Demand Side Management-05!03!2013

100000

Peak Normal

E L E C T R I C I T Y - P E A K D E F I C I T

8 0 6 3 1 M W

9 . 1 %

P E A K D E F I C I T - 9 . 1 %

8 8 6 6 7 M W

G e n e r a t i o n D e m a n d

Billion un

ELECTRICITY - NORMAL DEFICIT

7 . 4 %

N O R M A L D E F I C I T - 7 . 4 %

4 1 1 . 7

3 8 1 . 4

D S M A I M STo minimize the Cost of Generation,

Transmission & Distribution of

ElectricityTo meet Customer Energy Needs

a) always without Quality Deterioration

b) at Lowest Possible Cost

• Proper Scheduling of Operation

• Shifting of Peak Hour Operation to

non - Peak Hour Operation wherever

feasible

• Possible Elimination of Operation

altogether

A c h i e v e d t h r o u g h

I N S H O R T

J a n - S e p 0 6

1 2 2 4

1 1 5 0

1 2 0 0

1 1 6 8 1 1 8 4

1 1 8 4 1 2 1 6

J a n F e b M a r A p r M a y J u n J u l A u g S e p

M o n t h

1 0 5 0

1 4 0 0 C D

A c t u a l

C o n t r a c t e d / M a x i m u m R e a c h e d / M o n t h l y A v e r

4 01 2

M o n t h

1 0 5 0

1 4 0 0 C D

M o n t h A v g

M D R e a c h e d

176213239162280 265237

219192

J a n F e b M a r A p r i l M a y J u n e J u l y A u g Sep

1 150 1 200 1 140 1 168 1 184 1 184 1 216

M A X I M U M vs A V E R A G E k V A

( m a x - a v g )

Max / Avg 1.20 1.22 1.26 1.29 1.30 1.15 1.24 1.21 1.16

X X X X X

1 240 1 224

M o n t h

k V A C H A R G E S

4 . 2 1 0 0 % CD

A c t u a l P a i d

Payable as per Consumption

3 . 9 1

O U T C O M E

• Study Period : O c t 5 - 2 4 h O c t 8 to 1 0 - 4 8 h

D A T A A N A L Y Z E D O N 2 M O D E S

( i ) I n s t a n t a n e o u s ( i i ) 3 0 m i n s A v e r a g e ( T N E B S c h e d u l e )

S T U D Y P A R A M E T E R S 1 V o l t a g e 2 C u r r e n t 3 P F

4 k V A 5 P o w e r

V O L T A G EV

Day Colour

D a y L o w H i g h A v g S D

1 2 4 3 . 0 2 4 7 . 0 2 4 5 . 0 1 . 0 1 6

2 2 4 4 . 1 2 4 8 . 0 2 4 5 . 7 0 . 8 3 4

3 2 4 3 . 7 2 4 7 . 3 2 4 5 . 6 0 . 9 4 2

A N A L Y S I S

I N F E R E N C E 1 V o l t a g e V a r i a t i o n - L i m i t e d 2 G o o d Q u a l i t y P o w e r

500018

C U R R E N T A

4 4 6 9

3 2 9 2

Day Colour

1 3 3 8 5 4 2 6 5 3 9 5 0 2 1 8

2 3 2 9 2 4 4 6 9 4 0 7 9 2 3 8

3 3 3 8 1 4 4 1 4 4 0 5 2 2 2 2

A N A L Y S I S

1.0018

P O W E R F A C T O R P

0 . 9 9 7

0 . 9 7 7 2Day Colour

1 1 . 0 0 1 . 0 0 1 . 0 0 0 . 0 0 1 6

2 0 . 9 9 1 . 0 0 0 . 9 9 0 . 0 0 2 2

3 0 . 9 9 1 5 0 . 9 9 6 7 0 . 9 9 4 5 0 . 0 0 1 5

I N F E R E N C E 1 A P F C is working satisfactorily2 Power Factor - Leading Occasionally

