The United States Department of Defense is one of the largest single consumers of energy in the world, responsible for 93% of all US government fuel consumption in 2007 (Air Force: 52%; Navy: 33%; Army: 7%. Other DoD: 1%). [1] In FY 2006, the DoD used almost 30,000 gigawatt hours (GWH) of electricity, at a cost of almost $2.2 billion. The DoD's electricity use would supply enough electricity to power more than 2.3 million average American homes. In electricity consumption, if it were a country, the DoD would rank 58th in the world, using slightly less than Denmark and slightly more than Syria (CIA World Factbook, 2006). [1] The Department of Defense uses 4,600,000,000 US gallons (1.7×1010 L) of fuel annually, an average of 12,600,000 US gallons (48,000,000 L) of fuel per day. A large Army division may use about 6,000 US gallons (23,000 L) per day. According to the 2005 CIA World Factbook, if it were a country, the DoD would rank 34th in the world in average daily oil use, coming in just behind Iraq and just ahead of Sweden. [1]
The military recognizes that renewable energy can provide improvements in force safety and budget stability as well as mitigate climate change so it has several programs working on deploying alternative energy at major facilities and in forward operating bases. Admiral Samuel J. Locklear has called climate change the biggest concern for the United States military. [2] [3]
The Air Force is the largest user of fuel energy in the federal government. The Air Force uses 10% of the nation's aviation fuel. (JP-8 accounts for nearly 90% of its fuels.) This fuel usage breaks down as such: 82% jet fuel, 16% facility management and 2% ground vehicle/equipment. [4] To meet renewable energy goals, the Air Force plans to certify its entire fleet on coal-to-liquid synthetic fuel blends by 2011. By 2016, it plans to fuel half of its domestic transportation by US-produced synthetic blends, including blends of biofuels and jetfuels, known as Hydrotreated Renewable Jet (HRJ). [5] The Air Force is currently the leading purchaser of renewable energy within the Federal government and has been a long time pioneer of renewable energy development and leadership. The Air Force is recognized by the Environmental Protection Agency as a Green Power Partner, one of the nation's top purchasers of green power. [6] The Air Force Energy Plan, published in May 2010, includes more information about the Air Force's goals, including reducing demand, increasing supply, and changing the culture to include energy awareness. [7]
In 2010, DoD established the Office of the Assistant Secretary of Operational Energy Plans and Programs to coordinate energy issues. In July 2010, DoD also signed a Memorandum of Understanding with the U.S. Department of Energy to facilitate cooperation and accelerate research, development, and deployment of energy efficiency and renewable energy technologies. [5] DoD's Energy Conservation Investment Program (ECIP) improves the energy and water efficiency of existing Military Services' facilities. The program's projects help the Military Services save on energy usage and cost. [8] The American Recovery and Reinvestment Act of 2009 provided $120 million for the ECIP. [ citation needed ] The American Recovery and Reinvestment Act of 2009 has also given money for the Army, Navy, Marine Corps, Air Force, Army Reserve, Navy Reserve, Marine Corps Reserve, Air Force Reserve, Army National Guard and Air National Guard facilities to invest in energy efficiency.
In 2009, the US Army stated that it had prioritized renewable energy strategies in Iraq. [9] Strategies include the Tactical Garbage to Energy Refinery Program, which converts 1 short ton (0.91 t) of waste to 11 US gal (42 L) of JP-8 fuel, a photovoltaic flexible, portable mat, insulating foam technology, hybrid-electric Manned Ground Vehicles (MGV), and highly efficient portable cells. [9] The American Recovery and Reinvestment Act gave more than $150 million to develop these technologies. [9] Stateside, the Army created the Net Zero program with a goal to have 30 installations achieve net-zero energy by 2030, including some that will also be net-zero in waste and water. [5] [10] In 2011, they opened the Base Camp Systems Integration Laboratory, which compares an energy efficient base camp with a traditional one and trains soldiers to use energy efficient technologies. [11] The Army Energy Security Implementation Strategy, [12] published in 2009, gives details about the Army's energy goals. [13]
The Department of the Navy established Task Force Energy to focus on meeting energy goals, which include reducing non-tactical petroleum use in the commercial fleet by 50 percent by 2015, producing at least 50 percent of shore based energy from alternative sources by 2050, acquiring 50 percent of total energy from alternative sources by 2020, and having 50 percent of Navy and Marine Corps installations be net-zero by 2020. [5] [14] The Navy hopes to demonstrate a Green Strike Group (fueled by biofuels and nuclear power) by 2012 and sail the Great Green Fleet by 2016. [5] The Office of Naval Research developed and deployed the Experimental Forward Operating Base (ExFOB), including photovoltaic energy, shelter insulation, small unit water purification, and energy efficient heating, lighting, and cooling. [15]
