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Constellation Retail by the Numbers 
Natural Gas: 398 Bcf 
delivered in C&I retail markets (2013) 
Retail Power: 87 TWh 
peak load served (2013) 
Load Response: 1,300 MW 
of dispatchable load (2013) 
Energy Efficiency: 50 MW 
conserved by customers (2013) 
Solar: 164 MW of solar installations 
completed or under construction (2013) 
Serving 2/3 of the Fortune 100 
More than 100,000 
Business & Public Sector customers 
Approximately one million 
Residential customers 
RETAIL ELECTRICITY & NATURAL GAS SERVICE 
Constellation is headquartered in Baltimore, 
MD and is a unit of Exelon Corporation 
What We Serve 
Who We Serve 
Where We Serve
Illustrating the “Energy Strategy” 
P 
L 
Energy Strategy 
Usage Offsets 
COST =/ PRICE 
COST = (P * Q)T 
EE 
LR 
Systems & 
Tools 
Etc. 
Renewables 
2 © 2011. Constellation Energy Group, Inc. The materials provided and any offerings described herein are those of Constellation NewEnergy, Inc., a subsidiary of Constellation Energy Group, Inc. Brand names and product names are trademarks or service marks of 
their respective holders. All rights reserved. Errors and omissions excepted.
Choices 
3
Managing Offsets via Load Response 
Permanent and Responsive actions are taken by end users that influence the quantity, 
or patterns, of energy usage and subsequent offsets. 
Permanent Responsive 
 Energy Efficiency 
 Load Shifting 
 Distributed Gen 
 Conservation 
 Capacity - Demand Response 
 Ancillary - Reserves 
 Economic – Day Ahead 
 Constellation Programs – Peak 
& Price Response 
kW 
kW $$ 
1 24 
1 24 
4 © 2011. Constellation Energy Group, Inc. The materials provided and any offerings described herein are those of Constellation NewEnergy, Inc., a subsidiary of Constellation Energy Group, Inc. Brand names and product names are trademarks or service marks of 
their respective holders. All rights reserved. Errors and omissions excepted.
Demand Response 
Demand Response is a capacity, or demand, based program put in place to offer the 
grid an option to maintain reliability and ensure adequate supply to meet demand 
5 
January December 
Grid 
Demand 
A. Outages 
B. Build More 
C. Respond Programmatically 
Customer Impact: Aside from the simple avoided cost of NOT using during high priced periods customers also receive an economic 
incentives for their reduction.
Energy Efficiency Programs 
Description: Facilities that permanently reduce their electric demand with energy 
efficiency projects, load management, and distributed generation projects, can 
receive program payments. Permanent electric load reduction helps to reduce the 
demand on the electric grid and improve sustainability. 
Notification: Non-Dispatchable Load 
Timing of Events: No events. 
Duration of Performance: Permanent 
Payments: Similar to capacity program payments.
Load Shifting 
A permanent load management option based on the business’ ability to change 
the amount of energy used at any given point in time. 
7 
Electricity Load (kW) 
Accomplished Through 
 Optimizing BMS/EMS usage 
 Production Planning 
 Chilled Water Storage CWS 
 Ice-on-Coil (Ice Bank) Storage 
 Ice Storage Air Conditioning 
(ISAC) 
1 24 
Customer Impact: If Time of Use can be managed, it would benefit the customer to shift load from times when 
prices are high (ON Peak) to lower priced periods throughout the day (OFF Peak). 
↓ COST = (P x ↓Q) T
Constellation’s Distributed Energy Business 
Solar 
Emergenc 
y 
Generatio 
n CHP / 
Fuel 
Cells 
EV 
Charging 
CNG 
Fueling 
Storage 
Constellation 
supports 
traditional and 
emerging DG 
technologies 
© 2013. Constellation Energy Resources, LLC. The offerings described herein are those of either Constellation NewEnergy-Gas Division, LLC or Constellation NewEnergy, Inc., affiliates of each 
other and subsidiaries of Exelon Corporation. Brand names and product names are trademarks or service marks of their respective holders. All rights reserved. Errors and omissions excepted.

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Randy Palombi CCA and Demand response

