1. Portsmouth RI Town Wind Turbine Generator EBC RI Chapter Program RI Energy Programs – Federal Stimulus, RGGI and Renewable Energy Fund Presented by PEDC Sustainable Energy Subcommittee Gary Gump Chairman April 03, 2009 www.portsmouthRIenergy.com

2. Green is Good BUT.. Building a WTG is an Economic Decision

3. Needs Wind Space Support and “all the other things”

4. Wind and Space Sufficient Wind to Generate Power –Wind Models or Met Tower? –Capacity Factor Wind Doesn’t blow all the time Typically CF is 20%-30% over a year Space –NIMBY –Some concerns over catastrophic failure –Ice slinging –The higher the better Power proportional to cube of wind speed

5. Support WTG is a ‘community investment’ Provide current and balanced information and address “hot buttons” –Counter “misinformation” –Affect on wildlife –Sound –Visual affect Public Relations –Need initial buy in –Continual positive reinforcement Portsmouth did: –Web Site: updated frequently, FAQs –Mail Survey –Public Workshops –Referendum Create Community “Ownership”

6. … and All the Other Things Wind Model Economic Model Choosing a contractor Warranties Insurance Operation and Maintenance How to Pay for It Revenues - Distribution Electric Interconnect Public Utilities Commission Federal Energy Regulatory Commission Funding Federal/State Legislation Liaison with State Officials Large Equipment Access to Site Geology Environment/Health/DEM Affect on Wildlife Historical/Archeological FAA Town Zoning Permitting Risk Management Project Management

7. CREBApplication Submittal Apr 06 StateGrantApproval Apr 06 FeasibilityStudyConsultant RFP II Feb 06 Feasibility Study Jul 06 – Sep 07 Wind Project Bond Referendum Nov 07 Sign Turbine Contract Apr 08 Installation Preparations Apr 08 – Nov 08 Turbine Commissioning March 09 2006 2007 2008 CREBApproved Nov 06 Nov 06 Workshop With TC Feb 07 Request Bond Legislation Jan 07 RFQ for Turbine and Turbine Install Dec 07 Report Feasibility Study to TC and SC Sep 07 TC/SC Approve Project? Referendum Ballot for Project YES NO YES NO TC/SC Project Approval Oct 07 Portsmouth Wind Turbine Project Timeline PEDC Sustainable Energy Subcommittee Members Gary Gump, Chair Bob Hamilton Doug Smith Steve Lake John Palmieri Rich Talipsky 2009 2004-05 - Ideas - Ideas - Exploratory - Decision to go forward With a plan

8. 98958 “Behind the Meter” The “Grid The “Grid” Electricity Used (retail) Electricity Supplied (wholesale) Turbine Supplied Electricity High & Middle School average about 950,000 kWh/yr each 600 kW Turbine Production about 1,500,000 kWh/yr Power Generation and the “Grid” (Behind-the-meter (Pre-2008 Laws) ) High School Portsmouth RI EDC June 2007 98958 HS Meter Other Town Meters

9. 98958 The “Grid The “Grid” Turbine Supplied Electricity 1.5 Mw Turbine Production about 3,300,000 kWh/yr Power Generation and the “Grid” (Per 2008 Law) High School Portsmouth RI EDC June 2007 98958 HS Meter Other Town Meters 98958 “Virtual” Electric Meter Credit for WTGPowerProduced Municipal Total +/- 4,200,000 kwH/yr

10. March 2008

11. April 2008

12. May 2008

13. August 2008

17. January 2009

20. February 2009

22. March 2009

23. Total Height (base to blade tip)------ 336 Feet Height Above Sea Level (to base) – 188 feet Total Height Above Sea Level (to blade tip) – 524 Feet Blades –------------------------ 123 Feet, 6 Tons each Blade Hub – Diameter ------ 15 Feet., 19 Tons Tower height to Hub –------ 213 Feet 3 sections -------------------- 115 Tons total 3 sections -------------------- 115 Tons total Nacelle –_____________12X15 Feet – 68 Tons Total Weight –-------------------------------- 440,000 Pounds On-Line March 2009

24. Portsmouth Municipal Wind Energy Activity See www.portsmouthRIenergy.comwww.portsmouthRIenergy.com Questions: e-mail questions@portsmouthRIenergy.com questions@portsmouthRIenergy.com