HomeMy WebLinkAboutDocumentation_Regular_Tab 07_05/12/2011 Apri126 ZO11
Mayor and Council,
As many of you are aware Light Emitting Diodes (LED) is the
wave of the future with regard to energy savings, longevity and
making office buildings "GREEN". Electrical Systems Inc.
has been involved with this installation for a number of months
since the new LED fluorescent lamps have received the ETL
listing and are now accepted throughout Palm Beach County.
While the initial retrofit is costly, the return on investment,
ROI, is quick resulting in considerable saving to the end user.
It avoids continual ballast and lamp replacement and reduces
the heat load resulting in additional savings by cutting down
on air conditioning costs.
Attached you will find the projected cost to the Village if this
installation were done in Tequesta's buildings. The figures you
see are based on the Village Hall, Public Safety, Recreational,
Public Works and Water Plant buildings.
While the calculations were done by ESI, Electrical Systems
would not perform the installation due to a conflict of interest
as I am on Council. It is my honest opinion that the Village
would be well advised to consider this installation as the ROI
speaks for itself. The Village many times is the first
organization to think outside the box.
While the funds are "not" in our current budget this may be
an area where our reserves are put to good use.
Please fell free to contact me at any time if you have additional
questions.
Jim Humpage
TOTAL NUMBER OF LIGHT FIXTURES 503
TOTAL COST OF 4' LAMPS $80,192.00
TOTAL COST OF 2' LAMPS $ 1,470.00
TOTAL COST OF LABOR $ 8,000.00
TOTAL RETROFIT COST �89,662.00
ANNUAL SAVINGS $39,545.00
PROJECTED ROI 24 MONTHS
PROJECTED SAVINGS AFTER ROI $39,545.00 YEARLY
L
Village of Tequesta �8 (4ft.), LED ROI Calculator
Current Lighting Watts per bulb (VV) 34
�
LED Lighting Watts per bulb (VV) 18 �
Total Number of Fixtures or Bulbs 1253
Daily Operating Hours (hrs) 14 *
Working Days Per Month �
kWh Cost �
�
Maintenance & Ballast Monthly (per Bulb) 1.50
�
HVAC Load Monthly Cost Factor (o� 15 �
Cost per single LED Bulb 64 #
Cost for Installation (per bulb) �
*
Rebates (Utilities or Government) (per bulb) �
�
EPAct Rebates (per bulb) �
*
Financial Benefits
_ _ _ _ __.
Current Lighting LED Lighting
Watts per bulb (VV) _ _ 34 18
_,____ —._ _-____ . _ _.,._-.. _
Number of Fixtures or Bulbs 1253 1253
_ _ ..
Daily Operating Hours (hrs) 14 14
_ _ _ _ _ _ _ _
Watt-hours per day (Wh) 'S96428 315756
_ _ _ _ _ .. __ ,
Kilo-watt-hours per day (kWh) 596 316
__ _
Working Days Per Month 30 30
_ _ _ _ ._ _ , _
Total kWh per Month (kWh) 17892.84 9472.68
kWh Cost _ 0.12 0.12
_ _. _ _. _ _ _ .
Monthly kWh Cost 2147.14 1136.72
_ . . _ _ .,
Maintenance & Ballast Monthly (per Bulb) 1.5 0.00
_ _ _ __ ___ .
Maintenance & Ballast Monthly Total 1879.50 0.00
_. _ _ _ __ _ _ _. _.
HVAC Load Monthly Cost Factor (%) 15 '0%
__._ _ _._ . __
HVAC Monthly Cost from Lighting '322.07 0.00
Cost per Month w/ HVAC and Maintenance 4348.71 1136.72 '
_ _. , .
Total annual cost to operate 52184.54 13640.66
LED ROI
Cost per single LED Bulb 64
Cost of Installation per single LED Bulb 0
Rebates per single LED Bulb 0
EPAct Rebates per single LED Bulb 0
Total Savings Monthly with LED 3211.99
Total Savings Annually with LED 38543.88
Total Savings over 10 Years 385�38.84
Total Cost to retrofit with LED 80192Q�.
Payback Period in Months 24.97
Environmental Benefits
Current Lighting LED Lighting
Annual System Electricity Usage (kWh) 214714.08 113672.16
kWh Cost 0.12 0.12
Annual System Cast 25765.69 13640.66
Energy Savings from kWh Reduction 12125.03
CO2 Emissions Reduction (Ibs)' 134385.75
Car Removal Equivalent (cars)"* 11.74
Tree Planting Equivalent (acres of trees)'** 25.84
Village of Tequesta '�2ft:� LED ROI Calculator
Current Lighting Watts per bulb (W) 30
�
LED Lighting Watts per bulb (VV) 9
�
Total Number of Fixtures or Bulbs 30 �
Daily Operating Hours (hrs) 14 k
Working Days Per Month 30
�
kWh Cost •
�
Maintenance & Ballast Monthly (per Bulb) 1.50
�
HVAC Load Monthly Cost Factor (o� 15 �
Cost per single LED Bulb 49
*
Cost for Installation (per bulb) �
�.
Rebates (Utilities or Government) (per bulb) �
*
EPAct Rebates (per bulb) ��� .
�.
Financial Bene�ts
___ __ _ _ _ _ . _,.
Current Lighting LED Lighting
Watts per bulb (VV) _ _ 30 9 .
_.__ _
Number of Fixtures or Bulbs 30 30
Daily Operating Hours (hrs) -. 14 14 __..
_.__ _. _ _
Watt-hours per day (Wh) 12600 3780
Kilo-watt-hours per day (kWh) _ _ 13 _ _ 4 _ _-
_.,. . _ _ _
Working Days Per Month 30 30
_ . . _ _ _ __._ _ _._.
Total kWh per Month (kWh) 378 113.4
_ _ _ _.
kWh Cost 0.12 '0.12
_ _ _ . _._ _ _ ___-. ,
Monthly kWh Cost 45.36 13.61
_ __ _. _
Maintenance & Ballast Monthly (per Bulb) 1.5 '0.00
_. _ _ __;
Maintenance & Ballast Monthly Total 45.00 0.00
_
HVAC Load Monthly Cost Factor (%) 15 0%
_.. _
HVAC Monthly Cost from Lighting 6.80 0.00
. . _ _ _.
Cost per Month w/ HVAC and Maintenance 97.16 13.61
_ _ _ _ _. __.
Total annual cost to operate 1165.97 163.30
LED ROI
Cost per single LED Bulb 49
Cost of Installation per single LED Bulb 0
Rebates per single LED Bulb 0
EPAct Rebates per single LED Bulb 0
Total Savings Monthly with LED 83.56
Total Savings Annually with LED 1002.67
Total Savings over 10 Years 10026.72
Total Cost to retrofit with LED 1470.00
Payback Period in Months YP:�9
Environmental Benefits
Current Lighting LED Lighting
Annual System Electricity Usage (kWh) 4536.00 1360.80
kWh Cost 0.12 0.12
Annual System Cost 544.32 163.30
Energy Savings from kWh Reduction 381.02
CO2 Emissions Reduction (Ibs)' 4223.02
Car Removal Equivalent (cars)"* 0.37
Tree Planting Equivalent (acres of trees)*'`* 0.81
