Rick Haener September 4th, 2015

Transcription

1 Integrated Resource Plan Rick Haener September 4th, 2015

2 Integrated Resource Plan (IRP) Public utilities first began preparing integrated resource plans (IRPs) in the early 1990s IRPs are Public Utility Commission (PUC) mandated documents for how a utility expects to provide service to customers for the next 20 years IRPs are typically updated and filed with the PUCs every two years IRPs consider supply side resources, demand side measures and transmission options Balance cost, risk, and environmental concerns Public involvement is a key component of the planning process

3 Idaho Power Generation

4 2015 IRP Key Assumptions/Issues Load Forecast 1.2% growth in energy 1.5% growth in peak hour capacity Transmission Projects Boardman to Hemingway (B2H) Gateway West EPA s Proposed 111(d) Rule First deficit year ranges from 2020 to 2025 depending on 111(d) compliance and coal retirement assumptions PURPA Contracts 461 MW Solar contracts (un built) NorthValmy Generating Station North Valmy Generating Station Owner Future Expectations Alignment

5 Peak Load and Resource Capacity Status Quo Years in megawatts Load 95 Percentile Annual Peak Forecast Resource Capacity

6 PURPA Projects under Contract tand associated itdnameplate Rti Rating (MW) Projects MW Projects MW Projects MW Projects MW Hydro Cogen Biomass Solar Wind Total ,302

7 PURPA Increase from the 2013 IRP 471 MW or 57% 2013 IRP 831 MW 2015 IRP 1,302 MW

8 Preferred Portfolio Portfolio P6(b) 301 amw of energy efficiency over 20 years and 473 MW of reduction on peak by 2034 Valmy Retirement in 2025 (262 MW) Actual Valmy retirement date will depend on B2H completion date, the ability to agree on a depreciation date and eventual closure date with NV Energy, and PUC approval of an accelerated depreciation schedule Boardman to Hemingway in 2025 (+500 MW in Summer, +200 MW in Winter) Date Resource Installed Capacity 2025 Boardman to Hemingway 500 MW transfer capacity Apr-Sep 200 MW transfer capacity Oct-Mar Peak-Hour Capacity 500 MW 2025 Retire North Valmy (both units) (262 MW) (262 MW) 2030 Demand response 60 MW 60 MW 2030 Ice-based thermal energy storage 20 MW 20 MW 2031 Combined-cycle combustion turbine 300 MW 300 MW Total retired capacity (262 MW) Total added capacity 880 MW Net peak-hour capacity 618 MW

9 Action Plan B2H and Gateway West: Ongoing permitting, planning studies, and regulatory filings Energy efficiency: Continue the pursuit of cost effective energy efficiency. The forecast reduction for programs is 84 average megawatts (amw)for energy demand dand 126 MW for peak demand. d Coordinate with government agencies on implementation planning for CAA Section 111(d) Shoshone Falls File to amend FERC license regarding g50 MW expansion 2015 Jim Bridger Unit 3 Complete installation of SCR emission control technology

10 Action Plan continued Shoshone Falls Study options for a smaller upgrade ranging in size up to approximately ate 4 MW 2016 Jim Bridger Unit 4 Complete installation of SCR emission control technology 2016 North Valmy units 1 and 2 Continue to work with NV Energy to synchronize depreciation dates and determine if a date can be established to cease coal fired operations 2017 Shoshone Falls Commence construction of smaller upgrade 2017 Jim Bridger units 1 and 2 Evaluate the installation of SCR technology for units 1 and 2 at Jim Bridger in the 2017 IRP 2019 Shoshone Falls On line date for smaller upgrade during first quarter

11 Other Projects Solar PV on Distribution Feeder Lines Install solar PV panels near the end of long distribution feeders to boost/regulate voltage. The pilot project would confirm whether this concept is the lowest cost option in certain cases. Three locations have been identified for the pilot project. Thermal Ice Storage Pilot Project (Ice Bears) Identify and work with a commercial customer to install thermal ice storage. The initial phase would involve identifying a customer, designing the system, and putting together a detailed cost estimate. The second phase would be to purchase and install the equipment followed by data collection for a period of time to determine the effectiveness of the concept. Shoshone Falls Upgrade Project The previously planned 59 MW expansion of the Shoshone Falls Hydroelectric Project has been scaled back to an upgrade of 1.7 to 4.0 MW. Construction is tentatively planned to commence in 2017.

12 Schedule/Questions hdl/

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14 2015 IRP Assumed Solar Capacity Factors Month Utility Scale, Single Axis Tracking Residential, Fixed Tilt January 12% 7% February 19% 11% March 26% 16% April 32% 20% May 37% 23% June 41% 25% July 42% 26% August 39% 24% September 33% 20% October 25% 16% November 14% 9% December 11% 7% Annual Capacity Factor 27.5% 17.0%