RI Ocean Special Area Management Plan (SAMP)

8/8/2019 RI Ocean Special Area Management Plan (SAMP)

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ATM(2007) Potential WindATM(2007) Potential Wind

Farm SitesFarm Sites


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70 mwinds


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50 mpowerdensity


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MMS Use SummaryMMS Use Summary


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Major Fishing AreasMajor Fishing Areas(URI, EDC)(URI, EDC)


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Initial Concerns with Some SitesInitial Concerns with Some Sites

Extremewaves, costlystructure?

Extremewaves, closeto breakwater

Viable Sites,Resource useconflicts ??

Extreme

waves, maylimit seawardextent


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Ocean SAMP Study AreaOcean SAMP Study Area


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Study Area SelectionStudy Area SelectionInclude all state and contiguous federalwatersInclude sites for alternative tradeoff analysisrequired for permitting processConsistent with Army Corp DredgedMaterial Disposal Assessment


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Phased StudyPhased StudyPhase I - Ocean SAMP and associatedsupporting studiesPhase II- Detailed investigations(meteorological and oceanographicobservations, high resolution bottom, sub-

bottom, archeological, and fish habitmapping)


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Study DesignStudy DesignFollow state (CRMC) and MMS regulatoryframework for Offshore Alternative EnergyDevelopment and Production

Maximize the use of existing data and access tolocal expertise (data)Minimize cost by contracting with state entityPerform supporting studies to fill data and

information gaps, only as absolutely requiredBuild on Lessons Learned from siting of offshorewind farmsCollect sufficient data to allow Ocean SAMP to be

developed and defended


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Study ScheduleStudy ScheduleFinal site selection study 8 months*Selection of met. tower site 10 monthsFloating zone tool 12 months

( Developers identified, EIS initiated)Kick-off of Phase II, Detailed Investigations(meteorological tower**) (optional)13 monthsCompletion of Ocean SAMP 24 months

* Time from project initiation** Meteorological observations typically required

for 2 (3?) yrs


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Phase IPhase I -- Ocean SAMPOcean SAMPDevelopment of Plan and Stakeholder Involvement

Legal analysisCommercial and recreational fisheries

(Biological oceanography)

VisualizationTechnical and advisory councilOutreach and communications


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Major Supporting StudiesMajor Supporting StudiesPHASE I Ocean SAMPPHASE I Ocean SAMP

Refinement of Site SelectionWind, wave, and surge analysisMarine transportation (AIS)

Wind Farm Technology AssessmentGeology (surficial and sub-bottom), sea bedmappingPhysical oceanography


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US Army Corp Wave InformationUS Army Corp Wave Information

StudyStudy HindcastHindcast LocationsLocations


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Extreme Wave Heights and Periods ( 1/100yr)Extreme Wave Heights and Periods ( 1/100yr)

9 m, 15.6 sec

8.5 m, 14.5 sec4 m, 15 sec

8 m, 14.5 sec ??


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NOAA ENC BathymetryNOAA ENC Bathymetry --Wave Prediction 1/100yr)Wave Prediction 1/100yr)


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AIS Tracks Oct 31 to Nov 26,AIS Tracks Oct 31 to Nov 26,

2007 (ASA)2007 (ASA)


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Phase IPhase I -- Ocean SAMPOcean SAMPSupporting StudiesSupporting Studies

Meteorology and air quality Noise and electromagneticSea and shore birdsMarine mammals and turtlesCultural and archeological resources


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Phase II DetailedPhase II DetailedInvestigationsInvestigations

High resolution bottomand sub-bottom mappingOcean observations:

winds, currents, andwaves

Cape WindMeteorological

Tower


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Meteorological and OceanMeteorological and OceanObservation Tower Observation Tower

Meet immediate need for wind farm sitingLong term plan operated by URI as part of the

federal initiative on Integrated Ocean ObservingSystem(IOOS) (Regional Associations, Northeastand Mid Atlantic Bight)Leverage re-location of GoMOOS buoy

(Coordination with NOAA Surveying Vessel)


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GoMOOSGoMOOS Buoy Relocated to RIBuoy Relocated to RI


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Ocean and MeteorologicalOcean and Meteorological

Observation Tower (Tentative site)Observation Tower (Tentative site)

* Primary Site

* Secondary Site


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Availability of SupportingAvailability of SupportingEnvironmental DataEnvironmental Data

Winds none in RI coastal waters

Waves and currents none in RI coastal watersGeological parameters limited, sampling toocoarseBirds - only coastal observations ( Sachuest and

Napatree Points), none offshoreMarine Mammals limited data, needs tosynthesizedMarine Archeological Sites few observations


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NOAA Offshore ObservationNOAA Offshore Observation

BuoysBuoys


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USGS Sediment Sample and sidescan survey locations


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USGS Sub-bottom survey locations


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Cost SummaryCost Summary -- Phase IPhase IPhase I Major Study Elements

Phase I Ocean SAMP 51.7 %*

Refinement of Siting Study 8.5 %Sea Bed Mapping 13 %Birds 17.1 %Other Supporting Studies 9.7 %

TOTAL COST -$4 M* Percent of total cost


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Cost SummaryCost Summary -- Phase IIPhase IIPhase II Detailed Site Investigations

Meteorological and oceanographic 77 %observations (Met tower)Sea bed mapping 23 %

TOTAL COST - $2.6 M


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Sources of Renewable OceanSources of Renewable OceanEnergy in Rhode IslandEnergy in Rhode Island

Malcolm L. SpauldingProfessor, Ocean Engineering

Director, Center of Excellence inUndersea Technology

University of Rhode Island Narragansett, RI 02882

Briefing to:Coastal Resources Management Council

March 11, 2008


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Sources of OffshoreSources of OffshoreRenewable EnergyRenewable Energy