A N A L Y S I S

P O W E Rk

1 0 8 7

T i m e

Day Colour

1 8 2 8 . 0 1 0 3 4 . 0 9 6 4 5 3 . 3 8 7

2 8 0 4 .7 1 0 8 7 . 3 9 9 6 . 6 3 5 8 . 9 2 5

3 8 2 2 . 6 1 0 8 1 . 0 9 9 0 . 2 9 5 4 . 7 5 4

A N A L Y S I S

120018

k V A - A C O N S O L I D A T I O N

1 0 9 0

T i m e

Day Colour

1 8 3 3 1 0 4 2 9 6 9 5 3

2 8 1 3 1 0 9 0 1 0 0 1 5 7

3 8 2 8 1 0 8 7 9 9 5 5 4

A N A L Y S I S

963 97

9 991 10

03 1015

988 10

1007 1012

110018

L o w 8 3 3H i g h 1 0 4 2A v g 9 6 9S D 5 3

k V A - D a y 1

T i m e

1003 10

976 99

1013 1019

1058 1066

1020 10

959 918

k V A - D a y 2k

L o w 8 1 3H i g h 1 0 9 1A v g 1 0 0 1S D 5 7

T i m e

993 10

81 1087

980 989

990 10

5 979 10

00 1009 1017 1025

973 98

1037 10

968 99

k V A - D a y 3

L o w 8 2 8H i g h 1 0 8 7A v g 9 9 5S D 5 4

T i m e

D a y 1

V A R I A T I O N O F ( I N S T A N T A N E O U S & ½ H O U R A V E R A

G E )K V A v s T I M E

881 91

963 97

9 991 10

03 1015

988 10

9 996 10

15 1038

998 10

16 1042

875 90

093497

Min Max Average S D

6 9 7 1 1 9 2 9 7 0 8 5

Min Max Average S D

8 3 3 1 0 4 2 9 6 9 5 3

1014 10

44 1076

976 99

6 1025

965 10

872 89

996 10

0 1015

1020 10

919 95

G E )K V A V S T I M E D a y 2

Min Max Average S D

6 7 3 1 1 8 8 9 9 9 8 7

Min Max Average S D

8 1 3 1 0 9 1 1 0 0 1 5 7

D a y 3

G E )K V A V S T I M E

1006 10

45 1081

990 10

5 979 10

2 1012 10

48 1076

995 10

37 1063

968 99

5 1033

Min Max Average S D

7 4 4 1 2 6 1 9 9 5 8 2

Min Max Average S D

8 2 8 1 0 8 7 9 9 5 5 4

8 1 37 4 4

1 2 3 4

k V A - A C o m p a r i s o n I N S T A N T v s 3 0 m i n A V G

1 1881 090

1 0871 192

1 2 3 4

I N F E R E N C E S1 Sizable Variation in k V A During Lunch, Tea & Shift Changeover Time

l t t tl t l t t

2 Significant Impact on kVA ( 09 : 00 h - 11 : 30 h )

120018

3 Among all shifts, kVA drop in 3rd shift’s lunch time is quite pronounced

P r o g r a m m e S u m m a r y

Programme Overview

Introduction of energy efficient lighting and other devices to public sector and institutional customers

Programme Objectives

/ Goals

To promote DSM as the least cost and most beneficial way of providing reliable electricity

Programme Design

and Implementation

Strategy

Utility driven programme Guaranteed 3-year cost recovery of up-front costs Customers were given option of borrowing full up-front cost through the utility’s Conservation Loan lending Facility

U S E X P E R I E N C E - 1

Programme Results

Energy Savings: 1,700,000 MWh at various stages of development

Lifecycle Savings: 1.39 million MWh Demand Savings: 14.2 MW per year

Key lessons learned

It is possible for a utility to very quickly “ramp” up an aggressive DSM programme

Actual payback estimated to stretch up to 4-6 years Actual customer savings (25% to 35%) were significantly lower than initial utility’s proclamation

(50 % to 75 % ) Avoid shortage of key lighting equipment and components (e.g., ballast)

U t i l i t y C h a r a c t e r i s t i c sUtility Name New York Power Authority (NYPA)

Utility characteristic State-owned

utility

Mandated by the state to supply New York State with lower-cost electricity

Customers includes designated companies and state government facilities and the investor-owned utilities

which resale power without profit to their customers Owns generation and certain transmission assets Number of customers – 166 Energy Sales – 36.200 million MWh Energy Sales Revenue – US$872 million Net rated output – 6,875 MW

Phase inRestructuring State-owned utility

D S M Initiatives

DSM initiatives are a central part of the utility’s strategic planBudget for energy efficiency programs is about US$100 million annually

U S E X P E R I E N C E - 2

P r o g r a m m e D e s i g n

ProgrammeDescription

Cash incentives / options programme offered to customers interested in implementing energy

efficient lighting and other devices in public sector and institutions

Eligibility of customers for cash incentives is established by a facility review or an energy audit conducted at the site for the purpose of identifying energy saving package which would become the basis for an action Plan

Programme Goals

To promote DSM as the least cost and most beneficial way of providing reliable electricity under its mandate

Customer / Market

Characteristics

Primarily targeted lighting in government (state) and other public / semi - public institutional customers in southeastern New York

Scope expanded to include HVAC and drive power technologies

Opened out to participants from public school sector in Long Island

DSM Measures(Technology /Management)

Fluorescent lamps Electronic ballasts Specular reflectors CFLs High efficiency discharge lamps (HIDs) Photocells Occupancy sensors Converted exit sign lighting from incandescent to

CFL HVAC upgrade measures were made available in

March 1992

Types of incentives Guaranteed cost recovery Concessionary financing Full service implementation

DSM marketingStrategy

“Glossy, powerful brochure” Multimedia (diskette, video, etc) Personal communication at high level (NYPA Chairman visits large customers)

ImplementingOrganization

NYPA with oversight over private Implementation Contractors that bid for contracts to perform

audit, design and oversee retrofits Subcontractors that perform the installations NYPA handled certain smaller projects internally

Projected Savings

Programme Period 1990 to 1992: Implemented over a period of three years when it was

launched in 1990 and terminated in 1992 Energy Savings: 151,647 MWh Demand Savings: 30.9 MW

P r o g r a m m e R e s u l t s

No of Participants Data Not available

Savings 5 0 5 4 9 M W h / y

Cumulative Savings 1 5 1 6 4 7 M W h3 0 . 9 M W

Programme Costs U S D 5 5 3 4 2

P r o g r a m m e B e n e f i t s

Benefit to theCustomers, Benefit to

the utility, Otherbenefits, Cost of

energy saved

Reduced customer’s cost of electricity Provided Low cost CFLs to customers Peak load reduced, fostered customer relations Contributed environmental benefit to society 4.26 Cents / kWh at 9 % real discount rate

Demand Side Management-05!03!2013

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