A Highly Integrated and Sustainable Business Model
What separates Rothsay Biodiesel from other biofuel producers is our highly integrated and sustainable business model. We have an uninterrupted supply of raw materials using the tallow and recycled cooking oils produced at Rothsay's rendering facilities. We use these materials to produce biodiesel – a clean, renewable, low-carbon alternative to petroleum diesel.
By co-locating our biodiesel plant at one of Rothsay's existing operations, we are able to further lower our environmental footprint through more efficient use of resources.
We are also uniquely positioned to enhance the sustainability of our rendering operation by utilizing biodiesel blends in our own commercial truck fleet. We use biodiesel to power our heavy duty commercial trucks at three locations year-round with blends ranging between 5%-100%. By doing this, our fleet runs on biodiesel produced from the very materials they are collecting.
Fueling our own truck fleet with lower-carbon alternatives like biodiesel not only improves our environmental footprint, but also those of our customers. By having Rothsay trucks pick up our customers’ residual products, they are given a unique opportunity to improve the sustainability of their operations as well.
Here's how we are creating a sustainable future...
A Sustainable Product
Produced from materials recycled at our rendering plants, Rothsay’s biodiesel has a very high sustainability score. A 2009 study based on the Natural Resources Canada GHGenius model demonstrated that biodiesel derived from tallow reduces lifecycle greenhouse gas (GHG) by 99% when compared to petroleum diesel.
Our production process also contributes to the sustainability of our product. The energy needed to create our biodiesel is mostly powered by the non-fossil residual by-product produced in our manufacturing process. Overall, the ratio of fuel produced to fossil energy consumed for Rothsay’s biodiesel process is 100:1.
Building a Sustainable Industry
Our commitment goes beyond the production and sales of Rothsay Biodiesel. Darling Ingredients is committed to the development of the renewable fuels industry, opening the first and longest continuous-running BQ-9000 certified plant in the U.S. to recycle animal fats and restaurant grease into premium biodiesel. More recently, Darling partnered with Valero Energy Corporation to create Diamond Green Diesel, the largest production facility in North America to convert feedstocks that include rendered fats and used cooking oils into renewable diesel fuel. Through these new market development innovations, no other company in the world has done more to elevate the value and utilization of tallow and yellow grease, ensuring these products will play a key role in developing a sustainable renewable fuel supply throughout North America.
In 2002, while operating our pilot plant, Rothsay supplied 500,000L of our biodiesel fuelling 122 Montreal Urban Transit buses for a full year. This project was designed to test the use of biodiesel as a source of supply for public transit and asses the cold weather viability.
In 2003, we supplied biodiesel to fuel 12 cruise boats with B100 in the port of Montreal. The project successfully demonstrated the use of B100 in cruise boats.
Partnering to Advance Biofuels
Remaining a technology leader requires a committed effort to research. Rothsay is working with research teams at McGill University and University of Waterloo on advanced biofuel production technologies through the Government of Canada’s NSERC (Natural Sciences and Engineering Research Council of Canada) program. This mutually beneficial relationship ensures that Rothsay is engaged in leading edge technologies and that researchers have access to valuable industry expertise.
Powering our Fleets
Rothsay has been using biodiesel to power our commercial fleet since 2001. In 2009, we expanded the fleet trial to our three largest locations powering our trucks on blends ranging from 5%-100%. The fleet trial demonstrates the viability of biodiesel in select blends in cold weather, as well as all blends in warmer weather. The trial has been invaluable in demonstrating the usability of biodiesel.
Rothsay Biodiesel has shown continual support for research committed to the development of biofuels and bio-based products. We have supplied samples and technical support to researchers, other biofuel producers, entrepreneurs, and government agencies and are proud to continue this.
Rothsay Biodiesel has representation to the two standard-setting bodies that manage the biodiesel specifications in North America. Rothsay is an active voting participant on the CGSB (Canadian General Standards Board), and is represented to the ASTM (American Society for Testing and Materials) through its parent, Darling Ingredients Inc. Such representation allows us to stay current with the diesel and biodiesel standards, and provides forward visibility that enables Rothsay to anticipate future standards and changes in the marketplace.