Management Team

The management team at AESC is dedicated to maintaining a high level of proficiency in state-of-the-art systems and a supportive, team-based work environment in a trustworthy partnership with our clients.

Antonio Corradini, P.E.


As AESC President and CEO, Mr. Corradini is responsible for achieving the goals established by the Board of Directors, working closely with them as a key contributor to the strategic direction of the company. He began his AESC tenure in 2008 as a Senior Engineer, subsequently holding a series of progressively responsible positions, including Engineering Manager for the San Francisco Bay Area office, then Engineering Director based in Southern California and most recently as Vice President of Operations. This experience gives him a unique understanding of the organization and its customers.

Today Antonio works closely with our Program Managers in their daily delivery of program support to some of the largest utilities in the nation, while sharing his experience and subject matter expertise with our engineering team as they deliver highly technical solutions to our clients in a variety of areas, including energy efficiency, demand response, self-generation, regulatory compliance and retro-commissioning.

Mr. Corradini personally manages the emerging technology programs wherein he supports the utilities in understanding the effectiveness of new energy technologies, while frequently taking a lead role in large industrial energy audits, where his industrial experience is leveraged to identify and deliver optimal solutions. He is often engaged by utilities and private customers to provide feasibility studies related to both energy efficiency and integration of renewable energy.

Mr. Corradini began his career in his native Italy, working for an automotive components manufacturing plant, initially as a Process Engineer and then as Engineering Manager. Upon arriving in the United States as a graduate student and prior to joining AESC, he held an internship position at Sempra Utilities in the Strategic Planning Department. Antonio is a registered Professional Engineer both in Italy and California (license # M35654), and is an AEE Certified Energy Manager. He received both his Bachelor and Master of Science degrees in Mechanical Engineering from the University of Brescia, Italy, and his Master of Business Administration from the University of California San Diego.

Mary E. Kruse


As Business Manager and Controller, Mary is responsible for all business-related activities, including finance, human resources, employee benefits, risk management and facility supervision. In this role, she oversees all accounting functions and legal issues, including contracts, compliance, budgets and financial reporting. Mary is also involved in proposal development, and she provides technical writing and program management support to several of AESC’s clients. Mary reports directly to the Executive Team and supervises the administrative staff.

Briana Rogers


Ms. Rogers has been serving the utility industry for 11 years, specializing in program implementation and management, including policy support, process improvement, quality assurance and quality control. During her years at AESC, Briana has held positions in both engineering and program management tracks, providing her deep energy engineering, utility and policy expertise.

As Director of Operations for the Southern California region, Briana is responsible for achieving the goals established by AESC Executive Management in the areas of engineering, program management and business development. Briana currently manages investor-owned utility and publicly owned utility customized incentive programs, emerging technology efforts, technical assistance programs, evaluation, measurement and verification studies, program policy and guideline documents, and various integrated audit efforts for both private end-users and on behalf of utilities.

Ms. Rogers received her Bachelor of Science degree in Mechanical Engineering from California Polytechnic State University, San Luis Obispo. She is a certified Engineer-in-Training, and she has undertaken technical training in a broad spectrum of fields ranging from missile defense systems to biomedical engineering.

Kevin J. Tock


Mr. Tock joined AESC in 2015 and has over 30 years of experience in the development and application of industrial software products, including 14 years with Invensys and nine years with Honeywell. Mr. Tock has significant senior management experience in engineering, product management, product development and program management.

As the Director of Software at AESC, he is currently responsible for all of AESC’s software and tool development projects. He provides customer-focused technical leadership, organizational coordination and effective decision-making in a continuous improvement environment.

Previously, from 2013 to 2015, Mr. Tock was the Vice President, Product Development & Support at Enerliance, a leader in the development of intelligent optimization software for large-scale air conditioning systems for commercial buildings, where he was responsible for the LOBOS product. From 2009 to 2013, Mr. Tock was with Intelligent Energy, a global leader in the development of fuel cell power systems, where he was the General Manager of U.S. Operations.

Prior to that, Mr. Tock was with the Invensys Industrial Automation business, a leading provider of engineering and information technology, where he held various senior leadership positions, including General Manager Industrial Software Business Unit, General Manager Manufacturing Execution Systems Business Unit, Vice President Solutions Development and Vice President Safety and Critical Control Engineering Operations. Mr. Tock was also with the Honeywell Industrial Automation and Control business for nine years as an Application Development Manager and Product Manager, responsible for advanced control products built on distributed control systems.

