Accelerating investment into clean energy
The nationwide transition to clean energy requires a significant increase in capital to fund new projects. Reunion works with leading US corporations to invest in clean energy through the purchase of tax credits. Our compliance software also ensures that clean energy companies comply with tax credit rules, including prevailing wage requirements.
Get Started
The foundation for Reunion was laid in 2008, when co-founders Billy Lee and Andy Moon first started working together.
They pioneered early solar financing structures with tax equity and private equity investors, leading some of the first solar transactions with institutions such as US Bank, JP Morgan, Wells Fargo, and Bank of America.
While the clean energy industry has grown exponentially since then, the complexity of financing has always been a bottleneck to innovation and growth. We founded Reunion to direct a wider pool of investors towards clean energy through a faster and more efficient investment process.
Today, Reunion is the leading platform for clean energy tax credits and compliance, having led over $8 billion in transactions since 2024. We work with dozens of the largest companies in the US, and have led multiple complex deals over $1 billion in volume.
What sets us apart is our rigorous Reunion Transaction Process (RTP). We are deeply involved in every step of the tax credit transaction process, from securing tailored credits and negotiating contracts, to digging deep into due diligence and meeting compliance requirements.
$8B+
Tax credits transferred since 2024
100+
Transactions closed
>95%
Deal close rate on signed term sheets
Meet the team
Founders
Andy Moon
Co-Founder and CEO
Andy has worked with leading institutional investors to finance solar energy projects in the US and Europe. While at SunEdison, he structured some of the solar industry's first investments from private equity and bond investors. Andy was previously founder and CEO of SunFarmer, a Y Combinator-backed social enterprise that has completed over 1,500 solar energy installations in Asia. He started his career as a consultant in the energy and sustainability practice at McKinsey and Company. Andy holds a Phi Beta Kappa honors degree from Stanford University, and was named a 2016 Young Global Leader by the World Economic Forum.
Billy Lee
Co-Founder and President
Billy has been a senior executive and entrepreneur in renewable energy project finance and development for nearly 20 years. He was one of the first employees at SunEdison, overseeing global project finance and tax equity for five years. He also founded and led Bright Plain Renewable Energy, a financing and development platform and joint venture partner with D. E. Shaw Renewable Investments. Immediately prior to launching Reunion, he was EVP at Source Global, PBC, a renewable water company. Billy holds an AB from Harvard College and an MBA from Harvard Business School. He lives in San Francisco with his wife and three children.
Growth
Alessio De Falcis
Head of Commercial Strategy
Finance and strategy leader with nearly a decade of experience in the clean energy space. Most recently, Director at GoodLeap. Previously, Series B to IPO at Sunnova. Chicago Booth MBA.
Denis Cook
Director, Business Development & Research
Entrepreneur with 15-year background in technology, finance, and environmental consulting. Former co-founder of machine vision focused technology company. Former VP at J.P. Morgan.
Mahon Walsh
Senior Associate, Sales and Marketing
Energy-sector researcher and communicator, experienced in clean energy procurement and federal incentive application from his time at Guidehouse. Holds a B.S. in Environmental Engineering Science from UC Berkeley.
Nathan Oalican
Chief of Staff
Problem solver with expertise in climate tech and energy finance. Previously led Carbon removal supply strategy at Carbon Direct. Spent several years at McKinsey & Company, studied energy systems at Harvard.
Nishant Mani
GTM Advisor
Climate investor, board member, and GTM executive leader. Held several C-level operator roles across Seed to Series C startups including Yext and Dashlane, after running online advertising for Capital One until 2010.
Sam Padreddii
Director of Marketing
Marketing and communications leader with 9 years of experience building early and growth-stage climate and clean-energy startups. Previously led marketing efforts for the expansion of emerging market clean energy access, grid-edge technologies, and solar technologies, including PV and concentrating solar thermal.
Origination and Execution
Abigail Anderson
Associate, Transactions and Finance
Former manager on the Capital Markets team at a residential solar developer, specializing in deal origination for transfer opportunities. Brings prior Big Four project finance experience and a strong background in financial analysis and transaction structuring. Focused on optimizing deal structures and leveraging data-driven insights to improve deal flow.
