HVDC Underground Cables The Empire Connection Paul M Grant, Ph.D. - PowerPoint PPT Presentation

HVDC Underground Cables The Empire Connection Paul M Grant, Ph.D. Physicist & Writer, Principal W2AGZ Technologies Paul M. Grant Energy Science & Technology Consulting Science Fellow EPRI w2agz@pacbell.net www.w2agz.com P. M. Grant Albany, NY, 2/10/04

P. M. Grant Albany, NY, 2/10/04

Sending Receiving End End DC Line Rectifier Inverter R Transformer V dc I dc FILTER FILTER Capacitor Filter i i i I dc I ac I ac t t t P. M. Grant Albany, NY, 2/10/04

P. M. Grant Albany, NY, 2/10/04

P. M. Grant Albany, NY, 2/10/04

P. M. Grant Albany, NY, 2/10/04

P. M. Grant Albany, NY, 2/10/04

P. M. Grant Albany, NY, 2/10/04

www.empireconnection.com Total Capacity 2000 MW DC P. M. Grant Albany, NY, 2/10/04

Bipole 1 - 1000 MW Lines / Substation 1 Substation 2 Cables 500 kV F F F F F F F F Pole 1 F 500 MW HVDC Circuit Details as Substation 1 Pole 2 F 500 MW F F F F F F F F Bipole 2 - 1000 MW Lines / Substation 1 Substation 2 Cables 500 kV F F F F F F F F Pole 1 F 500 MW HVDC Circuit Details as Substation 1 Pole 2 F 500 MW F F F F F F F F P. M. Grant Albany, NY, 2/10/04

Marcy New Alps Edic Scotland Fraser Gilboa (15.9 m) Coeymans Athens Leeds Athens (117.5 m) Long (117.5 m) Mountain Pleasant Valley Hurley Circuit #2: 1,000 MW, +/- 500 KV HVDC Circuit #1: 1,000 MW, +/- 500 KV HVDC Roseton Rock Tavern FishKill Buchanan S Millwood Buchanan N SprainBrook Dunwoodie Oak Point Tremont (8.3 m) Spuyten (4.4 m) Rainey (9.0 m) Duyvil West 49 th Street Astoria 15 th Street Farragut Empire Connection & UPNY/SENY 345 KV Transmission Grid November 5, 2003 P. M. Grant Albany, NY, 2/10/04

Benefits • Decreases pollution from power plants in and near New York City. • Lessens the demand for new power plants in and near New York City. • Helps budget-stretched Metropolitan Transportation Authority, New York State Thruway Authority and Amtrak by paying significant annual fees. • Creates large number of union jobs during installation. • Pays substantial taxes. • Encourages the development of clean and renewable power upstate. • Sets a precedent for underground invisible transmission. P. M. Grant Albany, NY, 2/10/04

Cost • $ 750 M ($ 400 M “banked”) • To Be Commissioned by Summer 2006 Return • Loan Payment (4%, 40 yrs, 750 M$) = 35 M$/yr • Labor, Overhead, Maintenance = 5 M$/yr • Tariff = 0.5 ¢/kWh • Capacity = 2000 MW • Profit @ 50% Capacity = 4 M$/yr • Profit @ Full Capacity = 48 M$/yr P. M. Grant Albany, NY, 2/10/04