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L.D. COLLEGE OF ENGINEERING

INTRODUCTION TO ENERGY DEMAND MANAGEMENT

ABHISHEK CHANDRA GANGWAR M.E.2 (EC-CSE) 140280705001What is Energy Management?Energy management is doing more with the same amount of energy or less energy.

Energy management saves money and makes buildings more comfortable, healthy, and safe.

DEFINITIONThe energy system consists of both supply-side and demand-side activities. In the early days when energy prices were cheap, the focus on the energy sector was on the supply-side. This meant that for any given demand, the objective was to arrange for adequate supply so that the demand is satised. The demand-side was considered as given and there was a presumption that the supply-side is easily inuenced and managed than the demand-side.However, with rising prices in the 1970s, researchers, governments and the utilities started to look at the entire gamut of the problem and it became apparent that ignoring the demand-side of the equation may not be an efcient way of managing the energy problem. The electric utilities in the USA were the rst to experiment with this idea and the concept started to gain importance in other energy industries as well. Now the concept is used in the gas industry, transport sector, water industry and elsewhereCATEGORIES OF ENRGY DEMAND MANAGEMENTLoad managementEnergy conservationFuel substitutionLoad buildingLoad management: Load management aims at reducing or changing the size or timing of the demand.Energy conservation: Energy conservation aims at reducing the demand , essentially through technical efciency improvements.Fuel substitution: Fuel substitution aims at replacing one fuel by another and thereby modies the demand.Evolution of DSM High oil prices in the 1970s provided justication for efforts directed towards reducing demand. The initial programmes were essentially aimed at energy conservation and load management.This period also saw efforts towards fuel substitution, so that demand for imported oil is reduced by moving towards locally available fuels.

The 1980s saw a more systematic use of the DSM in the electricity sector through the least-cost capacity expansion and integrated resource planning programmes.In the 1990s, as environmental concerns emerged, DSM received further support because of perceived benets of these programmes.

The imperative logic of Demand Side Management A better use of resources equals lower cost for serviceA balanced use of resources means a more secure and reliable energy supplyAn expansion for products/services using less energy (using more wisely) is an injection for future businessA step change in improved energy efficiency is the only way to achieve wide-spread welfare without resources depletion

JUSTIFICATIONAlways energy conversion has efficiency less then 100 %. So its better to save 1 KWH energy instead of producing 1 KWH more electricity.As many countries depend on import to meet their demand. So, reduction in demand reduces dependency on import. Ultimately it leads to energy security of nation.REFERENCESS. C. Bhattacharya, Energy Economics: Concepts, Issues, Market and governance, Springer, 2011.

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