Connie Chern, CPA
Head of Transactions and Finance
Two decades and $3B of transaction experience with tax credits and renewable energy projects. Former CPA at Novogradac, project/structured finance director at SolarCity/Tesla/Silicon Ranch, managing director at NextPower Capital, and founder/CFO at Orka Finance.
Connor Danik
Manager, Transactions & Finance
Previously a manager in PwC's Deals Valuation practice specializing in the power, utilities and renewables sectors. Focused on financial reporting and tax valuation engagements as well as supporting audit reviews.
Katherine Westcott
Associate, Transactions and Finance
Formerly with Nexamp working on distributed solar and storage commercial analytics and project development. Data junkie with an M.S. Analytics from American University and B.S. Environmental Science, Quantitative Energy Systems from UNC Chapel Hill.
Kevan Christensen
Director, Transactions & Finance
Renewable energy professional with extensive experience closing complex debt, tax equity and tax credit transfer deals for over 1GW of clean energy projects. Former legal counsel at Apex Clean Energy and project finance attorney at Norton Rose Fulbright.
Kevin Carder
Manager, Transactions and Finance
Dedicated clean energy finance professional specializing in tax credit transactions that harmonize client financial directives with community impact. Experience includes the deployment of $500M+ of tax equity and transfer capital into solar and battery storage investments and extensive deal structuring expertise gained as a manager at a national tax credit syndicator.
Compliance and Technology
Alex Melehy
Head of Product & Engineering
Previously founded and sold a legal-tech company to a PE-backed legal practice management platform. Product leader and engineer by training.
Alex Vertin
Senior Software Engineer
Software engineer with 10 years of industry experience. Previously a founding engineer at a carbon market startup. Passionate about the intersection of climate and technology.
Archisha Majee
Software Engineer
Formerly with Cisco working on various research and incubation projects for the Customer Experience group. Full stack software engineer with a BS in Computer Science from University of Illinois - Urbana-Champaign.
Caroline Nevada
Associate Director of Strategy, Compliance Technology
Renewables finance professional with 7 years of investment experience (valuation, debt, & tax equity) with infrastructure assets including solar, offshore & onshore wind, energy efficiency, and battery storage. Former valuation manager at Orsted and board member of Women in Cleantech and Sustainability.
Coryle Roberts
Manager, Strategic Initiatives
Clean energy finance professional specializing in FEOC and other tax credit regulatory compliance. Former transactional tax insurance advisor supporting ITC/PTC structures and IRS-related risk mitigation. Focused on translating complex regulatory guidance into practical, audit-ready processes for developers, manufacturers, and investors.
Danny Robinson
Lead Software Engineer
Full stack engineer with 12 years of software delivery experience. Previously scaled technical teams at rapidly growing companies in the energy trading analytics and fintech industry.
Jace Simons
Junior Software Engineer
Full stack engineer with 5 years of experience at both startups and mature companies simultaneously with school. Recent graduate with B.S. in Computer Science from University of Colorado, Boulder.
Jennie Stirling
Senior Customer Success Manager
Customer Success professional with over seven years of experience managing key accounts in complex B2B environments. Committed to enhancing the customer through strategic guidance, data driven decisions and a deep understanding of their business needs.
Max Landa
Business Development Manager, Compliance
Renewable energy professional with over 5 years of experience driving growth at clean technology startups. Former manager at LevelTen Energy, specializing in power purchase agreements and market intel research.
Robby Riley
Senior Software Engineer
Full stack engineer with 9 years of experience building software products in a variety of domains. Previously founded an outdoor sports technology company and a consulting business for early stage SaaS startups.
Vanessa Fontana
Senior Customer Success Manager
Over 10 years of experience as a Customer Success professional with a focus on helping large organizations achieve their sustainability, ESG, and compliance goals. Previously with Measurabl, supporting clients on data-driven strategies for energy efficiency, climate risk mitigation, environmental reporting, and net-zero target setting.
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