About Us


New Columbia Solar was founded in 2016 to serve the growing demand for clean energy in Washington, DC. After developing, building, and financing solar projects all over the world, the founders of our company came together to transform how the District of Columbia – one of the most visible, iconic, and influential cities in the world – is powered. New Columbia Solar is on a mission to make solar power a reality for our entire community.

Unlike many solar companies, New Columbia Solar finances, designs, installs, and maintains solar energy systems, which makes us a partner to our customers for the lifetime of our installations. We take pride in the clean energy community that we’ve built in the District and look forward to finding new ways of investing in our network of customers as it continues to grow.


Mike Healy
Co-Founder & CEO

As the Co-Founder and Chief Executive Officer of New Columbia Solar, Mike Healy has garnered a laudable reputation as a visionary entrepreneur and leader in the clean energy industry. Mike has been instrumental in developing business growth strategies from start-up level to maturity and has leveraged his position as a business leader and effective coalition builder to grow and improve the solar industry.

While leading New Columbia Solar, Mike serves in executive and advisory positions with the Chesapeake Solar and Storage Association (CHESSA), ConnectDER Inc., Renewables Forward, the Virginia Advanced Energy Industries Coalition, and was a founding member of Nextility, Inc.

Mike has a proven track record of developing a long-term strategy, implementing the tactics to maintain and execute that strategy, and delivering results. He has been an active advocate of renewable energy and clean power in environmental policies, which includes leading the advocacy efforts for the Clean Energy DC Act 2018 passed by the DC City Council to implement a 100% renewable energy target by 2032 and mandates zero-emissions public transportation by 2045. Mike hopes to see the District meet its goal of 100% renewable energy by 2032 through his efforts at New Columbia Solar.

Show Bio

Marco McClees
General Counsel

Marco joined NCS in late 2020 as the company’s General Counsel, where he manages and oversees the legal functions of the company. Marco has over a decade of experience in the renewable energy sector representing both developers and financing parties on projects across the United States and internationally.

Prior to New Columbia Solar, Mr. McClees worked at Millbank and SunEdison, and more recently helped to support and build Ygrene Energy Fund’s national presence in energy efficiency upgrades and PACE financing.

Show Bio

Sam Walker
VP of Finance

Sam joined NCS in 2017 and oversees NCS’s Project Finance, Accounting, M&A, and Asset Management divisions. Sam has raised over $150M of project financing for NCS and led the company’s transition to a fully integrated asset owner and operator.

Prior to NCS, Sam worked at Terraform Power where he focused on structuring debt and equity investments for portfolios of distributed generation solar projects. Earlier in his career, Sam was an investment analyst at Guggenheim Partners. Sam holds a BA from Wesleyan University in Environmental and American Studies.

Show Bio

Shane Lebow
VP of Development

As Vice President of Development, Shane manages all business development, regulatory, engineering and project management activities for NCS’s development portfolio.

Prior to joining New Columbia Solar, Shane began his career working at SunEdison structuring tax equity financing, and later co-founded a private equity firm that deployed over $120M in distributed generation solar assets in Massachusetts. Shane graduated from Stanford University with a Earth Systems Master of Science (’15) and Bachelor of Science in Earth Systems (’14).

Show Bio

Nicole Marandino

Nicole Marandino is the Chief Operating Officer (COO) of New Columbia Solar where she manages the company’s culture, technology, and construction functions. 

Prior to New Columbia Solar, she worked in government affairs and market development with SunEdison, founded 3 companies, and financed over 30 MW of solar projects across the United States.

Show Bio

Solar Development +

Anthony Petruzzo
Director of Sales

Chris Amoss
Director of Project Management

Jorge Consuegra
Director of Special Projects

Josh Zerbarini
Director of Engineering

Leighanna Frantz
Sales Operations Manager

Bill Fitzgerald
Solar Development Manager

Steve Canale
Business Development Manager

Business Development Representative

Patricio Alvarez
PV Design Engineering Manager

Porter Ryan
Solar Project Engineer

Dennis Mason
Senior Project Manager

Paige Ober
Project Manager

Kassandra Reyes-Liste
Project Manager

Paige Pendleton
Project Manager

Emma Lutz
Project Manager

Alex Huber
Associate Project Manager

Sam Petersen
Associate Project Manager

Erin Lee
Regulatory Specialist

Finance & Business Operations +

Erin Larsen
Director of Asset Management

Maulik Patel
Director of Technology

Paul Coakley
Accounting Manager

Caitlin Carnes, CFA
Finance Manager

Richa Shah, CFA
Senior Associate, Project Finance

Guy Logan
Project Finance Associate

Construction & Project Operations +

Mason Holmes
Director of Construction

Sammy Valenzuela
Senior Manager of Construction

Dave Johnson
Safety Manager

Kaly Moore
Construction Manager

Ryan Lackey
Construction Manager

Nico Rios
O&M Manager

Matthew Eshleman
Operations Engineer

Peter Lowenthall
O&M Technician

Abel Kebede
O&M Technician

Crew Team

Crew team photo edited