Sebastien Gagnon

Managing Director, Head of Energy Transition Private Equity, Goldman Sachs Asset Management

📍 New York, New York, United States🔄 Updated September 2026💼 9 investments📅 14 years investing🗓 Last invested Jan 2023
VC🌍 United States
9
Total investments
1
Early stage
1
Mid stage
1
Late stage
14y
Years active

Portfolio

6 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Board Member
Jan 2023
GridStor uses best-in-class project development standards to build safe facilities and operate them responsibly. Our projects integrate with existing infrastructure and deploy at the pace needed to rapidly expand domestic energy supply beyond fuel-based generation to ready-to-tap resources like wind and solar power. We seek to be a good partner to neighboring communities and to contribute positively to the local environment, economy, and overall quality of life. We’re committed to supporting a stable American power grid with clean battery storage. As our economy turns to electricity to power vehicles, commerce, and public services, we need to put all American-made energy sources to good use. By storing electricity whenever it is generated and pushing it back onto the grid when it is most needed, GridStor’s battery energy storage facilities meet the growing demands on our nation’s power infrastructure.
Board Observer
Aug 2021
Redwood Materials is building the U.S. stockpile of critical materials and deploying large-scale energy storage. Founded by JB Straubel, the company produces lithium, nickel, cobalt, copper, and cathode active material at scale in the U.S., manufactures key components for advanced batteries, and deploys energy storage systems that power data centers and the nation’s grid. Redwood is expanding domestic capacity for next-generation energy storage and strengthening U.S. energy dominance.
Board Member
Jul 2019
Northvolt was founded to enable the transition to a decarbonized future by establishing a sustainable battery industry. To do this, we’re pioneering a new approach to battery manufacturing rooted in a commitment to fossil-free energy, sustainable sourcing of raw materials and recycling.   Building the world’s greenest battery is no easy task, but with passionate problem-solvers from around the world, we strive to set a new benchmark for sustainability in the battery industry. Want to join us in building a cleaner world? Find your challenge at northvolt.com/career 
Board Member
Feb 2018
Lucid currently manages the largest private gas gathering and processing business in the Permian Basin and is focused on continuing to build out its Northern Delaware Basin assets, which consist of 2,150 miles of gathering pipelines, 1.2 Bcf/d of processing capacity, and 33 compressor stations. At Lucid, we understand how important service is to our customers. We hold fast to our vision and creativity. We believe in communicating clearly so that every deal is easily understood. We are perceptive and in the moment with our customers and work hard to develop unconventional solutions that yield long-term, successful partnerships. Our customers trust us because there are no surprises. At Lucid, we are Vision At Work.
late stageOil and Gas
Board Member
Jan 2016
PSS Companies [PSS, Pipeline Supply & Service] is the leading specialty distributor of consumable products and services to the pipeline construction, maintenance, and repair industry with headquarters in Houston, Texas and 22 branches located in 14 states throughout the United States. PSS carries over 26,000 SKU’s in stock with the largest inventory in the industry to ensure same day delivery even in remote shale build out areas. Services include logistics management; on-site inventory and job planning; equipment rental, repair, and calibration; specialty fabrication and sourcing; and field service technicians for pipe beveling and cutting. PSS operates under the flagship brand of Pipeline Supply & Service but proudly maintains local brands that include Wasatch, North State, Allied, Pipeline Specialties, R&D, and 24/7. PSS has recently merged with Industrial Air Tool to expand our product and servicing offering to the upstream and downstream energy markets.
Board Observer
Jul 2012
AspenTech SSE provides end-to-end geoscience and modeling solutions for optimization across subsurface engineering and operations. Empower decision makers to reduce uncertainty, improve confidence, minimize risk and support responsible asset management.
Experience · 13 entries
All (13)
Investments (9)
Board (9)
2023
Board Member
Jan 2023
GridStor uses best-in-class project development standards to build safe facilities and operate them responsibly. Our projects integrate with existing infrastructure and deploy at the pace needed to rapidly expand domestic energy supply beyond fuel-based generation to ready-to-tap resources like wind and solar power. We seek to be a good partner to neighboring communities and to contribute positively to the local environment, economy, and overall quality of life. We’re committed to supporting a stable American power grid with clean battery storage. As our economy turns to electricity to power vehicles, commerce, and public services, we need to put all American-made energy sources to good use. By storing electricity whenever it is generated and pushing it back onto the grid when it is most needed, GridStor’s battery energy storage facilities meet the growing demands on our nation’s power infrastructure.
2022
Board Member
Jan 2022
Hydrostor is a leading developer and operator of long-duration energy storage systems. Hydrostor leverages a proven technology solution for delivering long-duration energy storage (eight hours or more) to power grids around the world. Hydrostor’s technology uses compressed air and water to store energy. This patented technology allows grid operators to draw on clean energy, even when there is no sun to fuel solar panels and no wind to generate energy from turbines. Hydrostor has a successful utility scale facility commercially contracted to the Independent Electricity System Operator (IESO) located in Goderich, Ontario, and two advanced projects under development in Kern County, California and New South Wales, Australia. Hydrostor has an extensive early-stage pipeline of projects in North America, Australia and Europe. Founded in 2010 and with headquarters in Toronto, Canada and offices in Melbourne, Australia and Sacramento, USA, Hydrostor is backed by Goldman Sachs Asset Management, the Canada Pension Plan Investment Board (CPPIB) and other forward-thinking institutional investors, providing financial security to commit to top-tier energy projects.
2021
Board Observer
Aug 2021
Redwood Materials is building the U.S. stockpile of critical materials and deploying large-scale energy storage. Founded by JB Straubel, the company produces lithium, nickel, cobalt, copper, and cathode active material at scale in the U.S., manufactures key components for advanced batteries, and deploys energy storage systems that power data centers and the nation’s grid. Redwood is expanding domestic capacity for next-generation energy storage and strengthening U.S. energy dominance.
2019
Board Member
Jul 2019
Northvolt was founded to enable the transition to a decarbonized future by establishing a sustainable battery industry. To do this, we’re pioneering a new approach to battery manufacturing rooted in a commitment to fossil-free energy, sustainable sourcing of raw materials and recycling.   Building the world’s greenest battery is no easy task, but with passionate problem-solvers from around the world, we strive to set a new benchmark for sustainability in the battery industry. Want to join us in building a cleaner world? Find your challenge at northvolt.com/career 
2018
Board Member
Feb 2018
Lucid currently manages the largest private gas gathering and processing business in the Permian Basin and is focused on continuing to build out its Northern Delaware Basin assets, which consist of 2,150 miles of gathering pipelines, 1.2 Bcf/d of processing capacity, and 33 compressor stations. At Lucid, we understand how important service is to our customers. We hold fast to our vision and creativity. We believe in communicating clearly so that every deal is easily understood. We are perceptive and in the moment with our customers and work hard to develop unconventional solutions that yield long-term, successful partnerships. Our customers trust us because there are no surprises. At Lucid, we are Vision At Work.
late stageOil and Gas
Show all 13 entries ↓
Investment activity
2012–2023 · 9 investments
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