Public Power Daily Logo

U of Colorado student looks at storage systems for optimizing renewable resources


From the January 10, 2014 issue of Public Power Daily

Originally published January 10, 2014

Michele Lim, a student at the University of Colorado at Boulder, recently completed a DEED scholarship project to find the optimal type, size and placement of an energy storage system that will reduce the grid frequency fluctuations that occur due to the intermittent nature of renewable energy sources. The project was supported by APPA's Demonstration of Energy & Efficiency Developments program.

Because of the increasing amounts of renewable generation displacing traditional sources of energy and because energy storage systems are expensive, finding the optimal size is important in minimizing cost while maximizing the effectiveness of the storage system. Lim's research was sponsored by the Platte River Power Authority in Fort Collins, Colo. She found that a Proportional-Integral-Derivative controller was an adequate device for controlling the storage system power output to reduce frequency fluctuations. Under the conditions used in the study, Lim also found that the cheapest energy storage system was a flooded lead-acid battery.

Lim’s final project report, "Energy Storage Sizing and Placement on a Grid," is posted in the DEED Project Database.
 

Ratings

Be the first to rate this item!

Please Sign in to rate this.

Comments

  Add Your Comment

(1000 of 1000 characters remaining)

Senior Vice President, Publishing 
Jeanne Wickline LaBella
202/467-2948
JLaBella@publicpower.org

Editorial Director
Robert Varela
202/467-2947
RVarela@publicpower.org

Editor, Public Power Daily
Jeannine Anderson
202/467-2977
JAnderson@publicpower.org

Communications Assistant
Fallon W. Forbush
202/467-2958
FForbush@publicpower.org

Manager, Integrated Media 
David L. Blaylock
202/467-2946
DBlaylock@publicpower.org

Integrated Media Editor 
Laura D’Alessandro 
202/467-2955 
LDAlessandro@publicpower.org