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DEMAND SIDE
MANAGEMENT
By-
Assi. Prof. SHIVRAJ N NALAWADE
Electrical Engineering Dept.
NBNSSOE
Supply side management:
• Supply-side management (SSM) refers to actions taken to ensure the
generation, transmission and distribution of energy are conducted
efficiently.
• This has become especially important with the deregulation of the
electricity industry in many countries, where the efficient use of
available energy sources becomes essential to remain competitive.
• Utility companies may look at means of modifying their load profile
to allow their least efficient generating equipment to be used as little
as possible.
• Why it is necessary?
– To Ensure sustained availability of reliable energy
– To Meet increasing electricity demand
– To reduce environmental impact of energy production and supply
*Important point-There is balance between supply & demand side.
Supply side measures
Simplified electricity supply chain
• Resources and resource preparation
1.Clean coal technology
2.Fuel substitution
• Power generation and energy conversion
1.Proper maintenance
2.Data and performance monitoring
3. Combustion control
4.Upgradation of generation unit
• Transmission and distribution
1.Transmission lines
2.Data monitoring and control
3. Load aggregation
4. Facts
Up gradation of generation units
• Upgrading generating units can improve reliability,
increase output and reduce environmental impacts
from electricity generation.
• Typical improvements are the installation of new
and improved burners, extra flue gas heat recovery,
additional heat recovery from hot blow down water,
as well as modernization of instruments and
combustion control systems.
• For very old power plants, it may be justified to
replace the old equipment completely with a new
generation plant designed and built to the best
modern efficiency standards.
• There are a large number of possible measures to
adopt to raise the operating efficiency of an existing
power plant.
• Implementation depends on the type of plant, the
technology currently used, the level of maintenance,
and many such factors that are site-specific.
• It is therefore impossible to estimate the potential
improvements without a careful analysis of the
actual plant and the costs involved.
• However, it is possible to make very rough
estimates of the typical range of figures that might
be encountered in practice.
Demand side management
Load aggregation
• Electric load aggregation is the process by which individual
energy users band together in an group to secure more
competitive prices that they might otherwise receive
working independently.
• Benefits-
• 1. Increased Buying Power-Through load aggregation,
companies can enhance their purchasing power by taking
advantage of load diversity among multiple facilities as a
means of improving the overall load factor of the group.
• 2.Improved Load Factor-Load factor is the ratio of
electricity consumption to peak demand (expressed as a
percentage) for each billing period.
• A high load factor means power usage is relatively
constant and it is beneficial to utility because the billing is
done on basis of maximum demand.
FACTS devices
• This offers ways of attaining an increase of power
transmission capacity at optimum conditions, i.e. at
maximum availability, minimum transmission losses, and
minimum environmental impact. Plus, of course, at minimum
investment cost and time expenditure.
• Important devices power transmission involving FACTS and
Power Quality devices:
• SVC (Static Var Compensators),
• Thyristor-Controlled Series Capacitors (TCSC) and Statcom.
• PST (Phase-shifting Transformers),
• IPC (Interphase Power Controllers),
• UPFC (Universal Power Flow Controllers),
• and DVR (Dynamic Voltage Restorers).
Generally FACTS controllers are classified
as:
 Series Controllers
 Shunt Controllers
 Combined Series-Series Controllers
 Combined Series -Shunt Controllers
TYPES FACTS CONTROLLS
Ar
ea
1
Ar
ea
2
Ar
ea
1
Ar
ea
2
Series
FACTs
device
Shunt FACTs
device
Bus
1
Bus 2 Bus 1 Bus 2
powerpower
Figure 3 Two-area power system with series
FACTS device
Figure 4 Two-area power system with shunt
FACTS device
receiving end
Sending end
receiving endSending end
Facts are available in
• Shunt compensator
1. Shunt capacitive compensator- for PF
improvement of line.
2. Shunt inductive compensator-for charging
the transmission line or used when there is
very low load at receiving end.
 The Static VAR(variable reactive)
Compensator (SVC) is one of the
shunt connected FACTS devices,
which is based on power
electronics.
