KEEPS Energy Management Toolkit

wistfultitleElectronics - Devices

Nov 24, 2013 (3 years and 7 months ago)

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J.B. Speed School of Engineering
University of Louisville

KEEPS Energy Management Toolkit

Step 2: Assess Performance & Opportunities

Toolkit 2G: Plug Load

Kentucky Energy Efficiency

Program for Schools

KEEPS Energy

Management Toolkit

Step 2

Assess Performance &
Opportunities


Toolkit 2
G

Plug Load


KPPC Kentucky’s Resource Center for Environmental Sustainability

KEEPS Energy Management Toolkit

Toolkit 2G: Plug Load

KEEPS

Energy

Management

Toolkit

Toolkit 2
G

Plug Load

2

KPPC Kentucky’s Resource Center for Environmental Sustainability

3

7
-
Step Energy Management Process

1.
Make the Commitment

2.
Assess Performance and
Opportunities

3.
Set Performance Goals

4.
Create an Action Plan

5.
Implement the Action Plan

6.
Evaluate Progress

7.
Recognize Achievements

KPPC Kentucky’s Resource Center for Environmental Sustainability

Plug Load Overview

Importance


KEEPS On
-
site Energy Assessment Form


Examples


Computer Power Management


Refrigeration Units


Beverage Machines


KEEPS Plug Load and Computer Power
Management Tool


KEEPS Assessment Report

4

KPPC Kentucky’s Resource Center for Environmental Sustainability

Why is Plug Load Important?


Plug Load (electronics & appliances)


Easy to calculate usage and savings


Easy to implement/install energy
-
saving
measures


Areas to focus for conservation


Computers


Beverage machines


Refrigeration

5

KPPC Kentucky’s Resource Center for Environmental Sustainability

On
-
site Energy Assessment Form

6

KPPC Kentucky’s Resource Center for Environmental Sustainability

Computer Plug Load


Typically make up 40
-
55% of a school
building’s plug load



Varies between schools


Number of computers


Frequency of use

7

KPPC Kentucky’s Resource Center for Environmental Sustainability


Free ENERGY STAR
®

software
(EZ Wizard tool, EZ GPO tool)



“Sleep mode” during inactivity



“Wakes
-
up” computers
temporarily for scheduled KDE
updates



Cost = Labor time for IT to write
script and/or install software

Computer Power Management

8

KPPC Kentucky’s Resource Center for Environmental Sustainability

KEEPS Plug Load and CPM Tool:

Computer Power Management Tab

9

KPPC Kentucky’s Resource Center for Environmental Sustainability


Locate “Computer Power
Management” in the KEEPS
Assessment Report and modify
respective figures and other
necessary words/sentences for
your specific school.



Modify the inset box with the
results calculated from the
KEEPS Plug Load and
Computer Power Management
Tool.

KEEPS Report Input

10

KPPC Kentucky’s Resource Center for Environmental Sustainability

11

Plug Load Tab

KPPC Kentucky’s Resource Center for Environmental Sustainability


Typical soda machine = $150
-
$200/yr



Occupancy sensor turns off
machine when vicinity is vacant.



Maintains higher soda temperature
unless vicinity is occupied



Cost = $170/sensor


NEED subsidizes costs



Savings = $45
-

$140 each sensor



Several year simple payback

Beverage Machine Sensor

12

KPPC Kentucky’s Resource Center for Environmental Sustainability

Formulas


Beverage Machine(s) Cost/Yr. x 19% = Annual Savings


Bev. Machine(s) MMBtu/Yr. x 19% = Annual Energy Savings


Example School


$498/Yr. x 19% = $95 Savings/Yr.


22.8 MMBtu/Yr. x 19% = 4.3 MMBtu Energy Savings/Yr.

Beverage Machine Savings
Calculations

13

KPPC Kentucky’s Resource Center for Environmental Sustainability


Locate “Beverage Machines” in
the KEEPS Assessment Report
and modify respective figures
and other necessary
words/sentences for your
specific school.



Modify the inset box with the
results calculated from the KEEPS
Plug Load and Computer Power
Management Tool

KEEPS Report Input

14

KPPC Kentucky’s Resource Center for Environmental Sustainability


Summer accounts for 20% of the year



Typical K
-
12 school pays $500
-
$1,000
for refrigeration units



Cost = labor to clean and unplug for
summer



Annual savings = $100
-
$200



Immediate simple payback

Refrigeration Summer Shutdown

15

KPPC Kentucky’s Resource Center for Environmental Sustainability

Formulas


Refrigeration Cost/Yr. x 20% = Annual Savings


Refrigeration MMBtu/Yr. x 20% = Annual Energy Savings


Example School


$872/Yr. x 20% = $174 Savings/Yr.


40 MMBtu/Yr. x 20% = 8 MMBtu Energy Savings/Yr.

Refrigeration Savings Calculations

16

KPPC Kentucky’s Resource Center for Environmental Sustainability


Locate “Refrigeration” in the
KEEPS Assessment Report
and modify respective figures
and other necessary
words/sentences for your
specific school.



Modify the inset box by
multiplying the total cost of
refrigeration by 20% for
estimated annual savings.

KEEPS Report Input

17

KPPC Kentucky’s Resource Center for Environmental Sustainability

18

Resources

Available for download from the KEEPS
Toolkit Library


http://www.kppc.org/KEEPS

J.B. Speed School of Engineering
University of Louisville

End of
Presen
tation

(502) 852
-
0965

www.kppc.org/KEEPS


Kentucky Energy Efficiency

Program for Schools

KEEPS is funded by the American Recovery and Reinvestment Act through
the combined efforts of the Kentucky Department for Energy Development
and Independence, the U.S. Department of Energy and KPPC.