Senior Design Fall 2014
ECE Department and Center for Clean Energy Engineering
Emily Simonelli
Lindsay Sullivan
Taniya Singh
United Illuminating in Orange, CT
10/15/2014
10/13/2014
Copyright © 2014 – Advanced Power Electronics & Electric Drives Lab (APEDL)
Avoided Costs
What are the costs being avoided by saving a certain amount of energy each year?
Total Resource Cost: The costs that are needed to provide the device
Incentive Cost: Utility company cost incentive provided per device
Fours Measure Periods:
-Winter Off-Peak
-Winter On-Peak
-Summer Off-Peak
-Summer On-Peak
*On Peak = Monday-Friday 6am-10pm
**Winter = November- April
10/13/2014
Copyright © 2013 – Advanced Power Electronics & Electric Drives Lab (APEDL)
Generation (capacity): The costs of having the power plant in place
Transmission: How to transfer the power into the substations
Distribution: The process from the substations to the client
10/13/2014
Copyright © 2013 – Advanced Power Electronics & Electric Drives Lab (APEDL)
Cost Benefit Inputs (electric energy tool)
Impact Factors
Electric Savings
Capacity Savings
Non-Electric Benefits
10/13/2014
Copyright © 2013 – Advanced Power Electronics & Electric Drives Lab (APEDL)
Cost-Benefit Definitions
Free-ridership: The percentage of customers who would have bought the
product without the incentive
Spillover: percentage of customers who buy the product that aren’t part of
the program.
Realization Rate: The actual savings compared to the expected savings
Coincidence Factor: The chance that a saving will occur during each
measure period
DRIPE: Demand Reduction Induced Price Effects (explained in next slide).
Emissions Credit Value: What is the emissions savings per KW/Hr
Raw Value: Cumulative value of money based off of time
10/13/2014
Copyright © 2013 – Advanced Power Electronics & Electric Drives Lab (APEDL)
DRIPE
Full form: Demand Reduction Induced Price Effects
• Run the most efficient power plants first (when load isn’t too high)
• cheapest power plants run first
• Example: winter is estimated 6.8 cents. DRIPE for this year is an
additional 0.5 cents (additional savings).
• DRIPE is calculated for different periods throughout the year
Original intention: calculated energy efficiency using DRIPE to avoid
building new power plants.
10/13/2014
Copyright © 2013 – Advanced Power Electronics & Electric Drives Lab (APEDL)
Updated Goals
• What are the inputs?
• Flowcharts are a good start.
• The Energy Efficiency planning use to be done yearly and is now
switched to every 3 years. UI would like an update for the 3rd year
plan.
• Would like a model for years 2016-2018.
• The Residential part of the excel sheet needs to be cleaned-up first.
• May not combine gas and electric anymore.
10/13/2014
Copyright © 2013 – Advanced Power Electronics & Electric Drives Lab (APEDL)