Key Takeaways
- Energy supply chains keep our world ticking, from our homes and various industries to governments and manufacturing.
- Energy supply chains cover everything from power generation to raw materials, transmission lines, and transport.
- The clean energy transition to net-zero emissions by 2050 requires worldwide cooperation over natural resources, technology developments, and energy sharing.
Flicking a light switch lights a room, and if you pause for a moment, it shines a spotlight on the energy supply chains that power the globe.
The copper in the cable, the LED light bulb, the plastic casing, and even the solar panels providing electricity for homes and businesses have most likely been sourced from multiple countries. Maybe your local natural gas power station is burning gas imported from Canada or further afield.
Indeed, the list goes on. Materials are mined or manufactured at various sites, then transported by trucks and trains, possibly built in faraway lands. An overseas company may even own your electricity supplier.
Energy supply chains thrive upon the interconnectivity brought about by globalization. And, somewhat counter-intuitively, these same global supply chains may help the world’s clean energy transition in the worldwide battle against climate change. Let’s explore how.
How Does the Energy Supply Chain Work?
The energy supply chain includes every element required to produce, transport, store, and use energy.
- Raw materials (input or procurement) span far and wide. For example, they could include manufacturing mining equipment to extract fossil fuels, parts for offshore wind farms, minerals for electric vehicle batteries, and components for LED lights.
- Generation covers energy production, using raw materials to produce electricity or oil, valuable fuels like gasoline, and products like light bulbs or solar photovoltaic panels.
- Next comes transmission, moving this energy via power grids for electricity or in fuel tankers for natural gas or oil, and distribution to where it is needed, such as our light switch.
- There may be a storage phase, like oil drums, gas stations, or liquefied natural gas (LNG). Other than hydroelectric reservoirs, there are few utility-scale electricity storage areas.
- The consumer or demand phase marks the end of the energy supply chain journey, such as switching on the light, turning on industrial furnaces, or filling your automobile with gasoline.
Clearly, there are many moving parts in an energy supply chain, and each is vulnerable to disruption.
Politicians increasingly discuss energy security, defined as “the uninterrupted availability of energy sources at an affordable price.” But energy security can be easily disrupted. Sustainability is another watchword.
In a world of finite resources, energy supply chains are becoming increasingly critical worldwide.
What Challenges and Disruptions Can Affect the Reliability of Energy Supply Chains?
Energy supply chains face multiple disruptions, including government policy, weather, global events like COVID-19, and production and manufacturing capacity. These vulnerabilities affect imports and exports across the energy industry.
Russia’s invasion of Ukraine is a classic example of energy supply chain disruption. In protest, European Union policymakers stopped importing Russia’s natural gas. In return, the Kremlin turned off the Nord Stream pipeline that supplied gas to Europe, leading to natural gas shortages.
It takes many years to open mines or natural gas sources. Russia’s natural gas withdrawal brought chaos to the energy markets. As a result of Russia’s actions, Germany’s economy, which relied on natural gas for manufacturing, went from the top-performing to the worst-performing major developed economy.
Energy supply chain risks abound. First, there are the raw materials. Fossil fuel extraction is one element, and critical minerals are another. For example, clean energy technologies like electric vehicles (EVs) require lithium, cobalt, graphite, and nickel.
Here are just a few examples of how energy supply chains have a global impact:
- Around 70% of cobalt comes from the Democratic Republic of Congo
- More than half of global lithium comes from Australia
- China has the most rare earth elements and dominates steel, cement, and aluminum production
- The Chinese also manufacture more EVs than any other country
As you can see, any breakdown in relations with these countries will disrupt energy supply chains for electric vehicles and more.
The COVID-19 pandemic saw semiconductor shortages worldwide as countries went into lockdown. These chips are vital, and everything from cars to cell phones was impacted. The knock-on effects for the energy sector sent prices soaring.
Extreme weather events provoked by climate change can also disrupt energy supply chains. The deadly Texas winter storm of 2021 saw the generation and transmission part of the supply chain fail, leaving many people without power for days.
Lastly, energy industries require skilled workers who take many years to train. Labor shortages in the energy sector can thwart even the best-laid energy plans.
Do Renewable Energy Sources Have Secure Energy Supply Chains?
Clean energy technologies are critical to fighting global warming by reducing carbon emissions. Climate goals like net-zero emissions have sparked a clean energy manufacturing revolution, with wind turbines, solar PVs, and energy-efficient appliances in strong demand.
Washington policymakers agree. President Joe Biden’s Inflation Reduction Act (IRA) is one of the largest-ever investments in the American economy. It includes initiatives, incentives, and subsidies to help people and communities install renewable energy systems.
As we’ve seen, all the critical materials and end products for these renewable energy systems will likely come from outside the United States. There is insufficient domestic manufacturing capability to meet demand, creating risk in the energy supply chain. So, who is powering the renewables revolution?
China manufactures more than three-quarters of all solar panels and around 80% of polysilicon, a core component in solar PV modules. Furthermore, about 60% of global wind turbines are made in China. Therefore, it’s easy to see how clean energy technology supply chains are vulnerable to shortages and disruptions outside a country’s control, no matter how keen it is on an energy transition to renewable energy.
What Technologies Are Used to Optimize and Monitor Energy Supply Chains?
Smart and digital technology is transforming energy supply chains. Previously, power grids were very centralized. A few powerful power stations distributed electricity over vast distances, often inefficiently.
