NW Electric Cooperatives Power Supply

1. NW Electric CooperativesPower Supply MEDA 2009 Fall Conference September 15, 2009 Libby , MT John Prescott, PNGC Power President & CEO

2. Outline • Who-what is PNGC? • Public Power in the NW • Generating resource choices

3. Electric Cooperatives • Private not-for-profit corporations owned and governed by those who take service • Generally serve rural areas (REA) • Distribution Cooperatives • Lincoln Electric • Generation & Transmission Cooperatives • PNGC Power • Guided by 7 Cooperative principles

5. Public Power in the NW • Blessed with Federal Power System • Hydro, Nuclear • BPA – preference power • Existing system is limited • Load growth, constraints • New BPA contracts (2012) • Tiered rates, Marginal costs • Energy efficiency • New resources will be needed!

6. PNGC solution • Use the Federal System as much as possible • Develop / own our own resources to meet load growth (or loss of the Federal System) • Pool with like-minded cooperatives • Risk, critical mass • Promote / facilitate the wise use of energy

7. Generation resource decisions • Technology • Size • Location • Cost • Environmental impacts • Transmission • Timing • Ability to carry load

8. Power Systems 101 100 MW 100 MW

9. Power Systems 101 • On-line generation must exactly match demand for electricity every 4 seconds • Folks expect action when they flip the switch • Therefore…base load and dispatchability are critical

10. Power Systems 101 200 MW 100 MW

11. MW Load Duration Curve Peaking Intermediate Base Hours 0 8760 100% Power Systems 101

26. Efficient Building Systems Utility Communications Renewables Internet PV Consumer Portal & Building EMS Advanced Metering Control Interface Distribution Operations Dynamic Systems Control Plug-In Hybrids Smart End-Use Devices Distributed Generation & Storage Data Management The Dynamic Energy Management Infrastructure Source: Electric Power Research Institute

27. Source: NASA