 It helps in :
1.voltage regulation,
2.reactive power control and
improving the transient stability of the
system.
 The voltage regulation by SVC is
done, by controlling the amount of
reactive power injected into or
absorbed from the power system.
STATIC VAR COMPENSATOR (SVC)
Figure 5 SVC
structure
Types of common SVCs are
• Thyristor –controlled reactor(TCR)
• Thyristor –switched reactor(TSR)
• Thyristor –controlled capacitor (TCC)
• Thyristor –switched capacitor (TSC)
• Mechanically switched capacitor/
reactor(MSC/MSR)
• Series compensator-used for insertion of
reactive power element in transmission lines.
• 1. fixed series capacitors(FSC)
• 2.thyristor controlled series compensation
• A. thyristor controlled series capacitor(TCSC)
• B. thyristor controlled series reactor(TCSR)
• C. thyristor switched series capacitor(TSSC)
• D. thyristor switched series reactor(TSSR)
SSM Constraints and Challenges
• Need of comprehensive information
• Balance between supplier and consumer
• Short term approach
• First cost decision making
• Lack of technical expertise
Demand Side management
• It is also called as Energy Demand
Management.
• The modification of consumer demand for
energy through various methods such as
financial incentives and education is termed as
Demand Side Management.
• The main goal of demand side management is to
encourage the consumer to use less energy
during peak hours, or to move the time of
energy use to off-peak times such as night time
and weekends.
• Definition - DSM (Demand Side Management) is
the 'Scientific control of usage and demand of
Electricity, for achieving better load factor and
economy, by the Licensee/Supplier'.
Benefits of Demand Side Management
•
Customer Benefits Utility Benefits Social Benefits
Satisfy electricity
demands
Lower cost of service
Reduce environmental
degradation
Reduce / stabilize
costs or electricity bill
Improve operating
efficiency,
Flexibility
Conserve resources
Maintain/improve
productivity
Improve customer
service
Protect global
environment
18
The barriers for DSM
• i) Monopoly power market structure.
• ii) No competition which leads to traditional and
inefficient tariff structure.
• iii) Lack of creating awareness among consumers
about the efficient use of energy.
• iv) Lack of energy efficient environment.
• v) Huge gap between supply and demand of energy.
• vi) Lack of proper incentive schemes to consumer on
using energy efficient appliances and utility to
implement DSM solutions.
• vii) Power system reliability, quality and stability is not
able to keep itself in standard position.
*Initiative from the consumer side is very
important for successful DSM
• The scope of DSM includes
1. Load shifting/ Load management
2. Energy conservation
3. Increased electrification
06-Mar-17 20
Implementation of DSM
Planning &implementation of DSM
1. Develop end-use Demand forecasting
• Forecasting by end-use is an essential pre-
requisite for effective DSM planning and
implementation.
• Mid- and long-term forecasts of power demand
variations play a very important role in the
development of a DSM programme.
• Demand forecasting is an exercise that every
electricity-generating company should carry out
regularly in order to assess its future equipment
requirements.
06-Mar-17 22
Planning & Implementation of DSM
2. Undertake Load/ Market Research to identify end-use
patterns and market barriers
• To design effective DSM programmes it is important to
know how electricity is used and what barriers are
preventing customers from using efficient technologies.
• Load research should be undertaken to estimate load
curves for each sector or region, using local sub-metering,
customer bill analysis and customer surveys.
• Major areas of interest to DSM programmes include the
residential, commercial, industrial, and public utility
sectors.
• Market research is needed to understand the target
market, identify barriers and evaluate possible solutions.
06-Mar-17 23
Planning & Implementation of DSM
3. Define load-shape objectives
06-Mar-17 24
Planning & Implementation of DSM
•Reduction in peak demand
•Controlling the equipments
•Controlled tariff rate
•Increasing load during off peak
hours
•Building off peak loads
•Demand shift to off peak
•Shift peak load to off peak
hours
•Popular applications include
use of storage water heating,
storage space heating, and
coolness storage.
