StabilityStability

SurvivabilitySurvivability

Combined RES Combined RES Capture/Conversion Capture/Conversion

CapacityCapacitySmaller Ocean footprintSmaller Ocean footprintLeeward Calm waterLeeward Calm water

Berthing zoneBerthing zone

MULTI-TASK APPSMULTI-TASK APPSTransport, EnergyTransport, Energy

AquacultureAquacultureLeisureLeisure

ADAPTABILITYADAPTABILITYMulti-task platformMulti-task platformBreakwater, MarinaBreakwater, Marina

Commercial PortCommercial Port

Modular, MonolithicModular, MonolithicConstructionConstruction

OffshoreOffshoreDeep-oceanDeep-ocean

Floating PlatformFloating Platform

Float Inc’sFloat Inc’sOffshore FloatingOffshore Floating

Ocean EnergyOcean EnergySystemSystem

(OFOES)(OFOES)

Float Inc. Pneumatically Stabilized Float Inc. Pneumatically Stabilized Platform (PSP)Platform (PSP)

Primary Design as a Deep Ocean Offshore Floating Primary Design as a Deep Ocean Offshore Floating Platform Platform

Float Inc. PSP Marine Technology Characteristics Float Inc. PSP Marine Technology Characteristics Confirmed & ValidatedConfirmed & Validated Defense Advanced Defense Advanced

Research Project Research Project Agency (DARPA)Agency (DARPA)• Confirmation of PSP Confirmation of PSP

marine technology marine technology (1995 – 1996) (1995 – 1996)

Office of Naval Office of Naval Research (ONR)Research (ONR)• Validation of PSP Validation of PSP

marine technology marine technology characteristics characteristics (1997 – 1998)(1997 – 1998)

Float Inc. Float Inc. Pneumatically Pneumatically Stabilized Platform Stabilized Platform (PSP) marine (PSP) marine technology chosen for technology chosen for inclusion in a national inclusion in a national R&D program U.S.A. – R&D program U.S.A. – Department of DefenseDepartment of Defense““Mobile Offshore Base Mobile Offshore Base Program”Program”

Float Inc. PSP Marine TechnologyFloat Inc. PSP Marine TechnologyCharacteristics Confirmed & Characteristics Confirmed &

ValidatedValidated Stable with large Variable Deck Loads Stable with large Variable Deck Loads

CapabilitiesCapabilities• At-sea motion stability and structural loads At-sea motion stability and structural loads

mitigation by decoupling the “hull” from ocean mitigation by decoupling the “hull” from ocean wave pressures through the use of air buoyancy, wave pressures through the use of air buoyancy, which is both compressible and mobile within the which is both compressible and mobile within the PSP platform cylinders.PSP platform cylinders.

ModularModular• PSP cylinders assembled into modulesPSP cylinders assembled into modules• Modules assembled into PSP platform configurationModules assembled into PSP platform configuration

Modules assembly can be accomplished in Sea Modules assembly can be accomplished in Sea State 3 levelsState 3 levels

Monolithic platformMonolithic platform• Modular construction and assemblyModular construction and assembly

Float Inc. PSP Marine TechnologyFloat Inc. PSP Marine TechnologyCharacteristics Confirmed & Characteristics Confirmed &

ValidatedValidated ExtensibleExtensible

• PSP modular construction permits extension PSP modular construction permits extension of existing PSP without interruption of existing of existing PSP without interruption of existing activities onboardactivities onboard

MobileMobile• PSP can be repositioned to a different PSP can be repositioned to a different

area/zone as the PSP is simply retained in area/zone as the PSP is simply retained in position by the appropriate anchorage systemposition by the appropriate anchorage system

Long lifeLong life• PSP is constructed of post constraint, PSP is constructed of post constraint,

reinforced concrete having a useful life reinforced concrete having a useful life exceeding 70-years.exceeding 70-years.

• No dry-docking required, and requires no No dry-docking required, and requires no significant maintenance of the basic hull.significant maintenance of the basic hull.

< A Module

Adjustable Air Ducting >

< Mobile Buoyancy Air Exchange

Float Inc. Pneumatically Stabilized Platform Float Inc. Pneumatically Stabilized Platform (PSP)(PSP)

Wave – Incident / Wave - Transmitted = Attenuation of Wave – Incident / Wave - Transmitted = Attenuation of Wave Energy ModelWave Energy Model

L

ai a

t

h

B

L

Under Platform field

Incident Transmitted

Energy Flows

Office of Naval Research (ONR) Model Tank Test Results concerning wave attenuation revealed:

Wave AttenuationWave Period Wave Height (% and meters) 7 seconds 0m90 94% & 0m059 seconds 2m50 72% & 0m7012 seconds 5m50 50% & 2m75 16 seconds 10m00 63% & 3m7020 seconds 15m50 54% & 7m13

Float Inc. Float Inc. Rho-Cee Wave Energy Rho-Cee Wave Energy

ConverterConverterInitial tank testing performedInitial tank testing performed

at Ohmsett - BOEM tank testing facility in December 2009at Ohmsett - BOEM tank testing facility in December 2009

Available power comparison,wind and wave.

