Marisa Ihara


Market Analysis and Resource Planning:
Demand forecasting, Integrated resource planning

Cost of service studies (marginal and embedded)

Marisa Ihara

Senior Project Manager

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Summary of Experience

Marisa Ihara has over twenty years of experience in the energy industry bringing technical expertise in econometric analysis, financial modeling, and database management. She has assisted clients with rate design, integrated resource planning, utility prudency reviews, contractual disputes, acquisition/divestiture due diligence, market power studies, and energy market assessments. She has designed unit commitment and gas storage optimization models and has performed valuations of various electric generation projects, natural gas pipeline and storage facilities, fuel supply contracts, and power purchase agreements.

Ms. Ihara’s demand forecasting and supply planning experience includes an engagement in which she developed natural gas demand forecasts and assisted in the development of long-term Integrated Resource Plans on behalf of several utilities located in the Northeast, Midwest, and Pacific Northwest. She has also reviewed demand forecasting methodology for both a multi-state gas utility and a Canadian electric utility. For the gas utility, she recommended certain process changes to improve methodology and forecast accuracy, and for the electric utility she analyzed and evaluated the statistical and quantitative projection methods used, including end-use and econometric forecasting techniques.

Ms. Ihara served as an Intern Engineer and Application Developer at General Electric Power Systems Energy Consulting before joining Concentric. She is proficient in VBA, MATLAB, SQL, and SPSS.


B.S., magna cum laude, Applied Mathematics, Brown University


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