Peak Clipping Valley filling load shifting
3. Define load-shape objectives
06-Mar-17 25
Planning & Implementation of DSM
•The reduction of utility load,
more or less equally,
during all or most hours of the day
•Non traditional approaches to
load management
•The INCREASE of utility load
•Load-shape change which
refers to overall increase in sales
•The interruptible
agreements by
utility to alter
customer energy
consumption
on an as-needed basis
Strategic conservation strategic growth flexible load shape
4. Identify target sectors, end-uses, and measures
• The collected information is normally useful in
determining a typical load curve for each end-
use.
• Find out load-curve management objectives
• Choose sectors and end-uses that account for the
largest power consumption and peak loads, or
will do so in the future.
• Select DSM measures which will have the largest
impact on peak demand and electricity use.
06-Mar-17 26
Planning & Implementation of DSM
5. Identify sources of financing
• In any DSM programme, financing is needed
for individual projects undertaken by
participants.
• Utilities may also require financing to cover
administrative costs and cost sharing
investments.
• Government/public fund is required.
06-Mar-17 27
Planning & Implementation of DSM
6. Review Cost Sharing and Viability Options
• Cost sharing in a DSM programme should try
to maximize viability for each partner
(participant, utility, and government).
• The wider the differences between tariffs, the
higher the utility investment can be, which in
turn leads to a higher participation rate.
06-Mar-17 28
Planning & Implementation of DSM
7. Programme Selection and Design
• Identifying a list of programmes for each
customer class.
• Formation of brief report corresponding to
that program
• Uniform reporting format is required.
06-Mar-17 29
Planning & Implementation of DSM
8. DSM Cost/Benefit Analysis
• Based on the case study /measurement
• Calculation of financial interest
9. Identify Local Socio-Economic and Environmental
Impacts
• Most DSM programmes provide indirect economic and
environmental benefits as well as reducing emissions
and other impacts from power supply facilities.
• Eg. employment is created in the energy services
industry
06-Mar-17 30
Planning & Implementation of DSM
10. programme Implementation Plan
• Implementation of any DSM programme
requires a core DSM staff or “cell” within a
power utility to develop a plan.
• For the programme and manage its
implementation, even if consultants are hired
for both aspects of the programme.
06-Mar-17 31
Planning & Implementation of DSM
demand side management in agricultural
• Why DSM need in agriculture?
• Agriculture accounts for about 27% of electricity
consumption in the country, which is increasing due
to rural electrification efforts of the Government.
• The electricity is largely used in agricultural pump
sets which generally have very poor efficiency. Most
of the pilot projects as well as other studies project
potential of 45-50% by mere replacement of
inefficient pumps. Overall electricity savings (from
20 million pumps) is estimated at 62.1 billion units
annually
• The energy consumption is high due to-
• 1.improper selection and installation
• 2.use of high friction piping
• 3.Lack of proper maintenance
• Options for improvement-
• 1.Remove of unnecessary pipe lengths
• 2. Remove of unnecessary bends
• 3.replacement of GI pipe with PVC pipe
• 4. capacitor bank for PF improvement
• 5. do regular maintenance
Demand side management
DSM in residential sector
• Residential electricity consumption contributed
to about 25% of total electricity in India.
• The main areas of consumption are
• 1.lightning
• 2.celling fan
• 3.television
• 4.refrigeration
• 5.air conditioners
Demand side management
Demand side management
DSM in commercial sector
• The main areas of consumption are
lightning
refrigeration
air conditioners
Ventilation
Heating
Water heating
Demand side management
Demand side management
DEMAND MANAGEMENT THROUGH
TARIFFS (TOD)
• In India, Time of Day (TOD) tariff that was used mostly
for industrial sector is now slowly being introduced for
commercial sector as well.
• if you have an office or own a small business, this
change in tariff can surely impact your electricity bill. It
may present a chance to you to reduce your bill by
altering the way you consume electricity in your office.
• Tariff structure:
1.time of day tariff
2.PF incentive & penalty/ reactive power charges.
1.Time Of Day (TOD) pricing
• Time of Day (or TOD) tariff is a tariff structure in which
different rates are applicable for use of electricity at
different time of the day.
