Tom Scaramellino, President & Chief Executive Officer

Tom oversees the strategic direction of Essess and is responsible for driving the company’s success in the utility and government sectors. Tom was previously the founder and CEO of Efficiency 2.0, a leading energy efficiency software and rewards provider for the large investor-owned utility market. Tom founded Efficiency 2.0 in 2009 and managed its growth through April 2012, when the company sold to C3 Energy, an energy software firm founded and managed by Tom Siebel of Siebel Systems. Subsequent to the sale, Tom managed C3 Energy’s utility business as Senior Vice President and General Manager of C3 Residential & SMB. Tom is a trained lawyer and has previously held roles with the law firm of Davis Polk & Wardwell and the Office of the Governor of New York. Tom earned his B.A. and M.A. from Harvard University and his J.D. from Yale Law School.

Rebecca Craft, Chief Customer Officer

Rebecca oversees all activities related to customer development and success; program design, delivery and evaluation; and strategic partnerships. She also works closely with the Tom on defining Essess’ role in the future of utility customer operations and energy efficiency markets. Prior to joining Essess, Rebecca was the Director of Energy Efficiency and Demand Management at Consolidated Edison Company of New York, Inc., where she was responsible for the development, implementation, and management of energy efficiency, demand response and peak demand management programs for the Company’s electric and gas systems.  She also served as Assistant to the Chairman of Consolidated Edison and prior to that, Director of the Energy Markets Policy Group, where she developed company policies for the wholesale electric and gas markets. In her past life, she spent more than 11 years at Prudential Financial in a variety of positions in international managed assets, retirement services, corporate strategy and as assistant general counsel. She serves on the board of the Building Energy Exchange in New York City, is a judge for PowerBridgeNY, and has served on the Department of Energy’s State Energy Efficiency Action Network Executive Committee.  She earned a JD from Indiana University in Bloomington and a BA in Economics from Wellesley College.

Jan Falkowski, Vice President of Engineering & Chief Technology Officer

Jan oversees Essess’ engineering efforts and is responsible for alignment among our hardware, software and machine learning teams. He works closely with Tom to execute on a product vision that addresses critical needs in the building energy efficiency market. Jan’s career has focused on the development and deployment of intelligent robotic and sensor systems and supporting software applications. Prior to joining Essess, Jan held senior management and engineering roles at Vecna Technologies, where he was responsible for the R&D and productization efforts of the company’s first commercial robotics product and its subsequent launch in domestic and international markets. Jan received his bachelor’s and master’s degrees at Carnegie Mellon University, where he studied mechanical engineering and robotics.

Navi Singh, Vice President of Solutions Delivery

Navi Singh, an experienced corporate strategist, is responsible for working with Essess’ customers and strategic partners to customize the company’s technology to meet industry-specific needs. Prior to joining Essess, Navi was the director of corporate strategy at AARM Corporation, an alternative asset risk management firm associated with Harvard Business School. Before AARM Corp., Navi was a member of the molecular neurobiology lab in the Biomedical Sciences Research Complex at the University of St. Andrews. Navi received his master’s degree from Harvard University and his bachelor’s degree from the University of St. Andrews in Scotland, U.K.

Erica Tennyson, General Counsel

As General Counsel, Erica is responsible for all of Essess’s legal needs, including compliance, employment, investment, privacy, and intellectual property matters. Erica also assists the Chief Executive Officer and Board of Directors to develop and implement strategies to protect company assets and foster growth. She is a graduate of the University of California, Los Angeles and the University of Michigan Law School, and previously worked in a large law firm setting at Day Pitney LLP.

Zeke Hausfather, Chief Scientist

Zeke Hausfather is an energy systems analyst and data scientist responsible for leading the team that develops Essess’ emissivity and remediation algorithms. Prior to joining Essess, Zeke was a research scientist at Berkeley Earth, the chief scientist at C3 Energy, and the cofounder and chief scientist of Efficiency 2.0, a behavior-based energy efficiency company. Mr. Hausfather received his bachelor’s degree at Grinnell College, masters degrees at both Vrije Universiteit and Yale School of Forestry and Environmental Studies, and will receive his PhD from the U.C. Berkeley Energy and Resources Group.

Bill Morris, VP of Hardware Research & Development

Bill oversees the development and production of the thermal imaging systems and vehicles at Essess. Previously, Bill was a founder of ‘I Heart Engineering’, a Brooklyn-based robotics company, and the managing editor of the ‘I Heart Robotics’ blog. Bill is a classically trained programmer and systems administrator. He received his bachelor’s in mechanical engineering from The City College of New York. In addition to developing a wide range of robots, including a novel wall climbing robot and a quadrotor helicopter for 3D mapping, he has made significant contributions to several academic papers and various open source projects as an active contributor to ROS (Robot Operating System).

John Morrissey, Senior Director of  Software Engineering

John leads Essess’ software development efforts, working closely with Jan, Tom, and the software team to build the platform Essess uses to meet client needs. John’s career has focused on building high-performance systems and software for the communications and scientific communities. Prior to joining Essess, he helped the Harvard School of Public Health tackle large scale research computing challenges. He has also contributed to numerous Open Source software projects. John holds a bachelor’s degree from the Rochester Institute of Technology.

