Marvel Power Group

Marvel Power Group is a woman-owned, ESG-focused transaction broker and commercial advisor. We offer services to clients in power, gas, water, industrial and transportation sectors.


Energy Transition is our core and only focus. We structure complex, meaningfully large renewable natural gas (RNG) and power transactions for companies committed to environmentally-sound, commercially-ready solutions.

Our principals are experienced practitioners who have run companies, originated and closed complex deals, advocated and negotiated favorable policy and advanced technological innovation. With over three decades of combined experience in renewables specifically, our customers chose us, every time, for our unparalleled industry knowledge, market acumen, professionalism and commitment to their prosperity.

in closed RNG transactions since 2021
in cumulative Renewable Energy and RNG closings
of collective industry experience
in capital placed for client ventures
independent and unbiased advice


Our clients are at the forefront of energy transition and innovation. Their mandate is complex: balance project needs with customer demands, lofty investment targets and development complexities. Layer on market volatility and regulatory risk and the scope becomes less manageable in-house. This is where Marvel comes in. We understand the task and bring deep expertise to addressing these challenges.

Transaction Support

  • Renewable Natural Gas offtakes
  • RIN, RTC, REC and LCFS brokerage
  • Renewable PPA origination
  • Contract negotiations and structuring

Enterprise Strategy

  • Market advisory
  • Risk management
  • Capital sourcing or deployment
  • Resource optimization

Market Development

  • New venture strategy
  • Go-to-market architecture
  • M&A support
  • Marketing and partnerships

Our clients are time constrained and under-resourced. Agendas shift, budgets move and priorities change. We understand. We are agile, creative and immediately responsive to your various working styles, governance requirements and evolving needs.


Meet Katherine
Katherine Ryzhaya
Founder and CEO
A serial entrepreneur and industry expert, Katherine has nearly 20 years of experience in running infrastructure businesses and closing complex energy transactions. As the sole founder of Marvel, in 2019, Katherine saw an opportunity to run a business her way — leading with high integrity, unmatched focus on service quality and utmost commitment to driving customers’ yields.
Career History
  • CEO, Renovar, Shell Digital Ventures
  • CCO, Lightsource bp
  • Co-Founder and CCO, AMS (acquired by Fluence, NASDAQ: FLNC)
  • VP and Director, Evolution Markets
  • Principal, Pacific Gas and Electric Company
  • BS, Finance, University of San Francisco
  • MBA, Finance, Duke University
Meet Sam
Sam Peelle
Senior Director and Partner
Sam has over 10 years of experience in renewable power and gas markets, with expertise in renewable fuels, demand side management, energy procurement, energy storage and analytics. Throughout his career, Sam has worked on all sides of the transaction, in each case leading with integrity, customer service and a keen focus on delivering results that positively impact the client’s bottom line and environmental footprint.
Career History
  • Director, AMS (acquired by Fluence, NASDAQ: FLNC)
  • Manager, EnerNOC (acquired by Enel, BIT: ENEL)
  • Regional Manager, United Technologies Corporation
  • BA, Political Science, University of Pennsylvania
  • MBA, Finance, Babson College