  • 1. Constellation Retail by the Numbers Natural Gas: 398 Bcf delivered in C&I retail markets (2013) Retail Power: 87 TWh peak load served (2013) Load Response: 1,300 MW of dispatchable load (2013) Energy Efficiency: 50 MW conserved by customers (2013) Solar: 164 MW of solar installations completed or under construction (2013) Serving 2/3 of the Fortune 100 More than 100,000 Business & Public Sector customers Approximately one million Residential customers RETAIL ELECTRICITY & NATURAL GAS SERVICE Constellation is headquartered in Baltimore, MD and is a unit of Exelon Corporation What We Serve Who We Serve Where We Serve
  • 2. Illustrating the “Energy Strategy” P L Energy Strategy Usage Offsets COST =/ PRICE COST = (P * Q)T EE LR Systems & Tools Etc. Renewables 2 © 2011. Constellation Energy Group, Inc. The materials provided and any offerings described herein are those of Constellation NewEnergy, Inc., a subsidiary of Constellation Energy Group, Inc. Brand names and product names are trademarks or service marks of their respective holders. All rights reserved. Errors and omissions excepted.
  • 4. Managing Offsets via Load Response Permanent and Responsive actions are taken by end users that influence the quantity, or patterns, of energy usage and subsequent offsets. Permanent Responsive  Energy Efficiency  Load Shifting  Distributed Gen  Conservation  Capacity - Demand Response  Ancillary - Reserves  Economic – Day Ahead  Constellation Programs – Peak & Price Response kW kW $$ 1 24 1 24 4 © 2011. Constellation Energy Group, Inc. The materials provided and any offerings described herein are those of Constellation NewEnergy, Inc., a subsidiary of Constellation Energy Group, Inc. Brand names and product names are trademarks or service marks of their respective holders. All rights reserved. Errors and omissions excepted.
  • 5. Demand Response Demand Response is a capacity, or demand, based program put in place to offer the grid an option to maintain reliability and ensure adequate supply to meet demand 5 January December Grid Demand A. Outages B. Build More C. Respond Programmatically Customer Impact: Aside from the simple avoided cost of NOT using during high priced periods customers also receive an economic incentives for their reduction.
  • 6. Energy Efficiency Programs Description: Facilities that permanently reduce their electric demand with energy efficiency projects, load management, and distributed generation projects, can receive program payments. Permanent electric load reduction helps to reduce the demand on the electric grid and improve sustainability. Notification: Non-Dispatchable Load Timing of Events: No events. Duration of Performance: Permanent Payments: Similar to capacity program payments.
  • 7. Load Shifting A permanent load management option based on the business’ ability to change the amount of energy used at any given point in time. 7 Electricity Load (kW) Accomplished Through  Optimizing BMS/EMS usage  Production Planning  Chilled Water Storage CWS  Ice-on-Coil (Ice Bank) Storage  Ice Storage Air Conditioning (ISAC) 1 24 Customer Impact: If Time of Use can be managed, it would benefit the customer to shift load from times when prices are high (ON Peak) to lower priced periods throughout the day (OFF Peak). ↓ COST = (P x ↓Q) T
  • 8. Constellation’s Distributed Energy Business Solar Emergenc y Generatio n CHP / Fuel Cells EV Charging CNG Fueling Storage Constellation supports traditional and emerging DG technologies © 2013. Constellation Energy Resources, LLC. The offerings described herein are those of either Constellation NewEnergy-Gas Division, LLC or Constellation NewEnergy, Inc., affiliates of each other and subsidiaries of Exelon Corporation. Brand names and product names are trademarks or service marks of their respective holders. All rights reserved. Errors and omissions excepted.

Editor's Notes

  1. 10/1/12: changed Nat Gas to 400 bcf per Justine Termine (includes MX & Choice load) Changed ‘more than 1 million resi customers’ to ‘Approx 1 million’ 8/9/11: Changed to Over 90,000 C&I, Institutional & Govt customers. And Nearly 900,000 Residential customers Changed Demand Response to Load Response. Changed to 25 MW solar installations from 28. 7/18/10: Fixed: from 350 billion CCF to 350 billion cubic feet (per RD/LE) 6/7/10: Changed from 8,200 MWs owned generating capacity to 8,956 MWs owned generating capacity 5/18/10: Changed from 7,118 MWs to 8,200 MWs owned generating capacity Additional stats: Gas Retail: 350 billion CCF, or 350 million mmBTUs. Power Retail: 56 million MWH peak load or 14,000 MW Peak load Retail AND Wholesale Power is 30,000 MW Peak load
  2. This Green “Umbrella” is our value proposition and the foundation for an active energy management strategy that each and every one of our customers should take into consideration. The components of this energy strategy can be viewed as at usage (Power/Gas/Renewables) and offsets (EE, LR, Solar,) In this session we are focusing on LR.
  3. Photo Source: bing.com
  4. This slide provides a snapshot of the available alternatives end users have to address the problem on the previous slide. It’s nice to illustrate these options within the education process for reps similar to the way in which we communicate it to customers through our QBS based value proposition. At the end we ask the question…”what do all of these items have in common?” arrow scans Responsive options… They are all under the umbrella of Load Response.
  5. The ability to change the amount of energy used at any given time. Load shifting can be accomplished by turning off a piece of equipment; switching to internal, off-grid power generation sources; or operation of equipment during off-peak hours 3 examples of Cali Permanent Load Shifting Program Chilled Water Storage ("CWS")* — The CWS system includes the design, installation, and operation of storage systems for chilled water so that the building's air conditioning compressors can manufacture and store chilled water during the off-peak hours (generally at night) for use later during the day. During on-peak periods equipment such as smaller pumps and fans operate to circulate the chilled water to condition the spaces with the main compressors turned off, thereby permanently reducing a major portion of air conditioning energy usage and demand from the on-peak period. Ice-on-Coil ("Ice Bank") Storage* — This is a modular Thermal Energy Storage (TES) system that utilizes a chilled water-glycol technology to manufacture ice in an enclosed tank for central air conditioner systems. Using the same TES principle as in chilled water storage, the ice-on-coil system will "charge" the modular tank during the off-peak hours with the electric chillers that would normally operate during the day. The Ice Bank system will manufacture and store ice at night, which will be used during the day to chill the water for air conditioning. Ice Storage Air Conditioning ("ISAC") — ISAC uses an external ice storage tank to provide the thermal storage for a packaged air conditioner that uses refrigerant, not water, as the cooling medium. The system operates the compressors at night to freeze water in a self-contained storage system to create ice. The ice is then used during the day to cool the refrigerant which in turn is used to air condition the building. The system may be retrofitted in existing packaged central air conditioner systems (usually 5 to 15 tons) or installed as new systems.