1

by: William L. Hurley, Jr. P.E.November 9, 2011

Washington State Ocean Energy Conference - Offshore Wind Overview

2

Presentation Topics

1. Introduction

2. Overview of a Wind Farm Installation Project

3. Puget Sound Infrastructure

4. Various Floating Wind Turbine Concepts

Glosten has a staff of 70 Associates, consulting in many marine industry sectors:

• Oceanographic Research• Aerospace and Special Projects• Infrastructure• Energy, Oil and Gas• Commercial Shipping• Passenger Transportation• Renewable Energy (Offshore Wind)• Government Projects in Commercial Yards

The Glosten Associates

4

Glosten Position in Industry

Floating Tension-Leg Turbine Platform

We have advanced the technology of our TLTP and are now promoting world wide.

5

6

7

Washington State Assets and Infrastructure

1. History of Innovative, Major Offshore and Marine Construction Projects• Sealifts in 1970’s and 80’s supported Prudhoe Bay

Development and Alaska Pipeline Construction • Floating Bridges (new 520 bridge underway)• Tacoma Narrows Bridge – Cassion Installation

2. Major Marine Construction Firms with Equipment Based in Puget Sound• Manson Construction• Kiewit General• Cable Laying

3. Many Shipyards and Fabricators with Large Steel Through-put Capability, Supported by Strong Engineering Firms

8

Washington State Assets and Infrastructure

4. Oceanographic Research Support• U/W School of Oceanography and R/V Thompson• U/W Applied Physics Lab (APL)

5. Materials Transportation Infrastructure Strong• Tug and Barge Companies (Foss and Crowley plus

many more)• Rail Access to Waterfront Loading (Boeing Mukilteo

example)

6. Fabrication, Assembly and Staging Areas Plentiful (no water depth or air draft limitations)• Grays Harbor• Port Angeles

Floating Foundation Stabilizing Methods

Statoil HyWind Spar

WindFloat Semisub, Sway Spar, Glosten PelaStar

Blue H Tension Leg PlatformPhase III

Windsea and Nautica Windpower

NOVA (Novel Vertical Axis)

Development Stages

15

Research to Prove Feasibility• TRL 2 = concept development• TRL 3 = simulation

Technology Development• TRL 4 = basic model testing• TRL 5 = complete model test program

Technology Demonstration• TRL 6 = intermediate-scale prototype

deployed offshore

System Commissioning• TRL 7 = full-scale prototype deployed

offshore (“Relevant Environment”)• TRL 8 = full-scale prototype deployed

offshore (“Expected Environment”)

Closing Remarks

16

Floating Offshore Wind is Viable• Within 5 years we will see 4 full-

scale demonstration projects• Cost of Energy will be driven down

with technology developments• There will be a few platforms with

acceptable technology, each with advantages that suit different sites/turbines

European & Asian Initiatives will Develop Technology

When Washington State is ready for Offshore Wind, Floating Technology will be ready to apply