Our performance - 2019 Corporate Sustainability Report · 7/3/2018 · natural gas and natural gas...

Our performanceC O N T E N T S

Fossil generation emissions . . . . . . . . . . . . . . .2

Greenhouse gases . . . . . . . . . . . . . . . . . . . . . . . .4

Renewable energy . . . . . . . . . . . . . . . . . . . . . . .6

Water management . . . . . . . . . . . . . . . . . . . . . . .7

Coal combustion residuals . . . . . . . . . . . . . . . .8

Environmental compliance . . . . . . . . . . . . . . . .9

Ecosystem and habitat support . . . . . . . . . . . .9

Energy efficiency . . . . . . . . . . . . . . . . . . . . . . . .10

Electric system reliability . . . . . . . . . . . . . . . .11

Natural gas system performance . . . . . . . . . .12

Employee safety performance . . . . . . . . . . . .13

Community giving . . . . . . . . . . . . . . . . . . . . . . .14

Workforce and supplier diversity . . . . . . . . .15

Research and development . . . . . . . . . . . . . . .16

Alliant Energy Corporate Sustainability R E P O R T 1

Fossil generation emissionsThe fossil fuel generation emissions figures and data represent the releases to air from the production of electrical energy in 2005 and 2017. Detailed information is provided for each of Alliant Energy’s regulated utilities, IPL and WPL. This includes the total mass emissions and the emissions rate per megawatt-hour (MWh) for gross and net generation.

Values represent the IPL and WPL systemwide rates for each utility’s owned fossil-fueled electric generation. Information is adjusted for IPL and WPL share of joint-owned generation units. Emission data does not take into account energy from other sources in the company’s overall generation portfolio, including owned or purchased power from non-emitting generation (primarily wind and nuclear) or market purchases from the Midcontinent Independent System Operator, Inc. (MISO) necessary to meet customer energy demands.

0

10

20

30

40WPLIPL

20172005

MA

SS

IN

TH

OU

SA

ND

S O

F T

ON

S

Nitrogen oxides (NOX)

0

200

400

600

800

1,000

1,200WPLIPL

20172005

Mercury (Hg)M

AS

S

IN

P

OU

ND

S

0102030405060708090

WPLIPL

20172005

MA

SS

IN

TH

OU

SA

ND

S O

F T

ON

S

Sulfur dioxide (SO2)

0

10

20

30WPLIPL

20172005

Carbon dioxide (CO2)

MA

SS

IN

MIL

LIO

NS

OF

TO

NS


Alliant Energy

Mass (tons)* Mass (tons)* % Reduction

Gross Rate (lbs/MWh)**


Net Rate (lbs/MWh)**


2005 2017 2005 2017 2005 2017

NOx 33,930 9,519 72% 3.16 1.00 3.37 1.07

SO2 81,997 12,864 84% 7.64 1.35 8.14 1.45

Mercury 1,139 75 93% 0.053 0.004 0.057 0.004

CO2 23,815,906 17,888,430 25% 2,220 1,872 2,364 2,013

IPLMass (tons)* Mass (tons)* %

Reduction





2005 2017 2005 2017 2005 2017

NOx 23,141 5,682 75% 3.70 1.14 3.96 1.25

SO2 42,775 8,570 80% 6.83 1.72 7.31 1.88

Mercury 674 39 94% 0.054 0.004 0.058 0.004

CO2 14,132,240 9,089,982 36% 2,257 1,826 2,416 1,996

WPLMass (tons)* Mass (tons)* %

Reduction





2005 2017 2005 2017 2005 2017

NOx 10,789 3,838 64% 2.42 0.84 2.55 0.89

SO2 39,222 4,294 89% 8.78 0.94 9.28 0.99

Mercury 465 36 92% 0.052 0.004 0.055 0.004

CO2 9,683,666 8,798,449 9% 2,168 1,921 2,292 2,030

* Mercury mass in pounds (lbs)** Mercury rate in lbs/gigawatt-hour (GWh)

Source: Continuous emissions monitoring systems (CEMS) and other air compliance data accepted by the U.S. Environmental Protection Agency, Iowa Department of Natural Resources and Wisconsin Department of Natural Resources. The 2005 mercury emissions are estimated based on CEMS data from 2009, when these CEMS were first installed.

