Our Team

Highly Skilled Professionals Delivering Exceptional Solar Solutions

Talk to Us and Learn More About the Advantages of Solar 520.822.8377

Meet the Solar Gain Team

Ken Riley, President

Ken is a registered civil engineer and has worked in the construction industry for more than 30 years with the Kiewit Companies. He has held executive oversight for multiple business units and estimated, negotiated, and executed numerous large projects, ranging from $250 million to $1+ billion construction value. These include roads, bridges, dams, rail projects, and treatment and power plants. Notable projects include the Carlsbad Desalination Plant, the Pine Tree Wind Farm commissioned by the LA Department of Water and Power in the Tehachapi Mountains, the Los Angeles Freeway 405 infrastructure repair project, a high-stakes project also known as Carmageddon, and the Benicia-Martinez Bridge in Solano County, California.

In 2016 he became involved in the solar industry and met Roman Black through a mutual friend. Solar Gain had entered the California market, and Ken and Roman saw an opportunity to form a partnership and help Solar Gain take on the challenges that come with growth. Ken is a past chair and active board member of the Tahoe Prosperity Center, and when he’s not in Tucson, he spends his time backpacking, skiing, and enjoying his home and family in Lake Tahoe.

Roman Black, Vice President

Roman holds significant experience in commercial solar project development and sales and is committed to serving our clients in the expanding California and Arizona markets with continued excellence in his role as VP of sales and marketing. Roman earned his degree in finance from the University of Arizona and spent several years in Costa Rica expanding his knowledge and skill set in sustainable industries. While in Costa Rica, he served as project manager for the construction of custom homes that integrated LED lighting, rainwater harvesting, blackwater recycling, and solar and wind power.

After returning to the United States, Roman took on responsibility for leading Solar Gain and helmed the company for 8 years as president during periods of tremendous growth. At Solar Gain, he builds the best possible financing options through strong funder relationships and aggressive pursuit of financial benefits and incentives for our clients. Roman is a founding board member of the Southern Arizona Green Chamber of Commerce.

Tim Graunke, Project Development

Tim was born and raised in Tucson, Arizona, and is the oldest of five siblings. He went to Salpointe High School and graduated from the University of Arizona in 2007 with a bachelor of economics. In 2008, Tim moved to Honolulu and started a career in solar. Early experience as a project and construction manager led to a strong understanding of what it takes to complete projects on schedule and within budget. He soon became lead commercial project manager for one of Hawaii’s top companies in 2011. Later, he returned to Tucson and started working with Solar Gain in 2015 developing projects pre- and post-contract execution.

Contact Our Team

Our team of highly-skilled professionals is dedicated to delivering top-notch solar solutions for homeowners and businesses across Arizona and California. We bring decades of experience and a diverse range of skills to the table to offer top-notch solar solutions to our customers. To learn more or discuss a project, contact Solar Gain today.

Sol Hassler, Lead Commercial Designer

Sol has 8 years of solar installation and design experience. He holds an associate’s degree and is NABCEP-certified in solar electrical installation. Sol has made Tucson his home for the last 10 years and has a deep fascination with sustainable design. He always has several active projects outside of work, the subject matter of which vary greatly.

Will Lawton, Field Service Coordinator

Born and raised in Tucson, Arizona, Will understands the importance of conserving natural resources. Will majored in natural resources conservation and management at the University of Arizona after it became clear that his work would focus on conservation. Upon graduating, he came across the opportunity to work for a solar company, which was a great way to get into conserving precious natural resources while also being a part of an expanding effort to develop and produce renewable energy.

John Reusche, Commerical Sales

John, a licensed general contractor, specializes in commercial steel buildings, solar arrays and medical tenant improvements. A graduate of U.C. Berkeley, John is passionate about Solar Gain and its goals of creating a sustainable cleaner environment for future generations. A firm believer in giving back to his local community, John has served as Past President of Stockton Rotary, the Stockton Asparagus Festival and the Engineers Club of Stockton. John is an avid outdoors man and loves working with youth and has been the Director of the Rotary Youth Leadership Awards camp, held annually for more than 20 years. John is the dedicated father of two college students and loves taking trips with his wife, Sherri.

Ricardo Silva, Senior Project Manager

Ricardo was born in Sonora, Mexico and graduated from Northern Arizona University in 2009 with a Bachelor in Mechanical Engineering. He has been involved in the construction industry since 2006, working as an intern for the Shaw Group and later as a cost engineer for Southern Copper Mining. He joined the solar construction industry during 2012 and since then has been rapidly gaining hands-on experience on all aspects and stages of residential and commercial solar projects. In the winter you’ll find him snowboarding in the mountains.

Robert Neifert, Commercial Sales

Robert joined Solar Gain in 2016, bringing with him a deep knowledge of energy efficiency and solar system design and development practices. With over 10 years of experience in the solar industry, he leads commercial sales for Arizona, helping customers get the most from their renewable energy systems. He is also involved with local and state energy policy to support the effort to transition to a clean energy society. In his spare time, Robert loves chasing after his two young children and introducing them to the great outdoors.

Robert Rocha, Commercial Sales

Rob recently joined Solar Gain with an impressive background. With an associates degree in Electronics Technology, Rob’s early career experience started in the arena of repair and maintenance of high speed robotics and optical storage devices with Eastman Kodak.

Over the past 12 years, Rob re-focused his attention on the solar industry and has gained extensive experience while selling hundreds of solar systems in the Northern California region.