1. Demand Side Management
Emerging Trends
Including Smart Grid initiatives
BRPL, DELHI

2. BSES Delhi Discoms – A Synopsis
NDPL
Reliance Infrastructure Ltd. acquired 51% stake in July 2002 in two Discoms
BYPL
BRPL
MES
NDMC SN
Particulars
Unit
BSES Delhi Discoms 1
Area
sq. km
750 2
Total Registered Customers
million
1.72 3
Peak Demand MW
2068 4
Consumption per year MU
10,500 5
Employees ( Regular)
Nos.
4000 6
Customer Density
Cons/sq km
2,300 7
Turn Over
Rs. Crs.
6700

3. Smart Grid Initiatives Technological innovations
The customers expectations and DISCOM concerns revolve
around Cost of supply, Reliability and Quality of supply and
services to Consumers.
Cost of
Supply
Customer
Services
Reliability
of Supply
Quality
Smart Grid Initiatives
Technological innovations
Involve
Consumers
Supply availability and reliability can be solved by involving consumer - DSM

4. BSES Philosophy – Understanding DSM
It can be done by ………….
Reduction of load at peak
&
By shifting/ adding load
When energy is surplus.
Philosophy ………..
Tuning consumer load.
To ensure optimum utilization
of deliverable energy.
DSM is by the Consumer, for the Consumer. So, their Involvement is must.
Online comprehensive & user-friendly platform to customers for gathering information and submitting queries and complaints
GAP and NON availability in grid – BIG Concern

5. Defining Peak………. Key Terms Absolute peak Relative peak Power Shortage
Generation Capacity
Risk Of Shortage
Load Curve
Under Utilization
Key Terms
Absolute peak
Relative peak

6. Increase Generation or DSM…….. to cater increase in Incremental Peak
Input Growth of Delhi
Increase Generation or DSM……..
to cater increase in Incremental Peak

7. What are the Concerns
The peak demand is growing every year…….. This means more PPA and power purchase tie up
Ratio of peak demand and energy consumption is not moving in favorable direction……….. More energy available for sale during non peak
RPO …… Such PPA may not help in meeting peak demand
The average cost of electricity is going up, as shortage during peak and surplus during non peak
Peak and non peak affecting electricity quality
Not able to amend long term PPA

8. Typical BRPL Peak curve

9. So there is a need to flatten the load curve
Need of Hour
So there is a need to flatten the load curve 9

10. Additional generation
DSM methods …….
Energy Conservation
Demand Shift
Consumer Load Control
Energy Source shift
Input control
Factor need Considerations:
Impact during lean period
Cost of Investment and ROI
Ensuring consumer involvement
Additional generation
is not DSM

11. BRPL Green Club in line with DSM philosophy for consumers
DSM Initiatives – Emerging Trends
Load control
Demand response
Legislation about efficiency
Tariff
Green Club
Awareness
Consumer display
Google Power meter
ESCO Services
DSM Emerging Trends
Energy Conservation
ESCO services
Alternate fuel
Efficient product
Tariff
Technology
Smart Grid
Role of voltage
Technical loss reduction
Energy storage
Single stage privatization -No stabilization time for Discoms
BRPL Green Club in line with DSM philosophy for consumers

12. Energy conservation, Tariff & storage are basic steps
DSM Key Initiatives
Awareness
Consumer display
Google Power meter
Load control
Demand response
Green Club
Smart Grid
Facilitate DSM
Few
Key initiatives
Energy Conservation
Technical loss reduction
Legislation about efficiency
Technology
Role of voltage
Single stage privatization -No stabilization time for Discoms
Energy conservation, Tariff & storage are basic steps

13. Consumer Awareness
Awareness
The basic need for DSM
Awareness about need of DSM
Awareness about own consumption pattern
Cpower a leading display
company, claims 15%
Consumption reduction
Trend
Involvement of society – initiation by Regulator
Portable/ web base display about pattern
In Britain – legislation about meter with display
Consumer can log onto
Power Meter
Gmail ID and password
is required
Methodology
Awareness program arrange by NGO/ Universities.
cost of awareness – highly subsidized by Govt.
BRPL, Reliance Group
company installed Google
meters for trial.
In 2007, CFL promotion was highly successful. Still RWA demand for it

