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This is based on the cost index, which is entered to give a weighting between speed and fuel efficiency. The cost index is calculated by dividing the per-hour cost of operating the plane by the cost of fuel.
The United States Consumer Price Index (CPI) is a family of various consumer price indices published monthly by the United States Bureau of Labor Statistics (BLS). The most commonly used indices are the CPI-U and the CPI-W, though many alternative versions exist for different uses.
Following declines, the energy index rose 2% in January, bringing it to an 8.7% increase on an annual basis. Meanwhile, the gasoline index increased 2.4% for the month – a 1.5% annual increase.
As of 31 December 2012, the average price of gasoline was $3.298/US gal ($0.87/L), with New York at $3.70/US gal ($0.98/L) for the highest in the US, and Colorado at $2.987/US gal ($0.79/L) for the lowest. [8] Finished motor gasoline amounts to 44% of the total US consumption of petroleum products. [9]
A price index ( plural: "price indices" or "price indexes") is a normalized average (typically a weighted average) of price relatives for a given class of goods or services in a given region, during a given interval of time.
Fuel efficiency (or fuel economy) is a form of thermal efficiency, meaning the ratio of effort to result of a process that converts chemical potential energy contained in a carrier into kinetic energy or work.
Production costs of low- and zero-carbon hydrogen are evolving. Future costs may be influenced by carbon taxes, the geography and geopolitics of energy, energy prices, technology choices, and their raw material requirements. It is likely that green hydrogen will see the greatest reductions in production cost over time.
The Cost competitiveness of fuel sources is a measure of whether or not particular fuel sources are cost competitive in the energy market, and is a primary factor in determining if a fuel source will be utilized.
Fuel price risk management, a specialization of both financial risk management and oil price analysis and similar to conventional risk management practice, is a continual cyclic process that includes risk assessment, risk decision making and the implementation of risk controls.
A cost-of-living index is a theoretical price index that measures relative cost of living over time or regions. It is an index that measures differences in the price of goods and services , and allows for substitutions with other items as prices vary.