A Presentation On…..

ENERGY DEMAND MANAGEMENT

BY:Komal Nigam132113106M.Tech. 2nd Sem Power System 1

CONTENT

Indian power sectorsFuture of demandsWhat is DSMWhy balance supply and demandExamples of DSMDSM planning procedureBarriers to achieve ideal DSMProblemsConclusion

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INDIAN POWER SECTOR

More than trebled installed capacity in the last two decades.

Large energy deficit and still larger peak power deficit.

Long hours of load shedding in different parts of the country.

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FUTURE OF DEMAND

The demand is likely to grow at a pace more than envisaged

Economy growing rapidly Expected growth might be much higherGrowth is linked to energy availabilityWe must generate more energy for the growth of economy

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WHAT IS DSM?

Controlling the quantity of energy used at specific times to

reduce system peak demand

load levelling

reduce overall system demand

energy efficiency

balance system supply and demand

demand response

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Why balance supply and demand?

Maintain minimum demand levels to

minimize waste

prevent strategic base load plant shutdowns

Keep a low maximum demand

avoid building new power plants

reduce emission of GHG & other pollutants

lower use of peaking plant power

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DSM Programs Include

Metrics

Actual Peak Reduction (MW)

Annual Effects (MWh)

Direct Load Control

Other Load Management

Energy Efficiency

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Examples of DSM

Balancing Supply & Demand

During periods of high demand

Interruptible customers

During periods of low demand

Energy storage

Energy incentives

Ex: Off-peak incentive rates

Minimizing Peak Power Requirements

Energy Efficiency Programs

Smart Metering (real-time pricing)10

Example – Minimizing Peak Power Requirements

31%

27%9%

9%

7%

18%

Residential Electricity End Use Climate Control

Kitchen Appliances

Water Heating

Lighting

Laundry Appliances

Other

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PEAK

SHIFT

VA

LL

EY

DSM can Change the LOAD SHAPE

Before

After

Strategicgrowth

From this StrategicSaving

To This

Or tothis

DSM can change the LOAD LEVEL

Load Leveling Strategies

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Traditional Utility Planning process, needs & tools

Supply side alternativesCapital CostsFuel costs

Load forecasting

Generation Planning

Production Costing

Financial Analysis

Rate Allocation

Iterate as necessary

Need to Predict & Provide for:Long Term Planning More Lead time Rising CostsEnvironmental Impacts

Tools:Demand Side Management

DSM FRAME WORK

DSM OBJECTIVES DEFINED/REDEFINED

DSM ALTERNATIVES IDENTIFIED

DSM PROGRAM IMPLIMENTED

DSM PROGRAM MONITORING

DSM EVALUATION & SELECTION

Barriers to Achieving “Ideal” DSM

Lack of support mechanisms

Inadequate capital investment

Inadequate information to public

Split incentives

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PROBLEMS

Energy and peak power shortage which leads to load shedding

Normally unannounced

Is there a way to overcome load shedding inspite of the shortages?

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What consumers do during load shedding

• They suffer, silently and helplessly• Some have invested in diesel generators • Many have purchased inverters• This is expensive for the middle class and out of reach for

the poorer section of society• They cater to a part of the lighting load only• Difficult to run refrigerators, water pumps ,AC• Inverters are energy guzzlers– Consume nearly twice the energy to charge their

batteries after they have been used– Further increases the loss due to harmonics

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Effective way to DSM

Load management using load rationing is actually an effective way forward for Demand Side Management

It will be a far more effective and a sure way to manage peak demand at the time of shortages as compared to influencing consumer behavior using TOD tariffs

It will help in conserving energy

The energy consumed by the batteries of the innumerable inverters will also be saved.

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RECOMMENDATIONS

To achieve widespread DSM success

Energy efficiency

New technologies

Widespread load levelling use

Real-time pricing

Off peak incentives

Energy storage

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Source: An EPRI Initiative to Advance the Efficient and Effective Use of Energy

New Technologies

International DSM Projects

Development Sponsored by World BankVietnam

Established DSM ProjectsItaly

Australia

South Africa

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CONCLUSION Without the more effective use of energy we would have to use 50% more energy than we actually do today.

Demand Side Energy Management focus on harnessing clean energy.

Reliability, security and quality of power supply are the main concern of DSM.

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We have achievedmany mile stones yet the further journey to achieve high customer satisfaction is on the horizon through DSM

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REFERENCES:1. www.ieadsm.org2. www.stem.se3. www.eia.doe.gov 4. http://europa.eu.int/index_en.htm 5. www.DemandSideManagement.com6. www.mospi.gov.in7. http://www.cea.nic.in/

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