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Final Report Lot 9: Public street lighting - Amper

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Table 20:Estimation of maintenance and installation cost related parameters<br />

EU25 average hourly labour cost including €31,83<br />

overhead<br />

Time required for installing one luminaire 20 min.<br />

(group installation)<br />

Time required for lamp replacement (group 10 min.<br />

replacement)<br />

Time required for lamp replacement (spot 20 min.<br />

replacement)<br />

Time required for maintenance including 30 min.<br />

ballast replacement<br />

2.4.4 Interest and inflation rate<br />

As regards the discount rates, which is the difference between interest and inflation, there will<br />

only be small differences in the EU. The official inflation rate is 2% and the interest rate (for<br />

consumer loans 45 ) is around 4%. This leads to a discount rate of 2% (VHK, 2005).<br />

45 Not the ECB long-term rate, which is around 2%, but the interest rate a consumer<br />

theoretically would have to pay for lending money to pay for a more expensive product.<br />

88

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