About Sunlight Energy Group

We are seasoned business professionals with years of problem-solving experience, and deep expertise in the energy field.

Our History

In 2009, industry veterans came together to form a company to develop, finance, own, and operate solar energy projects with a focus on helping to promote access to clean, affordable renewable energy. Eventually, they realized that the best way to help their clients was to holistically manage their entire energy portfolio. Thus, Sunlight Energy Group was formed. 

Today, the Sunlight Group of companies has assembled some of the most experienced, well trained, and well-educated energy professionals to help commercial and industrial clients professionally manage their energy. We like to say we bring “big company” solutions to the small to medium market.

Mission Statement

Sunlight Energy Group is a faith-based company that strives every day to be a blessing to our customers, partners, suppliers, employees, and community.

Our Values

Our Leadership

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Jim Mumm

Executive Vice President

Jim has over 33 years of experience helping commercial clients succeed at strategy, energy management, and cost reduction. With in-depth background in regional power pools, energy usage reduction, complex accounts, procurement, and best practices in energy management systems, he led the highest-performing team at a northeastern energy consulting firm before starting Sunlight Energy Group with his partners. Jim is a Certified Energy Professional (CEP) and a Certified Energy Manager (CEM). He has a B.B.A. in Marketing, an M.S. in Business Computer Information Systems, and an M.B.A. in Management from CUNY Baruch College in New York City.

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Stacey Hughes

Chief Financial Officer

More than 21 years experience in renewable energy finance. Managing Director (Fixed Income Derivatives) at Societe Generale. Analyst at Salomon Brothers (Capital Markets and Financial Institutions Group). BS in Finance from California Polytechnic University. MBA from Harvard Business School.

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Ed Klehe

Chief Investment Officer

Extensive background in project finance, solar development, derivatives and tax equity. Raised investment funds and managed the construction, acquisition, and ongoing operations of more than 106 MW of solar energy projects. Managing Director and Group Head (Structured Credit and Principal Finance). Masters degree from HEC School of Management in Paris.


Bill Zachary

Chief Development Officer

Extensive background in military housing, municipal debt, derivatives and renewable energy via public-private partnerships. Managing Director and Group Head (Municipal Finance). Analyst at Smith Barney (Municipal Finance). BA degree from Harvard. Additional studies at the Harvard Kennedy School of Government.

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