Keystone Foods sought to develop techniques to reduce carbon emissions by using the resources already available through the transport operations. McDonald’s UK’s used cooking oil (UCO) was identified as a way to reuse an existing waste stream while lowering carbon emissions during the delivery process.
Since 2008, Keystone has collected UCO from McDonald’s UK restaurants, converted the oil into biodiesel and subsequently used it to power the Keystone fleet. The process for collecting and transporting the UCO is fully integrated into Keystone’s standard delivery process, utilizing empty vehicle space, and eliminating the previous requirement for a third-party collection service. This closed-loop, reverse logistics solution has been fully implemented across the McDonald’s UK restaurant network since July 2010, enabling Keystone and McDonald’s to significantly reduce their environmental impact.
During 2011, Keystone collected 3.6 million liters of UCO from McDonald’s UK restaurants, and it is estimated that integrating the collection of the UCO into the delivery process has saved an estimated 1,333 tons CO2 equivalent. The biodiesel produced from the UCO now powers around 60 percent of the Keystone fleet, covering more than 118,000 deliveries or nine million truck kilometers per year. By using biodiesel, as opposed to mineral diesel, Keystone also saved 3,742 tons of CO2 emissions in 2010. In 2012, Keystone expects to collect around 4.8 million liters of UCO that will be converted into 4.2 million liters of biodiesel.