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Billy Lee

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 Lee
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September 5, 2025
An overview of trends in tax credit transfers for sellers - September 2025

A look at market trends and insights, along with some highlights from recent Reunion transactions.

Market Intel & Insights

Billy Lee
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August 6, 2025
An overview of trends in clean energy tax credit transfers - August 2025

A look at market trends and insights, along with some highlights from recent Reunion transactions.

Market Intel & Insights

Billy Lee
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September 27, 2024
Clean Energy Tax Credit Trends: Insights For Buyers & Sellers

Explore the surge in clean energy tax credit pricing in 2024, ITC & PTC trends, and how corporate buyers can secure better 2025 deals by planning early.

Market Intel & Insights

Billy Lee
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September 20, 2024
Webinar Recording: Navigating Tax Credit Insurance with CAC Specialty

We are excited to welcome Jordan Tamchin, Executive Vice President and leader of the Tax Insurance Practice at CAC Specialty, to our Q3 buyer office hours on Thursday, September 5th at 2:00pm ET.

Due Diligence & Risk Management

Billy Lee
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August 12, 2024
Reunion and Summit Ridge Energy host webinar on Tuesday, August 20th for tax credit sellers

Phil Schapiro, VP of Project Finance at Summit Ridge Energy, joins our Q3 seller office hours on Tuesday, August 20th at 2:00pm ET.

General Educational Resources

Billy Lee
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May 17, 2024
Prevailing Wage & Apprenticeship Requirements For Corporate Tax Team

Ensure compliance with prevailing wage and apprenticeship requirements final regulations for energy tax credits. Mitigate risks & avoid penalties.

Due Diligence & Risk Management

Billy Lee
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April 16, 2024
Reunion's Quarterly Seller "Office Hours" for Clean Energy Developers and Manufacturers

Reunion is excited to host quarterly webinars for clean energy developers who would like to learn more about our marketplace and get a pulse on the overall transferability market.

Market Intel & Insights

Billy Lee
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September 27, 2023
Analyzing the Returns of Tax Credit Transfer Transactions

When evaluating the economic benefits of a transferable tax credit purchase, buyers should consider how transaction timing can positively impact IRR and ROI.

Terms, Mechanics & Best Practices

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Reunion Accelerates Investment Into Clean Energy

Reunion’s team has been at the forefront of clean energy financing for the last twenty years. We help CFOs and corporate tax teams purchase clean energy tax credits through a detailed and comprehensive transaction process.

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