Coal-fired air quality control systemsAlliant Energy’s installation of air quality control systems (AQCS) at coal-fired electric generating units have resulted in significant emissions reductions of particulate matter (PM), mercury (Hg), SO2 and NOX. Current status of existing and planned AQCS are provided in the table below.

The types of AQCS technologies installed include:

Electrostatic precipitator (ESP)

Baghouse/fabric filter (BG/FF)

Calcium bromide (CaBr)

Activated carbon injection (ACI)

Dry flue gas desulfurization (DFGD)

Low NOX burners (LNB)

Over-fired air (OFA)

Selective catalytic reduction (SCR)

Selective non-catalytic reduction (SNCR)

Technology* ESP BG/FF CaBr ACI DFGDLNB or

OFASCR SNCR

Emissions controlled Hg/PM Hg/PM Hg Hg SO2 NOX NOX NOX

Columbia Unit 1

Columbia Unit 2

Edgewater Unit 4**

Edgewater Unit 5

Burlington Unit 1

Lansing Unit 4

Ottumwa Unit 1 2019

Prairie Creek Unit 3

* As of August 2018 ** Expected retirement by 9-30-18.Source: Alliant Energy records. Excludes coal units that primarily provide industrial process steam.


Greenhouse gases

The CO2e is a measure used to compare the emissions from various greenhouse gases based on their Global Warming Potential (GWP). The CO2e for a gas is derived by multiplying the mass of the gas by the associated GWP and is determined as follows:

Total CO2e = Summation of million metric tons of a gas x GWP of the gas

Total CO2e = Carbon dioxide (CO2) x 1 + methane (CH4) x 25 + nitrous oxide (N2O) x 298

Total CO2e = CO2 (million metric tons) x 1 + CH4 (million metric tons) x 25 + N2O (million metric tons) x 298

The EPA Mandatory Greenhouse Gas Reporting Rule protocols apply to the monitoring and reporting of GHG emissions based on operational control that exceed threshold levels of CO2e. More specifically, this includes fossil-fueled generation facilities (Subpart D) and auxiliary combustion equipment (Subpart C). In addition, indirect GHG emissions from the combustion of the natural gas supplied to customers (Subpart NN) and fugitive losses from natural gas distribution operations (Subpart W). Total greenhouse gas emissions reported to EPA for both direct and indirect sources in 2017 were 25.2 million metric tons of CO2e based on operational control.

Source: Annual EPA Mandatory GHG Report submission protocols issued at 40 CFR Part 98.

Subpart NNsuppliers ofnatural gasand naturalgas liquids

Subpart Delectricitygeneration

Subpart Wnatural gas systems0.2%

Subpart Cgeneral stationaryfuel combustionsources 1.5%

82.1%

EPA reported greenhouse gas emissions by requirement as a percentage of total CO2e

16.2%

Methane(CH4) 0.2%

Carbondioxide (CO2)

Nitrous oxide(N2O) 0.4%

99.4%

EPA reported greenhouse gas emissions by type as a percentage of total CO2e

0

5

10

15

20

WPL IPL

20172016201520142013

Direct CO2e emissions from fossil-fueled generation

9.22

8.62

7.98

9.27

8.38

8.22

7.22

7.19

8.09

8.24

MIL

LIO

NS

OF

MET

RIC

TO

NS

0

10

20

30

40

50

WPL IPL

20172016201520142013

Direct CO2e emissions from gas distribution systems

18.29

21.26

17.64

21.16

19.26

22.22

19.57

21.09

19.81

21.16

THO

US

AN

DS

OF

MET

RIC

TO

NS

0

5

10

15

20

WPL IPL

20172016201520142013

Total direct CO2e emissions (Scope 1)

9.24

8.65

8.00

9.29

8.40

8.24

7.24

7.21

8.11

8.26

MIL

LIO

NS

OF

MET

RIC

TO

NS

The primary source of greenhouse gases (GHG) from Alliant Energy and its utility subsidiaries (IPL and WPL) are the direct emissions of carbon dioxide (CO2) from fossil-fueled generation. In addition, fugitive emissions occur from natural gas distribution operations. These GHG emissions comprise the majority of the company’s Scope 1 footprint which totaled 16.4 million metric tons of CO2-equivalent (CO2e) for 2017 based on equity-share.