14. Customer Interactive Display – Google Power Meter
Real Time energy flow
Weekly energy consumption
Smart Grid technology promotes consumer involvement through data sharing

15. Demand Response BRPL DR Program
Facilitator to coordinate DR
Capacity 25 MW
Availability …… 100 Hrs/ year
Typical cost 4.75Rs/ KWh .
Only for volunteers
incentive for consumers.
Response time Mins
Demand response (load response) is “reduction of electricity use by end-use customers in response to power grid needs, economic signals from a competitive wholesale market or special retail rates”
Provide opportunities for end-use customers to realize value for reduction in demand
Demand response can compete equally with generation markets

16. Demand Response Why becoming popular
It is a virtual generation system – Most environment friendly.
100% contribute when network is on stress. A true peak curtailing mechanism
Leads towards energy Conservation. Consumer become knowledgeable as how to reduce consumption.
Totally Volunteers based
Demand response cannot be compared with load shedding
DR helps in reducing peak technical loss
DR need policy support
Can DR Negawatt can be compared with renewable energy = DR obligation

17. Green Club – Demand Response extension
A retrofit devise to control load remotely or based on logic
Only for volunteers – for medium load consumers
Disconnection of non essential loads – on demand
Once Smart Grids are installed – easy to carry Green club

18. Green Club – Demand Response Extension
Application – Non essential load
Pumping motors
Gallery lights
Advertisement lights.
Air conditioners. ( few places).
Applications - Man less load
Communication tower
Man less pumping stations – Railway, DJB
Charging of battery can also
be stopped using these device
Load can also be limited
Over riding facility
Alarm facility
It can be programmed so as during need – one cannot switch
ON the identified load
Online comprehensive & user-friendly platform to customers for gathering information and submitting queries and complaints
Communication towers load can be
switched Off during need as
they have inverter
Man less pump station at DJB
or Railway can be both operate
and Control through the device
Control of battery charging is an other application

19. Stand by load consumes substantial power
Legislation about efficiency
Following load need review
Non efficient – Alternate efficient load are available
Load which impact technical loss or stress the network
Load type critical during peak
Stand by load consumes substantial power
Efficiency
Minimum efficiency
level to be defined e.g.
Standby mode 2 W
Parameters
Associated parameters
to be controlled e.g.
PF of CFL 0.85
Review
Technology those can
be called as luxury –
Neon v/s LED

20. Technical loss Reduction
It is un-avoidable but can be curtailed
Has maximum impact during peak load
Consumer load type also affect the technical loss
If In India Avg Technical loss is 10% - what about at peak ??
Consumer load
Load type affects
the technical loss
Typical load
Power Pf
Unbalance - traction
High harmonics
Review
To control typical load
Investment – renewable
v/s technical loss

21. DSM Emerging trend - Voltage control
Principal
Typical consumer voltage 220 ~ 230V.
The allowable tolerance – +/- 6%
Wattage consumption depends upon voltage
By controlling instantaneous voltage – consumption in MW can be controlled

22. Typical thumb rule – 1% V effects 1.3% power consumption
Voltage control – Use of smart grid
Principal
Check consumer voltage at tail end - online
Compare with allowable range
Remotely manage tap position to control voltage
Typical thumb rule – 1% V effects 1.3% power consumption

23. DSM need support in terms of Policy Technology
Involvement of consumers
Finance
Smart Grid Facilitates DSM
Key question is investment in generation or in DSM

24. Thank You
Contact detail: . Rajesh Bansal , Mobile

25. Schemes – Selection criteria
ROI on investment – DESCOM & Consumer.
For DESCOM, ROI against any investment can be possible if and only if their is peak load reduction.
There are many schemes where consumer will have attractive ROI but DISCOM will be in loss. (Reduction of load during non peak hours).
Incase DISCOM has surplus energy than ROI is question mark.
Ideally energy conservation means :
Reduction in consumption but may have Slight
increase in tariff/ cost however - over all saving
to consumers. Benefit to society