Development and economization of consumer power generation equipment such as wind turbines and photovoltaic systems has led to an increase in the number of consumers that may produce more electrical power than they consume during peak generating conditions.

interaction energy is the contribution to the total energy that is caused by an interaction between the objects being considered.

The space between the primary and the secondary barrier, whether or not completely or partially occupied by insulation or other material, (IGC Code).

An interconnector is a structure which enables electricity to flow between electrical grids.

An intercooler is a mechanical device used to cool a gas after compression.

Made in separate parts; between floors, frames or beams, etc; the opposite of continuous.

Part of the machinery where different modules are connected and sometimes the point where humans interact with machines, commonly know as a man-machine interface (MMI).

An interface is the boundary between two spatial regions occupied by different matter, or by matter in different physical states.

An electrical instrument for detecting the boundary between oil and water.

An interference fit, also known as a press fit or friction fit is a form of fastening between two tight fitting mating parts that produces a joint which is held together by friction after the parts are pushed together.

An intergovernmental body of the United Nations that is dedicated to providing the world with objective, scientific information relevant to understanding the scientific basis of the risk of human-induced climate change, its natural, political, and economic impacts and risks, and possible response options.

The air- or pump-activated inclination equalising systems operating during loading and unloading, in order to keep heel as low as possible.

Automatic in-service inclining test system developed by the German company Intering in order to improve safety and payload.

Intermedial load refers to those electricity-generation technologies contributing to satisfy the demand in a range between the base load and peak load of the electricity system.

A rigid, semi-rigid or flexible, portable bulk container packaging of a capacity of not more than 3m3, designed for mechanical handling and tested for its satisfactory resistance to handling and transport stresses.

The amount of electricity demand that is higher than the baseload but less than the peak load.

The lengths of shafting between the propeller shaft and the engine or the gearbox.

Intermediate-level waste (ILW) contains higher amounts of radioactivity compared to low-level waste.

The frequency a power source is unintentionally stopped or partially unavailable.

Resources that are on occasion not available such as the solar, wind or wave energy.