Powering the Transition to a Low-Carbon Future
We help businesses unlock growth through renewable fuels, SAF, Hydrogen, and RNG process and project development
We help businesses unlock growth through renewable fuels, SAF, Hydrogen, and RNG process and project development
At Reliance Sustainable Solutions, we aim to simplify the way you approach low carbon fuels and chemicals.. Our mission is to provide innovative, science-based, and commercially viable low-carbon solutions that empower businesses to achieve their sustainability goals.
At Reliance Sustainable Solutions, we specialize in guiding companies through the complex challenges of the energy transition. Founded by Dr. Parag Shah, a chemical engineer with a PhD and two decades of leadership in low-carbon fuels, we combine technical depth with strategic vision.
Our expertise spans the U.S., Brazil, U.K., and India, where we’ve worked on projects ranging from pilot plants to $50M+ commercial-scale facilities. Whether it’s renewable diesel, SAF, RNG, or first generation biofuels like biodiesel and bio ethanol—we bring proven solutions to accelerate your path to net zero.
At Reliance Sustainable Solutions, we believe in

We provide comprehensive process feasibility analysis and FEL 0 and FEL 1 (Front-End Loading) services tailored for low carbon fuels and energy projects, enabling clients to confidently progress from concept to early project definition. Our approach integrates feedstock assessment, technology screening, policy alignment, process configuration, and preliminary mass and energy balances to evaluate technical viability and alignment with project objectives. During FEL 0, we identify and compare potential pathways—such as renewable diesel, SAF, ethanol, or advanced biofuels—assessing key risks, tax credit evaluations, sustainability considerations, and high-level economics. In FEL 1, we refine the selected concept through process simulations, equipment sizing, utility requirements, site considerations, and Class IV/III cost estimates, along with preliminary project execution strategies. This structured methodology ensures early identification of technical and commercial risks, supports informed decision-making, and establishes a robust foundation for advancing low carbon energy projects toward successful development and investment.
Ability to have feedstock flexibility for your project is critical for business. Adding pretreatment prior to your RD or SAF process could help convert low value feedstock to on spec fats or oil required for your process. Our long experience and deep expertise in pretreatment of fats and oils using traditional methods or more advanced processes specifically geared for SAF and Renewable Diesel could help you select the right pretreatment process for your project.
With more than two decades on experience scaling up new cutting edge technologies in green fuels and chemicals from lab to pilot, demo and commercial scale we can help you plan your scale up strategy to give you highest chance of success at scale. With our extensive experience in commercial operations of first generation and advanced fuels such as biodiesel, cellulosic ethanol and grain ethanol, we can help you develop innovate solutions for optimizing your process and operation to improve your bottom line by reducing variable cost and increasing process yield.
We offer comprehensive advisory services to help biofuel projects capture value from global carbon and regulatory credit programs, including RINs under the U.S. Renewable Fuel Standard, the California LCFS, the EU’s RED II (RED2), and other emerging carbon markets. We work closely with developers, producers, and investors to navigate complex regulatory landscapes, ensure sustainability compliance, and maximize credit generation and monetization.
We provide comprehensive project development consulting for the biofuels and low-carbon energy industry, supporting clients from early-stage concept through to commercial execution. Our services include feasibility assessments, feedstock and technology selection, techno-economic analysis, regulatory strategy, and financial modeling. We work closely with developers, investors, and technology providers to structure scalable, bankable projects that meet sustainability criteria and market requirements. By combining deep technical expertise with commercial insight and policy awareness, we help clients de-risk investments, optimize project design, and accelerate the deployment of economically viable, low-carbon energy solutions.
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