• It means that cost of using 1 unit of electricity will be
different in mornings, noon, evenings and nights.
• This means that using appliances during certain time
of the day will be cheaper than using them during
other times.
• TOD is already practicing in India for HV installation,
industries & large commercial installations
• Gov. Should extend to other installation India for all
types of load.
Demand side management
2. Apparent energy tariffs
• kVAh metering is a concept to replace the
conventional kWh metering. It suggests that
consumers must be billed as per the kVAh
(apparent energy) drawl, and not as per the kWh
(active energy).
• Implementation of the concept will mean that at
each consumer premise a new type of meter will
have to be installed, one which records kVAh.
• Apparent energy, which is kVAh, contains a
component called reactive energy (kVArh)
whose generation is not directly related to
conversion of energy resources.
• This reactive energy component may be
necessary to support delivery of active energy,
but it is not useful to the end consumer for
conversion to any active work or output.
• Hence it may be said that apparent energy
(kVAh) is not a commodity that the user wants
to use and nor it is a commodity that
transporters (i.e. distribution companies)
transfer from generating stations.
Demand side management
• Electricity is metered to meet two objectives (i)
To account for active energy transmittals, that is,
energy accounting (ii) For commercial metering,
that is, to make a consumer pay for the electricity
that they consumed.
• There needs to be accounting at every stage, and
hence kWh is accounted for, right from the
generating stations, through the transmission and
distribution lines, and as delivered to end
consumers, through the present kWh meters.
• All this is not possible if kVAh meters were used.
ROLE OF RENEWABLE ENERGY
SOURCES IN ENERGY MANAGEMENT
• Why use renewables?
Types of RE
– Renewable Energy Sources types
• Radiant solar energy
– Solar heating (passive and active), solar power plants, photovoltaic cells
• Biomass energy
– Direct: combustion of biomass
– Indirect: chemical conversion to biofuel
• Wind energy
• Hydro energy
• Geothermal energy
– Power plants, direct use, heat pumps
• Ocean energy
– Tidal
Disadvantages
• Inefficient (only 30%
efficiency).
• Releases harmful solid
carbon particles into
the atmosphere.
What is it?
• Biomass, is a
renewable
energy source
made of
biological
material from
living, or recently
living organisms.
• Energy is
released by
combustion
(burning).
Advantages
• Produces less pollution
than fossil fuels.
• Does not cause acid
rain.
• Can be found locally.
• It is renewable.
Disadvantages
• Lots of wind turbines
are needed to produce
enough power.
• Turbines can only be put
in windy areas.
• It is not always windy.
• Some people don’t like
the look of the turbines.
What is it?
• Wind turbines
are used to
generate
electricity from
the wind.
• The wind turns
the large blades
and the blades
turn a generator.
Advantages
• Wind is renewable.
• Wind is free.
• No greenhouse gases are
made.
• There are few safety risks.
Disadvantages
• Solar panels are
expensive.
• When it is cloudy or at
night there is not enough
light.
• Some people don’t like
the look of solar panels.
What is it?
• Solar power
uses energy
from the
Sun.
• Solar panels
transfer the
Suns energy
to heat
water.
Advantages
• The energy from the Sun
is free.
• The sun does not produce
greenhouse gases.
• The sun will always be
there during our lifetime.
Disadvantages
• Solar cells are
expensive.
• They take up lots of
space.
• They only work in Sun
light
What is it?
• Solar cells
use energy
from the Sun.
• Solar panels
transfer the
Suns energy
directly into
electricity.
Advantages
• The energy from the Sun
is free.
• The sun does not produce
greenhouse gases.
• The sun will always be
there during our lifetime.
Disadvantages
• There are not many places
where we can build
geothermal power stations.
• Harmful gases and minerals
may occasionally come up
from the ground below.
These can be
• difficult to control.
What is it?
• Rocks under
the ground
are hot.
• Water can
be pumped
through
these hot
rocks and
warmed up.
Advantages
• Geothermal energy does
not produce greenhouse
gases.
• The energy source is free
and will not run out.