Sheri Olans, Director of Finance & HR

Sheri is responsible for maintaining the company’s financial reporting system and controls. In addition, she serves as the corporate HR manager. Sheri has spent her career in the financial services industry and has supported a number of startups as part- or full-time CFO and in similar finance and HR roles.


Wes Matthews, Manager of Drive Operations

Wes oversees all drive operations, including scheduling, hiring, training, logistics and routing for our vehicle fleet and drivers. In that capacity, Wes ensures the safety of our vehicle fleet and drivers during the collection of up to 500 terabytes of data per vehicle each year. Wes is also responsible for our data export and storage activities and the continued development of our driver support software and tools.

Back to Top

Board of Directors

Professor Sanjay Sarma, Chairman of the Board

Professor Sanjay Sarma is a professor in the Mechanical Engineering Department at MIT. He is a sought-after speaker and advisor on the topic of “negawatts” (wasted watts) and the global impact of wasted energy. Professor Sarma has over 50 publications in computational geometry, virtual reality, manufacturing, CAD, RFID, security and embedded computing. Professor Sarma received a doctorate from the University of California at Berkeley, a master’s degree from Carnegie Mellon University and a bachelor’s degree from the Indian Institute of Technology.

Vinny Olmstead

Vinny Olmstead is a co-founder and Partner at Vocap Investment Partners based in the firm’s Vero Beach office, and is a board member for Apollidon Learning, Bridgevine, and formerly Sundrop Mobile before its sale to Mercury Payment Systems. Prior to Vocap, Mr. Olmstead was CEO of Bridgevine, an advertising technology company focused on customer acquisition and recognized by the INC 500/5000 the past six years in a row. Mr. Olmstead has a master’s degree in business administration and health sciences from the University of Florida and a bachelor’s degree in accounting from Flagler College.

Tom Scaramellino, President & Chief Executive Officer

Tom oversees the strategic direction of Essess and is responsible for driving the company’s success in the utility and government sectors. Tom was previously the founder and CEO of Efficiency 2.0, a leading energy efficiency software and rewards provider for the large investor-owned utility market. Tom founded Efficiency 2.0 in 2009 and managed its growth through April 2012, when the company sold to C3 Energy, an energy software firm founded and managed by Tom Siebel of Siebel Systems. Subsequent to the sale, Tom managed C3 Energy’s utility business as Senior Vice President and General Manager of C3 Residential & SMB. Tom is a trained lawyer and has previously held roles with the law firm of Davis Polk & Wardwell and the Office of the Governor of New York. Tom earned his B.A. and M.A. from Harvard University and his J.D. from Yale Law School.

Michael Adams

Michael is a venture capitalist and private equity investor who serves as an advisor and board member of a number of technology and energy-related companies, including Consert and Astrum Solar. Michael was previously the Managing Director of Technology Ventures for Constellation Energy (now Exelon Corporation), one of the largest electric utilities and energy providers in the United States. Prior to entering venture capital, Michael held a number of other roles at Constellation, including Vice President of Portfolio Management. Michael is a trained civil and environmental engineer. He received his bachelor’s degree from North Carolina State University and a master’s degree from MIT.

Screenshot 2016-02-24 14.33.26

Ed Walters

Ed is currently a partner at Tamarisc, a venture capital fund that focuses on investments in real estate and building technologies that promote efficient resource allocation. Ed was previously with Morningside Group – an international investment firm focusing on biotechnology, IT, clean energy, and real estate – where he led strategic initiatives across Morningside Ventures and Morningside Foundation that would maximize societal and economic impact. In September 2014, the Foundation gave $350M to the Harvard School of Public Health to address the world’s toughest health problems. Prior to Morningside, Ed worked in the Brookings Institution’s Economic Studies program on US health reform implementation with Dr. Mark McClellan, former FDA commissioner and CMS administrator. Prior to Brookings, he worked on US health reform in the US Senate HELP Committee — one of two Senate committees responsible for drafting health reform legislation. Ed began his career in international development and global health at the Clinton Foundation and Partners in Health. Ed holds a master’s from Oxford University, where he was a Clarendon Scholar, and a BA from Trinity College.

Back to Top


Screenshot 2016-02-24 14.13.46

Joseph P. Kennedy II, Energy Efficiency Advisor

Joseph P. Kennedy II serves as Chairman and President of Citizens Energy Corporation, a Boston-based company he founded in 1979 to use profits from successful energy ventures to finance heating assistance to help poor households make it through the winter. Before leaving Citizens to serve 12 years in the U.S. Congress, Kennedy launched innovative businesses in the oil, gas, electricity and health care industries, using profits from operations in the U.S. and abroad to fund social programs wherever Citizens did business. Since returning to the helm of Citizens Energy in 1999, Kennedy has expanded the company’s signature heating oil program to 23 states, moved aggressively into solar and wind development, pioneered high-voltage transmission partnerships, and started new health care ventures. Outside of Citizens, he has started businesses in the telecom and bio-tech industries and served as a board member and outside adviser to numerous companies in the high-tech, bio-tech, and financial software fields. The eldest son of the late U.S. Sen. Robert F. Kennedy, the former Congressman and his wife Beth live in Boston.

