Full and Associate Members
GCSECA has two classifications of members:
- Full - Full members include electric cooperatives. They are divided into two classes - A for distribution cooperatives and B for generation and transmission cooperatives.
- Associates - Associate members include other organizations, including electrical districts, municipal utilities, tribal utilities and other organizations.
Full Members - Class A
Anza Electric Cooperative, Inc.
58470 Highway 371
Anza, California 92539
P.O. Box 391909
Anza, California 92539-1909
Telephone: (951) 763-4333
Fax: (951) 763-5297
www.anzaelectric.org
Duncan Valley Electric Cooperative, Inc.
379597 AZ 75
Duncan, Arizona 85534
P.O. Box 440
Duncan, Arizona 85534-0440
Telephone: (928) 359-2503
Toll Free: 1 (800) 669-2503
Fax: (928) 359-2370
www.dvec.org
Graham County Electric Cooperative, Inc.
9 West Center
Pima, Arizona 85543
P.O. Drawer B
Pima, Arizona 85543
Telephone: (928) 485 2451
Fax: (928) 485 9491
www.azgcec.coop
Mohave Electric Cooperative, Inc.
1999 Arena Drive
Bullhead City, Arizona 86422
P.O. Box 1045
Bullhead City, Arizona 86430
Telephone: Admin: (928) 763-4115; Customer Service: (928) 763-1100
Fax: (928) 763-6094
www.mohaveelectric.com
Navopache Electric Cooperative, Inc.
1878 W. White Mountain Blvd.
Lakeside, Arizona 85929-0308
Telephone: (928) 368-5118
Toll Free: 1 (800) 543-6324
Fax: (928) 368-1351
www.navopache.org
Sulphur Springs Valley Electric Cooperative, Inc.
350 N. Haskell Ave.
Willcox, Arizona 85643
P.O. Box 820
Willcox, Arizona 85644-0820
Telephone: (520) 384-2221
Fax: (520) 384-5223
www.ssvec.org
Trico Electric Cooperative, Inc.
8600 W. Tangerine Road
Marana, Arizona 85658
P.O. Box 930
Marana, Arizona 85653
Telephone: (520) 744-2944
Fax: (520) 744-2329
www.trico.coop
Full Members - Class B
Arizona Electric Power Cooperative, Inc.
1000 S. Highway 80
Benson, Arizona 85602
P.O. Box 670
Benson, Arizona 85602-0670
Telephone: (520) 586-3631
Fax: (520) 586-5343
Apache Station: (520) 384-4256
Apache Fax: (520) 384-6557
www.aepco.coop
Sierra Southwest Cooperative Services
1000 S. Highway 80
Benson, Arizona 85602
P.O. Box 2165
Benson, Arizona 85602
Telephone: (520) 586-5000
Fax: (520) 586-5343
www.sierrasouthwest.coop
Southwest Transmission Cooperative Inc.
1000 S. Highway 80
Benson, Arizona 85602
P.O. Box 2195
Benson, Arizona 85602
Telephone: (520) 586-5599
Fax: (520) 586-5279
www.southwesttransmission.coop
Associate Members
Aha Macav Power Services Inc.
P.O. Box 6870
Mohave Valley, AZ 86446
8780 S. Highway 95
Mohave Valley, AZ 86446
Telephone: (928) 768-2200
Fax: (928) 768-2262
Ak-Chin Energy Services
42507 Peters & Nall Road
Maricopa, AZ 85138
Telephone: (520) 568-3693
Fax: (520) 568-1181
Arizona Investment Council
2100 N. Central Avenue, Suite 210
Phoenix, AZ 85004
Telephone: (602) 257-9200
Fax: (602) 254-4300
www.arizonaic.org
Arizona Municipal Power Users' Association
501 E. Thomas Road
Phoenix, AZ 85012-3205
Telephone: (602) 393-1700
Fax: (602) 393-1703
City of Mesa Electric Utility
640 N. Mesa Drive
Mesa, AZ 85201
P.O. Box 1466
Mesa, AZ 85211-1466
Telephone: (480) 644-4444
Fax: (480) 644-3482
www.mesaaz.gov
Colorado River Agency - Branch of Electrical Service
12124 1st Avenue
Parker, AZ 85344
Telephone: (928) 669-7119
Fax: (928) 669-7119
Columbus Electric Cooperative Inc.
