Steven D’Angelo
Managing Director
Steve is responsible for managing all technology at Tangent Energy Solutions, including the design, development, and support of their flagship Distributed Energy Resource Management System (DERMS), Tangent® AMP. Steve is also responsible for the Network Operations Center and the Integration and Engineering teams.
Prior to Tangent Energy Solutions, Steve worked for Comverge (formerly Enerwise Global Technologies) for ten years. There, he managed a 24/7 Network Operations Center and led a metering and controls integration team serving commercial and industrial customers. His primary responsibilities included administering large utility demand response programs and monitoring and dispatching assets.
Steve has a BS in Business Administration from the University of Delaware.
Tom Hammond
Energy Technology Engineering Manager
Tom is an energy technology engineering manager with expertise in the dispatch and monitoring of generation assets throughout various U.S. energy markets (ISOs/RTOs).
At Tangent Energy Solutions, Tom has been integral in the design and implementation of all metering, communications, and control architecture associated with the remote dispatch of assets via Tangent AMP. His responsibilities include communications design, coordinating installations, and overseeing final system commissioning and testing.
Prior to Tangent Energy Solutions, Tom worked for Schneider Electric in sales development, focusing on the Square D power distribution product line for both residential and commercial customers.
Tom has a BS in Electrical Engineering from Pennsylvania State University.
Stephen Musser
Engineering Manager
Stephen oversees technical sales support and project execution throughout North America, focusing on project engineering for DERs. This includes initial project development and project execution with customers, municipals, utilities, and project investors.
Prior to the acquisition of Tangent Energy Solutions by Caterpillar, Inc., Stephen was a project engineer for natural gas generation and energy storage projects. He was also the technical sales lead for large accounts in Ontario and New England.
Stephen has a BS in Mechanical Engineering from Northeastern University.
Mark Schaefer
Senior Manager of Financial Planning and Analysis
Mark oversees all project financing transactions, including but not limited to power purchase agreement negotiations, contract negotiations, and deal structure analysis. In this capacity, Mark has overseen Tangent Energy Solutions' growth as one of the most respected energy-as-a-service project developers in North America.
Prior to joining Tangent Energy Solutions, Mark was Vice President of Risk Management for Comverge, a leading demand response, advanced metering and grid management solutions company. Mark performed the due diligence for Comverge's fully outsourced pay-for-performance programs with several utilities and the ISO New England, and numerous Power Purchase Agreements with customers.
Mark has a BA in Business Administration from the University of Delaware and an MBA from Villanova University.
Claire Gramlich
Operations Center Manager
Claire manages Tangent AMP's 24/7 Network Operations Center, which monitors more than 7,200 MW of customer load, including over 175 MW of installed distributed energy resources. Her key responsibilities include leading the Operations Center (including DER asset management and asset dispatch), as well as the regulatory and account management teams. She is also integral in steering the design, development, and support of the Tangent AMP system.
Claire has expertise in energy markets, fleet management, and customer and investor support. Prior to Tangent Energy Solutions, Claire worked for PJM Interconnection within their EIS group.
Claire has a BS in Mechanical Engineering from the University of Vermont.
George A. Bivens Jr.
Sales Director Energy Services
George A. Bivens Jr. is National Sales Director, leading the Energy Services sales team in business development of energy asset monetization projects for large industrials, municipalities, and co-ops in regions of high economic value.
With a background spanning Siemens, Schneider Electric, Oracle, SparkCognition, and Aggreko, George brings deep expertise in energy controls, and enterprise energy solutions, with a proven track record of driving growth and leading high-impact teams.