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Sustainability Plan - University of Washington Tacoma

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<strong>Sustainability</strong><br />

Figure 2.12 summarizes current energy use at<br />

UW <strong>Tacoma</strong>.<br />

Type<br />

Average Annual Energy Use<br />

Electricity<br />

9,400,000<br />

kWh<br />

Natural<br />

Gas<br />

19,500,000<br />

kBtu<br />

Total<br />

15,115,000 kWh<br />

(51,600,000 kBtu)<br />

Average Annual Energy Cost ($) $443,000 $195,000 $638,000<br />

Average Annual Energy Cost per Area ($/GSF) $0.98 $0.43 $1.41<br />

Percent <strong>of</strong> Energy Use by Cost 69% 31% 100%<br />

Energy Use Index (kBtu/sf/year) 71 41 112<br />

Notes:<br />

1. Existing campus = 460,000 GSF<br />

2. Based on electric billing data from <strong>Tacoma</strong> Power for 2005-2006<br />

3. Approximately $40,000 in natural gas costs are currently being spent for heating during the summer months.<br />

Electricity and Natural Gas<br />

UW <strong>Tacoma</strong> receives electricity from <strong>Tacoma</strong><br />

Power from a 12.47kV primary metered service<br />

corresponding to a Schedule G (General Service)<br />

billing rate with a 1.8% discount credit for primary<br />

metering and customer owned transformation.<br />

Over the past 15 years, with the exception <strong>of</strong> the<br />

2000-2001 West Coast Energy Crisis, the cost<br />

per kilowatt-hour (kWh) from <strong>Tacoma</strong> Power<br />

has increased approximately 4% annually over<br />

the previous year’s rate. Taking into account all<br />

components <strong>of</strong> the overall billing rate (energy<br />

use, delivery charges, base customer charge,<br />

etc.), UW <strong>Tacoma</strong>’s electricity rate for 2008 was<br />

approximately $0.051 / kWh.<br />

Figure 2.12 | Existing Campus Energy Use and Cost<br />

Projecting a steady annual rate increase <strong>of</strong> either<br />

4% or 6%, Figures 2.13 and 2.14 depict the<br />

overall billing rate that can be expected over the<br />

next 30+ years for electricity and natural gas.<br />

Spring 2009<br />

<strong>University</strong> <strong>of</strong> <strong>Washington</strong> <strong>Tacoma</strong> - Infrastructure Master <strong>Plan</strong><br />

33

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