Berwick bio photo

Ann Berwick, Energy Efficiency Advisor

Ann Berwick served as Chair of the Department of Public Utilities under Governor Deval Patrick from June, 2010 until January 2015.  She was also the president of the New England States Committee on Electricity from 2012 to 2015.  Prior to being appointed chair of the DPU, Ann was the Commonwealth’s Undersecretary for Energy and also Acting Chair of the Energy Facility Siting Board. Ann served as Chief of the Environmental Protection Division in the Massachusetts Attorney General’s Office from 1991 to 1996, where she exercised joint oversight of the Massachusetts Environmental Strike Force.  Ann has been a legal services attorney, and a partner in the litigation department at the Boston law firm Goulston & Storrs.  Ann holds a B.A. from Radcliffe College and a J.D. from the University of Wisconsin Law School.  She has four grown children and lives in Newton with her husband.

Screenshot 2016-02-24 14.12.47

Wanda Reindorf, Energy Efficiency Advisor

Wanda Reindorf is an experienced executive who has worked as a CFO and business strategy leader with venture capital backed start-ups through public companies.  She is currently a member of the Clean Energy Venture Group, which provides early stage capital and management expertise to clean energy companies.  Wanda is committed to building businesses in the Cleantech sector and has worked in the energy efficiency, utilities and regulatory policy, renewable energy, smart grid, demand response and energy software and services sectors as an executive, investor, board member and advisor. Past experience includes Executive Vice President & Chief Financial Officer of Conservation Services Group for nearly a decade and Director at PWC (PriceWaterhouseCoopers) in Business Strategy and Operations Consulting Services in New York and Europe. Wanda received her MBA from Yale University School of Management, and her BA from the University of Pennsylvania, graduating with honors, Phi Beta Kappa, summa cum laude. She is fluent in several languages and is a licensed pilot.

Deborah Hurley, Privacy Advisor

Deborah Hurley is the principal of the consulting firm she founded in 1996, which provides advisory services on information and communication policy. From 1997 to 2002, Ms. Hurley was director of the Information Infrastructure Project at Harvard University. Previously, she was an official at the Organization for Economic Cooperation and Development in Paris, where she specialized in emerging issues related to protection of personal data and privacy. Ms. Hurley has authored numerous publications, including “Pole Star: Human Rights in the Information Society” and “Security and Privacy Laws: The Showstoppers of the Global Information Society.”

Jonathan Zittrain, Privacy Advisor

Jonathan Zittrain is a professor of law at Harvard Law School and the Kennedy School of Government, a professor of computer science at Harvard’s School of Engineering and Applied Sciences, and a co-founder of the Berkman Center for Internet and Society at Harvard University. Mr. Zittrain’s research interests include battles for control of digital property and content, cryptography, and electronic privacy. Mr. Zittrain serves on the boards of the Electronic Frontier Foundation and the Internet Society. He is the author of “The Future of the Internet – And How to Stop It.”

Myron S. Scholes, Strategic Advisor

Myron S. Scholes has been the Frank E. Buck Professor of Finance, Emeritus, at the Stanford University Graduate School of Business since 1996. He is chairman of the Board of Economic Advisors of Stamos Capital Management. He is co-originator of the Black-Scholes options pricing model, which is the basis of the pricing and risk-management technology that is used to value and to manage the risk of options contained in instruments around the world. For this work, he was awarded the Alfred Nobel Memorial Prize in Economic Sciences in 1997.

Mitchell Wilk, Strategic Advisor

Mitch Wilk is former commissioner and president of the California Public Utilities Commission, a position he assumed following his service as legislative secretary and the deputy chief of the staff to former California Gov. George Deukmejian. Mr. Wilk subsequently formed Wilk & Associates Inc. a consultancy specializing in strategic advice to CEOs and other senior executives of regulated industries with a focus on independent, sounding board guidance regarding industry and regulatory change and opportunities, legislation, and media relations.

Scott Wood, Technology Advisor

Scott Wood is a leading expert in building science thermography as an investigative tool for commercial and residential buildings. He performs building investigations and evaluations from architectural design review to completed building testing including water testing fenestrations and enclosures. As the primary independent instructor/consultant for the Building Science Institute (BSI), Mr. Scott provided the curriculum and instructed the Certified Building Science Thermographer course from 2003-2011. Since 2010 he has provided support as the Infrared Thermography forum moderator for the online Inspectors Journal.

Professor Youssef Marzouk, Technology Advisor

Professor Marzouk is a Boeing assistant professor within the Department of Aeronautics and Astronautics at MIT. He worked at Sandia National Laboratories. He is the recipient of numerous academic awards such as the Department of Energy Early Career Research Award, Truman Fellow at Sandia National Laboratories, Hertz Foundation Doctoral Thesis Prize, Joseph H. Keenan Prize at MIT Department of Mechanical Engineering, Hertz Fellow, and the Barry Goldwater Scholarship at MIT.

Back to Top