Disadvantages
• The dam is expensive to build.
• By building a dam, the nearby
area has to be flooded and
this could affect nearby
habitats.
• If it does not rain much we
may not have enough water
to turn the turbines.
What is it?
• Flowing
water is
used to turn
a turbine
which
generates
electricity.
Advantages
• When the electricity is
generated, no greenhouse
gases are made.
• The water used is free.
• It is a renewable energy
source.

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Demand side management

  • 1. DEMAND SIDE MANAGEMENT By- Assi. Prof. SHIVRAJ N NALAWADE Electrical Engineering Dept. NBNSSOE
  • 2. Supply side management: • Supply-side management (SSM) refers to actions taken to ensure the generation, transmission and distribution of energy are conducted efficiently. • This has become especially important with the deregulation of the electricity industry in many countries, where the efficient use of available energy sources becomes essential to remain competitive. • Utility companies may look at means of modifying their load profile to allow their least efficient generating equipment to be used as little as possible. • Why it is necessary? – To Ensure sustained availability of reliable energy – To Meet increasing electricity demand – To reduce environmental impact of energy production and supply *Important point-There is balance between supply & demand side.
  • 3. Supply side measures Simplified electricity supply chain
  • 4. • Resources and resource preparation 1.Clean coal technology 2.Fuel substitution • Power generation and energy conversion 1.Proper maintenance 2.Data and performance monitoring 3. Combustion control 4.Upgradation of generation unit • Transmission and distribution 1.Transmission lines 2.Data monitoring and control 3. Load aggregation 4. Facts
  • 5. Up gradation of generation units • Upgrading generating units can improve reliability, increase output and reduce environmental impacts from electricity generation. • Typical improvements are the installation of new and improved burners, extra flue gas heat recovery, additional heat recovery from hot blow down water, as well as modernization of instruments and combustion control systems. • For very old power plants, it may be justified to replace the old equipment completely with a new generation plant designed and built to the best modern efficiency standards.
  • 6. • There are a large number of possible measures to adopt to raise the operating efficiency of an existing power plant. • Implementation depends on the type of plant, the technology currently used, the level of maintenance, and many such factors that are site-specific. • It is therefore impossible to estimate the potential improvements without a careful analysis of the actual plant and the costs involved. • However, it is possible to make very rough estimates of the typical range of figures that might be encountered in practice.
  • 8. Load aggregation • Electric load aggregation is the process by which individual energy users band together in an group to secure more competitive prices that they might otherwise receive working independently. • Benefits- • 1. Increased Buying Power-Through load aggregation, companies can enhance their purchasing power by taking advantage of load diversity among multiple facilities as a means of improving the overall load factor of the group. • 2.Improved Load Factor-Load factor is the ratio of electricity consumption to peak demand (expressed as a percentage) for each billing period. • A high load factor means power usage is relatively constant and it is beneficial to utility because the billing is done on basis of maximum demand.
  • 9. FACTS devices • This offers ways of attaining an increase of power transmission capacity at optimum conditions, i.e. at maximum availability, minimum transmission losses, and minimum environmental impact. Plus, of course, at minimum investment cost and time expenditure. • Important devices power transmission involving FACTS and Power Quality devices: • SVC (Static Var Compensators), • Thyristor-Controlled Series Capacitors (TCSC) and Statcom. • PST (Phase-shifting Transformers), • IPC (Interphase Power Controllers), • UPFC (Universal Power Flow Controllers), • and DVR (Dynamic Voltage Restorers).
  • 10. Generally FACTS controllers are classified as:  Series Controllers  Shunt Controllers  Combined Series-Series Controllers  Combined Series -Shunt Controllers TYPES FACTS CONTROLLS Ar ea 1 Ar ea 2 Ar ea 1 Ar ea 2 Series FACTs device Shunt FACTs device Bus 1 Bus 2 Bus 1 Bus 2 powerpower Figure 3 Two-area power system with series FACTS device Figure 4 Two-area power system with shunt FACTS device receiving end Sending end receiving endSending end
  • 11. Facts are available in • Shunt compensator 1. Shunt capacitive compensator- for PF improvement of line. 2. Shunt inductive compensator-for charging the transmission line or used when there is very low load at receiving end.
