The Operational and Strategic Rationale Behind the U.S. Military’s Energy Efforts
The recent debate over the role of the military in investing in renewable energy technologies, energy efficiency and conservation programs and alternative biofuels has included many voices that sometimes conflate the linked but distinct efforts by defense officials to address energy concerns. The rationale behind the military’s energy programs can be broken down into two efforts:
- Adapting to operational energy requirements and security challenges in Afghanistan and other combat theatres;
- Hedging against future uncertainty in the global petroleum market.
Adapting to Operational Energy Challenges
Military leaders have become increasingly worried about operational energy challenges in Afghanistan and other theatres where U.S. soldiers, sailors and airmen are deployed and are working to reduce the demand for energy that must be transported across volatile terrain.
To date, part of the military’s effort to reduce operational energy requirements includes:
- prioritizing energy efficiency in the acquisitions process for new combat platforms;
- fielding micro-grid technology to more efficiently manage traditional power distribution systems that waste energy;
- replacing — where possible — diesel-fuelled generators with solar panels and other renewable energy sources;
- equipping soldiers with advanced batteries that stay charged longer to help keep them in the fight;
- and increasing awareness among all U.S. military personnel about energy use to help promote conservation practices.
There are clear operational advantages to reducing the fuel required by military personnel in theater. In particular, reducing fuel consumption also curbs the demand for petroleum that has to be trucked across dangerous territory where the fuel and the soldiers and contractors transporting it are vulnerable to insurgent attack.
According to a 2009 Army Environmental Policy Institute study, for every 24 fuel convoys deployed in Afghanistan, one U.S soldier is wounded or killed. Those casualty counts are even more striking in the aggregate: the most recent estimates from the Department of Defense found that between 2003 and 2007, more than 3,000 Army personnel and private contractors were wounded or killed by insurgents attacking fuel and water convoys in Iraq and Afghanistan.
And besides the need to reduce unnecessary causalities, curbing the amount of fuel that has to be transported into a combat zone can act as a force multiplier, enabling soldiers that would otherwise be guarding convoys to reenter the fight.
There are also financial advantages to reducing operational energy requirements that are becoming increasingly relevant in a fiscally constrained budget environment. In general, reducing total energy consumption can help insulate the Department of Defense from dramatic energy price spikes. The Department of Defense estimates that every $1 increase in a barrel of oil adds approximately $130 million to the military’s energy bill.
Moreover, fuel consumed in combat zones is by its nature more expensive due to the fully burdened cost of fuel — that is, the total cost from acquiring the fuel from a supplier to delivering it to troops at the tactical edge in countries like Afghanistan. The personnel and transportation costs of delivering fuel by jet, truck or helicopter add to the initial $2 a gallon cost of fuel. Although the fully burdened cost of fuel has been suggested by some to top $400 a gallon, the Marine Energy Assessment Team, or MEAT, offers a more conservative assessment. According to the findings from a 2009 visit to Afghanistan, DOD’s Defense Energy Support Center paid $2.19 per gallon for fuel. When the fuel was delivered to the operational level — a forward operating base — in Afghanistan, the price increased to $6.39 a gallon. The MEAT then estimated that it cost $11.70 per gallon at the tactical edge — for those military units deployed outside the wire, presumably at remote outposts.
The uniqueness of each war often makes it difficult for defense planners to develop lessons learned from one conflict and apply them directly to the next one — except when it comes to operational energy. The experiences of fueling the force during the wars in Iraq and Afghanistan have revealed a critical choke point that the U.S. military can address: the delivery of fuel to troops in combat. The Department of Defense is leading efforts today to reduce fuel requirements and — where possible — plug in renewable energy technologies in lieu of diesel generators and other systems requiring loads of fuel, enabling the U.S. military to be more effective war fighters by managing the risks of delivering fuel in conflict. At the end of the day it is about reducing the amount of petroleum needed to fuel the force.
Hedging Against Strategic Uncertainty in the Global Energy Market
On the other side of the military energy coin are the efforts underway at the Department of Defense to research, develop and test alternative fuels, such as algae-based biofuel, and by the Navy to cooperate with the Departments of Agriculture and Energy in public-private sector ventures to develop refineries and scale up commercially available biofuel. Although these efforts are related to the work being done by DOD officials to assuage operational energy concerns, the military’s broad investments in biofuels have a different goal in mind: preparing to fuel the force using non-petroleum fuels.
