Four Corners Wind Resource Center Webinar Repurposing Navajo Generating Station Transmission: Potential for Wind and Solar Development April 25, 2017

About Apex Apex Is a Clean Energy Company We Acquire Energy Resources We Develop Energy Projects We Build, Own, and Operate Energy Facilities We appreciate this opportunity to dialogue with the Four Corners Wind Resource Center and its partners, Northern Arizona University, the Interwest Energy Alliance, and Utah Clean Energy.

Apex U.S. Project Portfolio Wind Project Operating / Under Construction Solar Project Financed 2,226 Placed in Operation 1,962 Under Construction 264 Development 14,260 Active 12,910 Final Review 1,350

Operational Facilities 1,962 MW operating 300 MW Canadian Hills, OK 300 MW Balko, OK 298 MW Kingfisher, OK 152 MW Grant, OK 98 MW Hoopeston, IL 165 MW Cameron, TX 147 MW Grant Plains, OK 299 MW Kay, OK 202 MW Cotton Plains, TX

Projects Under Construction 264 MW under construction 15 MW Phantom Solar, TX 249 MW Chapman Ranch, TX

Spotlight on Phantom Solar Solar facility on-site at U.S. Army Garrison Fort Hood Bell County, Texas COD expected April 2017 15 MWac capacity 28-year supply agreement with the Defense Logistics Agency–Energy Combines with output from Apex’s Cotton Plains Wind facility in Floyd County, Texas Apex is developing several solar projects across the United States.

Navajo Generating Station The Navajo Generating Station is a 2,250-megawatt coal-fired power plant located on the Navajo Indian Reservation near Page, Arizona. The four utility owners of the power plant voted to operate it no longer than 2019. The Navajo and Hopi Nations are considering other uses for the land and associated transmission, including solar and wind generation. Image source: Tucson Electric Power IRP

Wind Resource – New Mexico There is a significant low-cost, late-p.m. generation wind energy resource from New Mexico that can be supplied to western markets.

Wind Resource – Arizona Arizona has a modest wind resource: TEP 100 MW project DOE study – 100 MW Hopi wind energy project, south of Winslow, AZ Recent proposals could provide a market for wind energy in AZ.

Solar Resource There is a robust solar resource in the region.

Potential for a Solar Plant Location 4 Corners Region Capacity ~250 MWs Target COD 2019 GHI Resource Value 5.7 kWh/m2/day Jobs Created Construction: ~ 750 Operation: ~ 45 Land area 2,200 acres Siting Four Corners Region Entitlements and Permitting CEC from Arizona Corporation Commission (Arizona Power Plant and Transmission Line Siting Committee) for transmission line (if not on tribal land) Bureau of Indian Affairs (if on tribal land)

Benefits - Solar Plant Employment opportunities – general laborers, electricians, carpenters. Revenue from lease payments, consulting fees and the purchase of local materials. Community and educational benefits Low resource impact - no water use, no air emissions, and no waste production. 5.7 kWh/m2/day

Benefits - Solar Plant Example: 250 MW Moapa Southern Paiute Solar Project Commissioned 3/17/17 Occasioned by closing of Reid Gardner coal plant First utility-scale solar plant built on tribal land

Thank you! Jessie Audette Senior Director, Project Development Apex Clean Energy jessie.audette@apexcleanenergy.com