Campus Statstop
Bilger Addition (1975)
Bilger Addition was built in 1975. Per square foot it has the highest energy use on campus. It is using 4 times more electricity than other buildings on campus of similar size. The vast majority of the energy use, over 76 percent, is spent on air conditioning to cool the building. If we had known then what we know now about green building design, the building could potentially have been structured to take advantage of trade winds which provide natural cooling and numerous other techniques that are available to architects today. Many of the buildings on our campus need to be re-engineered and retrofitted to produce more energy efficiency, and Bilger Addition is just one example.
St. John Lab A&B (1967)
St. John Lab is another example of high energy use. At over 70 kW/year per square foot, this building must also be re-engineered and retrofitted to become more energy efficient. As with Bilger Addition the vast majority of the energy use, 76 percent, is spent on air conditioning. Lighting comprises 14 percent of the energy use, and the remaining 10 percent is spent on miscellaneous power.
Holmes Hall (1972)
Holmes Hall uses almost 60 kWh/year per square foot. The vast majority of the energy use, over 64 percent, is spent on air conditioning to cool the building. Lighting comprises 14 percent of the energy use, and the remaining 10 percent is spent on miscellaneous power.
Watanabe Hall (1972)
Watanabe Hall uses over 58 kW/year per square foot. The vast majority of the energy use, over 82 percent, is spent on air conditioning to cool the building. Lighting comprises 8 percent of the energy use, and the remaining 10 percent is spent on miscellaneous power. You can see this is getting repetitious, but it is an issue worth repeating. We need to commit to becoming more energy efficient, and these examples highlight some specific examples of why this is needed so desperately.
Biomedical Sciences (1967)
Biomedical Sciences uses almost 57 kW/year per square foot. The vast majority of the energy use, over 76 percent, is spent on air conditioning to cool the building. Lighting comprises 11 percent of the energy use, and the remaining 13 percent is spent on miscellaneous power.
Post Building (1996)
The new Post Building, built in 1996, is also a high consumer at over 40 kW/year per square foot. Air conditioning comprises a smaller percentage of the energy use than the previous building mentioned - approximately 42 percent is spent on air conditioning to cool the building. Lighting comprises 28 percent of the energy use, and the remaining 30 percent is spent on miscellaneous power.
Saunders Hall (1973)
All the previous buildings mentioned were laboratory buildings. Saunders Hall, by contrast, is a non-laboratory building yet as you can see it still uses over 37 kW/year per square foot of electricity. Air conditioning comprises 42 percent of the energy usage, lighting 46 percent and miscellaneous power 12 percent. In this case, over 50 percent of the energy usage could be reduced by behavioral change and by motion detectors on the lights.
† source: Chancellor's Energy Summit, Tuesday, October 24, 2006, "Chancellor's Energy Summit Speech", Denise Konan
Summary of Electricity Use at UH Manoa
Per building electricity use vs building Sq. Ft. of 7 buildings on the UH Manoa Campus. Although the Post Building uses the most electricity, it is the second most efficient building per square foot, closely following Saunders Hall. Bilger Addition is the most inefficient building per square foot; relatively, with its energy usage bar twice as tall as its square footage.
Although UHM do not use natural gas for heating, average electricity use between the 7 buildings (58.4 kW/yr/sqft) is 3.2 times higher than the 2005-2006 average electricity usage (18.4 kW/yr/sqft) at UC Santa Barbara. At UCSB, through its successful Energy Conservation Program, the Electricity and Natural Gas usage per square foot has actually decreased by 30% and 23% respectively since the late 1990s.
UCSB Annual Average Electricity Usage ‡
UCSB Annual Average Natural Gas Usage ‡
‡ source: Chancellor's Energy Summit, Tuesday, October 24, 2006, "3 Keys to a Successful Energy Conservation", Jim Dewey
Annual Electricity Bill at UH Monoa†
In 2005, UH Manoa spent 15 million dollars on electricity. That figure is projected to be 18 million dollars for the year 2006, which is paid for by the student tuition.
†
† source: Chancellor's Energy Summit, Tuesday, October 24, 2006, "Chancellor's Energy Summit Speech", Denise Konan