Company Background

Gray's Harbour

Imperium Renewables, Inc. (IRI) was founded in 2004 by John Plaza to commercialize his novel and innovative design for biodiesel refining, with a focus on fuel quality and environmental sustainability. In August, 2007 we opened the nation's largest BQ-9000® certified biodiesel refinery Imperium Grays Harbor in Hoquiam, Washington, which is capable of producing up to 100 million gallons per year.

Today, Imperium Renewables is a national leader in next generation biofuel production. We are driven by a single yet ambitious goal – to fundamentally change the way we fuel our cars, trucks, ships, trains and planes by developing and producing clean, renewable and sustainable alternative fuels, now and into the future.

To meet that goal, the company has developed and continues to develop proprietary technology and processes across the biofuel value chain. We are committed to ensuring that our biofuel is made from the most sustainable and environmentally friendly feedstocks possible, and that our product is of the highest quality in the industry.

Imperium Renewables produces pure, unblended B100 biodiesel refined from a variety of oils; canola grown in the Pacific Northwest and Canada, soy, and many other crops. Our proprietary technology produces a consistently high-quality fuel that exceeds all American Society of Testing and Materials (ASTM) D6751 Standard and the European Standard EN 14214 and can be tailored to any additional standards required by the end user.

Commitment to Social Responsibility


It's not just fuel we're working on. We founded this company with a goal of fundamentally changing how we power our vehicles by creating a fuel that would reduce global warming and our dependence on the dwindling supply of petroleum, while at the same time providing a renewable source of energy for generations to come.

That commitment to sustainability runs through everything we do. We are dedicated to encouraging Social Responsibility within our corporation and within our communities. We strive to make decisions based not only on financial considerations, but also based on the short and long term consequences that our actions have on our world. Toward that end, our sustainability initiatives include membership in the Roundtable for Sustainable Biofuels, (RSB). The Roundtable on Sustainable Biofuels (RSB) is an international initiative coordinated by the Energy Center at EPFL in Lausanne that brings together farmers, companies, non-governmental organizations, experts, governments, and inter-governmental agencies concerned with ensuring the sustainability of biofuels production and processing.

The RSB has developed a third-party certification system for biofuels sustainability standards, encompassing environmental, social and economic principles and criteria through an open, transparent, and multi-stakeholder process. Participation in the RSB is open to any organization working in a field relevant to biofuels sustainability. Learn more about the RSB »