About HMW International, Inc


Founded in 1992, HMW International is a consulting firm specializing in the innovation and development of energy policies and programs to stimulate greater use of sustainable energy resources and practices. Its principle partners are Dr. Jan Hamrin and Tim Rosenfeld who together have nearly 60 years of experience in renewable energy and energy efficiency policy, program development and consulting. HMW consults and manages projects directly or by assembling and leading teams of experts appropriate to the project. HMW can draw from a wide-ranging network of technical, policy, economic, business and legal experts with deep experience in renewable energy and energy efficiency to successfully achieve our client’s goals.



Principal Partners



Dr. Jan Hamrin


    Dr. Hamrin is an internationally recognized expert and innovator in electric industry policy, restructuring and integration of public interest goals for sustainable energy markets. She has over 30 years experience providing policy and technical support for the implementation of renewable energy and energy efficiency programs throughout North America and globally. She has testified before federal and state regulatory commissions in dozens of public policy cases and played a key role in the implementation of the federal Public Utilities Regulatory Policies Act.
    Dr. Hamrin founded and served from 1997 to 2008 as President of the Center for Resource Solutions (CRS), a non-profit organization created to foster leadership in the implementation of clean energy and sustainable development practices through education, training and expert assistance. She founded and served for nine years as Executive Director of the Independent Energy Producers Association in California and founded the National Independent Energy Producers Association. She also co-founded and directed research for the National Council on Competition in the Electricity Sector (a joint project of NARUC and NCSL). She led the CRS team in the development of the Western Renewable Energy Generation Information System (WREGIS) and presently serves as the Secretary General of the Environmental Tracking Network of North America (ETNNA.)
    Dr. Hamrin has worked on renewable, energy efficiency and climate policy in numerous countries throughout the Americas, Europe and Asia. For 9 years she led a team of experts for the Packard and Energy Foundations’ joint China Sustainable Energy Program to assist Chinese institutions with the design and implementation of renewable energy policies and projects throughout China. She was a key advisor in the development of China’s first renewable energy law. She serves on Advisory Committees for the International Energy Agency, the US Department of Energy and has served on many other national and international advisory committees including the G-8 Renewable Energy Advisory Committee.
    Dr. Hamrin has designed educational programs and curricula, including the establishment of the University of California Energy Extension Service. She is the author of numerous reports and handbooks on cutting edge energy issues.




Tim Rosenfeld


    Tim Rosenfeld has worked for over 25 years on sustainable energy policy and development in both the public and private sectors. He has worked extensively with local governments to develop innovative local policies and programs to promote energy efficiency and renewable energy.
    Mr. Rosenfeld is one of the pioneers in the development and implementation of energy efficiency and renewable energy programs beginning in the late 1970s at the California Energy Commission and the Local Government Commission. He worked with cities and counties throughout California to implement local energy initiatives. He developed or managed wind farms through the 1980s with Pacific Wind & Solar and American Diversified Corporation.
    Mr. Rosenfeld developed or consulted on energy and information technology related ventures in the 1990s including development of electronic books and databases for clients including Sony, Federal Express, and NARUC.
    Since California’s energy crises in 2000, he has advised many local governments in California on the development of sustainable energy solutions. He teamed with the Local Government Commission in 2001 to create Regional Energy Authorities in Humboldt and Ventura Counties. As a consultant to Marin County and cities from 2003 to 2010, he helped develop, fund and served as Director of the Marin Energy Management Team. The Team provided comprehensive technical and financial assistance to all of Marin local governments, school districts, and special districts to implement energy efficiency and renewable projects. It obtained over $40 million in federal allocations for zero-interest bonds (CREBs) for solar projects on Marin public facilities. He also consulted on the energy and water resource policies for the countywide plan update and the feasibility and development of community choice aggregation.
    Mr. Rosenfeld was retained in 2004 by Navigant Consulting to help implement the California Local Energy Efficiency Program funded under a grant from the CPUC, managed the project’s pilot program with the City of Oakland and authored an Energy Efficiency Action Plan for the city. He was also the principal author of the Community Planners Early Action Handbook for GHG Reduction in New Development developed with ICLEI for the Bay Area Air Quality Management District in 2010.