HEIF Redwood Bowl lighting

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Things to change
1. Green Campus Program, add info.
2. Hief add a paragraph
3. Add to The Proposal
4. Re-organize the footnotes/references
5. Add more about the type of pollution
6. More about Bats
7. More about catwalks and lead poles
8. Change Expected Construction and Completion Dates
9. Add info from HEIF Meeting 12:00PM - 2:00PM November 6, 2009 Room 113 in the NHE
10. More Pictures?
11. Graphs?(tables)
12. Change The Hours
13. Anything Else??( change new system to Musco lighting or Proposed system.

HEIF Meeting 12:00PM - 2:00PM November 6, 2009 Room 113 in the NHE^[1] building

"Relight Redwood Bowl (RRB) project just received a green light to move ahead. Construction is slated to begin November 19".^[2]

Humboldt State University is changing the lighting system around their Redwood Bowl sports field in order to reduce emissions, light pollution, and energy consumption. Students of the Green Campus Programor (GCP) wrote a proposal that was submitted in spring 2009 to gain interest in the subject of retrofitting the Redwood Bowl. This site is dedicated for everyone interested in understanding the current lighting, future lighting, and reasons for retrofit.

Green Campus Program

The Green Campus Program is a movement directed toward students to lead energy efficient campains at their university. Currently this student-implemented program is at 12 UC and CSU campuses including Standford University. The goal for the interns of The Green Campus Program is to create ideas for energy efficient projects. They also strive to educate the campus about the comparison between the environment and energy usage.

HIEF

The Proposal

The proposal titled "Relight Redwood Bowl: Saving Energy, Mitigating Climate Change, and Greening Humboldt State University" was proposed on April 1st, 2009 by three students, who are part of the Green Campus Program. Kale Roberts, Jamila Ghoul, and Sarah Schneider wrote this proposal to convince others to join their mission for a greener campus. The proposal received support by 22 various parties, including the president of Humboldt State University, Rollin Richmond. Rollin stated in a letter to the HEIF committee "I recognize relighting Redwood Bowl as an excellent energy improvement measure."The proposal's goal was to convince HIEF to give a contribution of $75,000. The proposal states various benefits to the environment and HSU.

Old System

The Old System consists of 60 fixtures on 8 lead based poles with 12, 1500-watt metal halide standard lamps on each pole. The current light usage for all the lamps together is 162,144 kWh/yr and the life expectancy of each light is 3,000 hours. It has been noticed that the catwalks^[3] to reach the lamps on the poles have become hazardous for repair workers. This causes problems for repair when multiple lights have burned out on a single pole. It has been stated by HSU electrician Jim Long that because each lamp costs about $125 and the cost of labor, it is more financially reasonable to wait till a certain number of lights have burned out on each pole. Figures 1 and 2 show pictures of our current lighting system.

The Hours

Between June 1, 2007 and May 31, 2008 the lights were used a total of 1126 hours.

New System

The Green Campus Program believed that Musco Lighting® (Musco) Sportscluster Green ™ system would be the best for Humboldt State University because of its reputation of energy efficiency. The system specialized for HSU has 60 fixtures of specialized 1500-Watt metal halide lamps, with an expected annual energy usage of 101,340 kWh/year. Each lamp from this system is meant to last up to 5,000 hours with a constant level of light at 60 foot-candles^[5], or FC. Each lamp is expected to light the track and field by 25 FC. These lights will be installed by Humboldt State University's Plant Operations or (PO) Plant Operations while under the supervision of a Musco representative. To monitor the system's energy consumption once the new system has been installed, GCP interns will use a device known as the ElitePro™ Recording Poly-phase energy meter. The device will allow both GCP and Plant Operations to record the overall efficiency of the new system.

The new system will cost HSU an estimated $261,370. These costs come from the material needed to make the lights($139,378), a monitoring device to keep data on how the system performs($1,600), and the initial installation and labor($120,392). Now the new system's cost is significantly higher due to the need to remove the old poles and replace them with non-lead based ones.

Figures 3 and 4 show Arcata Sports Complex's Lighting system. Their system is similar to what the Redwood Bowl will have and both are products from Musco Lighting®.

Comparison

The differences between the old system and the new system are expected to be noticeable to both Humboldt State University and the surrounding ecosystem.

For Humboldt State University, the new system is projected to reduce annual kWh consumption by 60,804 kWh, according to the Green Campus Program. If the price of energy is $0.24/kWh than we see a yearly saving of $14,592.96 for the university. The annual kWh saving will lower Humboldt State University's greenhouse impact of carbon dioxide by 796,525 pounds over 25 years or 31, 861 pounds a year. This helps with Humboldt State's mission of reducing costs and keeping earth a green planet.

The ecosystem is effected by the light pollution that the Old system emits, the New system will change this by reducing pollution with new technology. The amount of light pollution from The Redwood Bowl is due to its higher elevation relative to the surrounding town of Arcata. This causes a dispersion of light to fall over the town during evening events. During foggy nights the pollution increases due to light reflecting off water particles in the atmosphere. The light pollution from The Redwood Bowl also effects the animals which make their homes around the complex. A common creature that is active around the Redwood Bowl are bats. This artificial light was found to delay the emergence of juvenile bats, thus leaving them with less mass and a shorter wing span than bats away from artificial light. To relieve both the local town and the bat population around the bowl the new system will reduce light pollution by 50% because of the special manufactured lighting system.

Funding

The Green Campus Program came up with a request proposal for assistance from various organizations to help cover the costs to change The Redwood Bowl's lighting system. This request was presented to HIEF who granted $75,000 of the originally $261,370 needed for the project. GCP also put in an application to the UC/CSU/Investor-Owned Utilities(IOU)Partnership for $14,593 in rebate funding for the energy savings the project will yield. The cost of $171,777 is up to Plant Operations to pay.

Construction and Completion Dates

Originally the new lighting system was supposed to be installed summer 2009. There have however been setback due to new found safety hazards. The current lighting poles are lead based and it is a new goal to take them down. The eight poles will be replaced with 4 non lead based poles. Now the date of construction is set for November 19, 2009.

Terminology

Fixtures - An electrical device used to create Artificial light.^[7]
Foot-Candles - A unit of illuminance, equal to one lumen per square foot.^[5]
Lumen - A unit of measurement of Light.^[8]
Catwalks - An elevated service platform, used to change light bulbs.^[3]

Footnotes

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References

• Green Campus Program
  
• HSU Campus Map
  
• Plant Operations
  
• The Proposal for Redwood Bowl relighting
  
• Appendix J, Data table showing how long the lights were on.pdf
  
• Appendix K Photos
  
• Musco Green Light structure