Kevin earned his Bachelor of Science in Electrical Engineering degree from Valparaiso University in Valparaiso, Indiana, and was a member of both the Board of the Long Beach Green Business Council from 2011 to 2013 and Board of Project Haystack from 2014 to 2015.

Allison Bially


Allison Bially is Director of Business Development and provides program management for AESC. As part of the strategic growth team, Ms. Bially uses her years of experience in efficiency program management to support company expansion initiatives and to cultivate excellent client, vendor and partner relationships. In addition, Ms. Bially leads AESC’s role as Program Administration Manager for two of California’s statewide Institutional Partnership Programs, California Department of Corrections (CDCR) and the State of California (SOC), in which she helps implement energy projects in state-owned facilities throughout California.

Ms. Bially holds a Bachelor’s degree from the University of Rochester and a Master’s degree from New York University. She is the Association of Energy Service Professionals (AESP) California Chapter Vice President and serves on the leadership team of the Association of Women in Water, Energy and Environment, San Diego Chapter. Prior to joining AESC, Ms. Bially designed and ran third-party energy efficiency programs in California, including the EnergySmart Jobs (ESJ) Program, an $18.8 million venture supported by the California Energy Commission (CEC)/American Recovery and Reinvestment Act (ARRA). This program provided free energy audits throughout California for grocery and convenience stores, along with select direct install and retrofit measures.

Patsy Dugger


Ms. Dugger joined AESC’s leadership team in 2018 to support the firm’s strategic growth, business development and program development efforts. She brings more than 23 years of senior leadership in the energy industry, both at PG&E and for energy consulting and global engineering firms, where she partnered with large clients to develop and deploy innovative energy solutions for commercial and industrial markets.
Prior to AESC, Patsy spent five years leading western regional business development and operations for the energy practice at APTIM, a global engineering and consulting firm. She won and oversaw projects with PG&E, SCE, SDG&E, SoCalGas, LADWP, and SFPUC, and consulted on national energy, sustainability and resiliency programs and initiatives.

From 2010 to 2013, Patsy was at Ecova in the role of Director of Operations for Commercial and Industrial Utility Solutions, and Director of Portfolio Management leading product development. For nine years from 2000 to 2009, Patsy was a senior manager in PG&E’s Customer Energy Management department, where she managed and supervised multiple statewide and local energy efficiency programs including Savings By Design, Retrofit Express, Industrial New Construction, and a large portfolio of programs, products and solutions for PG&E’s Agriculture and Food Processing markets.
Patsy was a member of the United States Technical Advisory Group 242 (TAG 242) for the development of ISO 50001: the world’s first international Energy Management System Standard and has been involved in subsequent Superior Energy Performance and Strategic Energy Management utility programs over the past ten years.

From 2014 to the present, Patsy has held role of President for the Association of Energy Service Professionals California Chapter (AESP California), which organizes educational and networking events focused on key policy and program topics in California’s evolving energy market.

John Clint


Mr. Clint has over 30 years of combined experience as a Senior Program Manager/Senior Engineer Analyst, executing research and developing engineering solutions in the energy field, and as a Senior System Engineer, directing the planning, design, development and installation of large-scale, multi-level software systems.

Over the past 16 years at AESC, John has led numerous energy engineering, technology research and software development efforts. Mr. Clint has managed demand side management, distributed energy resource, advanced energy storage, renewable energy and regulatory programs, performing assessment, design and implementation. John has evaluated many energy and transportation systems, including HVAC, advanced lighting, fuel cells, transportation electrification, diesel emissions, CNG vehicles, cool storage systems, cogeneration, compressed air, thermal oxidizers and others.

Prior to joining AESC, John worked as a Senior Systems Engineer at SAIC and its subsidiary, TransCore. John’s main tasks at SAIC included analysis and research of fuel cells, TES systems, energy efficiency technologies, alternative energy systems and electric vehicles. At TransCore, he performed as a Systems Engineer for development of the Dulles Toll Road and the Powhite Parkway Express. John was lead Systems Engineer on the Crescent City Connections Divisions Toll Road project.

John earned his Bachelor of Science degree in Information Systems at San Diego State University.

Brian Lynch, LEED AP


Since the early 2000’s, Brian has specialized in project/program management, energy efficiency solutions and green building consulting. As Director, Brian leads business development, strategy and implementation of AESC’s energy consulting services in the Pacific Northwest region. In previous roles at AESC, Brian managed large contracts with AESC’s key customers across the country while initiating the company’s office in the Portland, OR, area.

