Greg Lavigne

Law Firm Partner

Partner, Energy Transportation and Infrastructure at Sidley Austin

Deals Attributed

$4.50B

Deal Value

13.5

GW Capacity

Positions Held

Career Timeline

Partner, Energy Transportation and Infrastructure

Sidley Austin

Dec 2023 — Present

Partner

Allen & Overy

Jan 2020 — Dec 2023

Attributed Deals(3 deals)

Deals attributed based on Greg Lavigne's role at the firm during the transaction.

2026(2 deals)

Mar 2026CounselTAKKION — integrated renewable energy services platform (wind O&M, construction, logistics, transportation)M&AOther

Jan 2026CounselCogentrix Energy — 10 natural gas generation facilities, 5,500 MW CCGT and CT fleetM&ANatural Gas$4.00B5,500 MW

2024(1 deal)

Jan 2024CounselTriple Oak Power — 8 GW onshore wind development platform focused on central and western US marketsM&AWind$500M8,000 MW

How deal attribution works: Deals are attributed to individuals based on their role at a firm during the transaction period. C-suite executives and senior partners/MDs are attributed deals where their firm was involved as a principal, counsel, advisor, or lender. This is an inference — not all attributed individuals necessarily worked directly on every deal.