1. Clean Air Act Section 111(d)
Clean Power Plan
Clean Air Act Section 111(d)
Environment Committee Briefing 9/16/14, Edith Makra MMC

2. Clean Power Plan Purpose
Boost the economy
Spark investment in clean power
Maintain an affordable, reliable energy system.
Lead to health & climate benefits worth an approx. $55 -$93 billion in
Protect public health and environment
Cut harmful particle pollution, sulfur dioxide and nitrogen oxides as a co-benefit.
Provide important health protections to the most vulnerable.
Every $1invested through the Clean Power Plan – will yield up to $7 in health benefits.
Fight climate change
By 2030, reduce nationwide carbon dioxide (CO2) emissions, from the power sector by approximately 30% from 2005 levels.
Environment Committee Briefing 9/16/14, Edith Makra MMC

3. US EPA Proposing Rules to Implement Clean Power Plan
Called for in President’s Climate Action Plan
EPA had and continues strong outreach
US EPA expecting millions of comments!
Accepting public comment on plan through 10/16/14
Question for Environment Committee-
Should we comment on the plan?
Final plan due 6/1/15
Illinois submits plan to USEPA 6/1/16
Extensions allowed for legislative and regional approaches

4. Draft Clean Power Plan Rules Only:
Sets individual state CO2 emission reduction goals
Expected to be 33% reduction in CO2 emission rate by 2030
Rate = lbs CO2/MWh from existing, affected fossil-fueled fired sources
2. Provides framework for the development of state plans
Framework provides flexibility for state plans

5. 1 3 4 2 6% 27% 4 Building Blocks Inside the Fence-Line
Improvements at Coal-Fired Power plants
4 Building Blocks
Re-dispatch to High Efficiency Natural Gas Combined Cycle 2 3
New Renewable Energy & Nuclear 4
Energy Efficiency (EE)
Demand-side EE
Inside the Fence-Line 6%
Outside the Fence-Line
27% 5
Environment Committee Briefing 9/16/14, Edith Makra MMC

6. 7% Building Block 3 Step 4 Build new RE and Nuclear
Goal
(lbs CO2/MWh)
% Reduced
Cumulative %
Baseline
1,895 1
1,784 6% 2
1,614 9%
15% 3
1,476 7%
22% 4
Total
BB #3
New Renewable Energy (RE) & Nuclear
Build new RE and Nuclear
- 115% increase in RE by 2030
- 4% of IL generation in 2012 to 9% in 2030 7%
Environment Committee Briefing 9/16/14, Edith Makra MMC

7. Step 5
Building Block 4
Building Block
Goal
(lbs CO2/MWh)
% Reduced
Cumulative %
Baseline
1,895 1
1,784 6% 2
1,614 9%
15% 3
1,476 7%
22% 4
1271
11%
33%
Total
BB #4
Energy Efficiency (EE)
Demand-side EE
Increase demand-side EE results in avoided generation from affected coal and other fossil-fuel EGUs
11.6% increase in EE (avoided generation) + 0.9% line loss improvement
11%
Environment Committee Briefing 9/16/14, Edith Makra MMC

8. 1 2 3 4 Goal Total 42% Building Block Goal (lbs CO2/MWh) % Reduced
Cumulative %
Unadjusted Baseline
2,189
Baseline
1,895
13% 1
1,784 6%
5.5% (18.5%) 2
1,614 9%
15%
5.5% (24%) 3
1,476 7%
22%
8% (32%) 4
1,271
11%
33%
10% (42%)
Total
42% 1 2 3 4
Environment Committee Briefing 9/16/14, Edith Makra MMC

9. Illinois – Background (cont.)
2012 Net Electricity Generation
Generation Source
Percent of Total
Nuclear
49%
Coal-Fired
41%
Natural Gas-Fired 6%
Renewable Energy 4%
Environment Committee Briefing 9/16/14, Edith Makra MMC

10. Illinois Power – Background
17 coal-fired power plants
17,000 MW
Variety:
4 to > 60 years old
74 MW to > 800 MW
Variety of coal types
most are well-controlled.
30 Natural-gas fired plants
3 of which are Natural Gas Combined Cycle (NGCC), ~ 2,230 MW
6 Nuclear Plants, ~ 12,000 MW
Environment Committee Briefing 9/16/14, Edith Makra MMC

11. 111(d) – State Plan Development
Power Plants/Affected Sources
Facilitator, Collaborative Groups
Governor’s Office
DCEO
-EEPS
-Demand-Side EE
-RE
Environmental Groups/NGO’s
State
Plan
IEPA
-Inside the fence-line requirements
-Plan Assembler & Submitter
RTOs & ISOs:
-PJM
-MISO
IPA
RPS
Legislative Liasion
-EEPS
-RPS
-Clean Energy
ICC
-Re-dispatch to NGCC
-RPS
-RE
-Enforcement
Clean Energy Providers: RE + EE
Utilities/Distributors: -ComEd/Exelon
-Ameren EE
Environment Committee Briefing 9/16/14, Edith Makra MMC