| 30% Business Tax Credit for Solar (Vermont) + | 133 State St. + |
| AEP (Central and North) - Residential Energy Efficiency Programs (Texas) + | 4301 Westbank Drive, Bld. A, Ste. 250 + |
| AEP (SWEPCO) - Residential Energy Efficiency Programs (Texas) + | 4421 W. Loop 281 + |
| AEP Ohio (Electric) - Residential Energy Efficiency Rebate Program (Ohio) + | 6031 East Main Street + |
| AEP Ohio (Gas) - Residential Energy Efficiency Rebate Program (Ohio) + | 6031 East Main Street + |
| AEP Ohio - Commercial Custom Project Rebate Program (Ohio) + | 6031 East Main Street + |
| AEP Ohio - Commercial Energy Efficiency Rebate Program (Ohio) + | 6031 East Main Street + |
| AEP Ohio - Commercial New Construction Energy Efficiency Rebate Program (Ohio) + | 2740 Airport Drive, Suite 160 + |
| AEP Ohio - Renewable Energy Credit (REC) Purchase Program (Ohio) + | 850 Tech Center Drive + |
| AEP Ohio - Renewable Energy Technology Program (Ohio) + | 850 Tech Center Drive + |
| AEP Public Service Company of Oklahoma - Non-Residential Efficiency Rebate Program (Oklahoma) + | 212 East 6th Street + |
| AEP Public Service Company of Oklahoma - Residential Efficiency Rebate Program (Oklahoma) + | PO Box 201 + |
| AEP SWEPCO - CitySmart Program (Texas) + | 4301 Westbank Drive, Bld. A, Ste. 250 + |
| AEP SWEPCO - Commercial Solutions Program (Texas) + | 4301 Westbank Drive, Bld. A, Ste. 250 + |
| AEP SWEPCO - Commercial and Industrial Energy Efficiency Rebate Programs (Arkansas) + | 101 West Township + |
| AEP SWEPCO - Residential Energy Efficiency Rebate Program (Arkansas) + | 8500 W. Markham + |
| AEP SWEPCO - SCORE Program (Texas) + | 4301 Westbank Drive, Bld. A, Ste. 250 + |
| AEP SWEPCO - SMART Source Solar PV Program (Texas) + | 1515 S. Capital Highway, Suite 110 + |
| AEP Texas - Commercial and Industrial Energy Efficiency Rebate Program (Texas) + | 428 Travis Street + |
| AEP Texas Central Company - CitySmart Program (Texas) + | 4301 Westbank Drive, Bld. A, Ste. 250 + |
| AEP Texas Central Company - Commercial Solutions Program (Texas) + | 4301 Westbank Drive, Bld. A, Ste. 250 + |
| AEP Texas Central Company - ENERGY STAR New Home Program (Texas) + | 4301 Westbank Drive, Bld. A, Ste. 250 + |
| AEP Texas Central Company - SCORE Program (Texas) + | 4301 Westbank Drive, Bld. A, Ste. 250 + |
| AEP Texas Central Company - SMART Source Solar PV Rebate Program (Texas) + | 1515 S. Capital Highway, Suite 110 + |
| AEP Texas North Company - CitySmart Program (Texas) + | 4301 Westbank Drive, Bld. A, Ste. 250 + |