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6 energy cost and tariff analysis – Retrotec USACE User Manual

Page 59

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Chapter 5 37

Where to fi nd more information (Web site, data bank, document

archive, etc.).
The facilities for the assessment team (working space, meeting

room, Web access, copying, etc.).

Schedules (project manager)

Schedule for site work.

Meetings on site (outbriefi ng and others).

Schedule for reporting activities.

When the site staff will have the comment version of the report and

when the fi nal version will be distributed.

5.6 Energy Cost and Tariff Analysis

The assessment team should decide who will perform the energy cost and tariff
analysis based on the material given by the site staff. If the project manager
does not do this, it is not effi cient to give the material to everyone involved.
One member should study the material and inform the others of the key re-
sults.

All the members will need the following information:

What energy and water costs to use in the energy-saving calculations

What special features there are in the tariffs (e.g., if nighttime electric-

ity is remarkably cheaper than daytime energy)
How these costs may be affected by some of the suggested saving mea-

sures

The energy assessment should include an analysis of energy consumption,

energy costs, energy tariffs, and peak demand. This information is usually avail-
able from the energy supplier. The facility management’s energy monitoring
may include consumption data, but tariff and peak demand data is not usually
included in the monitoring.

The energy bills yield information that, when analyzed, may provide rec-

ommendations before the visit such as energy demand rescheduling, avoid-
ance of late payment penalties, and energy ratcheting errors.

Information obtained from utility billing includes (with examples)

Electrical rate data

Total yearly energy usage (kWh)

Total reactive charge (

, $)

Total electricity cost (

, $)

Total other cost (

, $)

Electricity costs (

, $/kWh)—daytime and nighttime, possibly

summer and winter