PERI: Greenhouse 100 Index

Unisource Energy Corp

Rank in Greenhouse 100: 67
Greenhouse gas CO2 equivalent emissions (metric tons): 11,401,082
Percentage of national total 2011 GHGRP large fixed source emissions: 0.346%
Percentage of all national 2011 greenhouse gas emissions, including transportation and residential: 0.170%
Parent company sectors (in descending order of emissions): Power Plants, Other, Petroleum and Natural Gas Systems

Facilities displayed below: (display sectors at facilities) (display sectors)
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Facility Name	City	State	CO2 equivalent emissions (mt)	CO2 emissions (mt)	CH4 emissions (CO2 equivalent mt)	N2O emissions (CO2 equivalent mt)	Biogenic CO2 emissions (mt) **	Other emissions (CO2 equivalent mt) ***	Percent of total company emissions	Split *	EJ Minority %	EJ Black %	EJ Hispanic %	EJ Poor %	EJ Near Poor %
SPRINGERVILLE GENERATING STATION	SPRINGERVILLE	AZ	10,476,904	10,395,532	25,851	55,521	0	0	91.89%		16.0%	0.0%	15.6%	16.5%	21.6%
IRVINGTON GENERATING STATION	TUCSON	AZ	817,703	813,285	1,423	2,995	9,389	0	7.17%		52.9%	4.5%	42.3%	21.5%	44.7%
TUCSON ELECTRIC POWER COMPANY	Tucson	AZ	79,300	0	0	0	0	79,300	0.70%		52.0%	3.9%	41.5%	21.4%	44.7%
UNS GAS	Flagstaff	AZ	12,832	18	12,814	0	0	0	0.11%		34.9%	1.8%	18.3%	17.8%	34.2%
BLACK MOUNTAIN GENERATING STATION	Golden Valley	AZ	11,462	11,451	4	7	0	0	0.10%		17.1%	0.4%	9.4%	15.0%	39.2%
DE MOSS PETRIE GENERATING STATION	TUCSON	AZ	2,881	2,878	1	2	0	0	0.03%		50.8%	3.8%	41.0%	21.1%	43.8%

For more information on the data, see the technical notes.

* Split: if 50% appears in this column, then the facility's emissions have been split among two 50/50% ownership parent companies.

** Biogenic CO2 has not been included within the emissions totals anywhere else in this application.

*** "Other emissions" include HFCs, NF3, PFC, SF6, and other fluorinated gases.

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