The graph below shows the actual electricity usage (kWh) used by buildings that
were included in the weather-normalization analysis for 2012 through 2015. As
shown, Alpine Bank has experienced a reduction of more than 360,000 kWhs
between 2012 and 2015 (4,865,770 kWhs in 2012 vs. 4,505,194 kWhs in 2015).
Almost all of the savings were driven by the Grand Junction tower and Central
Operations locations, which have reduced electricity usage by approximately
240,000 and 95,000 kWhs respectively. Because there is little correlation at any
location between cooling degree days and kWhs for years 2012 through 2015, the
expected electricity usage is generally level (as shown with the tan line).
The graph below combines all energy usage together into million British thermal
units (MMBtus) for 2012 through 2015. As shown, Alpine Bank experienced a slight
reduction in total MMBtus during that time (30,816 MMBtus in 2012 vs. 29,938
MMBtus in 2015). In 2015, Lotus Engineering and Sustainability projected that
Alpine Bank would have used more energy than it did due to the weather patterns.
The difference can be associated with Alpine Bank's energy-efficiency efforts.
2012-2015 Normalized Data vs. Actual Data (Total kWhs)
4,700,000
4,500,000
4,300,000
4,100,000
2012 2013 2015 2014
5,100,000
4,900,000
Normalized Totals Actual Totals
Electricity Usage
2012-2015 Normalized Data vs. Actual Data (Total MMBtus)
31,000
29,000
27,000
25,000
2012 2013 2015 2014
35,000
33,000
Normalized Totals Actual Totals
Thermal Usage
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