  • 12.  The Static VAR(variable reactive) Compensator (SVC) is one of the shunt connected FACTS devices, which is based on power electronics.  It helps in : 1.voltage regulation, 2.reactive power control and improving the transient stability of the system.  The voltage regulation by SVC is done, by controlling the amount of reactive power injected into or absorbed from the power system. STATIC VAR COMPENSATOR (SVC) Figure 5 SVC structure
  • 13. Types of common SVCs are • Thyristor –controlled reactor(TCR) • Thyristor –switched reactor(TSR) • Thyristor –controlled capacitor (TCC) • Thyristor –switched capacitor (TSC) • Mechanically switched capacitor/ reactor(MSC/MSR)
  • 14. • Series compensator-used for insertion of reactive power element in transmission lines. • 1. fixed series capacitors(FSC) • 2.thyristor controlled series compensation • A. thyristor controlled series capacitor(TCSC) • B. thyristor controlled series reactor(TCSR) • C. thyristor switched series capacitor(TSSC) • D. thyristor switched series reactor(TSSR)
  • 15. SSM Constraints and Challenges • Need of comprehensive information • Balance between supplier and consumer • Short term approach • First cost decision making • Lack of technical expertise
  • 16. Demand Side management • It is also called as Energy Demand Management. • The modification of consumer demand for energy through various methods such as financial incentives and education is termed as Demand Side Management. • The main goal of demand side management is to encourage the consumer to use less energy during peak hours, or to move the time of energy use to off-peak times such as night time and weekends.
  • 17. • Definition - DSM (Demand Side Management) is the 'Scientific control of usage and demand of Electricity, for achieving better load factor and economy, by the Licensee/Supplier'.
  • 18. Benefits of Demand Side Management • Customer Benefits Utility Benefits Social Benefits Satisfy electricity demands Lower cost of service Reduce environmental degradation Reduce / stabilize costs or electricity bill Improve operating efficiency, Flexibility Conserve resources Maintain/improve productivity Improve customer service Protect global environment 18
  • 19. The barriers for DSM • i) Monopoly power market structure. • ii) No competition which leads to traditional and inefficient tariff structure. • iii) Lack of creating awareness among consumers about the efficient use of energy. • iv) Lack of energy efficient environment. • v) Huge gap between supply and demand of energy. • vi) Lack of proper incentive schemes to consumer on using energy efficient appliances and utility to implement DSM solutions. • vii) Power system reliability, quality and stability is not able to keep itself in standard position.
  • 20. *Initiative from the consumer side is very important for successful DSM • The scope of DSM includes 1. Load shifting/ Load management 2. Energy conservation 3. Increased electrification 06-Mar-17 20 Implementation of DSM
  • 22. 1. Develop end-use Demand forecasting • Forecasting by end-use is an essential pre- requisite for effective DSM planning and implementation. • Mid- and long-term forecasts of power demand variations play a very important role in the development of a DSM programme. • Demand forecasting is an exercise that every electricity-generating company should carry out regularly in order to assess its future equipment requirements. 06-Mar-17 22 Planning & Implementation of DSM
  • 23. 2. Undertake Load/ Market Research to identify end-use patterns and market barriers • To design effective DSM programmes it is important to know how electricity is used and what barriers are preventing customers from using efficient technologies. • Load research should be undertaken to estimate load curves for each sector or region, using local sub-metering, customer bill analysis and customer surveys. • Major areas of interest to DSM programmes include the residential, commercial, industrial, and public utility sectors. • Market research is needed to understand the target market, identify barriers and evaluate possible solutions. 06-Mar-17 23 Planning & Implementation of DSM
  • 24. 3. Define load-shape objectives 06-Mar-17 24 Planning & Implementation of DSM •Reduction in peak demand •Controlling the equipments •Controlled tariff rate •Increasing load during off peak hours •Building off peak loads •Demand shift to off peak •Shift peak load to off peak hours •Popular applications include use of storage water heating, storage space heating, and coolness storage. Peak Clipping Valley filling load shifting
