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Stefan Streckfus – Sustainable Renewable Energy Storage

Through his work with Renewell Energy, Stefan Streckfus transforms oil and gas liabilities into renewable energy assets by installing gravity energy storage in inactive oil and gas wells.


Stefan Streckfus

Stefan Streckfus

Renewell Energy

Streckfus, co-founder and chief technology officer of Renewell Energy, is designing and developing the company's first to-scale prototype and creating the ideal team to build out this concept.

In the News

2023 Oil & Gas Cleantech Challenge Announces Chosen Companies, Colorado Cleantech Industries Association

Sept. 18, 2023

Eight Cutting-Edge Clean Tech Startups Demonstrate Promising Success, U.S. Department of Energy Office of Technology Transitions

July 25, 2023

Idle Oil Wells' Next Act? Becoming Batteries for Renewable Energy, Bloomberg

May 5, 2023

Critical Need

Renewell Energy solves two problems with a single technology:

  1. Renewable energy, while low-cost and sustainable, is intermittent and non-dispatchable. Humans need massive amounts of energy storage to shift nature's supply curve (times when wind blows and/or the sun shines) to demand.
  2. North America is home to millions of inactive oil and gas wells, many of which leak methane. Additionally, estimated remediation costs average $76,000 per well in the United States.

Potential Impact

To address this challenge, Renewell Energy converts inactive oil and gas wells into renewable energy storage.

Innovation and Advantages

This solution reduces the cost and carbon footprint of future energy storage needs by:

  • Using funding earmarked for well remediation
  • Sealing wells during installation to cease methane emissions and other environmental impacts.





  • Grid-scale energy storage
  • Oil and gas well remediation

Potential Markets

  • Oil well owners
  • Utilities
  • Energy storage aggregators

Looking For

  • Industry mentors
  • Funding
  • Strategic partnerships
  • Customer identification
  • Subject matter experts