A very heavy substance, left over after other fuels have been distilled from crude oil. It is used in power plants, ships and large heating installations. Bunkers are a ship’s fuels; usually heavy fuel oil but can also be gasoil. Has an API gravity about 10.5o
The standard unit for measuring a quantity of thermal energy. One Btu equals the amount of thermal energy required to raise the temperature of one pound of water one degree Fahrenheit and is exactly defined as equal to 1,055.05585262 joule, rounded to 1,055.056 joule, for most applications. (A joule is equal to one watt-second.)
The UK’s largest producer of electricity. British Energy owns and operates eight nuclear power stations with a combined capacity of almost 9,000 MW and one coal-fired power station of 1,960 MW. The nuclear power stations include two types of nuclear reactors: the advanced gas-cooled reactor (AGR); and one (Sizewell B) pressurized water reactor (PWR). The AGR reactors include Hinkley, Heysham and others. In September 2008 British Energy was bought over by the French corporation EDF for 12.5 billion pounds sterling
Of very small diameter
The mechanism involves putting a cap on overall carbon emissions and allows companies to buy and sell emissions reductions, so that the cheapest cuts get made first. It is a means of cutting emissions from power stations.
The acquisition of a specified quantity of generating capacity from another utility for a specified period of time. The utility selling the power/capacity in the infrastructure is obligated to make available to the buyer a specified quantity of power/capacity
In the natural gas sector, it is the capacity component in the transmission tariff for consumers of the transmission system.
An element in a two-part pricing method used in capacity transactions (energy charge is the other element). The capacity tariff is calculated based on the amount of capacity being purchased. Under the terms of the transportation agreement between INGL and natural gas consumers in Israel consumers have to pay the capacity charge whether they consume/transport the gas or not. To secure the finance for instance to build the Interconnector in the UK the original customers agreed to book all the then available capacity in the new system and signed up as IUK Shippers for a 20-year term. They agreed to pay a capacity charge throughout that period which provided a set rate of return on the capital investment required to deliver the project. Similarly, the subsequent projects to enhance the capacity of the Interconnector system have been funded on the basis of a capacity tariff paid over the remainder of the 20-year term (to the year 2018) and which provide a set rate of return. Capacity tariffs are paid monthly, whether or not gas is shipped, provided that the contracted capacity is made available for use (or is unavailable due to events such as planned maintenance).
