Final Report Lot 9: Public street lighting - Amper

8.1.1.12 Specific ecodesign requirements required for option 12 from chapter 7: Mercury
free HID lamps
This can be implemented by banning mercury use in HID lamps.
8.1.2 Scenario analysis
This section draws up scenarios 1990-2020 quantifying the improvements that can be achieved
versus a Business-as-Usual scenario.
In these scenario analysis, the expected trends 2010-2020 are estimated for the following main
parameters:
• Installed base of luminaires
• Annual sales of luminaires
• Annual sales of lamps
• Ey: annual electricity use by the installed base of street lighting
• FU: functional lumen output by the installed base of street lighting
• Life Cycle Cost (LCC) of new products (replacement + new street projects)
In the 'BAT scenario' the combination of individual options (1-9, 11, 13) is assumed because
they are complementary and all reduce LCC and increase energy efficiency. In the BAT
scenario option 10 (bilevel dimmable ballast) is not implemented because it is a low
performance alternative for option 11 (electronic, continuously dimmable ballasts). Option 12
(mercury free HPS lamps) is also not implemented because of the negative impact on LCC due
to its lower energy efficiency.
It is important to remark that some individual improvement options (2,3,5-9) would not always
result in energy saving but would result in more light on the street due to the 'Lock-in effect' for
replacement sales where light points cannot be relocated (see 3.3.1). The combination with
option 11 (electronic continuous dimmable ballasts) can overcome this problem by fine tuning
the lamp power to the exact required maximum level.
The 'Option 1 scenario' (retrofit HPS lamps) is treated separate in the analysis because
implementation is linked to the lamp life time (approx. 3 y) and EU25 impact is relative fast.
Other options (2-13) are linked to the long life time of the luminaire and the total EU25 impact
is therefore relative slow. Please note that options (10, 11) (dimming ballasts) could be
implemented faster when replacing only the ballast in existing luminaires, However this
scenario is not calculated because, due to the high actual cost, it is better to replace the existing
luminaire.
.
In the first subchapters these scenarios are given for BAU, BAT and option 1 retrofit HPS
lamps. In the last subchapter, the contribution of individual options is given.
As the trend in EU25 total impacts result mainly from changes in electricity use (parameter Ey),
a table representing the expected impacts and impact reductions due to BAT and individual
options in 2020 is given in the last subchapter.
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