About EIP

EIP provides clients and partners with > 30 years of experience in energy storage, project development, finance, and grid-edge consulting. Experience includes technical, financial, market, and business know-how gained through founding, developing, operating, and investing in grid-edge companies and assets. EIP has worked with some of the largest players in the utility field, as well as emerging technology companies. In addition to traditional consulting engagements, EIP enters into partnerships with solar,  wind, and hydro developers to co-develop energy storage co-located and hybrid projects. Clients and partners benefit from these complimentary activities, as we are not just market observers, we are market participants.


EIP Partners have broad experience across energy businesses, technologies, & finance.


Our partners and clients benefit from EIP’s real-time project work pursuing opportunities at the energy market’s edge.


EIP delivers on performance-driven milestones within an engagement structure that clearly aligns incentives.

Proven Success

The Numbers Don’t Lie

EIP provides analysis, strategic support, and execution for corporate teams, investors, and new ventures. EIP has strong knowledge in the following areas: all types of energy storage and batteries, solar, distributed energy resources, grid-edge technologies, and renewable energy project development.


Growth expected in Stationary Energy Storage Deployments (MW) in the US from 2020 to 2021, from 1.2 GW to 3.7 GW.

Source: GTM & Woodmac.com

Meet the Team

The principals of EIP have over 30 years of experience in the energy and investment space, having started, financed and operated many companies in the sector.

Edward May

Co-Founder & Managing Partner

Mr. May is a co-founder and Managing Partner at Energy Intelligence Partners (EIP) and has a background in private equity and investment banking. His experience covers numerous sectors of the energy economy, including solar, wind, storage, biomass and biochemicals, as an investor, operator and advisor. Prior to EIP Mr. May was a Principal with US Renewables Group (USRG), a $750 million renewable energy focused private equity firm based in Santa Monica, CA. At USRG he participated in all aspects of sourcing, analyzing, and closing transactions and managing portfolio companies across the renewable energy space. This includes working with dozens of start-up and later stage companies.

Prior to USRG Mr. May was with Lehman Brothers, Inc. in New York City, as one of the original members of the Sports Advisory and Finance Group. Finance experience includes, M&A advisory, equity and debt placement as well as structured and project finance.

Mr. May holds an MBA and a Master of Environmental Management from Duke University and a BA from the University of North Carolina at Chapel Hill.


Ronald DiFelice, Ph.D.

Co-Founder & Managing Partner

Dr. Ron DiFelice is a co-founder and Managing Partner at Energy Intelligence Partners (EIP) and is an active participant and voice in the transition to a low carbon electricity grid. A leader in the field of energy storage, he has over 20 years of experience across all types of energy storage, grid-edge technologies, and markets. He brings a valuable business prospective gained from having worn every hat required to successfully start, fund, operate, and grow a business.

Before launching EIP, Dr. DiFelice was focused on clean technology commercialization and drove two battery companies from white board to profitability. He has led projects across the energy sector spanning distributed energy resources, renewable energy systems, and grid-edge technologies, among others.

For the past 7 years at EIP, he has served as a consultant to renewable energy developers, investors, utilities and Fortune 500 companies, and is currently co-developing over 1 GWh of solar plus storage projects. Dr. DiFelice earned a Ph.D. in Chemistry from Virginia Tech (Phi Lambda Upsilon), an MBA from Kenan‐Flagler at the University of North Carolina at Chapel Hill (Beta Gamma Sigma), and Bachelor and Master of Science degrees from the Rochester Institute of Technology. He is an active writer and speaker on the energy transition, is a member of RTP Capital, an angel investor group that provides seed capital to early-stage companies, and he serves on the Board of Directors for the North Carolina Sustainable Energy Association.


EIP Associations & Memberships

Working With EIP

With a vast understanding of energy storage and US markets, EIP supports project development by leading the following tasks:

Energy storage value stream assessment

Energy storage sizing and operational planning

Solar plus storage ground-up financial and performance modeling

Energy storage vendor/technology evaluation and selection

Solar plus storage PPA development and negotiation

Energy storage utility interconnect process support

Get In Touch

101 N. Columbia St

Ste 200

Chapel Hill, NC 27514