Solar Power

Due Diligence & Technical Services

E3 has reviewed the development, construction, and operation of everything from utility-scale solar projects to large portfolios consisting of commercial and residential solar leases. Our solar team understands what makes a solar project technically viable and financially feasible.

Jim Langel, E3 Consulting
Technology Lead, Jim Langel

Representative Projects


E3 Projects - Mammoth North Solar

Mammoth North Solar project, Indiana

E3 is providing owner’s engineering services to the developers of the Mammoth Solar Projects, to date, which will be one of the country’s largest solar farms, being developed in Indiana. The 13,000-acre Mammoth Solar Project is being developed by a partnership involving Israeli energy company Doral Group (fka Global Energy Generation). The Mammoth Project is divided into three phases: Central, North, and South Mammoth. The Projects are currently in development and preliminary engineering. E3’s solar team is providing the developer with owner’s engineering services during the design and construction of the Mammoth North Project, which is expected to be a 400 MWac PV facility. Collectively, the Mammoth Solar projects will be 1.3 gigawatts.


JLC Infrastructure, Greenskies Portfolio and Pipeline – California, Connecticut, Maine, Massachusetts, New Jersey, and Pennsylvania

E3 provided technical due diligence to JLC Infrastructure to support their acquisition of the Greenskies solar portfolio and development pipeline. Greenskies develops C&I projects ranging from 100 kW to 20+ MW. Approximately 100 MW were expected to come online within 18 months of the acquisition, and the development pipeline included more than 500 MW. E3’s services included an evaluation of the Greenskies development team, financial model validation, meteorological data selection for resource production, schedule evaluation, construction cost estimates, and O&M cost analyses.


AES Distributed Energy – PV+Storage Portfolio, Massachusetts

E3 was the Independent Engineer to support the tax equity investment and debt financing of a portfolio of solar PV plus energy storage projects in Massachusetts. The projects were designed for the Solar Massachusetts Renewable Target (SMART) Program.  The scope for E3 included a comprehensive review and report covering major equipment, technical design review, detailed resource evaluation, battery dispatch model, warranty review, interconnection agreement, engineering, procurement and construction (EPC) agreement, O&M costs, and the financial model.