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Emergency Load management with Demand Response(DR)

Scheduling and Load Management

DR is additional emergency tool.

Long term contracts

Short term

Exchange

DR

Normal power requirement

Short term through trader

Daily deficits are met through exchange.

DR is voluntary load curtailments by large I & C consumers during peak hours when requested by Utility in order to create a curtail able capacity

during high demand months.

Utility is prevented from sourcing high cost short term power which consequently impacts customers through higher tariffs

NOC for ADR

ALERTCREATES DR

EVENTSE

ND

S D

R

EVEN

T TO

C

ON

TRO

LLER

NON CRITICAL LOAD SHED

INDUSTRY/ COMMERCIAL ESTABLISHEMENT

NORMAL

SCENARIOGRID

STRESS

Demand Response Server

Ev

en

t

No

tific

atio

n

NON CRITICAL LOAD SHED

Utility

Operator

ADR - EVENT

Salient Features of the Project

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Project Components include : Automated Demand Response

infrastructure including DR server and sitecontrollers

Smart Meters RF Mesh based Communication MDMS and its integration with other OT &

IT systems like OMS, SAP, ADR

Collaborative partnership withselected vendors

First Utility initiated AMI based ADR program in the country

Project approved by Regulator

Project Objectives: To manage peak demand To manage Grid Stress situations

Project being undertaken to demonstrate: Technological capability Understand customer behavior Case study for regulator to work on

differential tariffs and financial incentives. Processes required for scaling up

5 5Author:

Salient Features

• RF Mesh network spread over an area of approx. 250 Sq km.

• 4 hour Advance intimation to the consumers in case of a scheduled DR event with opt out option through return SMS/Email.

• Near Real time 15 min granular data transmission of 15 min load interval data to TPDDL data acquisition system

• Real time intimation to consumers in case of violation of set thresholds with regards to Low PF and Load

• Advanced customer portal for providing granular 15 min interval data to customers for monitoring consumption pattern on daily/hourly basis

• Integration of Meter Data Management System(MDMS) and DRAS(Demand Response Automation Server), enabling elimination of role of aggregator and use of shadow meters for the purpose of calculation of baselines and actual shed calculation.

• Integration of MDMS system with the existing SAP system for creation of automatic service order and billing system.

Customer Coverage

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Audit conducted for 550 Nos. of consumers & subsequently 162consumers have been enrolled for the project

Only Industrial & Commercial consumers have been targeted underthe project ; Potential Identified :12 MW

Consumers’ area of coverage: more than 250 Sq km

Industrial Category includes: Flour Mills, Plastic & Footwear, Printing ,Food & Cold Storage industries etc.

Commercial Establishments include: Commercial complexes, hospitals,Cinema halls, Offices etc.

Automated Demand Response

Step 1• Identification of Critical/ Non critical load through Site audit

Step 2• Installation of Controller and Control Wiring

Step 3

• DR Event notification to the consumer in case of grid stress

Step 4• Consumer Concurrence for Participation in DR

Step 5• Shedding of Identified Non Critical Loads during the DR slot

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SHED POTENTIAL ANALYSIS

8 8Author:

Industry Cold Storage Flour & Dal MillFootwear & Plastic Printing steel Hospital Others

No of Consumers 8 39 39 7 10 3 61

Shed Potential (KW) 1364 3292 1718 423 629 375 3300

Sanctioned Load (KW) 10248 16891 6660 1528 2221 1970 24000

Percentage 13% 19% 26% 28% 28% 19% 14%

Industry Wise DR Shed Details

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DateIndustrial

(kVAh)Commercial

(kVAh)Total

(kVAh) Industrial % Commercial %

8th July’2015 3235.92 534.73 3770.65 85 15

11th July’20153304.74 266.59 3571.33 92 8

17th July’2015 2366.54 588.74 2955.28 80 20

22nd Aug’2015 3369.82 826.8 4196.62 80 20

26th Aug’2015 6264.55 771.27 7035.82 90 10

29th Aug’20155198.72 1292.76 6491.48 80 20

Total Savings(FY 2015-16)- 0.063 MUs

Event Results– DR Event 26th August 2015

Total Non Critical Load Connected: 11.5 MW,

17 ADR Events conducted from May –

Oct 2015

Max Shed potential

achieved: 7.2 MVA during peak period

in August’2015

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S. No Description Unit Amount

1 Per Unit cost of power through spot gas Rs 9

2 Shed Achieved during DR event MVA 7 .2

3 Units Saved due to DR Event KVAh 7159

Event Start

Event End

System Load Relief

7.2 MVA

AMI based ADR Project: Challenges

Design of ADR architecture with Smart meter

• Integration with existing IT-OT systems

• IT security

Technology selection

• Willingness of potential technology partners to invest in this complex project in order

• To keep the project cost within approved budget

Consumer enrollment

• Consumer engagement after conducting multiple interactions at different hierarchical

• level for convincing consumer to participate in DR program

• No direct incentive for participating consumers

• Technical feasibility for enrollment … manual starters / MCB operated loads,

• Continuous automated process

Way Forward

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Delhi Electricity Regulatory Commission (DERC) vide its letter dated 9th February, 2016 has granted in-principle approval for the implementation of the ADR Scheme for two years under following conditions :

Project includes direct load control of equipment classified as non-critical

The incentive would be in the form of rebate of: 20% of the normal tariff against units saved during the Demand Response event (DR

event), if the notification of event was intimated 2 hrs. or more in advance. 40% of the normal tariff against units saved during the DR event, if the notification of

DR event was intimated between 30 mins. to 2 hrs.

The amount of incentive would be calculated based on the above said units and the basic unit rate for the category in which the consumer is billed

Project would be scaled up to 250 nos in this year from 162 at present

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Thank you