Source: Annual EPA Mandatory GHG Report protocols issued at 40 CFR Part 98. Direct CO2e emissions are adjusted for equity share of joint-owned electric generating units. Emissions shown below include all fossil-fueled generation and auxiliary combustion sources including those facilities below the EPA reporting thresholds.


The electric system emission rate for WPL and IPL is determined based on the 2017 EPA-reported GHG data. The system emission rate represents the CO2e after adjustments for renewable energy credit (REC) transactions.

The system CO2e emission rate represents the CO2e emission rate attributable to the retail portion of electric energy sales for retail customers (not including Second Nature), as reported in Alliant Energy Corporation’s annual Form 10-K to the U.S. Securities and Exchange Commission (SEC). Fossil fuel combustion CO2e emissions are calculated in accordance with the U.S. Environmental Protection Agency (EPA) mandatory Greenhouse Gas Reporting Program (GHGRP) regulations under 40 CFR Part 98. The CO2e system emission rate has been adjusted to reflect Alliant Energy’s annual share of emissions and generation from jointly owned electric generation units. In addition, the CO2e system emission rate has been adjusted for null power and includes emissions and generation attributable to Alliant Energy’s market energy purchases. Null power includes sales of renewable energy credits (RECs), RECs retired for Alliant Energy’s Green Pricing Program – Second Nature, and renewable energy agreements with outside parties.

Null power and market energy purchase CO2 emissions have been calculated using the Green-e® residual emission rate factor for the North American Electric Reliability Corporation (NERC) Midwest Reliability Organization (MRO) Region. The residual emission rate factor is available at: www.green-e.org. The EPA’s Emissions and Generation Resource Integrated Database (eGRID) emission factors have been used for null power and market energy purchase methane (CH4) and nitrous oxide (N2O) emissions. The eGRID emission factors are available at: www.epa.gov/energy/egrid. Total CO2e was calculated with global warming potentials (GWP) as follows: CO2 = 1, CH4 = 25, N2O = 298.

Alliant Energy Corporation makes no assurances regarding use of this information by external parties in relation to any marketing or other sustainability claims, or the validity of this information as pertains to the U.S. Federal Trade Commission (FTC) Green Guides under 16 CFR Part 260.

Alliant Energy Corporation reserves the right to use all or some of the renewable energy attributes associated with generation from renewable energy sources in future years to comply with renewable energy standards or other regulatory requirements or to sell the renewable energy attributes to third parties in the form of RECs or other environmental commodities.

2017 Energy Resources and Emission Rate IPL (Iowa) WPL (Wisconsin) Alliant Energy

Owned Generation (Net MWh) Coal 5,765,467 34.37% 6,614,308 47.30% 12,379,775 40.24%

Natural Gas 3,342,295 19.92% 1,972,803 14.11% 5,315,098 17.28%

Oil 20,713 0.12% – – 20,713 0.07%

Hydroelectric – – 217,074 1.55% 217,074 0.71%

Solar 941 0.01% – – 941 0.00%

Wind 851,096 5.07% 740,049 5.29% 1,591,145 5.17%

Purchased Power (Net MWh) Natural Gas – – 10,138 0.07% 10,138 0.03%

Nuclear 3,726,986 22.21% – – 3,726,986 12.12%

Biomass – 0.00% – – – 0.00%

Hydroelectric 17,689 0.11% 114,478 0.82% 132,166 0.43%

Solar – 0.00% 35 0.00% 35 0.00%

Wind 613,403 3.66% 626,163 4.48% 1,239,566 4.03%

Other (market) 2,416,052 14.40% 3,653,661 26.13% 6,069,713 19.73%

Second Nature 22,263 0.13% 36,005 0.26% 58,268 0.19%

Total Sources of Energy (Net MWh) 16,776,905 100% 13,984,714 100% 30,761,619 100%System Emission Rate Adjusted for Null Power CO2e (grams/kWh) 579 727 642

CO2e (lbs/MWh) 1,277 1,602 1,416


Renewable energy Alliant Energy is subject to Renewable Portfolio Standards (RPS) in Wisconsin and Iowa. These standards establish the amount of energy electric utilities must supply from renewable resources to their retail electric customers. Our company continues to exceed its RPS requirements through company-owned renewables and purchase power agreements (PPAs), primarily from wind generation.

