Politics aside, sustainable practices make good sense

Most companies today are taking steps to improve the sustainability of their products and processes in response to both consumer and public pressure and impending regulatory requirements. No matter where you stand on the issue of global climate change, there are good business reasons to reduce energy usage, cut down on waste and look for sustainable components and materials as substitutes for their non-sustainable counterparts. Operations management and supply chain professionals are increasingly involved in leading their respective organizations on the path to more earth-friendly operations.

Sustainability is defined as the capacity to endure. For humans, it is the potential for long-term maintenance of well being, which in turn depends on the well being of the natural world and the responsible use of natural resources (per Wikipedia). For businesses, this means two things: Reduce usage of any and all resources to the minimum necessary, and wherever possible, use resources that are renewable.

On the first point, the hierarchy of waste reduction is as follows: reduce, reuse, recycle or reprocess, and finally responsible disposal. The ultimate waste reduction is to not use the resource in the first place. Operations management has long been focused on waste reduction, so this is nothing new. Modern management programs like Lean Manufacturing represent today's best practices in this area.

Second on the waste reduction scale is reuse. This effort is most evident in a move toward reusable packaging and containers. Many companies now use more durable packaging materials (crates, cartons, pallets) that can be used a number of times instead of just once. Recycling is familiar to everyone today. Companies now consider recycling and reprocessing possibilities in product design, making sure that the products can be conveniently disassembled at end of life so valuable materials can be affordably recovered for use in new products and to prevent toxic materials from entering the waste stream.

The economics of waste reduction can be impressive. Using fewer resources inherently lowers costs. And most recyclable materials can be sold, generating revenue while reducing waste collection and landfill costs. In addition, some consumers are very concerned about environmental issues and actively seek out products from "green" producers and are even willing to pay a premium for products that are documented as sustainable or "earth friendly." Being "green" is good for your company's image even if you don't offer these kinds of premium priced products.

The other side of sustainability is the use of renewable materials wherever and whenever possible. Renewable materials (forest products and recycled materials as replacements for petroleum-based materials, for example, such as recycled paper burger boxes instead of foam plastic) often cost more and/or don't perform as well as the non-renewable counterparts, but companies are becoming more willing to pay the price for three reasons — regulatory pressure, consumer demand, and because it's the right thing to do.

Don't forget in all of this that energy usage is a prime concern for environmental sustainability. Electricity generation accounts for half of the carbon dioxide produced, and carbon dioxide is the definitive "greenhouse gas" that is the focus of so much attention among the environmental community. Other large sources of greenhouse gases are heating and transportation. Energy conservation must be high on the list of any company seeking to become more "green." In addition to energy conservation efforts in the plant, office and store, transportation management and optimization can significantly reduce the miles driven and fuel used in getting products through the supply chain. One such effort is the intelligent planning of "reverse logistics" for returning recyclables and bringing raw materials back to the plant in the same trucks that delivered the product.

The Lean Supply Chain

We are used to talking about Lean in the context of Lean Manufacturing and the techniques that are used to achieve Lean within our own plant – things like 5-S, Poka-Yoke and Kaizen. But how does Lean extend beyond the plant?

Extending Lean makes logical sense. Once we trim our own operations, reduce lead time and improve responsiveness, the path to further improvement leads outside of our own doors to the suppliers, customers, warehouses, transportation providers, and other supporting entities. Those entities can help get materials to us sooner and more in line with our needs and they can help speed products through the distribution chain to the end customer.

Some aspects of Lean naturally extend beyond our own four walls. Kanban replenishment, for example, works best when the suppliers are linked in to receive and respond to replenishment triggers directly. In most cases, this involves a blanket purchase agreement and a mechanism to signal releases (electronic kanban) directly to the supplier. However, other techniques that support Lean within the plant are not easily moved out into the broader world.

It's important not to confuse the techniques with the philosophy. Lean is a focus on adding value and eliminating those activities that don't add value (waste). Lean principles can be applied far beyond the plant floor – throughout the enterprise in such areas as customer service, administration and engineering – and throughout the supply chain. But the specific techniques used within the plant may or may not apply, or may need major rethinking to generate the kinds of improvements that we might expect and demand.

Applying Lean principles to the supply chain means enlisting trading partners in our efforts to drive out waste – it's not something we do by ourselves. The path to Lean in the supply chain can be summed up as CO-CO-CO-Collaboration

CO-operate: Establish the kind of close relationship with trading partners that will foster real cooperation to drive waste out of all activities both internal to the partner's operation and ‘in the seams' where product and information move between organizations. There has to be a certain level of trust between partners to enable such cooperation

CO-mmunicate: Open communication is the key to close cooperation. Electronic kanban is one example of communication on an operational level, but there also must be communication on a management and process improvement level to open new doors to waste elimination.

CO-ordinate: Collaboration is most visible in coordinated activities – smooth hand-offs of data and materials supported by joint efforts to link information and activities to eliminate delays, errors, miscommunication, or surprises.

All this adds up to collaboration, which the dictionary defines as working together, especially in a joint effort. Lean transformation within the plant can pay big dividends but the benefits of extending Lean thinking through the supply chain can be huge. To find out more about Lean Manufacturing visit www.daveturbide.com