Critics charge military leaders and administration officials with promoting a green agenda — using war fighters to combat climate change instead of violent extremists. But that is not it at all. Although being environmentally sustainable and promoting security are not mutually exclusive, the investments in alternative energy are first and foremost about ensuring that U.S. soldiers, sailors and airmen have access to the fuel they need to conduct their operations and protect U.S. interests decades from now.
There is a lot of uncertainty in the future petroleum market that is stirring anxieties about assured access to energy. Although technological breakthroughs in hydraulic fracturing (or “fracking”), ultradeep water offshore oil drilling and other techniques are unlocking new petroleum reserves in the western hemisphere to augment Middle East reserves, demand for energy could still outpace supply by mid-century, largely as a result of demand from major developing economies like China, Brazil, India and Turkey. As a result, petroleum supplies could become increasingly tight.
The Department of Defense increasingly faces concerns about assured access to energy resources necessary to power the military. Major supply disruptions stemming from conflict in the Persian Gulf that could close (even if only temporarily) the Strait of Hormuz, or a natural disaster that takes U.S. domestic petroleum refineries offline pose major challenges for the U.S. military and its dependence on petroleum. And even though legislation gives the Department of Defense priority access to U.S. domestic petroleum reserves, some policymakers share concerns that a long-term disruption could exhaust those supplies and put at risk the U.S. military’s ability to conduct its missions.
U.S. military investments in alternative biofuels are driven largely by this uncertainty in the global petroleum market and the need to reduce reliance on petroleum, which provides nearly 80 percent of all DOD energy. Diversification is the aim of the game. While energy conservation and efficiency programs and electrification of non-combat vehicles help hedge against this uncertainty by reducing the overall demand for energy, liquid fuels remain the real albatross for the military. Purchasing, producing and testing advanced biofuels that can serve as a drop-in replacement to conventional gasoline decades from now help diversify the liquid fuel sources and reduce the vulnerability of being tethered to only one source of fuel. The emphasis on drop-in replacement fuels is important: DOD is procuring aircraft, ships and vehicles today that will be in service for many decades and, as such, new liquid fuels must be chemically equivalent to work in engines being designed today.
Although current biofuels are not cost competitive with petroleum, the Department of Defense cannot wait for a petroleum supply disruption before it tests and evaluates new fuels in its combat equipment. Making investments in advanced biofuels today will drive the development so that these fuels (if and when they are needed) are standardized for military use. This will help the U.S. military hedge against a future where petroleum resources may be scarcer, requiring the military to rely on drop-in replacements. While critics will argue against this plausible but seemingly remote future, the military must be prepared for a range of contingencies, especially high-threat but low-probability ones.
Finally, DOD’s motivation to invest in clean biofuels such as hydro-treated algae fuel versus dirty alternative fuels derived from coal-to-liquid technologies is in part a response to the changing regulatory environment in the United States and abroad that is demanding the use of less-carbon intensive energy sources. President Barack Obama issued an Executive Order in October 2009 that charged federal agencies to measure and reduce their greenhouse gas emissions, providing military leaders with guidance on renewable energy investments. Additionally, many U.S. states like California have instituted renewable energy regulations that compel compliance by the U.S. military active in those states. Moreover, foreign countries in Europe and elsewhere have increased their environmental standards, including regulations on greenhouse gas emissions from fuels. The Department of Defense must be prepared to adapt to these emerging environmental regulations in order to guarantee the U.S. military’s freedom of access to foreign ports and territories.
Defense officials and military leaders overseeing DOD energy programs are promoting two linked but distinct efforts to address energy concerns.
The operational energy challenges that the United States faces today in Afghanistan and other countries threatens both blood and treasure. Military investments in energy efficiency and conservation programs, including renewable technologies that can displace the demand for petroleum, will help logisticians adapt to the challenges of fueling the force in a combat zone by reducing the total energy requirement and managing more efficiently the energy the military does consume.
Finally, given the strategic uncertainty of the global petroleum market, defense officials are helping lead the effort to research, develop, test and evaluate advanced biofuels that can serve as a drop-in replacement to conventional fuels.
Continuing these efforts will help the Department of Defense ensure it its prepared to adapt to a future where petroleum resources are increasingly scarce (even if that scenario seems remote), and, more importantly, ensure that its platforms will operate just as well on drop-in fuels.
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