Bringing Power from the North Massachusetts Restructuring Roundtable February 29, 2008 Gordon van Welie President and CEO ISO New England, Inc.

New England’s Renewable Requirements to Double Over the Next Decade Planning process must accommodate new needs -- and continue progress on traditional needs New power system needs: Transmission and supply/demand resources to meet economic and environmental goals Renewable Portfolio Standards Regional Greenhouse Gas Initiative (RGGI) Traditional power system needs: Transmission and supply resources for reliability Growth in peak and overall energy use Reliance on natural gas generation/need for dual-fuel MA Restructuring Roundtable © 2008 ISO New England Inc.

Progress on Reliability Transmission Investment – Also Improving Efficiency of the Market 1. NSTAR 345 kV Project a. Phase I b. Phase II 2. Northeast Reliability Interconnect 3. Northwest Vermont 4. SWCT Phase I 5. SWCT Phase II 6a. NEEWS 6b. Greater Rhode Island 6c. Springfield 115 kv Reinforcements Maine Power Connection Maine Power Reliability Program Southeast Massachusetts Monadnock Area 7 8 2 3 10 Project cost estimates and in-service dates (ISD) for major projects: Based on October 2007 Project Listing update NSTAR Reliability Project - Phases I&II (MA): $283 M ISD: 11/06 (Stoughton-Hyde Park); 4/07 (Stoughton-K Street); 10/08 (Stage 2) Northeast Reliability Interconnect (ME): $144 M ISD: 12/07 Northwest Vermont Reliability Project (VT): $210 M ISD: 1/07 (345-kV); 12/08 (rest of project) Southwest Connecticut Reliability Project - Phase I (CT): $343 M ISD: 11/06 Southwest Connecticut Reliability Project - Phase II (CT): $1,385 M ISD: 12/09 NEEWS: $273 M (RI section only) ISD: 2011-2013 (Full project) 1a 1b In service 4 9 Under construction Under study 6 5 MA Restructuring Roundtable © 2008 ISO New England Inc.

Significant New Supply and Demand Resources Awarded in First Capacity Market MA Restructuring Roundtable © 2008 ISO New England Inc.

Renewables in the Queue Fall Short of Requirements; Transmission Upgrades Needed MA Restructuring Roundtable © 2008 ISO New England Inc.

Potential Renewable Resources in Canada Being Assessed 4,300 MW 3,700 MW 3,840 MW 1,300 MW 230 MW Source: “Potential Non Co2 Emitting and Renewable Resource Listing”, from Steve Rourke. See DMS #4954, Sheet 3 PROVINCE INDIVIDUAL RESOURCE POTENTIAL (AREA) FACILITIES TYPE MW LABRADOR 2 HYDRO 2,800 LABRADOR VARIOUS WIND 1,500 LABRADOR SUBTOTAL 4,300 QUEBEC 2 HYDRO 890 QUEBEC 4 HYDRO 1,500 QUEBEC 16 WIND 1,450 QUEBEC SUBTOTAL 3,840 NB (Northeast) 13 WIND 1,000 NB (Southeast) 13 WIND 1,100 NB (West) 7 WIND 600 NB (South) 1 NUCLEAR 1,000 NEW BRUNSWICK SUBTOTAL 3,700 PEI 3 WIND 230 NS (North) 6 WIND 400 NS (Central) 13 WIND 650 NS (South) 6 WIND 250 NOVA SCOTIA SUBTOTAL 1,300 EASTERN CANADA TOTAL 13,370 Total: 13,370 MW MA Restructuring Roundtable © 2008 ISO New England Inc.

Resources in the North Majority of renewable resource potential exists in: Northern Maine Northern New Hampshire Quebec New Brunswick Newfoundland and Labrador Northeast International Committee on Energy (NICE) ISO-NE and New Brunswick System Operator (NBSO) developing inventory of renewable potential in New England and Eastern Canada MA Restructuring Roundtable © 2008 ISO New England Inc.

Improved Planning Process to Help Achieve these Goals FERC Order 890 requires improvements to regional system planning (RSP) process Identification of economic needs Requirement for economic studies (3 per year) Process for prioritizing economic studies Stakeholder working group to implement these improvements Define the scope of economic studies Develop criteria for prioritization Consider factors for determining market efficiency upgrades ISO/NECPUC/NEPOOL Steering Committee to guide working group MA Restructuring Roundtable © 2008 ISO New England Inc.

Improved Transmission Planning Process, Next Steps Working group to convene first meeting in March NECPUC considering cases for economic study within the region NICE Committee considering options for increased imports from Canada Goal is to create evaluation framework that can select the best transmission solutions for the region MA Restructuring Roundtable © 2008 ISO New England Inc.