Marvel Power Group

Marvel Power Group is a boutique, climate-focused transaction broker and commercial advisor. We provide expert services to clients in transportation, power and gas operations, waste management, industrial processing, trading and logistics.



Energy Transition is our core and only focus. We structure complex, meaningfully large renewable natural gas (RNG) and renewable thermal credit (RTC) transactions for companies committed to environmentally-sound, real world 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
North American utility clients
independent and unbiased advice


Our clients are keenly focused on reliable, existing low-carbon solutions. Their mandates are complex: balance project needs with customer demands, regulatory frameworks, lofty investment targets and developmental 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.

Offtake Brokerage

  • Renewable natural gas (RNG) offtakes
  • RIN, RTC, REC, ISCC & LCFS placement
  • Renewable PPA origination
  • Contract negotiations and structuring

Commercial Advisory

  • Market intel for deal planning
  • Risk management
  • Revenue strategy
  • Regulatory surveillance

Investment Diligence

  • M&A diligence support
  • Business model validation
  • Assumption stress-testing
  • Marketing and partnership structuring

To date, Marvel has represented nearly 80% of all participants in the North American RNG term market. From small developers to giant utilities – all come to Marvel for unrivaled brokerage and advisory expertise.


Meet Katherine
Katherine Ryzhaya
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
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 impact.
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

Why Work With Us

Marvel is a premier broker of term offtake transactions in the biofuels space.

We support the full breadth of our clients’ commercial agendas related to buying and selling renewable fuels and transacting physical and financial environmental products.

Working with Marvel gives our clients a distinct financial and reputational advantage. Through the years, Marvel has proven it can achieve a better combination of economics and terms than clients can attain themselves.

Our value lies in being able to:

Cast a wide net and access the broadest set of market participants
Drive healthy competitive tension to secure best-in-market deals
Leverage deep experience accumulated through repeat transactions
Know, in real time, who is looking to sell, invest, divest or procure
Leverage our market-maker position to disseminate actionable knowledge
Be available and immediately responsive to our clients

Whether we run a structured, CFO-approved tender process or connect well-fitting counterparties bilaterally, our clients can be assured they locked in the best available in-market deal each and every time.

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