The Marine Corps established the Expeditionary Energy Office to increase combat effectiveness by reducing the need for liquid fossil fuel by 50 percent by 2025, using liquid fuel for mobility only. [16]
The Defense Department plans to invest $9 billion to improve energy use in military operations through 2017. [17]
Through the SolarStrong program, a total of 300MW of PV installations were done on 120,000 roofs of base housing throughout the U.S. [18] The 14MW Nellis Solar Power Plant went online in 2007. Fort Bliss has a 1.4MW PV array as well as 13MW of base housing PV and a second 15MW solar farm should be online in 2015. [19] Fort Irwin had initially proposed a 500MW PV farm but 15MW solar farm was later awarded for construction with a separate 2MW PV system at the base hospital. A 14MW PV plant was built at China Lake in 2011. [20]
Fort Drum converted a coal power plant to a 28MW biomass plant. [21] In 2014, the U.S. military invested $210 million in 3 biofuel refineries which will produce fuels which meet military specifications. [22]
Renewable energy is energy from renewable natural resources that are replenished on a human timescale. The most widely used renewable energy types are solar energy, wind power, and hydropower. Bioenergy and geothermal power are also significant in some countries. Some also consider nuclear power a renewable power source, although this is controversial. Renewable energy installations can be large or small and are suited for both urban and rural areas. Renewable energy is often deployed together with further electrification. This has several benefits: electricity can move heat and vehicles efficiently and is clean at the point of consumption. Variable renewable energy sources are those that have a fluctuating nature, such as wind power and solar power. In contrast, controllable renewable energy sources include dammed hydroelectricity, bioenergy, or geothermal power.
Jet fuel or aviation turbine fuel is a type of aviation fuel designed for use in aircraft powered by gas-turbine engines. It is colorless to straw-colored in appearance. The most commonly used fuels for commercial aviation are Jet A and Jet A-1, which are produced to a standardized international specification. The only other jet fuel commonly used in civilian turbine-engine powered aviation is Jet B, which is used for its enhanced cold-weather performance.
The National Renewable Energy Laboratory (NREL) in the US specializes in the research and development of renewable energy, energy efficiency, energy systems integration, and sustainable transportation. NREL is a federally funded research and development center sponsored by the Department of Energy and operated by the Alliance for Sustainable Energy, a joint venture between MRIGlobal and Battelle. Located in Golden, Colorado, NREL is home to the National Center for Photovoltaics, the National Bioenergy Center, and the National Wind Technology Center.
Renewable fuels are fuels produced from renewable resources. Examples include: biofuels, Hydrogen fuel, and fully synthetic fuel produced from ambient carbon dioxide and water. This is in contrast to non-renewable fuels such as natural gas, LPG (propane), petroleum and other fossil fuels and nuclear energy. Renewable fuels can include fuels that are synthesized from renewable energy sources, such as wind and solar. Renewable fuels have gained in popularity due to their sustainability, low contributions to the carbon cycle, and in some cases lower amounts of greenhouse gases. The geo-political ramifications of these fuels are also of interest, particularly to industrialized economies which desire independence from Middle Eastern oil.
Energy security is the association between national security and the availability of natural resources for energy consumption. Access to cheaper energy has become essential to the functioning of modern economies. However, the uneven distribution of energy supplies among countries has led to significant vulnerabilities. International energy relations have contributed to the globalization of the world leading to energy security and energy vulnerability at the same time.
Renewable energy commercialization involves the deployment of three generations of renewable energy technologies dating back more than 100 years. First-generation technologies, which are already mature and economically competitive, include biomass, hydroelectricity, geothermal power and heat. Second-generation technologies are market-ready and are being deployed at the present time; they include solar heating, photovoltaics, wind power, solar thermal power stations, and modern forms of bioenergy. Third-generation technologies require continued R&D efforts in order to make large contributions on a global scale and include advanced biomass gasification, hot-dry-rock geothermal power, and ocean energy. In 2019, nearly 75% of new installed electricity generation capacity used renewable energy and the International Energy Agency (IEA) has predicted that by 2025, renewable capacity will meet 35% of global power generation.
The Nellis Solar Power Plant is a 14-megawatt (MW) photovoltaic power station located within Nellis Air Force Base in Clark County, Nevada, northeast of Las Vegas. The power plant was inaugurated in a ceremony on December 17, 2007, with Nevada Governor Jim Gibbons activating its full operation. On average, it has since generated 32 gigawatt-hours of electricity annually and supplied more than 25% of the power used at the base.