Renewable energy credits (RECs) represent proof that 1 MWh of electricity was generated from an eligible renewable energy resource. Alliant Energy’s RECs are tracked in the Midwest Renewable Energy Tracking System (M-RETS). RECs can be sold and traded, giving the purchaser of the RECs claim to the renewable energy and environmental attributes. The RECs generated by Alliant Energy may be sold or exchanged on the renewable energy market, including to buyers not located in the states served with energy from IPL or WPL.

The table below provides a summary of Alliant Energy’s REC transactions over the past five years up until the time of publication of this report. These transactions could include RECs originating from company-produced and/or purchased renewable energy sources.

0

500

1000

1500

2000

2500

3000

3500

20172016201520142013

RECS

IN T

HO

USA

ND

S O

F M

WH

RECs from produced and purchased renewable resources

3,4443,128 3,232 3,225 3,185

0

200

400

600

800

1,000

1,200

WPL WisconsinIPL IowaIPL Minnesota

WPL WisconsinIPL IowaIPL Minnesota

20162015201420132012

RECs surrendered for RPS compliance

RECs retired for RPS compliance

RECS

IN T

HO

USA

ND

S O

F M

WH

RECS

IN T

HO

USA

ND

S O

F M

WH

0

200

400

600

800

1000

1200

20172016201520142013

Source: Alliant Energy records and Federal Energy Regulatory Commission (FERC) Form 1. In 2015, IPL closed the sale of its electric distribution assets in Minnesota and no longer provides retail sales to customers in this service territory. Compliance data shown includes REC retirements for IPL’s retail sales in Minnesota to meet the existing RPS requirements through the closing date in 2015. The number of RECs retired in a given RPS compliance year does not necessarily mean those RECs were all generated that year due to the allowed use of banked RECs in Minnesota and Wisconsin.

Alliant Energy’s REC Transactions

Year REC was generated 2013 2014 2015 2016 2017

RECs retired, or those to be retired, for our customers’ environmental benefit 1

825,824 1,132,403 989,304 2,416,132 2,861,810

RECs sold, transferred, held or retired for other purposes 2 2,302,671 2,099,816 2,235,400 768,984 582,293

1 Alliant Energy maintains the renewable energy and environmental attributes associated with these RECs on behalf of its retail electric customers. This includes RECs retired for RPS compliance and extra RECs retired for our customers’ environmental benefit. IPL retires all of these extra RECs, whereas WPL may only retire a portion and plans to retire them at a future time in accordance with its ability to bank RECs up to four years for Wisconsin RPS compliance purposes.

2 Alliant Energy no longer holds the renewable energy or environmental attributes associated with these RECs. This includes RECs sold on the REC market, transferred for wholesale agreements or PPAs, RECs from non-regulated assets, or retired for Alliant Energy’s Second Nature program, the WPL Consent Decree or Leadership in Energy and Environmental Design (LEED) certification.

Based on these RECs transactions, Alliant Energy has supplied its customers with the following amounts of renewable energy annually.

% of Energy Supplied from Renewable Energy Based on Retail Sales*

Year 2013 2014 2015 2016 2017

IPL - Iowa 1.30% 1.31% 1.02% 8.11% 9.92%

WPL - Wisconsin 6.00% 8.74% 7.89% 11.36% 13.28%

Alliant Energy 3.19% 4.34% 3.88% 9.50% 11.36%

* All RECs supporting these numbers have been or will be retired. RECs sold, transferred or retired for other purposes, as shown in the prior table, have not been included in the calculation of these numbers.


Water management Primary watersheds for Alliant Energy operations include the Great Lakes and Upper Mississippi River drainage basins of the United States. A watershed is the area that drains to a common waterway, such as a stream, lake, river, estuary, wetland, aquifer or even the ocean. The primary source of water supply to support generating facility operations for each of Alliant Energy’s regulated utilities, IPL and WPL, is provided in the table to the right. In addition, the company’s generating stations may supplement water use with well water and city water.

We predominantly use water to make steam and cool equipment. Most of this “non-contact” cooling water is pumped through the generating station in closed-loop piping systems. This allows the water to cool process equipment without ever coming into direct contact with it. Therefore, our actual water consumption is very low, with over 95% returned for subsequent reuse. All water discharges meet federal and state regulations for freshwater quality.

Fresh water withdrawals include city water, groundwater and river or lake surface water intake. Water discharge includes once-through cooling, cooling tower blow-down and ash pond effluents. Water consumption is determined as the difference between withdrawal and discharge, taking into consideration estimated amounts of utility process water consumed due to evaporation and process wastewater.