Some pics/ideas forSome pics/ideas for

Oceans Offshore Energy Oceans Offshore Energy SystemSystem

Offshore Floating Ocean Energy Offshore Floating Ocean Energy SystemSystem

proposed and presented byproposed and presented by

Float Inc Offshore Floating Ocean Float Inc Offshore Floating Ocean Energy System (OFOES) accommodates Energy System (OFOES) accommodates

onboard theonboard thePneumatically Stabilized Platform Pneumatically Stabilized Platform

(PSP)(PSP) Offshore Wind EnergyOffshore Wind Energy Offshore Wave EnergyOffshore Wave Energy Offshore Ocean Current Offshore Ocean Current

EnergyEnergy Potential Energy Storage Potential Energy Storage

(PES)(PES) Ancillary Applications:Ancillary Applications:

• Aquaculture & related Aquaculture & related activitiesactivities

• Desalination plantDesalination plant• LNG Liquefaction & Re-LNG Liquefaction & Re-

gasification Facilitiesgasification Facilities• Offshore Ro-Ro and/or Offshore Ro-Ro and/or

Container PortContainer Port• NB: Not an exhaustive NB: Not an exhaustive

listlist All on the same All on the same Platform - PSPPlatform - PSP

10'

10'

20'

20'

30'

0

0 20' 40'WL WL

10' 30'

PSP

Float Inc Pneumatically Stabilized Platform

Deep-ocean floating PlatformStable + Extensible

Long lifeRenewable Energy Capture &

StorageAncillary Applications

Floating Real-Estate Applications

Hydrokinetic turbineRenewable energy source

Ocean Current

Wind turbineRenewable energy source

Wind Energy Rho-Cee Wave Energy ConverterRenewable energy source

Wave Energy

PSP Potential Energy StorageStorage & Reconstitution of

Renewable Energy Sources Electricity

Offshore Wind Turbine FarmOffshore Wind Turbine Farmonboard the Float Inc onboard the Float Inc

Offshore Floating Ocean Energy System Offshore Floating Ocean Energy System (OFOES)(OFOES)

Structural stability that allows Structural stability that allows any standard Offshore Wind any standard Offshore Wind Turbine to be easily deployed.Turbine to be easily deployed.• Wind Turbine foundations Wind Turbine foundations

same as onshoresame as onshore• Wind Turbines at end-of-life Wind Turbines at end-of-life

can be replaced onboard the can be replaced onboard the OFOESOFOES

Access, maintenance and Access, maintenance and operation similar to onshoreoperation similar to onshore

Transformer station in-the-dryTransformer station in-the-dry One grid connection cable to One grid connection cable to

shoreshore Storage of spare and repair Storage of spare and repair

partsparts No new specialized vessels No new specialized vessels

needed to transport needed to transport equipment or personnel equipment or personnel directly from ports to platformdirectly from ports to platform

Waves, Winds ± 60°

Calm zone

Calm zone

Wind & Wave Together - Extending the Wind Turbine farm

Complimentary on the Float Inc Offshore Floating Ocean Energy System

(OFOES)PSP span @ 1 200m Rho-Cee WEC width @ 1 040m

Wind Turbines spacing @ 200m (extendable-leeward) with rotor diameter @ 90m

Wind Turbine rating @ 3MW Rho-Cee WEC rating @ 60kW/m

200m dock - struts 200m x 5m concrete culvert pipe, w/rails

Total Power Rating: 98MW

PES Storage: ~12MW-Hr, cold

Calm zone

Case Study Example of an Offshore Zone Case Study Example of an Offshore Zone Preliminary Calculations: Galicia, SpainPreliminary Calculations: Galicia, Spain

source 40+ year Wave Data Historysource 40+ year Wave Data History

Annual Annual incident wave incident wave powerpower

RecognizedRecognized 4040 kW/mkW/m

Incident wave Incident wave power power multiplied by multiplied by

8,760 8,760 hours/yearhours/year

350,400350,400 kWh/m – yearkWh/m – year

Rho-Cee WECRho-Cee WEC Economic Economic optimization optimization capture rate capture rate

60% 60%

210210 MWh/m – yearMWh/m – year

Rho-Cee WECRho-Cee WEC Wave energy Wave energy conversion rate conversion rate

78%78%164164 MWh/m – yearMWh/m – year

Rho-Cee WECRho-Cee WEC Wave-front Wave-front spanspan

1,040meters1,040meters170,547170,547 MWh/yearMWh/year

Average annual Average annual homehome

Electricity use Electricity use 8MWh8MWh 21,31821,318 HomesHomes

Annual Annual incident wave incident wave powerpower

RecognizedRecognized 7070 kW/mkW/m

Incident wave Incident wave power power multiplied by multiplied by

8,760 8,760 hours/yearhours/year

613,200613,200 kWh/m – yearkWh/m – year

Rho-Cee WECRho-Cee WEC Economic Economic optimization optimization capture rate capture rate

60% 60%

368368 MWh/m – yearMWh/m – year

Rho-Cee WECRho-Cee WEC Wave energy Wave energy conversion rate conversion rate

78%78%287287 MWh/m – yearMWh/m – year

Rho-Cee WECRho-Cee WEC Wave-front Wave-front spanspan

1,040meters1,040meters298,457298,457 MWh/yearMWh/year

Average annual Average annual homehome

Electricity use Electricity use 8MWh8MWh 37,30737,307 HomesHomes

Case Study Example of an Offshore Zone Preliminary Calculations: Belmullet, Ireland

source SOWFIA DMP & NOAA Hindcast 7-year Wave Data History

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