Final Report Lot 9: Public street lighting - Amper

160000
140000
120000
100000
80000
60000
40000
20000
0
1990 1995 2000 2005 2010 2015 2020
FU (functional lumen), new luminaires >2010
FU (functional lumen), replaced luminaires >2010
FU (functional lumen), old stock ≤2010
FU (functional lumen), total installed base (BAU)
Figure 58: Functional light lumen output (unit: mio. lm)
While in this scenario, the total energy use decreases, the functional lumen output of the
installed base in 2020 increases with about 13%, compared to BAU. With the need to deal with
the lock-in effect of existing street lighting luminaires and with current street lighting
performance requirements, generally demanding more light output compared to currently
existing installations, applying retrofit HPS lamps in existing HPM luminaires is an energy-
and cost-saving measure that can be implemented in the short term. For replacement sales,
where pole distances are not changed (thus lock-in effect), replacing end-of-life HPM
luminaires with new HPS luminaires also increases the functional lumen output. Where the
same lighting level as before should be attained, a lower wattage HPS (i.e. 50W) luminaire
could be installed. In this scenario, the first is calculated thus additional energy saving can be
achieved doing so.
In this scenario, also the mercury content in the installed base will significantly decrease as
calculated in Table 119.
Table 119: Total mercury content, installed base scenario 1 & 13.
1990 1995 2000 2005 2010 2015 2020
Fast total lamp mercury, 2 2 2 3 3 4 4
Mixed INSTALLED BASE 208 214 219 224 221 97 96
Slow (kg) 174 186 196 206 220 207 215
TOTAL 384 403 417 433 444 308 316
238