuant to 40 CFR Part 75) and to the
U.S. Energy Information Administration The U.S. Energy Information Administration (EIA) is a principal agency of the U.S. Federal Statistical System responsible for collecting, analyzing, and disseminating energy information to promote sound policymaking, efficient markets, and publ ...
(EIA).


Data use

eGRID data are used for carbon footprinting; emission reduction calculations; calculating indirect
greenhouse gas emissions Greenhouse gas emissions from human activities strengthen the greenhouse effect, contributing to climate change. Most is carbon dioxide from burning fossil fuels: coal, oil, and natural gas. The largest emitters include coal in China and ...
fo
The Climate Registry
the California Climate Action Registry, California's Mandatory GHG emissions reporting program (
Global Warming Solutions Act of 2006 The Global Warming Solutions Act of 2006, or Assembly Bill (AB) 32, is a California State Law that fights global warming by establishing a comprehensive program to reduce greenhouse gas emissions from all sources throughout the state. AB32 was c ...
, AB 32), and other GHG protocols; were used as the starting point for the new international carbon emissions database
CARMA
EPA tools and programs such a
Power Profiler

Portfolio Manager
th

th

th

and th
Greenhouse Gas Equivalencies Calculator
use eGRID. Other tools such as labeling/environmental disclosure, Renewable Portfolio Standards (RPS) and Renewable Energy Credits (RECs) attributes are supported by eGRID data. States also rely on eGRID data for electricity labeling (environmental disclosure programs), emissions inventories, and for policy decisions such as output based standards. eGRID is additionally used by nongovernmental organizations for tools and analysis by the International Council for Local Environmental Initiatives (ICLEI), th
Northeast States for Coordinated Air Use Management (NESCAUM)
the
Rocky Mountain Institute RMI (Rocky Mountain Institute) is an organization in the United States co-founded by Amory Lovins dedicated to research, publication, consulting, and lecturing in the field of sustainability, with a focus on profitable innovations for energy a ...
, the National Resource Defense Council (NRDC), th
Ozone Transport Commission (OTC)Powerscorecard.org
and th
Greenhouse Gas Protocol Initiative
In 2010
Executive Order 13514
was issued, requiring Federal agencies to “measure, report, and reduce their greenhouse gas emissions from direct and indirect activities.” Th
Federal GHG Accounting and Reporting Guidance
accompanied this order and recommended using eGRID non-baseload emission rates to estimate the Scope 2 (indirect) emission reductions from renewable energy.


See also

*
Air pollution Air pollution is the contamination of air due to the presence of substances in the atmosphere that are harmful to the health of humans and other living beings, or cause damage to the climate or to materials. There are many different type ...
*
Combined Heat and Power (CHP) Cogeneration or combined heat and power (CHP) is the use of a heat engine or power station to generate electricity and useful heat at the same time. Cogeneration is a more efficient use of fuel or heat, because otherwise- wasted heat from elec ...
*
Combined cycle A combined cycle power plant is an assembly of heat engines that work in tandem from the same source of heat, converting it into mechanical energy. On land, when used to make electricity the most common type is called a combined cycle gas tu ...
*
Electric power Electric power is the rate at which electrical energy is transferred by an electric circuit. The SI unit of power is the watt, one joule per second. Standard prefixes apply to watts as with other SI units: thousands, millions and billions ...
*
Electric utility An electric utility is a company in the electric power industry (often a public utility) that engages in electricity generation and distribution of electricity for sale generally in a regulated market. The electrical utility industry is a majo ...
*
Electrical power industry Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described ...
*
Electricity generation Electricity generation is the process of generating electric power from sources of primary energy. For utilities in the electric power industry, it is the stage prior to its delivery ( transmission, distribution, etc.) to end users or its stor ...
*
External combustion engine An external combustion engine (EC engine) is a reciprocating heat engine where a working fluid, contained internally, is heated by combustion in an external source, through the engine wall or a heat exchanger. The fluid then, by expanding an ...
*
Gas turbine A gas turbine, also called a combustion turbine, is a type of continuous flow internal combustion engine. The main parts common to all gas turbine engines form the power-producing part (known as the gas generator or core) and are, in the directio ...
*
Power station A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the generation of electric power. Power stations are generally connected to an electrical grid. Many p ...
* Renewable energy *
Steam turbine A steam turbine is a machine that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Charles Parsons in 1884. Fabrication of a modern steam turb ...


References


External links


EIA’s Electricity Database FilesEPA’s Clean Air Markets - Data and MapsEPA’s Clean Energy HomepageEPA’s Climate Change HomepageEPA's eGRID paper “How to use eGRID for Carbon Footprinting Electricity Purchases in Greenhouse Gas Emission Inventories”EPA’s eGRID website (Data years 2018, 2016, 2014, 2012, 2010, 2009, 2007, 2005, and 2004)

EPA's Power ProfilerEPA’s Energy Star Portfolio ManagerEPA's Acid Rain ProgramEPA's Combined Heat and Power Partnership Homepage

Executive Order 13514Federal GHG Accounting and Reporting GuidanceGreenhouse Gas Equivalencies CalculatorNortheast States for Coordinated Air Use Management (NESCAUM)Ozone Transport Commission (OTC)Personal Greenhouse Gas Emissions Calculator

Powerscorecard.org

World Business Council for Sustainable DevelopmentWorld Resources Institute Homepage
{{DEFAULTSORT:Emissions and Generation Resource Integrated Database Government databases in the United States Electric power Electric power companies of the United States Air pollution