Results
We obtained quotes from three companies:
Table 1: Static Excitation Systems
Vendor |
Static Excitation System |
ABB |
Unitrol 5000 |
Siemens |
Thyripol |
Basler |
ECS2100 |
Table 2: Installed System Costs
Vendor |
Unit 1 |
Unit 2 and 3 |
ABB |
$1,405,500 |
$2,230,500 |
Siemens |
$1,305,328 |
$2,850,328 |
Basler |
$1,270,500 |
$2,125,500 |
The Siemens and Basler quotes did not include all the required parts and services. ABB numbers were used to fill in the missing data.
In order to calculate a payback time, the following parameters were used:
Energy Value: $ .038 / kWh
Replacement Capacity Value: $100/kW/year
Unit 1 Capacity: 122,500 kW
Units 2 & 3 Capacity: 290,000 kW
Unit 1 Installed Cost: $1,327,109 (averaged)
Units 2 & 3 Installed Cost: $2,402,109 (averaged)
Equation 1: Payback Model
MATLAB was used to plot the payback time with respect to the improved forced outage days.
Figure 1: Unit 1 Payback Time
Figure 2: Units 2 & 3 Payback Time
Although forced outage days is a variable, the sponsor recommended using one day a year improvement on unit 1, and a .2 days a year improvement on units 2 and 3. This model assumes the new system will have no forced outage time. This gives us a payback time of:
|
Unit 1 |
Units 2 and 3 |
Payback Years |
7.33 years |
45.4 years |
Final Report and Presentation:
The Team is compiling a final report to be given to the client. This will include a cost model with a payback time. To the right, you can download the final presentation, and poster that highlights our project for the year.
Thanks:
We would like to thanks Tim Vachon from APS for providing us with the project and resources needed to complete it.
Also Thanks to:
Ralph Bushman - Sponsor
Dr. Venkatraman - Technical Advisor
John Demko - Cost Model Advisor
Dr. Scott - Teacher |
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