Prior to joining AESC, Mr. Lynch worked for Ecova to provide oversight for the delivery of all retail channel programs in the Western U.S., including programs for key utility clients. Mr. Lynch was a Commercial Program Manager for Earth Advantage Institute before his time at Ecova.

Before his time in Portland, Mr. Lynch worked as Energy and Sustainability Project Manager in the United Arab Emirates, where he led energy services projects and was a LEED consultant.

Mr. Lynch earned his Bachelor of Science degree in City and Regional Planning from California Polytechnic State University, San Luis Obispo. Mr. Lynch holds a Master of Arts degree in Natural Resources and Sustainable Development from the United Nations University for Peace and a Master of Arts in International Affairs from American University. Mr. Lynch has been a LEED® Accredited Professional since 2007.

Donald Pratt


Donald Pratt has more than 20 years of experience in the development and management of computer software information systems. At AESC, he develops computer programs in support of energy efficiency, intelligent systems and engineering projects. While past projects have used a variety of languages and technologies (C, C++, Visual Basic, Java, Win32, Access, etc.), recent work has focused on C# and SQLServer for desktop (WPF) and web (ASP.Net) environments.

Don received his Bachelor of Science degree in Cognitive Science, with a concentration in Artificial Intelligence and Software Engineering, from the University of California at San Diego. He earned his Master of Science degree in Computer Science from San Diego State University.

Karen Leifheit


Karen Leifheit leads the development of proposals for the company. Outside this primary role, she provides program/project management for San Diego Gas & Electric’s Energy Advantage Program (EAP). She manages energy audits, energy savings calculation projects, incentive application assistance and provides project peer reviews. In prior roles she managed AESC’s energy engineering projects for Southern California Edison’s and Southern California Gas Company’s Local Government Partnerships, the Southern California Regional Energy Network and Pacific Gas and Electric Company’s Large Integrated Audit program. She also spent several years involved with the incentive application review process for the California Solar Incentive and Self-Generation Incentive Program.

Prior to joining AESC, Karen was an Energy Analyst for an energy services company. She was responsible for securing all utility rebates and incentives for customer’s energy efficiency projects completed in the Western U.S. and Hawaii.

Previous to the energy industry, Ms. Leifheit worked for 10 years executing and managing software testing, technical support, documentation writing, product installation and training for commercial software applications.

Ms. Leifheit received her Bachelor of Arts degree in Mathematics with a minor in Computer Science from the State University of New York at Geneseo.

Dara Salour


Dara Salour has over of 26 years of experience in the energy industry, and currently manages AESC’s distributed generation practice. As part of his Program Management responsibilities, he oversees application reviews and inspections for the Self-Generation Incentive Program and California Solar Initiative Thermal Program. AESC clients administering these programs are Southern California Edison, Pacific Gas and Electric, Southern California Gas and the Center for Sustainable Energy. He serves as the lead consultant to the Statewide Self-Generation Incentive Program Working Group, which includes the CPUC and the investor-owned utilities.

Prior to joining AESC, Mr. Salour worked for RCM Digesters, where he was responsible for the interconnection of farm-based anaerobic digestion projects in the three California IOU’s service territories. He also worked closely with the SMUD advanced, renewable and distributed generation technologies group to develop three independent dairy power production projects in Galt and Elk Grove, Calif.

Prior to joining RCM Digesters, he held a position with Black & Veatch Corporation, where he provided consulting engineering services in the area of renewable energy, including assessment of renewable energy resources and technological status in 12 former Soviet Union countries for the European Bank of Reconstruction and Development, and independent engineering evaluation of an Integrated Gasifier Combined Cycle project operating on biomass fuel in Andhra Pradesh, India.

He has also worked at the California Energy Commission, where he managed $4.4 million of wind, biogas and fuel cell power research and development contracts as part of the Energy Technology Advancement Program.

Mr. Salour received his Bachelor of Science degree in Mechanical Engineering from California State University, Sacramento, and his Master of Science degree in Mechanical Engineering from the University of California, Davis.

James Ferro


James Ferro designs and implements program and policy solutions at the water-energy nexus. With extensive experience in program design, project development and management, public policy and education, James is an effective communicator and advocate for advancing innovative water-energy initiatives.

