Deepwater Wind - Energy Highway

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! II. ! Project Description The Deepwater Wind Energy Center (DWEC) will be the first regional renewable energy center supplying power to New York, as well as neighboring states. It will supply Zone K with up to 2,900 GWh per year of clean, renewable power from the nation’s first regional offshore wind energy center. Deepwater’s innovative structure also provides Zone K with access to firming energy and capacity from ISO-NE, via a new 600 MW hybrid HVDC submarine transmission line, the New England-Long Island Interconnector (NELI). This combination of offerings provides Zone K with a new source of up to 600 MW of firm energy and capacity. A Project that Achieves the Energy Highway and LIPA’s Goals. In addition to providing energy, capacity, environmental attributes, and firm transmission capacity, the Project delivers a combination of benefits to Zone K and the rest of New York State that cannot be provided by conventional supply resources or by a collection of smaller-scale renewable energy projects: • Reduces congestion in Zone K by supplying 2,900 GWh/year of power and enables the delivery of an additional 2,400 GWh/year from southern New England; • Enhances reliability by providing a new link to a neighboring electric grid (ISO- NE) and by supplying Zone K capacity to help meet local reliability requirements; • Utilizes advanced technologies; ! 7
! ! • Supports development of a new green industry in downstate New York; • Satisfies approximately 52% of New York State’s remaining 2015 RPS goal and 100% of LIPA’s 2020 renewable energy supply goal; • Satisfies LIPA’s entire greenhouse gas emissions reduction target; • Diversifies downstate New York’s electric fuel supply; and • Provides long-term supply flexibility.! Offshore Wind Plant. DWEC will consist of 150 WTGs, each with a nameplate capacity of 6 MW, and will be built in two arrays of 450 MW each, for a total of 900 MW. Deepwater’s analysis demonstrates that the Project site could accommodate up to 200 WTGs, allowing for future expansion. DWEC is the most advanced second-generation offshore wind plant in the United States and is widely expected to be one of the first utility-scale offshore wind farms to receive permits and site control. Given its location in a high wind-speed area, the 900 MW Wind Plant will have a capacity and peak coincidence factors that are superior to those of near-shore offshore wind plants and that far exceed those of land-based wind farms in the Northeast. Controllable HVDC Transmission Network. NELI is modeled after similar offshore networks that have been proposed in Northern Europe and elsewhere. Using commercially tested technologies similar to those already in use in New York, NELI is a 600 MW HVDC transmission facility that will connect the Brayton Point, Massachusetts high-voltage substation in ISO-NE with LIPA’s Shoreham substation, and will include an offshore substation to which DWEC will interconnect and deliver power. The distance from Brayton Point to the Wind Plant is approximately 38 miles; and from the Wind Plant to Shoreham, approximately 98 miles. The Shoreham interconnection point has a number of advantages including adequate space for the location of a converter station, direct access to Long Island Sound, and sufficient electrical capacity to handle a new 600 MW interconnection without the need for significant upgrades. Additionally, interconnecting at Shoreham increases the efficiency of the LIPA transmission system by supplying the under-served eastern load pocket and by more fully utilizing the transmission infrastructure that is currently in place. NELI not only enables LIPA to receive the benefits of firm power by firming an intermittent wind resource, it also enhances the economic efficiency of DWEC by improving the utilization of the Wind Plant’s transmission infrastructure and providing Zone K access to cost effective supply in the ISO-NE market. Supply of Firm Power and Zone K Capacity. The 900 MW Wind Plant will deliver power to the NELI offshore substation and the first power generated, up to NELI’s 600 MW limit, will be transmitted to Zone K. With Deepwater’s Project, NY-ISO’s Zone K will receive a firm block of 600 MW of power, most of which will be generated by DWEC. During periods when the output of the Wind Plant is greater than 600 MW, the ! 8
Page 2 and 3: BY COURIER AND ELECTRONIC MAIL May
Page 4 and 5: ! Executive Summary ! Enabled by th
Page 6 and 7: ! ! A final longer-term phase of de
Page 8 and 9: ! ! The Board of Managers also incl
Page 12 and 13: ! ! additional power will be divert
Page 14 and 15: ! ! As estimated by the New York St
Page 16 and 17: ! Environmental Benefits ! Improved
Page 18 and 19: ! ! Sources of Financing The projec
Page 20 and 21: ! ! approved Private Aid to Navigat
Page 22 and 23: ! VI. Interconnection ! Deepwater h
Page 24 and 25: ! VII. Technical ! The Project’s
Page 26 and 27: ! VII. Construction & Design Projec
Page 28 and 29: ! ! VIII. Socio-economic Considerat
Page 30 and 31: ! IX. Project Status ! On March 31,
Page 32 and 33: ! XI. Other Considerations ! Future
Page 34: ! ! Interconnections In New York, S

Deepwater Wind - Energy Highway

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