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Confidential
The information contained in this presentation is for the exclusive and confidential use of the recipient. Any other
distribution, use, reproduction or alteration of the information contained in this presentation, by the addressee or by any
other recipient, without the prior written consent of ENBALA Power Networks Inc. is strictly prohibited.
DSWG February 24, 2012
Smart Grid Solutions That Pay You
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Regulation Service – Demand Side Participation
Regulation Service in essentially provided by Generation in ERCOTLoads have passed the testing and are registered to participate Market reports indicate the Demand Side resources are not very active in the market
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Demand Side Regulation – North American Markets
Market Rules Permit Load
Participation
Active Loads
Permit Aggregation
Sub-Metering
ERCOT Y Y N N
PJM Y Y Limited Soon
MISO Y 1 – ALCOA Limited N
NYISO Y N No N
ISO-NE Y N Limited Y
CAISO Y/N N Limited N
IESO Y N N N
SPP not included as there currently isn’t a marketfor Regulation
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Load Management Universe Market maturity for demand-side assets to participate
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New DR products must be bi-directional
Regulation represents required balance in the gridAs likely to require the use of more power as curtailment
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Requires intelligent capture of inherent
flexibility in processes
Requires the ability to define constraints
such that operational priorities rank first
Cannot Impact the Customer
Requirements are more frequent and
have shorter notice
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Why Limited Load in Regulation Market?A load does a process or task. Participation in the Electricity Wholesale Market should not impact the process or taskTraditional DR has limited curtailment events and therefore limited impact on the loadRegulation requires the load to respond to 4 second control signalsRegulation as likely to require the load increase consumption as often as curtail consumptionVery few loads have the flexibility to respond in the short timeframe and bi-directionally Increased communication requirementsRules limit aggregation to create a network or fleet response
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A Network Approach
Generally a single Demand Resource can not respond to the a 4 second signalA group of Demand Resources acting as an intelligent integrated network can provide robust, reliable and efficient Regulation Service
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ENBALA Power Network
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What is ENBALA’s Grid Balance Program
• It provides moment by moment balance for the grid.• It works within Load defined operational parameters• It is an energy and capacity neutral program• It monetizes the flexibility inherent in Load processes• It requires an intelligently managed network of assets• It is complementary to demand response and other energy
management programs• It is NOT demand response• It is NOT an energy curtailment program• It is NOT intrusive to Load operation
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Benefits of Demand Side Regulation
Utilizes installed resources Frees generation to provide other services Increases the efficiency of the generation portfolioReduces cost Provides an additional revenue stream for the hostEnhances Regulation competition
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Market RequirementsMultiple QSE’s
– Allowing multiple technology providers to work with a load– Ensure compatibility– Crucial for much wider spread adoption
Sub-metering– To gain access to the specific characteristics of specific loads
Aggregation and Portfolio – Across sub zones– Lower aggregation requirements– Performance measurement at Portfolio not Resource level
Regulation offers without Energy offers ... Not an issue but needs to be considered when developing rules for Demand participation in the Nodal Market
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Next Steps
DSWG endorsement to investigate and implement rules that would enable a Network to effectively participate in the ERCOT market
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ISO Signal
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Resource ResponseEPN Client Pool
beginning to respond to ISO
signal.
EPN Client Pool beginning to
respond to ISO signal.
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Resource Response
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Resource ResponseMore
participants from the Client
Pool are responding to
requests.
More participants
from the Client Pool are
responding to requests.
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Resource ResponseThe green line
is EPNs aggregated
response from the Client Pool.
The green line is EPNs
aggregated response from the Client Pool.
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Resource Response8 binary assets
(on/off) responding to
the EPN.
8 binary assets (on/off)
responding to the EPN.
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Resource ResponseThe 9th participating
load is a VFD – providing a continuous
response (ranging between 1000 kW –
1750 kW)
The 9th participating load is a VFD –
providing a continuous
response (ranging between 1000 kW –
1750 kW)
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Resource Response
The aggregate response of each resource in the
network is compiled to form a unified
regulation response.
The aggregate response of each resource in the
network is compiled to form a unified
regulation response.
