Energy is redefining the scope of supply chain management

The three-flow model remains one of the most useful thought models in our field. Physical flows describe how materials, parts, and products move and are transformed, while information flows coordinate demand, supply, and capacity. Financial flows govern payments, working capital, and incentives. Success means aligning these flows so that networks become not only efficient but also adaptive and robust.Research and practice largely focus on total energy consumption and efficiency projects at the facility level, rather than on energy sourcing, infrastructure, and governance across tiers. Energy appears as a parameter in plant management, not as a cross-cutting flow with its own patterns and vulnerabilities. In a world in which a missing megawatt can stop a line as surely as a missing part, this view comes with a notable risk.

Analyses of the European energy crisis document how soaring gas and electricity prices forced metals, chemicals, and other energy-intensive sectors to curtail output, with ripple effects across supply chains. Work on clean-energy technology supply chains warns that constraints in energy systems and related value chains can quickly become constraints in the broader economy. Energy has moved from background noise to a front-row risk.Work on supply chain decarbonization shows that as carmakers shift from internal combustion engines to electric vehicles, a large share of lifecycle emissions and energy dependency moves upstream into the materials and battery value chains, especially steel, aluminum, and battery cells. Choices about energy efficiency and sourcing in early tiers influence overall environmental and cost performance. Together, these findings suggest that power availability and quality increasingly define what is feasible across manufacturing and transport, not just what is optimal.

The electric vehicle transition makes this shift visible. Upstream activities, including raw materials and battery production, account for a significant share of an electric vehicle’s lifecycle emissions, and lowering these emissions depends critically on access to low-carbon electricity in energy-intensive steps such as smelting and cell manufacturing. The Energy Transitions Commission concludes that scaling batteries and additional clean-energy technologies fast for achieving net-zero goals will strain mining, processing, and manufacturing capacity, all of which require large volumes of reliable, ideally green, power.Industrial geography adjusts accordingly. Strategies by vehicle and battery producers increasingly highlight access to renewable power, grid connections, and permitting timelines as decisive factors in siting new plants. Energy is no longer just flowing into the factory; it is pulling the factory towards itself.

Energy should therefore be viewed as a fourth flow in supply chains. The way electricity and fuels are acquired, converted, moved, stored, and used across the network is critical for the success of many businesses and the well-functioning of supply chain networks. Energy needs to be built into supplier selection and process design, rather than left to local engineers, because upstream energy use and sourcing affect performance downstream. Upstream energy intensity and energy mix in materials and components drive a large share of supply-chain emissions and risk.Energy also travels through its own supply chains. Concentrated mining, limited processing and manufacturing capacity, and delays in grid connections can slow the deployment of solar, batteries, and hydrogen systems. These bottlenecks affect the availability and price of low-carbon power for industries planning their transitions. Energy thus appears both as what powers the chain and as a chain in its own right.

Electric truck operations depend on synchronising vehicle schedules with charging infrastructure and local grid capacity. Joint optimisation of logistics and energy is needed to keep electric fleet operations feasible and cost-effective, because limited charging points or grid constraints can block otherwise attractive routing plans. Energy availability and infrastructure can turn into constraints in network design.The energy flow defines the boundaries within which routing, capacity deployment, and service commitments are possible. Ports and inland hubs that invest in grid capacity, shore power, and on-site generation open opportunities to electrify cranes, yard equipment, and warehouses. The fourth flow quietly decides which logistics corridors is future ready.

Recognising energy as a fourth flow calls for a different way of designing and steering supply chains. Location strategy for plants, warehouses, and key suppliers can incorporate explicit criteria on energy reliability, grid strength, and access to low-carbon power, alongside cost, lead time, and market proximity. Policy and scenario work on clean energy technology supply chain networks and industrial decarbonisation already treat these factors as central to competitiveness and resilience; supply chain leaders can mirror that logic in their own models.Supplier engagement can broaden beyond quality, cost, and delivery to include energy and emissions in a structured dialogue. Research shows that collaboration with suppliers on efficiency and energy sourcing has a substantial impact on total emissions and risk. Practically, this means asking strategic suppliers to share energy-use and energy-mix data, setting joint improvement goals, and reflecting on progress in performance discussions.Digital capabilities can help operationalise the fourth flow. Through supply chain digital twins, actors can combine operational data with scenario analysis to test how networks behave under different constraints, including energy. Studies on coordinated logistics-, energy operations, and energy-aware routing demonstrate that models that integrate logistics and energy data support better planning of electric fleets and infrastructure. Planners can then evaluate, in one view, how changes in power prices, grid limits, or charging roll-out affect service, cost, and emissions.Investment decisions bring the four flows together. Long-term contracts for low-carbon power and cleaner technologies are critical in reducing exposure and emissions. Public and private investment in energy infrastructure capacity is considered a prerequisite for industrial strength.⁶ Boards that ask for plans on how networks will stay powered, affordable, and compliant in changing energy and industrial systems are responding to the new reality.

Supply chain management is about seeing connections. The three-flow model captured many of them in an era when energy was abundant, largely invisible, and underpriced. Reviews of upstream energy management, analyses of EV and battery value chains, and assessments of clean energy technology supply chains now show that energy has moved to the forefront: it shapes where factories locate, which technologies scale, and how quickly industries can decarbonise. Leaders who treat energy as a fourth, managed flow—measured, modelled, and governed alongside goods, information, and finances—can turn a constraint into a source of strategic strength.