HomeMy WebLinkAbout2024.08.01.06 Roadbelt Intertie Pitch Sheet (Final)August 1, 2024
DRAFT
ROADBELT INTERTIE
PROJECT
Enhancing Railbelt Reliability and Resilience
Status: Conceptual
Capacity: 230kV
Length: 388 miles
Right of Way: Near existing roads
Construction: 6-8 years
Cost: $566 Million (2020$)
PROJECT SUMMARY
The Roadbelt Intertie Project would construct a new 230 kilovolt (kV) transmission
line from Sutton to Glennallen (135 miles) to Tok (142 miles) to Delta Junction (111
miles), interconnecting island road system power utilities and creating a parallel path
between the two most populated roadbelt areas. Alternative utility interconnection
configurations with 230 kV lines between Glennallen and Delta Junction and a
smaller 138 kV radial line to Tok from either Glennallen or Delta Junction are
possible. Eastern interior has undeveloped hydroelectric, wind, and solar resources
that could be developed if a larger market (Railbelt region) was interconnected.
The Roadbelt Intertie Project line would provide a conduit of at least 75 megawatts
firm power from the Central load region of Anchorage and the Matanuska Valley to
the eastern interior communities and the Northern load center of Fairbanks. The
Roadbelt Intertie allows additional communities to share the benefits of expanded
hydroelectric, wind, and solar renewable energy in Southern, Central, and Northern
Regions. (Continued on back)
Benefits Opportunities
Increased resilience and
redundancy of the Alaska Intertie
Additional conduit for power to
transmit between regions
Reduced line losses
Allow additional energy to be
delivered to consumers
Increased capacity to bring on
utility-scale renewable projects
Development of renewable
resources in an area of the state
that were previously uneconomical
due to lack of proximity to
transmission
PROJECT OVERVIEW
2024-TBD
813 W Northern Lights Blvd.
Anchorage, AK 99503
www.akenergyauthority.org
info@akenergyauthority.org
T: (907) 771-3000
F: (907) 771-3000
PROJECT OVERVIEW (CONT)
AEA provides energy solutions to meet the unique needs of Alaska’s rural and
urban communities. Established by the Alaska Legislature in 1976, its mission
is to reduce the cost of energy throughout Alaska. As Alaska’s lead agency
for statewide energy policy and program development, AEA collaborates
with utilities, private companies, legislators, local governments, and Alaskan
energy innovators to diversify the state’s energy portfolio increasing resiliency,
reliability, and redundancy.
AEA OVERVIEW
BUDGET Natural gas energy will replace diesel energy during periods of low renewable
energy. This line will add critical resilience and redundancy to Railbelt
transmission. There is only one transmission line, the Alaska Intertie, which
transmits power north and south along the Railbelt. The Roadbelt Intertie is
capacity-limited. This line would provide an alternate route if Intertie energy is
interrupted by maintenance or failure.
PROJECT STATUS
The Roadbelt Intertie Project is conceptually designed and cost estimated.