[Equest-users] Exterior Lighting Power Allowances

[Ömer Moltay]

Dear All,

Although this has always looked straight forward during energy 
modelling, new questions have been raised lately among my colleagues 
about how this issue should be approached in modelling Baseline cases.

Let's say that we have a 1000 m2 landscaped rectangular area in our 
model, which is neighbored on one side by a walkway. Bollard type 
luminaires placed on the landscape area along the walkway illuminate 
both the walkway and the landscaped area. Functionally of course the aim 
is to illuminate the walkway, but the bollards also provide an 
aesthetical lighting for the plants in the landscape area.

First of all, is there any allowance for landscape areas under 
90.1-2007? Do plaza areas include landscape areas?

Second, in calculating baseline power allowance, are we supposed to use 
the allownace for Walkways or for the landscape area?

Thank you for any replies,

Omer Moltay