Energy conservation refers to all measures to minimize the amount of energy consumed. Energy efficiency refers to the efficiency of the use of energy, ie the ratio of benefit to energy expenditure. There are financial incentives to save energy, in addition, there may constraints or restrictions. It is possible that the energy source is lower in quantity than the desired quantity available (temporarily or permanently). This might be due to insufficient production capacity or due to insufficient capacity of a network connection or a pipeline.
It can also be due to insufficient power generation capacity or delivery problems (eg due to political tensions, wars or weather conditions). This causes undesirable (avoidable or unavoidable) side effects. Health and environmental damage, for example, by exhaust fumes, noise, greenhouse gas or radioactivity (eg forest degradation, global warming), are there too. In market economies, prices rise in energy prices, as long as demand exceeds supply. If a lower price elasticity of demand or a low price elasticity of supply are available, small differences between supply and demand can lead to considerable price fluctuations. Thus, in order to conserve energ, it is important to unplug different electronic and electrical devices when they are not in use. This will help save a lot of energy.