* Fresh water withdrawal for fossil-fueled electric generation is based on operational control unadjusted for equity-share of joint-owned generation units.

Notes:

* The following electric generation facilities have been retired since 2017: Dubuque, Fox Lake, ML Kapp and Sutherland.

** Non-contact cooling water is returned to the river or lake that is the primary source of water, except as noted below.

Riverside Energy Center uses groundwater as the main supply and discharges to the Rock River.

The Emery Generating Station uses groundwater and treated sanitary water, also called “gray water,” that is returned to the local Publicly Owned Treatment Works (POTW).

The Sutherland Generating Station uses groundwater as the main supply and discharges to the Iowa River.

Marshalltown Generating Station went into service in April 2017 and uses city water supply that is discharged to the city sewer.

Utility Generating

facility*Primary water

source**

WPL Columbia Wisconsin River

WPL Edgewater Lake Michigan

WPL Riverside Groundwater

IPL Burlington Mississippi River

IPL Dubuque Mississippi River

IPL Emery Groundwater and Clear Lake Sanitary District

IPL Fox Lake Fox Lake

IPL Lansing Mississippi River

IPL ML Kapp Mississippi River

IPL Marshalltown Marshalltown Water Works

IPL Ottumwa Des Moines River

IPL Prairie Creek Cedar River

IPL Sutherland Groundwater

2017 Fresh water consumption (Billion gallons)*

Withdrawal Discharge Consumption Fresh Water Return Rate

IPL 145.2 142.2 2.9 98.0%

WPL 104.2 97.5 6.7 93.5%

Alliant Energy 249.4 239.7 9.7 96.1%

* Fresh water withdrawal for fossil-fueled electric generation is based on operational control unadjusted for equity share of joint-owned generation units.

2017 Fresh water withdrawal and consumption rates* (Gallons/MWh)

IPL WPL Alliant Energy

Withdrawal 16,828 9,189 12,800

Consumption 224 420 327

* Fresh water withdrawal and consumption rates for fossil-fueled electric generation is based on operational control adjusted for equity share of joint-owned generation units.

Source: Alliant Energy records and EPRI 2015 Technical Report, Evaluation of Freshwater Withdrawal and Consumption in Electricity Generation Based on Future Projections to 2030.

0

100

200

300

400

500 WPL

IPL

20172005

Fresh water withdrawal for fossil-fueled electric generation*

BIL

LIO

N G

AL

LO

NS 416.6

249.4


CCRproductmanagement

Cement products (readymix, paving, raw feed)

49%

Other (agricultural, landfill cover, storage pads, soil stabilization, subbase)

8%Asphalt products/

grit blasting

Landfill

38%

5%

0,000

200,000

400,000

600,000

800,000

Total GeneratedCCR Product Usage

20172016201520142013

CCR product use

53% 62%82% 74%

63%T

ON

S

Coal combustion residuals managementCoal combustion residuals (CCR) are what remain after the direct combustion of coal at generating stations and include residuals from air quality control systems. Alliant Energy’s goal is to manage CCR safely and responsibly to protect both the environment and the public while assuring compliance with state and federal regulations.

We are complying with the EPA’s regulations for CCR management and disposal. We expect to eliminate wet ash handling processes and close all of our coal ash ponds by the end of 2023. Our CCR website shares required compliance information and monitoring data. It can be directly accessed at ccr.alliantenergy.com.

Our company works with state regulatory agencies to identify approved beneficial uses for CCR. Material that cannot be beneficially reused is placed in landfills that are permitted and include engineering design and controls that meet or exceed applicable requirements.

There are different types of CCR:

Fly ash is a very fine powder-like particle that is collected by emission controls.

Bottom ash is a coarse, granular sand-like material collected from the bottom of the boilers.

Boiler slag is black, shiny and angular. It is coarser than bottom ash and also collected from the bottom of boilers.

Scrubber solids consist of lime that is reacted in air quality control systems to reduce SO2 emissions. These solids are light in color, contain very small amounts of fly ash and are typically collected in a baghouse.

In 2017, we were able to beneficially use more than 400,000 tons of CCR in products, or about 62% of the overall CCR generated.

Source: Alliant Energy records. Data provided is based on operational control and does not adjust for equity share of joint-owned electric generating units.


