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Ctws ocean energy schaad
 

Ctws ocean energy schaad

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    Ctws ocean energy schaad Ctws ocean energy schaad Presentation Transcript

    • B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Integrating Renewables Ocean Renewable Energy: Why Would Anyone Buy It? Washington State Ocean Energy Conference November 8-9, 2011 Bremerton, WA John Schaad Customer Service Engineering, Generation Integration - Bonneville Power Administration Transmission Services 1
    • What is the Value of Ocean Energy?1. Ocean Energy as an Alternative Ancillary Service for Balancing Wind Generation “Variability”2. Offshore Ocean Energy as a “Non- Wires” Alternative to: 1)Building New 500-kV East-West Transmission to provide more ATC for New Wind Energy, and 2) Building costly coastal transmission system reinforcements such as new Static Var Compensators, and new 230-kV and 500-kV lines to serve coastal area load growth.3. Ocean Energy -- Cost Comparisons showing cost- effectiveness for State Renewable Portfolio Standards Fulfillment ------ (WA, OR, CA)4. Other Concepts? 2
    • Growth of Wind in BPA Balancing Authority 3
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    • Behavior Traits Volatile Ramping Behavior 5
    • BPA Balancing Authority Load and Total Generation Winter 2011 6
    • FCRPS (A Large, but Limited, Machine) Demands on Federal Columbia River Power System (FCRPS): – Meet ESA requirements – Serve load – Meet non-power requirements – Support variable generation BPA Balancing Authority uses FCRPS to supply Balancing Reserves required to integrate wind generation FCRPS ability to supply balancing reserves is limited; it can supply roughly the following amount of balancing reserves for wind: 1000 MW of DECs and 1000 MW of INCs 7
    • Increase the Pool of Balancing Reserves  The ability for the FCRPS to supply Balancing Reserves is limited. The greatest resource need is developing additional sources of balancing reserve capacity – Developing the ability to supplement the FCRPS by acquiring balancing services from the region’s natural gas facilities is important. – BPA began exploring this third-party supply concept in September 2010 with a three month purchase of 75 megawatts of DEC imbalance reserves from Calpine. – BPA currently has an Request for Proposals asking for additional DEC bids. – In the future, BPA will be looking at acquiring INCs along with DECs. 8
    • Customer Supplied Generation Imbalance  BPA has developed systems and processes to enable customers to self-supply a portion of their within hour balancing requirements from their own and/or contracted dispatchable resources for one or more wind plants. Under the CSGI Service: – Participant supplies its own Generation Imbalance. – BPA continues to supply load following and regulation.  Currently, approximately 1400 MWs of wind is supplying its own Generation Imbalance, reducing the balancing reserves that BPA must supply by more than 150 MWs. 9
    • Supplemental Service The Supplemental Service allows wind customers to acquire balancing service that is of a higher quality than that supported by the BPA balancing resources which, when exhausted, result in DSO-216 curtailment/limit instructions. Under Supplemental Service: – Wind customers may acquire and use additional balancing reserves in addition to the balancing reserves provided by BPA. – The additional reserve capacity for this service will be provided from non-federal resources either supplied by the customer or purchased by BPA on the customer’s behalf. 10
    • 1. Alternative Wind Balancing Resource Ocean Energy as an Alternative Ancillary Service for Balancing Wind Generation “Variability” 11
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    • 2. Possible Lower-Cost Alternative to Costly System Upgrades Offshore Ocean Energy as a “Non- Wires” Alternative to Building New 500-kV East-West Transmission to provide additional ATC for New Wind Energy, or Adding New 500-kV Lines and Costly Static Var Compensators to Support Load Growth and New Industrial Loads in Coastal Areas 14
    • Wind farms are clustered along the Columbia Rivernear existing BPA transmission and new transmission projects 15
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    • 3. Possible Lower-Cost Alternative for State Renewable Portfolio Standards Ocean Energy -- Cost Comparisons as a Resource for Fulfullment of State Renewable Portfolio Standards ------ (WA, OR, CA) 19
    • Wind Resources to 2020 • PNW and CA RPS targets would require ~10,000 MW of installed NW wind by 2020. • Nearly 6,000 MW currently operating or under construction. • Existing wind projects and wind interconnection requests to at least 14,400 MW. • Significant exceeds 2020 regulatory demand. • BPA has offered ~ 9,300 MW of transmission service to wind projects. 20Based on BPA’s wind interconnection queue and work done by E3
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    • ConclusionsOcean Energy can provide a valuable addition to thePNW generation mix, with its unique, consistent, morepredictable characteristics -- which are very marketable.As Wind’s contribution continues to grow, OceanEnergy can help provide needed Balancing and ATC.Integration of Ocean Energy presents some challenges.Longer term solutions will involve: • Integration of ocean energy into the FCRPS Operation • New utility operational protocols and business practices • Exploration of imbalance markets for Ocean Energy • New Off-Shore Ocean Energy Storage Developments • Other ideas and concepts? 22
    • About BPAService area (sq. miles) 300,000(Primarily Washington, Oregon, Idaho, Western Montana)Transmission circuit miles 15,215BPA substations 263 Grand Coulee Dam 2010 Balancing Authority (BA) Statistics FCRPS/CGS BA Total Nameplate Rating (MW) 21,600 Peak Generation (MW) 16,300 18,400 Average Generation (aMW) 6,900 8,000 Peak Load (MW) 9,800 Average Load (aMW) 5,900BPA is a Federal Power Marketing Administration in the U.S. Department of Energy 23
    • Your Feedback is Welcome!John SchaadCustomer Service Planning & EngineeringBonneville Power AdministrationEugene, Oregonjgschaad@bpa.gov541-988-7421 24