APPENDIX 'B'
LED - 10 Year Cost Summary
Signalized Intersections Current 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
Maintenance Maintenance Maintenance Maintenance Maintenance Maintenance Maintenance Maintenance Maintenance Maintenance Maintenance
Energy Cost Energy Cost Energy Cost Energy Cost Energy Cost Energy Cost Energy Cost Energy Cost Energy Cost Energy Cost Energy Cost
1 to 11      17,875.00        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50
12 to 22      17,875.00      17,875.00        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50
23 to 33      17,875.00      17,875.00      17,875.00        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50
34 to 44      17,875.00      17,875.00      17,875.00      17,875.00        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50
45 to 55      17,875.00      17,875.00      17,875.00      17,875.00      17,875.00        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50        1,292.50
Annual Re-lamp and energy      89,375.00      72,792.50      56,210.00      39,627.50      23,045.00        6,462.50        6,462.50        6,462.50        6,462.50        6,462.50        6,462.50
Annual Retrofit Program      95,000.00      95,000.00      95,000.00      95,000.00      95,000.00
Baseline  (Current Energy &
Maintenance Costs)      89,375.00      89,375.00      89,375.00      89,375.00      89,375.00      89,375.00      89,375.00      89,375.00      89,375.00      89,375.00      89,375.00
Accumulated Baseline      89,375.00     178,750.00     268,125.00     357,500.00     446,875.00     536,250.00     625,625.00     715,000.00     804,375.00     893,750.00
Retrofit  (Maintenace,
Energy and Retrofit Costs)     167,792.50     151,210.00     134,627.50     118,045.00     101,462.50        6,462.50        6,462.50        6,462.50        6,462.50        6,462.50
Accumulated Retrofit     167,792.50     319,002.50     453,630.00     571,675.00     673,137.50     679,600.00     686,062.50     692,525.00     698,987.50     705,450.00
Difference -    78,417.50 -   140,252.50 -   185,505.00 -   214,175.00 -   226,262.50 -   143,350.00 -    60,437.50      22,475.00     105,387.50     188,300.00
* Positive variance realized in 8th year