0

1

2

3

4

5

6

20172016201520142013

NU

MB

ER

OF

NO

CS

Notices of non-compliance (NOC)

34

6

45

Environmental complianceAlliant Energy operates in compliance with environmental requirements. However, there are occasions when the company has missed reporting deadlines, exceeded permit levels or otherwise violated regulations. These instances of non-compliance can result in fines or penalties. An environmental notice of non-compliance (NOC) is a communication from a regulatory agency that it believes the company has failed to comply with an environmental regulation.

In 2017, Alliant Energy was issued four NOCs related to late spill reporting, missed annual tank cathodic protection testing, improper tank closure documentation and wastewater monitoring procedures including an exceeded Total Suspended Solids permit limit. None of these were subject to fines or penalties. To further address our compliance status, we are implementing site-specific training at our operations to increase employee awareness of environmental requirements and provide practical guidance aimed at reducing the potential for human error.

Ecosystem and habitat supportAlliant Energy’s environmental stewardship includes a longstanding tradition of ecosystem and habitat support. We work diligently to minimize impacts, protect and enhance natural areas to support various species, including those that are or may become threatened or endangered.

Our company has been a full partner in the Karner Blue Butterfly Habitat Conservation Plan since 1999 in Wisconsin.

We have collaborated with the Wisconsin Department of Natural Resources to increase lake sturgeon populations in the Wisconsin River since 1997.

We have committed 75 acres of unused public land to a unique program known as the 1,000 Acre Pollinator Initiative in Cedar Rapids, Iowa.

Our company supports research and other efforts for preservation of the Monarch butterfly, including the Iowa Monarch Conservation Consortium, Wisconsin Monarch Collaborative and the Energy Resources Center’s Right-of-Way as Habitat Working Group.

We are a founding member of the Power-in-Pollinators Initiative, which is a collaborative conservation effort through the Electric Power Research Institute (EPRI).

For our growing wind turbine fleet, we have also supported EPRI-sponsored research aimed at protecting bat species and employing voluntary seasonal best practices for wind generation operations.

Our voluntary Avian Protection Plan formalizes and enhances our past practices of avian protection and incorporates industry best management practices for new construction or rebuilds of our distribution and wind generation facilities.

Ecosystem and habitat support

Native prairie and pollinator habitat 2,501 acres

Karner Blue Butterfly 275,635 acres


Source: Alliant Energy records and regulatory filings. Data shown include Minnesota energy efficiency program results through 2015, when IPL sold these electric distribution assets and ended retail sales to these customers. Savings in 2008-2009 include increases due to post-flood recovery construction and renovation in Iowa, as well as incentives funded by the American Recovery and Reinvestment Act.

Energy efficiency In 2017, Alliant Energy’s energy efficiency programs resulted in savings of over 257,000 MWh of electricity and over 3.3 million therms of natural gas. This includes estimated savings in Wisconsin through the Focus on Energy (FoE) program and actual savings from the program in Iowa.

Since 2001, the energy savings for Wisconsin residential and some business programs have been part of the consolidated FoE program. This program is managed and tracked separately by the state of Wisconsin. WPL contributes 1.2% of its annual retail utility revenues to help fund FoE.

In Iowa, the program is operated directly by utility companies under the oversight of regulatory agencies. In 2013, IPL’s Energy Efficiency Plan (EEP) was approved and includes spending of approximately $400 million from 2014 to 2018.

0

50

100

150

200

250

300

350

20172016201520142013201220112010200920082007

ME

GA

WA

TT

HO

UR

S I

N T

HO

US

AN

DS

Annual incremental electricity saved

0

2

4

6

8

10

12

20172016201520142013201220112010200920082007

TH

ER

MS

IN

MIL

LIO

NS

Annual incremental natural gas saved


Electric system reliabilityAlliant Energy is continually working to improve our system reliability; however, some power outages still occur. The majority are the result of weather-related events, trees and wildlife. As preventive measures, we conduct tree trimming near our distribution lines and install animal guards on pole-top transformers. Other events such as digging, construction or auto accidents can damage lines, poles or other equipment and cause service interruptions. An electrical overload may also cause the equipment to fail. Regardless of the reason for an outage, Alliant Energy works to restore power as quickly, efficiently and safely as possible.