  • 25. 3. Define load-shape objectives 06-Mar-17 25 Planning & Implementation of DSM •The reduction of utility load, more or less equally, during all or most hours of the day •Non traditional approaches to load management •The INCREASE of utility load •Load-shape change which refers to overall increase in sales •The interruptible agreements by utility to alter customer energy consumption on an as-needed basis Strategic conservation strategic growth flexible load shape
  • 26. 4. Identify target sectors, end-uses, and measures • The collected information is normally useful in determining a typical load curve for each end- use. • Find out load-curve management objectives • Choose sectors and end-uses that account for the largest power consumption and peak loads, or will do so in the future. • Select DSM measures which will have the largest impact on peak demand and electricity use. 06-Mar-17 26 Planning & Implementation of DSM
  • 27. 5. Identify sources of financing • In any DSM programme, financing is needed for individual projects undertaken by participants. • Utilities may also require financing to cover administrative costs and cost sharing investments. • Government/public fund is required. 06-Mar-17 27 Planning & Implementation of DSM
  • 28. 6. Review Cost Sharing and Viability Options • Cost sharing in a DSM programme should try to maximize viability for each partner (participant, utility, and government). • The wider the differences between tariffs, the higher the utility investment can be, which in turn leads to a higher participation rate. 06-Mar-17 28 Planning & Implementation of DSM
  • 29. 7. Programme Selection and Design • Identifying a list of programmes for each customer class. • Formation of brief report corresponding to that program • Uniform reporting format is required. 06-Mar-17 29 Planning & Implementation of DSM
  • 30. 8. DSM Cost/Benefit Analysis • Based on the case study /measurement • Calculation of financial interest 9. Identify Local Socio-Economic and Environmental Impacts • Most DSM programmes provide indirect economic and environmental benefits as well as reducing emissions and other impacts from power supply facilities. • Eg. employment is created in the energy services industry 06-Mar-17 30 Planning & Implementation of DSM
  • 31. 10. programme Implementation Plan • Implementation of any DSM programme requires a core DSM staff or “cell” within a power utility to develop a plan. • For the programme and manage its implementation, even if consultants are hired for both aspects of the programme. 06-Mar-17 31 Planning & Implementation of DSM
  • 32. demand side management in agricultural • Why DSM need in agriculture? • Agriculture accounts for about 27% of electricity consumption in the country, which is increasing due to rural electrification efforts of the Government. • The electricity is largely used in agricultural pump sets which generally have very poor efficiency. Most of the pilot projects as well as other studies project potential of 45-50% by mere replacement of inefficient pumps. Overall electricity savings (from 20 million pumps) is estimated at 62.1 billion units annually
  • 33. • The energy consumption is high due to- • 1.improper selection and installation • 2.use of high friction piping • 3.Lack of proper maintenance • Options for improvement- • 1.Remove of unnecessary pipe lengths • 2. Remove of unnecessary bends • 3.replacement of GI pipe with PVC pipe • 4. capacitor bank for PF improvement • 5. do regular maintenance
  • 35. DSM in residential sector • Residential electricity consumption contributed to about 25% of total electricity in India. • The main areas of consumption are • 1.lightning • 2.celling fan • 3.television • 4.refrigeration • 5.air conditioners
  • 38. DSM in commercial sector • The main areas of consumption are lightning refrigeration air conditioners Ventilation Heating Water heating
  • 41. DEMAND MANAGEMENT THROUGH TARIFFS (TOD) • In India, Time of Day (TOD) tariff that was used mostly for industrial sector is now slowly being introduced for commercial sector as well. • if you have an office or own a small business, this change in tariff can surely impact your electricity bill. It may present a chance to you to reduce your bill by altering the way you consume electricity in your office. • Tariff structure: 1.time of day tariff 2.PF incentive & penalty/ reactive power charges.
