6 FUEL, it is used in power plants, ships and large heating installations. California's Bunker C fuel oil has high sulfur content, which causes air quality concerns when burned as fuel. In electric utility operations, a busbar is a conductor that serves as a common connection for two or more circuits. It may be in the form of metal bars or high-tension cables. A hydrocarbon gas found in the earth along with natural gas and oil.
Butane turns into a liquid when put under pressure.
It is sold as bottled gas. It is used to run heaters, stoves and motors, and to help make petrochemicals. An agreement between utility and customer to import power when the customer's service would otherwise be interrupted.