Ocean Thermal Energy Conversion(OTEC)Offshore windsWavesOcean currents In stream and head (impoundment) based tidal Mean current (e.g. Gulf Stream, river flow)


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Key Issues withKey Issues with RenewablesRenewablesLow energy density, many power unitsdistributed over large areas,Intermittent power production (1/3 time for wind and waves)Connection grid

Resource use conflictsEnvironmental impacts


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ATM (2007) Offshore Wind Sites


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Summary RI Power Summary RI Power Production PotentialProduction Potential

Offshore Energy Production Potential (MW)OTEC noneIn stream tidal currents 0.01Waves

10 to 100 unit farm(s) 0.408-40.8

Winds (all sites) 685Selected short listed sites 150 - 220

Renewable Energy Goal 150


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Cost SummaryCost Summary

Cost of power production per MWhr

Winds $96 to 137

Waves* $630* Only power generator capital costs; estimated 2.5

times if all project capitals costs


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OFFSHORE WINDS!OFFSHORE WINDS!


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In Depth PresentationIn Depth Presentation


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Ocean Thermal EnergyOcean Thermal EnergyConversion (OTEC)Conversion (OTEC)


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Ocean Thermal EnergyOcean Thermal EnergyConversionConversion

Requires deep water, source of cold (deep)water and warm surface water

No deep water sites exist in RI or southern New England shelf

NO POTENTIAL FOR RI


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OCEAN CURRENTSOCEAN CURRENTS


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Ocean CurrentsOcean Currents No strong mean currents in RI or adjacentwaters

Tidal range in RI waters is modest (1 m) sono possibility for impoundmentsIn stream tidal currents typically requirecurrent speeds greater than 1.5 to 2 m/sec (3to 4 kt) to generate power (Turbine cut inspeeds 0.5 m/sec or 1kt)


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In Stream Tidal CurrentsIn Stream Tidal CurrentsTwo potential sites: Sakonnet River Bridge andWarren River (Rte 114 Bridge)Sakonnet River not viable, peak current about 1.3

m/sec, no significant power generation potentialWarren River site limited local potential

Maximum currents 2.5 m/sec (5 kt)One turbine ( 1 m diameter, 2.5 m long)

1 kW or 8.7 MWhFull build out 10 turbines

10 kW or 87 MWh


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Warren River Bridge SiteWarren River Bridge Site

* TurbineSite


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Nearby Sites for InNearby Sites for In --StreamStreamTidal Current Power Tidal Current Power


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WAVE ENERGYWAVE ENERGY


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Worldwide wave energyWorldwide wave energyhttp://www.http://www. poemsincpoemsinc .org/.org/ FAQwaveFAQwave .html.html


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RI Wave Energy SettingRI Wave Energy SettingLow wave energy density, short fetchdistances, and wind blows primarily from

westLargest (most) waves from south andsouthwestRhode and Block Island Sound waves

Mean Wave period 4.5 secMean amplitude 1.04 m


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RI Coastal Wave EnergyRI Coastal Wave EnergyEstimateEstimate

Estimate of power production potential5.7 kW/m Annual avg wave power per

m of wave front off Block Island3.4 kW/m Annual avg wave power for

waves greater than 5 sec, 0.5 m

height from southern sector( maxwave exposure) ( produce power)


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Wave Power Estimate RIWave Power Estimate RI1.36 kW/m Annual avg wave power

after adjustment for operational efficiency (40%)

40.8 kW for typical unit ( 30 m ;100ft) wide357 MWhr per year per unit(52 households) (*6909 kWhr per

household)OPERATES ONLY 37% OF THE TIMESIMILAR TO WIND TURBINES


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Wave Power Estimate RIWave Power Estimate RITypical Wave Farm in RI 10 plants

408 kW(0.408 MW) or 3.570 BWhr RI Project, 15 MW Generation Capacity, ( 6 MWactual generation), 10 units, Total capital cost -$45 M, 1. 5 MW per unit, 20 yr life span (52.560BWhrs per yr)Cost* = $42.80 per MWhr ( **Est -$107 per MWHr)

Estimated cost using RI wave dataCost * = $630 per MWhr (**Est. $1575 per MWhr) Difference --- 15

*Considering facilities costs only ** Total capital

cost =2.5 x facility cost


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OFFSHORE WINDSOFFSHORE WINDS


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Wind Resource in the NortheastWind Resource in the Northeast

Source: AWSSource: AWS TruewindsTruewinds


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ATM (2007) Offshore Wind Sites


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ATM(2007) Potential Energy Estimates


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ATM(2007) cost summaryATM(2007) cost summary


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Wind Energy SummaryWind Energy SummaryAll offshore areas

685 MW

Sub-areasJ, K - 220 MWE, H - 140 MWH, K - 187 MW

Renewable Energy Goal 150 MWCost Range - $96 to 137 MWhr


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Summary Power ProductionSummary Power ProductionPotentialPotential

Offshore Energy Production Potential (MW)OTEC none

In stream tidal currents 0.01Waves

10 to 100 unit farm(s) 0.408-40.8

Winds (all sites) 685Selected short listed sites 150 - 220

Renewable Energy Goal 150


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Cost SummaryCost Summary

Cost of power production per MWhr

Winds $96 to 137Waves* $630

* Only capital costs for generator


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OFFSHORE WINDS!OFFSHORE WINDS!


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Turbines at one of Britains offshore wind farmsat Caister on Sea produce electric power.

RI Ocean Special Area Management Plan (SAMP)

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