Chapter 6 Info Guide

It is important to consider a number of questions about the building before assessing its lighting efficiency potential, including:

• Does the host company own or lease the office space?

• If the host company leases offices space, does the company pay the utility bill or is it included in the rent? (See Chapter 5: Interpreting electricity bills and benchmarking energy use.)

• Is the landlord (if not the host company) interested in pursing efficiency reductions for tax credits or other financial incentives?

• Who in the host company’s organizational structure makes lighting design and purchasing decisions?

• What upgrades have been made to lighting in the last three to five years?

• How often is the office space renovated?

• How much outdoor lighting is required for security?

• Are there any official lighting policies? (e.g., lights are dimmed after 6:30 pm)

• How are lights controlled? Which systems are automated and which are manually controlled?

• What are the responsibilities of cleaning staff with regard to lighting? Are cleaning staff receptive to requests?

In addition, a rough estimate of lighting savings potential can be calculated simply by walking through the office during workday hours and then again after office hours and noting lighting levels. A blueprint of the floorspace is useful for this exercise. During a walkthrough, the following questions should be considered:

• For each room or zone, are the lights on during the day/evening? When rooms are
unoccupied? Is the lighting adequate? Excessive?

• What is the type and wattage of lamps used in the building?

A lighting engineer can offer more detailed assessment capabilities as well as a broader range of solutions.

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