Nowadays, modern power grids may have many thousands of macro and micro energy generation plants connected simultaneously. Homes, businesses, and communities may have small-scale solar panel arrays or wind turbines to push electricity into the grid.
Cloud computing and AI allow real-time monitoring of the supply and demand for this energy, with immediate suggestions about how to keep the lights on. Grid operators can fire up power plants when demand soars, ask micro-suppliers to add their power, or even get EV owners to push energy stored in the car’s battery into the grid.
Next up is global data processing, which helps the energy sector react to market price changes. There is much more competitiveness across international markets, with companies looking to provide the best value to customers. What happens in Ukraine indeed affects your utility bill.
Closer to home, smart meters and thermostats give people real-time control of their appliances and heating, helping them save energy. These energy efficiencies are crucial to reducing emissions — they could account for up to 40% of the required emissions to hit net zero by 2050.
The Internet of Energy (IoE) connects all these aspects: generation, distribution, and end-use. It gives a broad overview of the energy supply chain, from manufacturer to consumer, and could become the cog on which energy supply chains spin in the future.
What Is the Role of Storage Systems in Energy Supply Chains?
Energy storage systems (ESS) are critical in energy supply chains, and they will become even more critical as the world transitions to renewable energy.
Solar panels and wind energy produce intermittent electricity. That is, it needs to be daytime and sunny for solar PVs to work well and breezy for wind turbines to create electricity. We can’t always use all the electricity produced at the time; anything unused is wasted unless stored.
Utility-scale batteries are one option for storing this excess electricity, which can be released later when demand dictates. Batteries, however, are expensive, and there are very few utility-scale battery storage systems in operation.
Other options include vehicle-to-grid systems, where EVs push electricity stored in their batteries into the grid, pumped hydro storage, creating green hydrogen through electrolysis, and thermal storage. These ESS systems can later convert their stored energy into electricity.
What Factors Are Shaping the Future of Energy Supply Chains?
Energy supply chains are changing. Policymakers now factor in:
- Energy security: How to acquire critical materials from diverse sources.
- Greenflation: The increased cost of raw materials for renewable projects.
- Energy price volatility: Will another war or pandemic cause price spikes? Should more energy be stored as part of a long-term plan?
- Supply: Can renewable energy sources meet energy demands once fossil fuels phase out?
- Energy efficiency: Making the most of the energy we produce reduces the strain on energy supply chains.
What Is the Environmental Impact of Energy Supply Chains?
Energy supply chains bring huge environmental impacts, both positive and negative.
Countries like Botswana, South Africa, Kosovo, and Mongolia rely almost exclusively on coal to generate their electricity. Coal is the world’s most polluting fossil fuel and produces filthy mines and a multitude of contaminants when burned.
In contrast, some 85% of Iceland’s primary energy for heating and electricity production comes from renewable sources, making it a world leader. Residents don’t have to live with energy pollution like people in coal-dependent nations. Clean energy appears to be a win-win.
However, the picture fogs when considering all the materials required to build renewable and clean energy supply chains. For example, EV manufacturing spews 80% more emissions into the atmosphere than building a combustion-engine automobile. However, this is more than compensated by lower emissions over the EV’s lifetime, with no tailpipe emissions.
Manufacturing giant wind turbines and moving them worldwide is costly and requires vast resources. The cement used to build reservoirs damages the environment, as does flooding areas holding the water. These renewable technologies bring enormous long-term benefits that outweigh the short-term price, but that price mustn’t be ignored.
Furthermore, mining raw materials like lithium for EV batteries has enormous environmental effects. Chile’s Atacama Desert is one of the world’s driest regions but rich in lithium. Water-intensive lithium mining has scarred the landscape and drawn on precious reserves, leaving many communities without water to continue living there.
Cobalt miners in the Democratic Republic of the Congo have seen rises in congenital disabilities and health issues, alongside environmental pollution that has ruined the soil and lakes.
Add in emissions emitted from fossil-fuel-powered vehicles transporting raw materials or finished products like solar panels, and the energy supply chain emissions are substantial.
Energy Supply Chains Underpin Our Energy Transition
Energy supply chains have always been crucial. Before globalization, countries relied on their own natural resources. Nowadays, worldwide trading channels have opened the energy sector to trading, bringing an energy boom.
These fluid interactions have created an energy industry dependent on many moving parts. It’s not just the raw materials required to fire a power station anymore. Energy supply chains range from rare raw materials to manufacturing processes to infrastructure and transport networks.
Such energy supply chain interconnectivity leaves vulnerabilities to weather, cyber attacks, political decisions, and other disruptions. In fact, governments take the issue so seriously that the U.S. Department of Energy (DoE) has released a strategy to bolster America’s clean energy supply chains. These studies cover everything from materials, jobs, and renewable options to energy storage and training.
Protecting energy supply chains also requires caring for energy sources. Energy efficiency is as crucial to helping countries reach net-zero emissions by 2050 as switching to renewable energy sources and electric vehicles. You can even boost your energy supply chain by switching electricity suppliers to a deal that best suits your lifestyle and budget.
Smart technology will help us along the way. However, to ensure that energy supply chains remain secure and fair to all, the human spirit of cooperation and sharing will be required.
Brought to you by amigoenergy
All images licensed from Adobe Stock.