Equipment

18%Wildlife

6%Public

5%Weather

16%

Other

12% Trees

43%

Power outages by

cause

System Average Interruption Duration Index (SAIDI) is the average length of an interruption experienced by the average customer. It is the annual sum of all customer interruption durations over the year divided by the total number of customers served during the year (even if they don’t experience an outage).

0

20

40

60

80

100

120

20172016201520142013

System average interruption duration index excluding major events (minutes)

MIN

UT

ES

87 85 8493

103

System Average Interruption Frequency Index (SAIFI) is defined as the number of sustained interruptions the average customer experiences. It is the total annual number of customer interruptions divided by the total number of customers served during the year.

Customer Average Interruption Duration Index (CAIDI) is the average length of an interruption experienced by an interrupted customer. In this index, a customer can be counted as many times as they experience an outage.

Source: Alliant Energy records. Metrics are reported excluding major events according to the guidance set forth by applicable regulatory agencies. In 2015, IPL closed the sale of its electric distribution assets in Minnesota and no longer provides retail sales to customers in this service territory. Data shown reflect IPL system through the closing date in 2015.

0.84

0.86

0.88

0.90

0.92

0.94

0.96

20172016201520142013

System average interruption frequency index excluding major events (number of interruptions)

INT

ER

RU

PT

ION

S

0.900.91

0.92

0.88 0.88

Lorem ipsum

0

20

40

60

80

100

120

20172016201520142013

Customer average interruption duration index excluding major events (minutes)

MIN

UT

ES

103113

95 96 96


90%

92%

94%

96%

98%

100%

20172016201520142013

% U

ND

ER

60

MU

NU

TE

S

Gas emergency responses

99.799.5 99.6 99.6 99.6Cathodically

protectedcoated steel

37%

Plastic

63%Natural gas

distribution main*(miles)

Cathodicallyprotected

coated steel

26%

Plastic

74%Natural gasdistribution(number ofservices)

Natural gas system performance Alliant Energy natural gas transmission pipelines deliver gas directly to some large industrial customers and to Alliant Energy gate stations, where pressure is lowered for final distribution to utility customers. The distribution systems consist of mains, which are usually located along or under city streets, and smaller service lines that branch off the mains and distribute natural gas service to homes and businesses. None of these pipeline systems are constructed of potentially high-risk materials, such as cast and wrought iron or non-protected bare steel.

System miles IPL WPLGas transmission pipeline 819 40

Distribution gas mains 4,320 4,504

Alliant Energy is dedicated to keeping its employees, customers and communities safe through training, education and awareness. All Alliant Energy journeymen crews and service responders are trained on emergency response and are available 24 hours a day, seven days a week. In addition, our company’s Transmission and Distribution Integrity Management Programs provide a process for inspecting and assessing the condition of Alliant Energy-owned natural gas pipelines and establishing a maintenance program based on regulatory requirements and best industry practices.

Source: Alliant Energy records.* Cathodically protected bare steel is less than 0.01%


Employee safety performanceLive safety . Everyone . Always is a Core Value at Alliant Energy: Our first priority is that nobody gets hurt. Employee safety performance is tracked according to the OSHA requirements. In addition, our company has a program to track and report near misses and unsafe conditions. This prevents similar incidents from occurring elsewhere and helps to identify and correct potential hazards to reduce risk to our employees.

Recordable incident rate

The number of work-related injuries or illnesses requiring more than first-aid treatment, per 100 employees.

Lost-time incident rate

The number of lost workdays per 100 employees from a recordable incident resulting in an employee’s inability to work the next full work day.

Severity rate

The number of days away from work per 100 employees as a result of work-related injuries or illnesses.

0.00

0.25

0.50

0.75

20172016201520142013

INC

IDE

NT

S P

ER

100

EM

PLO

YE

ES

Lost Time Incident Rate

0.570.52

0.330.43

0.48

0

1

2

3

4

20172016201520142013

INC

IDE

NT

S P

ER

100

EM

PLO

YE

ES

Recordable Incident Rate

2.872.35 2.39

2.712.36

0

5

10

15

20

20172016201520142013

DA

YS

AW

AY

PE

R 1

00 E

MP

LOY

EE

S

Severity Rate

16.014.9

6.9

12.0

8.6

Source: Alliant Energy records.


Community giving and volunteer effortsAlliant Energy and its employees support the communities in which we live and work. These efforts take place through a combination of Foundation, corporate and employee giving and volunteerism.

