MIDAMERICAN ENERGY COMPANY - Berkshire …

1 OURCOREPRINCIPLESCUSTOMERSERVICE EMPLOYEECOMMITMENT ENVIRONMENTALRESPECT REGULATORYINTEGRITY OPERATIONALEXCELLENCE FINANCIALSTRENGTHMIDAMERICAN ENERGY COMPANYSERVICE AREA10,600 square milesELECTRIC CUSTOMERS SERVED760,000 NATURAL GAS CUSTOMERS SERVED742,000 OWNED AND CONTRACTEDGENERATION CAPACITY8,703 megawattsCUSTOMER COMMITMENT AND SATISFACTION Our customers deserve the best, and we re committed to providingexceptional service. We solicit customer feedback to ensure we not onlymeet, but exceed, their expectations and we strive to rank among thenation s leading ENERGY providers in national surveys measuring overallcustomer satisfaction. MIDAMERICAN ENERGY was recognized as a Customer Champion byCogent Reports 2016 Utility Trusted Brand & Customer EngagementResidential study. MIDAMERICAN ENERGY also received the CustomerChampion and Most Trusted Business Partner designations in CogentReports survey of commercial customers.

2 Cogent Reports is a researchdivision of Market Strategies ENERGY LEADER In 2016, we announced our 100% renewablevision; we want to provide 100% renewableenergy for our customers. That vision involvescompletion of our $ billion, 2,000-megawattWind XI project the largest economicdevelopment project in Iowa s history. When MIDAMERICAN ENERGY began investing inrenewable ENERGY in 2004, 70% of ourgeneration capacity came from coal and nothingcame from wind. At year-end 2016, 48% of ourgenerating capacity came from ENERGY COMPANY , based in Des Moines, Iowa, meets customers ENERGY needs by providing safe, reliable, affordable and clean ENERGY tocustomers in Iowa, Illinois, South Dakota and J. FEHRMANP resident and CEO> CONTINUED ON BACKGENERATIONCAPACITYWINDCOALNATURAL GASNUCLEAR/OTHERCUSTOMERSERVICE EMPLOYEECOMMITMENT ENVIRONMENTALRESPECT REGULATORYINTEGRITY OPERATIONALEXCELLENCE FINANCIALSTRENGTH When the Wind XI project is complete, our annual renewableenergy generation is expected to reach a level that sequivalent to 89% of our Iowa customers annual retailusage.

3 We will continue to evaluate opportunities to realizeour 100% renewable vision. MIDAMERICAN ENERGY is the No. 1 owner of wind-poweredgeneration among rate-regulated ENERGY providers. GIVING BACK TO COMMUNITIES Through community involvement, valued partnerships,sponsorships and charitable giving, we re committed to makingour communities the best they can be. We sponsor a varietyof organizations and events that promote science, technology,engineering and math education, student athletes and renewableenergy. Through our Global Days of Service and Matching Giftprograms, we support employees contributions of time andmoney to charitable organizations or educational institutions oftheir ENVIRONMENTAL RESPECT For the 15th year in a row, MIDAMERICAN ENERGY was honoredby the National Arbor Day Foundation and the NationalAssociation of State Foresters with the Tree Line USA designationin recognition of efforts to preserve and protect trees in thecommunities we PROJECTS OWNED BYMIDAMERICAN ENERGY COMPANYO perational projectsWind projects beingbuilt in 2017