James manages the local government programs in Southern California for AESC, delivering energy engineering and technical services to cities in the region as they pursue energy efficiency projects in their public facilities, including water and wastewater systems. James manages these programs for AESC’s major utility customers, including Southern California Edison, Southern California Gas Company, San Diego Gas & Electric and The Energy Network.

James received a Master of Environmental Law and Policy from Vermont Law School and a Bachelor of Arts in Political Science from the University of Southern California. James is currently an Adjunct Professor at Chapman University, teaching courses in both water and energy policy in the Schmid College of Science and Technology.

Matthew Minerich, P.E.


Matthew Minerich brings a broad range of energy industry experience to AESC clients, specializing in energy audits, building energy modeling and performing technical reviews for utility energy efficiency programs. Mr. Minerich is responsible for managing engineering support and technical quality control for AESC’s clients in the Southeast.

Mr. Minerich entered the energy efficiency industry in 2006 as a project development engineer for an energy services company. Serving commercial and industrial clients in the Southeast, he was responsible for developing and implementing comprehensive energy efficiency projects involving lighting, domestic water, building automation and HVAC systems.

Mr. Minerich holds a Bachelor of Science degree in Mechanical Engineering from the University of Virginia. He is a registered Professional Engineer in North Carolina.

Sarah Sturdy


Sarah Sturdy uses her 10 years of energy industry experience to provide program management, policy support and quality control for PG&E’s Retro-Commissioning, Non-Residential New Construction, Large Integrated Audit, Third Party and Commercial Whole Building programs.

Before coming to AESC, Sarah worked at both CLEAResult and PECI. She’s worked closely with utilities and customers throughout the western United States in developing, implementing and managing energy programs.

Notably, Sarah implemented one of the largest residential smart thermostat studies in California with PG&E’s Emerging Technology group. The study included outreach to over 15,000 customers and the installation of over 2,500 smart thermostats. She also successfully guided Questar Gas through a pilot for early adoption of new ENERGY STAR guidelines; and won EPA’s ENERGY STAR Partner of the Year award in 2010 and 2011, as well as the organization’s Award for Sustained Excellence from 2012 to 2014.

Today, Sarah uses her expertise, experience and leadership capabilities to deliver advanced energy solutions on behalf of AESC’s clients.

Keith Valenzuela, P.E., CEA, BESA


Keith Valenzuela manages and mentors the engineering staff in the Pasadena and Carlsbad, Calif. offices. He has in-depth experience with a variety of energy savings projects, including lighting retrofits, variable speed drive installations on fans and pump motors, HVAC retrofits, building envelope modifications, retro-commissioning, pumping system retrofits and improvements, air compressor retrofits and others. Keith is an expert building energy modeler with eQUEST software.

Keith is a professional engineer in California, an AEE Certified Energy Auditor, Certified Water Efficiency Professional and Certified Building Energy Simulation Analyst. Keith received his Bachelor of Science degree in Mechanical Engineering, and he holds a Master of Engineering Management degree from Ohio University.

Ronald K. Ishii, P.E., DGCP, CMVP


Mr. Ishii helped found AESC and served in leadership for over 26 years. As a revered member of the extended AESC family, he continues to contribute to the company’s success.

With over 30 years of energy industry experience, Mr. Ishii provides consulting services in the areas of commercial/industrial energy efficiency, distributed generation and intelligent energy system technologies. His clients include utilities and government agencies, as well as large end users of energy. Before joining AESC, Mr. Ishii was a Program Manager at SAIC where he was responsible for utility industry consulting services, energy market research, and energy technology assessment and demonstration. He began his career at San Diego Gas and Electric working in the gas turbine maintenance, power plant performance testing, gas operations and research & development departments.

Mr. Ishii earned his Bachelor of Science degree in Mechanical Engineering from San Diego State University. He is a licensed Professional Mechanical Engineer in the State of California, a Distributed Generation Certified Professional and Certified Measurement & Verification Professional. Currently, Ron is a member of the California Technical Forum. He previously served as the Chair of the CADER Technology Committee and was a member of the UC Irvine National Fuel Cell Research Center Technical Advisory Committee. Ron has also served as a member of the AESP California Chapter board, California Energy Commission’s Energy Innovations Small Grant Program Technical Review board and the California Manufacturing Technology Consultants board. Mr. Ishii is a member of AEE, AESP, ASME and ASHRAE. He has published numerous articles covering distributed generation, intelligent energy systems, retro-commissioning, renewable energy and energy storage technologies.