According to data from the US Energy Information Administration, renewable energy accounted for 8.4% of total primary energy production and 21% of total utility-scale electricity generation in the United States in 2022.
The renewable-energy industry is the part of the energy industry focusing on new and appropriate renewable energy technologies. Investors worldwide are increasingly paying greater attention to this emerging industry. In many cases, this has translated into rapid renewable energy commercialization and considerable industry expansion. The wind power, solar power and hydroelectric power industries provide good examples of this.
An aviation biofuel is a biofuel used to power aircraft and is a sustainable aviation fuel (SAF). The International Air Transport Association (IATA) considers it a key element in reducing the environmental impact of aviation. Aviation biofuel is used to decarbonize medium and long-haul air travel. These types of travel generate the most emissions, and could extend the life of older aircraft types by lowering their carbon footprint. Synthetic paraffinic kerosene (SPK) refers to any non-petroleum-based fuel designed to replace kerosene jet fuel, which is often, but not always, made from biomass.
Renewable energy in Canada represented 17.3% of the Total Energy Supply (TES) in 2020, following natural gas at 39.1% and oil at 32.7% of the TES.
A low-carbon fuel standard (LCFS) is an emissions trading rule designed to reduce the average carbon intensity of transportation fuels in a given jurisdiction, as compared to conventional petroleum fuels, such as gasoline and diesel. The most common methods for reducing transportation carbon emissions are supplying electricity to electric vehicles, supplying hydrogen fuel to fuel cell vehicles and blending biofuels, such as ethanol, biodiesel, renewable diesel, and renewable natural gas into fossil fuels. The main purpose of a low-carbon fuel standard is to decrease carbon dioxide emissions associated with vehicles powered by various types of internal combustion engines while also considering the entire life cycle, in order to reduce the carbon footprint of transportation.
The energy policy of the Obama administration was defined by an "all-of-the-above" approach which offered federal support for renewable energy deployment, increased domestic oil and gas extraction, and export of crude oil and natural gas. His presidency's first term was shaped by the failure of his signature climate legislation, the American Clean Energy and Security Act, to pass, and then climate and energy disasters including the Deepwater Horizon oil spill in 2010 and then Hurricane Sandy, which took place during the 2012 election. In his second term, Obama lifted the ban on crude oil exports and approved liquified natural gas exports; his planned regulatory approach to reducing greenhouse pollution in the electricity sector, the Clean Power Plan, was blocked by the U.S. Supreme Court.
Policy makers often debate the constraints and opportunities of renewable energy.
Energy in the U.S. state of Hawaii is produced from a mixture of fossil fuel and renewable resources. Producing energy is complicated by the state's isolated location and lack of fossil fuel resources. The state relies heavily on imports of petroleum; Hawaii has the highest share of petroleum use in the United States, with 67% of electricity generation in the state coming from petroleum in 2023, compared to less than 1% nationally.
Carbon-neutral fuel is fuel which produces no net-greenhouse gas emissions or carbon footprint. In practice, this usually means fuels that are made using carbon dioxide (CO2) as a feedstock. Proposed carbon-neutral fuels can broadly be grouped into synthetic fuels, which are made by chemically hydrogenating carbon dioxide, and biofuels, which are produced using natural CO2-consuming processes like photosynthesis.
The United States Navy's Great Green Fleet was an energy cost saving measure announced in 2009 to begin using a combination of conventional diesel fuel and biofuels in a 50/50 mixture. The first demonstration by the USS Nimitz carrier task group during RIMPAC in 2012 was completed without incident. The Great Green Fleet, the popular nickname, is an homage to the Great White Fleet of the early 20th century.
Energy subsidies are government payments that keep the price of energy lower than market rate for consumers or higher than market rate for producers. These subsidies are part of the energy policy of the United States.
In 2013, renewable energy provided 26.44% of the total electricity in the Philippines and 19,903 gigawatt-hours (GWh) of electrical energy out of a total demand of 75,266 gigawatt-hours. The Philippines is a net importer of fossil fuels. For the sake of energy security, there is momentum to develop renewable energy sources. The types available include hydropower, geothermal power, wind power, solar power and biomass power. The government of the Philippines has legislated a number of policies in order to increase the use of renewable energy by the country.
Denmark is a leading country in renewable energy production and usage. Renewable energy sources collectively produced 81% of Denmark's electricity generation in 2022, and are expected to provide 100% of national electric power production from 2030. Including energy use in the heating/cooling and transport sectors, Denmark is expected to reach 100% renewable energy in 2050, up from the 34% recorded in 2021.
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