The Alliant Energy Foundation focuses on three main areas: Helping Families, Education and the Environment. In addition, the Foundation will match qualifying employee philanthropic gifts of $50 or more, up to $2,500 per year, to qualifying 501(c)3 charitable organizations. In 2017, through the giving spirit of our employees and retirees, this program matched donations of nearly $500,000.

Our corporate giving includes Hometown Care electric and heating bill assistance, United Way, safety, community support, and diversity and inclusion programs. Employee donations support our company’s United Way campaign, and they also donate their valuable time in our communities. In 2017, more than 93,000 volunteer hours were logged for various initiatives, including Days of Caring, Habitat for Humanity, food drives, tree planting and many other charity events.

Employee $1.1 million

Drive Out Hunger* $475 thousand

Corporate$4.2million

Foundation $1.5 million

Charitable giving

by group

Giving by program

Foundation community grants

14%

Tree planting program

7%

Hometown Care Energy Fund

27%

Corporate giving

14%

United Way, corporate & employee

16%

Drive Out Hunger

6%

Employee gifts with Foundation match

14%Scholarships

2%

0123456789

Drive Out HungerEmployeeFoundationCorporate

20172016201520142013

Giving by year and groupM

ILL

ION

S O

F D

OL

LA

RS

Source: Alliant Energy records

More than $7 million in 2017 and over

$37 million given in the past five years.

* Drive Out Hunger is an annual golf event produced by the Alliant Energy Foundation and supported by our corporate partners in an effort to fight hunger. Proceeds are managed by Second Harvest Foodbank of Southern Wisconsin and distributed to Feeding America member food banks in the Alliant Energy service area.


WorkforceCare for others is a Core Value at Alliant Energy: Together we create a workplace where people feel like they belong and can use their unique backgrounds, talents and perspectives to their fullest potential.

Diversity includes a rich mixture of attributes that make each of us unique. Our company treats all employees with respect and supports a diverse and inclusive workplace. This environment contributes to our ability to provide safe, reliable power and excellent customer service.

2017 Diversity Workforce Executive BoardMinority 5.3% 15.3% 20%

Female 25.8% 26.4% 50%


Age 29 or younger

12%

Age 30-50

48%Age 51

and over

40%*

Employeeage

diversity

*38% are over age 55 and eligible to retire within 5 years

Supplier diversityAlliant Energy’s supplier diversity program provides equal access for all qualified businesses, including those owned by women, minorities, LGBT, service-disabled veterans and small-business designations. Tracking includes both direct Tier 1 diverse suppliers and also Tier 2 suppliers that report on diverse spend. To promote the use of diverse suppliers, all bids over $100,000 are required to consider a diverse supplier. Our target is to achieve over 15% of total spend from diverse suppliers annually with 2017 results at 14%.


$0

$400

$800

$1200

$1600

Total SpendDiverse Spend

20172016201520142013

Diverse supplier spend

MIL

LIO

NS

OF

DO

LL

AR

S

Minority

12%

Woman

34%

Small business

42%

Tier 2

12%

Diversesupplier

breakdown


Research and development In 2017, Alliant Energy invested $3.7 million in various research and development (R&D) programs. This amount includes both discretionary research funds and funds collected from customer billings as mandated by state regulations. Studies were conducted through the Electric Power Research Institute, Iowa Energy Center, Seventhwave (formerly Energy Center of Wisconsin) and various local universities.

Alliant Energy’s participation targets a diverse range of R&D areas related to improving sustainability performance. This information is valuable for new innovations and technology development.

0

1

2

3

4

20172016201520142013

External research and development dollars spent

MIL

LIO

NS

OF

DO

LLA

RS

Source: Federal Energy Regulatory Commission (FERC) Form 1 filings

$3.7$3.2

$3.6 $3.5 $3.6

2017 Research and development funding areas

Customer energy efficiency 20.3%

Generation operations improvement 16.9%

Renewable resources 16.9%

Air quality and climate 8.7%

Grid technology and resiliency 7.8%

Electric reliability 7.1%

Safety, security and privacy 4.9%

Ecosystems and habitat protection 4.8%

Electrification and energy storage 4.3%

Environmental controls 3.8%

Water availability 2.9%

Other (sustainability and education) 1.5%

Source: Alliant Energy records


Our performance - 2019 Corporate Sustainability Report · 7/3/2018 · natural gas and natural gas...

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