900 N. Gold Avenue
Deming, NM 88030
P.O. Box 631
Deming, NM 88031
Telephone: (575) 546-8838
Fax: (575) 546-3128
www.columbusco-op.org
Dixie-Escalante Rural Electric Association Inc.
71 E. Highway 56
Beryl, UT 84714-5197
Telephone: (435) 439-5311
Fax: (435) 439-5352
www.dixiepower.com
Electrical District Number Two of Pinal County
5575 N. Eleven Mile Corner Road
Casa Grande, AZ 85194
P.O. Box 548
Coolidge, AZ 85128
Telephone: (520) 723-7741
Fax: (520) 723-5252
www.ed2.com
Electrical District Number Three of Pinal County
41630 W. Louis Johnson Drive
Maricopa AZ 85138-5402
Telephone: (520) 424-9311
Fax: (520) 424-9065
www.ed3online.org
Electrical District Number Four of Pinal County
231 S. Sunshine Boulevard
Eloy, AZ 85131
P.O. Box 605
Eloy, AZ 85131
Telephone: (520) 466-7336
Fax: (520) 466-7778
www.ed4.com
Electrical District Number Five of Pinal County
231 S. Sunshine Boulevard
Eloy, AZ 85131
P.O. Box 576
Eloy, AZ 85131
Telephone: (520) 466-7336
Fax: (520) 466-7778
www.electricaldistrict5.com
ENCO Utility Services
8141 E. Kaiser Boulevard, Suite 212
Anaheim, CA 92808
Telephone: (714) 283-6081
Fax: (714) 283-6089
www.encous.com
Garkane Energy Cooperative Inc.
120 W. 300 S.
Loa, UT 84747
P.O. Box 465
Loa, UT 84747
Telephone: (435) 836-2795
Fax: (435) 836-2497
www.garkaneenergy.com
Gila River Indian Community Utility Authority
6640 W. Sundust Road, Site 5091
Chandler, Arizona 85226-4202
Telephone: (520) 796-0600
Fax: (520) 796-0672
www.gricua.net
Navajo Tribal Utility Authority
P.O. Box 170
Fort Defiance, AZ 86504
Telephone: (928) 729-5721
Fax: (928) 729-2135
www.ntua.com
Salt River Project
P.O. Box 52025
Phoenix, AZ 85072-2025
1521 N. Project Drive
Phoenix, AZ 85072
Telephone: (602) 236-5900
www.srpnet.com
San Carlos Irrigation Project
13805 N. Arizona Boulevard
Coolidge, AZ 85128
Telephone: (800) 648-8659
Fax: (520) 723-9266
Tohono O'odham Utility Authority
Highway 86 Mile Marker 112
Sells, Arizona 85634
P.O. Box 816
Sells, Arizona 85634
Telephone: (520) 383-2236
Fax: (520) 383-2218
www.toua.net
TransWorld Network Corporation
6800 N. Dale Mabry Highway, Suite 100
Tampa, FL 33614
Telephone: (877) 381-2667
Fax: (866) 762-9683
www.twncorp.com
Tri-State Generation and Transmission Association
P.O. Box 33695
Denver, CO 80233-0695
1100 W. 116th Avenue
Westminster, CO 80234-2814
Telephone: (303) 452-6111
Fax: (303) 254-6007
www.tristategt.org
Wellton-Mohawk Irrigation and Drainage District
30570 Wellton-Mohawk Drive
Wellton, AZ 85356
Telephones: (928) 785-3351 and (602) 254-5809
Fax: (928) 785-3389
www.wmidd.org
