DR Resources for Energy and Ancillary Services

45 Pages·2014·4.21 MB·English

DR Resources for
Energy and Ancillary
Services
Marissa Hummon, PhD
CMU Energy Seminar
Carnegie Mellon University, Pittsburgh, Pennsylvania
April 9, 2014

NREL/PR-6A20-61814
NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable
Energy, LLC.
Outline
• Background on the study
• Assessing the capabilities of load to provide DR
• Potential of DR to provide reserves
Correlation of DR, reserve requirement, and reserve
o
price
• Modeling DR in Production Cost Model
What did we model?
o
Value of DR in Test System
o
Revenue Streams for DR
o
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Demand response and energy storage
integration study
Potential for flexible response from end-use appliances, equipment, and systems
across the commercial, industrial, and residential sectors

Operational values for flexible response and energy storage providing bulk power
system services under different system conditions
Energy transactions (e.g. use lower cost off-peak power to serve on-peak load)
Provision of ancillary services (including frequency regulation, load following
reserve, and contingency reserve)
Reduction of generator unit starts, cycling, and ramping costs

Change in values (increase or decrease) with increased penetration of variable
renewable generation like wind and solar power

Implementation barriers to the utilization of flexible response and storage

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Project Team
Department of Energy
Ookie Ma

Lawrence Berkeley National Laboratory
Sila Kiliccote, Nance Matson, Daniel Olsen, Cody Rose, Michael Sohn, Sasank Goli, and
June Dudley
Peter Cappers and Jason MacDonald

National Renewable Energy Laboratory
Paul Denholm, Marissa Hummon, Jennie Jorgenson, and David Palchak

Oak Ridge National Laboratory
Michael Starke, Nasr Alkadi, and Ron Dizy (ENBALA)

Sandia National Laboratories
Dhruv Bhatnagar, Aileen Beth Currier, and Ray Byrne

External advisors: Brendan Kirby and Mark O’Malley (UCD)
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Assessment of Load to Provide
Demand Response:
– End uses
– Grid services
– Sheddability, Acceptability, Controllability
End-Uses Selected for Participation
• Commercial
– Space Cooling, Space Heating, Lighting, Ventilation
• Residential
– Space Cooling, Space Heating, Water Heating
• Municipal
– Freshwater Pumping, Highway Lighting, Wastewater Pumping
• Industrial
– Agricultural Irrigation Pumping, Data Centers, Refrigerated
Warehouses
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DR services provided by End-Uses
Product Purpose Response Characteristics
Regulation Response to random unscheduled Called continuously, must begin response
deviations in scheduled net load w/in 30 seconds, energy neutral over 15
minutes
Flexibility Additional load following reserve for Called continuously, must begin response
large un-forecasted wind/solar ramps w/in 5 minutes
Contingency Rapid and immediate response to a loss Called once per day or less, must begin
in supply (≤ 30 minutes) response w/in 1 minute
Energy Shed or shift energy consumption over Called 1-2 times per day, 4-8 hours
time (≥ 1 hour) advance notification
Capacity Ability to serve as an alternative to Must be available top 20 hours in each
generation area
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Quantifying Responding Load
Total balancing authority load
Load from selected end-uses
Portion of end-use loads which can be shed/shifted in typical
“ ”
DR Strategies ( sheddable load)
Portion of sheddable load willing and able to participate
Flexibility
(Load is controllable, sheds/shifts are acceptable to end-
Filters
users)
Portion of sheddable, controllable, acceptable load
provisioned by PLEXOS
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Summary of Results
Product Estimated Availability Technical Potential*
(% relative to total load) (% relative to total load)
Regulation 153-1,822 MW (0.2-2.0%) 3,954-23,906 MW (6-20%)
Flexibility 339-2,162 MW (0.4-2.3%) 3,954-23,906 MW (6-20%)
Contingency 445-2,990 MW (0.5-2.8%) 5,156-26,712 MW (7-22%)
Energy Shift 194-2,846 MW (0.2-2.3%) 2,185-25,592 MW (2-21%)
Capacity 679-4,233 MW (0.8-3.5%) 5,390-32,353 MW (7-27%)
*Technical Potential is sheddable load, with 100% controllability and acceptability
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