Heather O'Neill is President and CEO of Advanced Energy United. Prior to adding her role as CEO, Heather served as President for the organization, having previously served as Senior Vice President, Strategic Partnerships, responsible for deepening and broadening Advanced Energy United's relationships with funders and foundations, as well as building partnerships with allied organizations that advance industry growth. 

Heather has spent her career helping build and grow mission-driven organizations. Before joining Advanced Energy United, Heather established and led the clean energy and environment portfolio at the Robertson Foundation, a $1 billion family philanthropy. Previously, she was Director, Public Affairs, for Danco Laboratories LLC, a start-up women's health pharmaceutical company.  

In addition to her work with Advanced Energy United, Heather sits on the board of directors for Climate Action Reserve. 

Amy Heart is Senior Vice President of Public Policy with Sunrun. Sunrun is the nation’s leading provider of residential solar and battery solutions. Amy leads Sunrun’s policy team, working to expand access to home energy solutions like solar and batteries, and leverage these benefits to create an affordable and flexible grid for all. Prior to joining Sunrun's policy team in 2014, Amy worked to deploy customer-centered solar solutions with municipalities and non-profit organizations. Amy Heart received her law degree from Marquette University Law School.

Erika Diamond leads EnergyHub’s customer solutions strategy, serving as the executive champion for both utility clients and end-user customers. She oversees a cross-functional team spanning sales, marketing, program delivery, customer engagement, and market development—all with the goal of ensuring the voice of the customer is central to EnergyHub’s product and business strategy.

Since joining EnergyHub in 2015, Erika has played a key role in scaling the company’s client relationships and service delivery. She brings more than 15 years of experience at the intersection of energy and technology, including executive roles at Recyclebank as SVP of Corporate Development and at ThinkEco as VP of Business Development. Erika is an active industry leader, currently serving on the board of Advanced Energy United. She was previously Vice Chair of the Advanced Energy Management Alliance (AEMA) and Co-Chair of the Women in Demand Management group within the Peak Load Management Alliance (PLMA).

Erika holds a BA in Environmental Studies from Vassar College, a Master of Environmental Science from the Yale School of Forestry and Environmental Studies, and an MBA from Harvard Business School.

Caryl Auslander’s tenacity and involvement have allowed her to draw on decades of experience at the local, state, and federal levels for a variety of clients. Her first-in, last-out approach means that clients will never be the last to know. Caryl is sought after for her even-handed, no-nonsense approach that puts relationships in motion to benefit client outcomes.

Caryl specializes in large-scale, high-profile coalition work on behalf of her clients’ priorities from bias crimes to antisemitism, to pre-K pilot and expansion, and an age increase to purchase cigarettes. From small non-profits to Fortune 500 companies, her clients are always at the forefront of each legislative session’s top policy issues. She has successfully lobbied for hundreds of millions of dollars in the Indiana state budget, giving her clients and employers huge wins, year after year.