  • 42. 1.Time Of Day (TOD) pricing • Time of Day (or TOD) tariff is a tariff structure in which different rates are applicable for use of electricity at different time of the day. • It means that cost of using 1 unit of electricity will be different in mornings, noon, evenings and nights. • This means that using appliances during certain time of the day will be cheaper than using them during other times. • TOD is already practicing in India for HV installation, industries & large commercial installations • Gov. Should extend to other installation India for all types of load.
  • 44. 2. Apparent energy tariffs • kVAh metering is a concept to replace the conventional kWh metering. It suggests that consumers must be billed as per the kVAh (apparent energy) drawl, and not as per the kWh (active energy). • Implementation of the concept will mean that at each consumer premise a new type of meter will have to be installed, one which records kVAh.
  • 45. • Apparent energy, which is kVAh, contains a component called reactive energy (kVArh) whose generation is not directly related to conversion of energy resources. • This reactive energy component may be necessary to support delivery of active energy, but it is not useful to the end consumer for conversion to any active work or output. • Hence it may be said that apparent energy (kVAh) is not a commodity that the user wants to use and nor it is a commodity that transporters (i.e. distribution companies) transfer from generating stations.
  • 47. • Electricity is metered to meet two objectives (i) To account for active energy transmittals, that is, energy accounting (ii) For commercial metering, that is, to make a consumer pay for the electricity that they consumed. • There needs to be accounting at every stage, and hence kWh is accounted for, right from the generating stations, through the transmission and distribution lines, and as delivered to end consumers, through the present kWh meters. • All this is not possible if kVAh meters were used.
  • 48. ROLE OF RENEWABLE ENERGY SOURCES IN ENERGY MANAGEMENT • Why use renewables? Types of RE – Renewable Energy Sources types • Radiant solar energy – Solar heating (passive and active), solar power plants, photovoltaic cells • Biomass energy – Direct: combustion of biomass – Indirect: chemical conversion to biofuel • Wind energy • Hydro energy • Geothermal energy – Power plants, direct use, heat pumps • Ocean energy – Tidal
  • 49. Disadvantages • Inefficient (only 30% efficiency). • Releases harmful solid carbon particles into the atmosphere. What is it? • Biomass, is a renewable energy source made of biological material from living, or recently living organisms. • Energy is released by combustion (burning). Advantages • Produces less pollution than fossil fuels. • Does not cause acid rain. • Can be found locally. • It is renewable.
  • 50. Disadvantages • Lots of wind turbines are needed to produce enough power. • Turbines can only be put in windy areas. • It is not always windy. • Some people don’t like the look of the turbines. What is it? • Wind turbines are used to generate electricity from the wind. • The wind turns the large blades and the blades turn a generator. Advantages • Wind is renewable. • Wind is free. • No greenhouse gases are made. • There are few safety risks.
  • 51. Disadvantages • Solar panels are expensive. • When it is cloudy or at night there is not enough light. • Some people don’t like the look of solar panels. What is it? • Solar power uses energy from the Sun. • Solar panels transfer the Suns energy to heat water. Advantages • The energy from the Sun is free. • The sun does not produce greenhouse gases. • The sun will always be there during our lifetime.
  • 52. Disadvantages • Solar cells are expensive. • They take up lots of space. • They only work in Sun light What is it? • Solar cells use energy from the Sun. • Solar panels transfer the Suns energy directly into electricity. Advantages • The energy from the Sun is free. • The sun does not produce greenhouse gases. • The sun will always be there during our lifetime.
  • 53. Disadvantages • There are not many places where we can build geothermal power stations. • Harmful gases and minerals may occasionally come up from the ground below. These can be • difficult to control. What is it? • Rocks under the ground are hot. • Water can be pumped through these hot rocks and warmed up. Advantages • Geothermal energy does not produce greenhouse gases. • The energy source is free and will not run out.
  • 54. Disadvantages • The dam is expensive to build. • By building a dam, the nearby area has to be flooded and this could affect nearby habitats. • If it does not rain much we may not have enough water to turn the turbines. What is it? • Flowing water is used to turn a turbine which generates electricity. Advantages • When the electricity is generated, no greenhouse gases are made. • The water used is free. • It is a renewable energy source.