Maps of the Western Interconnection
WECC has the following maps available:
- The WECC Planned Facilities Map illustrates future projects through the defined period. This map represents the kV, ownership, approximate location, and expected in-service date of tentative and committed projects through the defined period.
- The WECC Map of Principal Transmission Lines denotes existing transmission lines and other electrical devices through the defined period. This map represents the kV, ownership, and approximate location of existing projects and projects to be in-service through the defined period.
- For more available GIS data, please check out our System Performance Data Portal.
NOTE: If you are logged in with your WECC.org account, and still no maps are available above, please complete the following form and submit it to [email protected]:
Authorized Member Representatives of current WECC Member Organizations may order hard copies of the transmission maps from:
Falcon Publishing
1945 Falcon Way
Sandy, UT 84093
Phone: 801-633-2423
Email: [email protected]
| WECC Map of Principal Transmission Lines - January 2026 Edition | |
| Quantity | 34" X 27.5" |
| 1-2 | $14.00/each |
| 3-9 | $12.00/each |
| 10-24 | $10.00/each |
| 25-49 | $9.00/each |
| 50-149 | $8.50/each |
| WECC 10 Year Planned Facilities Map - February 2026 Edition | |
| Quantity Minimum order of 2 for the 10 year map | 34" X 30" |
| All quantities | $15.00/each |
All maps are printed full color on one side. Order confirmations will be sent via email including an invoice with a link to allow for online payment. Credit cards accepted. Price per map is based upon quantity to each shipping address. All orders shipped via USPS Ground mail which may take up to 7 days. Regular postal charges for shipping and handling apply and will be added to each order. Priority mail available at added cost. Canadian addresses add an additional $5-15 surcharge based on shipment weight. Orders can be placed by email (preferred) or by calling 801-633-2423. Custom printing and sizes available upon request at added cost. For questions, confirmations, and custom printing please call Mark at 801-633-2423.