MEMORANDUM 

To: Julia Miller 

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

Date: July 29, 2015 

Re: Comparing Renewable Generation from Previous Versions 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 timeline for expansion of renewables for their generating 

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 2027 

Planned 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 retirements 
2011 IRP: Resource additions and retirements 

 

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

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

2011: http://www.in.gov/iurc/files/IRP_2011_Duke_Energy_Indiana.pdf 
2. 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 

2033 

Planned 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 retirements 
2011 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_Michigan_Power_Company.pdf 

 
3. 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/2986620875x0x557199/806B57DB-06CF4E46-BB16-124E53DCAC74/2012_TEP_IRP_1.pdf

 
4. 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 – the 2015-2025 range is shown below within the 

cell. 

2014 IRP: Resource additions and retirements 
 
2010 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