Alaska Online Public Notices #LAS 36048

Temporary Deployment of Teledyne ADCPs and DeepWater Buoyancy Mounts for Tidal Energy Assessment in Isanotski Strait, Alaska

This opportunity involves the temporary deployment of tidal research equipment in Isanotski Strait, Alaska, to support hydrokinetic energy assessment: - Government Buyer: - City of False Pass, Alaska - OEMs and Vendors: - Teledyne RD Instruments (manufacturer of Workhorse Sentinel ADCPs) - DeepWater Buoyancy, Inc. (manufacturer of bottom mount structures and anchors) - Products/Equipment Requested: - Two Teledyne RD Instruments Workhorse Sentinel Acoustic Doppler Current Profilers (ADCPs) - Part number: Workhorse Sentinel - Frequency options: 1200, 600, 300 kHz - Quantity: 2 - Two DeepWater Buoyancy Bottom Mount Structures with Gravity-Based Anchor and Mooring Line - Part number: BTM-AL50-B - Quantity: 2 - Two High-Visibility Surface Buoys with NOAA Fisheries-Approved In-Line Buoy Line Breakaway - Quantity: 2 - Services: - Surface ADCP surveys to select deployment sites - Deployment, monitoring, and retrieval of equipment - Data collection and analysis for tidal flow assessment - Notable Requirements: - All equipment is temporary; no permanent infrastructure will be installed - Each ADCP will be deployed for approximately 35 days, with site restoration completed within one day after retrieval - Equipment must include entanglement mitigation features (NOAA Fisheries-approved breakaway lines) - Final deployment locations determined after initial surveys

Description

The Southcentral Regional Land Office has received an application from Ocean Renewable Power Company, Inc. for a permit to temporarily install two Acoustic Doppler Current Profiler (ADCP) devices in Isanotski Strait near False Pass, Alaska. The devices will be deployed at two sites within submerged lands to research tidal flows and identify locations for future hydrokinetic devices. Each device will be deployed for approximately 35 days during the summer of 2026 (June to October) and then removed. Public comments are invited until July 1, 2026.

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