# MEMORANDUM

To: Julia Miller

From: Matthew Lichtash, Cory Jemison, Lauren Pederson ICF International

Date: July 29, 2015

Re: Comparing Renewable Generation from Previous Versio ns of Integrated Resource Plans

Leveraging ICF’s previous research into Integrated Resource Plans (IRPs), the following four examples show utilities that have outlined their planned tim eline for expansion of renewables for their generat ing portfolios.

1. Duke Energy Indiana

2011 IRP 2013 IRP Renewable Energy Generation 1,388 MW of renewables by 2027

1,631 MW of renewables by 2031

10% of retail sales by 2025 900 MW of renewables by 2027 2,344 MW by 2033*

Wind 1400 MW by 2031 800 MW by 2031 2000 MW by 2033 Solar 160 MW by 2031 330 MW by 2026 Biomass 71 MW by 2025 14 MW by 2027Planned NonRenewable Additions • 740 MW new NGCT by 2025, 810 MW new NGCT by 2030

• 650 MW new NGCC by 2028 • 800 MW new NGCT by 2025

• 680 MW new NGCC by 2030

• 318 MW NG conversion in 2016

280 MW from nuclear in 2031 Coal Retirements 1,114 MW by 2021 1,114 MW by 2021 1,432 MW by 2031 *2033 number driven by expected increased CO2 price

.2013 IRP: Resource additions and retirements2011 IRP: Resource additions and retirements

2013: http://www.in.gov/iurc/files/2013_Duke_Energy_India na_-_IRP_Report_Volume_I.pdf

http://www.in.gov/iurc/files/2013_Duke_Energy_India na_-_IRP_Volume_II.pdf

2011: http://www.in.gov/iurc/files/IRP_2011_Duke_Energy_I ndiana.pdf2. Indiana Michigan Power Company (2013 report)

2011 IRP 2013 IRP Renewable Energy Generation Wind 500 MW by 2027 300 MW by 2026 Solar 50 MW of solar in each year beginning 2020 (700 MW by 2033)

150 MW of solar from customers by 2033 Energy Efficiency 423 MW of DR/EE by 2031 477 MW of new and existing EE by 2033Planned NonRenewable Additions 562 MW by 2024 86 MW by 2033

Coal Retirements 985 MW by 2024 982 MW by 2015

2013 IRP: Resource additions and retirements2011 IRP: Resource additions and retirements

2013: http://www.in.gov/iurc/files/2013_Indiana_Michigan_ Power_Co_-_IRP_Report.pdf

2011: http://www.in.gov/iurc/files/IRP_2011_Indiana_Michi gan_Power_Company.pdf3. Tucson Electric Power (TEP) (2014 report)

2012 IRP 2014 IRP Natural Gas 270 MW by 2027 1,212 MW by 2027 Utility-Scale RE 583 MW by 2027 529 MW by 2027 Distributed Generation 312 MW by 2027 259 MW by 2027

Energy Efficiency 475 MW by 2027 259 MW by 2027 Demand Response 52 MW by 2027 45 MW by 2027

2014: https://www.tep.com/doc/planning/2014-TEP-IRP.pdf

2012: http://files.shareholder.com/downloads/UNIS/2986620 875x0x557199/806B57DB-06CF4E46-BB16-124E53DCAC74/2012_TEP_IRP_1.pdf4. Xcel Energy Upper Midwest (2014 report)

2010 IRP 2014 IRP Natural Gas 730 MW of NGCC by 2025

1,365 MW of NGCT by 2025 0 MW of NGCC by 2025 1,752 MW of NGCT by 2028 Solar 20 MW by 2020 276 MW of small and large solar by 2020

506 MW of small solar by 2030

1,887 MW of large solar by 2030 Wind 1,150 MW by 2020*

1,750 MW by 2025*

From 2015-2025: 1,300 MW 1,400 MW by 2025 1,800 MW by 2027

From 2015-2025: 1,400 MW DSM 1,682 MW by 2025 *450 MW of wind was projected between 2011-2014 – t he 2015-2025 range is shown below within the cell.

2014 IRP: Resource additions and retirements2010 IRP: Resource additions

2014: http://www.xcelenergy.com/staticfiles/xe/Regulatory /Regulatory%20PDFs/03-Preferred-Plan.pdf

2010: http://www.xcelenergy.com/staticfiles/xe/Regulatory /Upper_Midwest_Resource_Plan.pdf