Final Report Lot 9: Public street lighting - Amper

e constant over time; street lighting growth is then only related to road network growth (1,2%
annual growth, see chapter 3). When assuming the ratio pole life versus luminaire life to be 2,
the share of new luminaire sales to be locked-in existing infrastructure (power grid, pole, …) is
approximately 40%. This results in calculated data on annual stock and sales.
As suggested by the MEEuP report and Case Study on Street Lighting (VHK, 2005), the
modelling on the improvement ratio Stock vs. New Products is expanded. On one hand the long
lifetime of luminaires (average 30 yrs) makes that the ‘average’ characteristics and composition
of stock-equipment are substantially different from that of new sold equipment. On the other
hand, as mentioned above, a share of the new sales serves to replace existing old products but
are often ‘locked-in’ an existing infrastructure. For the improvement options (chapter 7), this
distinction is important to consider.
From chapter 3 it can be concluded that there are no substantial differences between Standard
conditions and Real-Life conditions that are relevant regarding the environmental impact
assessment and life cycle cost calculation of the “Business-As-Usual” (BAU) BaseCase (see
table below). The only parameter that has some influence on the results of the environmental
impact assessment and life cycle costs (but only on electricity use) is the Ballast Maintenance
Factor or BMF (see chapter 3, section 3.1.4) that is introduced in this study to compensate for
the influence of non-standard (testing) temperature-, and line voltage conditions and also the
influence on power consumption due to lamp- and capacitor ageing. For the BaseCase
calculations in this section, this correction factor is taken into account.
In chapter 8, sensitivity analysis on the BaseCase results is done for aspects on luminaire
lifetime (BaseCase = 30 yrs) and share of road infrastructure lit (BaseCase = 15%, 23%, 23%
for respectively road categories F, M, S).
Table 71 : Difference in inputs Real-Life versus Standard
Parameter Standard Real-Life Improvement Options
(section 3.1.1)
Lamp Gain
Factor (LGF)
(section 3.1.2)
Burning hours
(section 3.1.3)
Ballast Gain
Factor
(BGF)
(section 3.1.4)
Ballast
Maintenance
Factor (BMF)
1
for road categories F, M, S
4000 hrs / yr
for road categories F, M, S
1
for road categories F, M, S
1
for road categories F, M, S
Only relevant for CFL and
CMH luminaires in road
classes S5 and S6 (EN
13201-2) as part of class C in
this study and are resp.: 1,1
and 1,2. Because these CFL,
CMH luminaires represent
only marginal
market/stock-share, this
difference is considered
negligible.
= =
1
since no BAU-use of
electronic ballasts
0,95 for magnetic ballasts,
for road classes A,B,C
148
Might become relevant
for options where shifting
to more CFL, CMH
luminaires in road class
C.
Might become relevant
for options where shifting
to bi-level dim ballast
(1,33) or electronic dim
ballast (1,8)
For options where
shifting to electronic
ballasts, this BMF is 1.