Letter of Intent
Project Size: 
Large, >$1,000
Estimated Amount to be requested from the CSF: 
Letter of Intent: 

Goal:  To investigate the viability of implementing sink aerators and LED or compact fluorescent lights in growth chambers in UW labs. Our first goal is to implement a case study examining the efficacy of replacing current growth chamber lighting systems with energy efficient LED growth lights. Although LED lighting may be a simple way to reduce energy usage in labs, there is limited research available on the reliability of such growth lights in a lab setting. This often leads to apprehension from researchers due to concern for the quality of their results when using this technology. Additionally, some researchers may not even know this technology is available. Our case study will provide information that can be used by campus organizations (e.g. Environmental Stewardship and Sustainability Office, individual labs, etc.) to evaluate the viability of introducing LED growth lights to their own facilities. The second goal of this project is to install as many faucet aerators in the University of Washington’s Oceanography building and monitor the reduction of water usage in the facility. If results demonstrate a reduction in water usage, we aim to present this study to the Environmental Stewardship and Sustainability Office, who could then use this study to encourage other departments to install faucet aerators as well. This information could also be used to update building codes for all buildings on campus. Research Questions: How do faucet aerators affect water usage in the Oceanography building? Are LED growth lights a viable alternative to current lighting systems in growth chambers within the Oceanography building?   Requirements/Preferences: Kate and I, as students in Sustainability Studio, hope to implement this project as soon as possible. In order to accomplish our project for this course, we would prefer to receive funding as soon as possible. We are also pursing funding from Seattle City Light, and have contacted their rebate program facilitators to see if our project can qualify for rebates from them.   Budget: LED Growth Lights Replacement Project One LED grow light, produced by the manufacturer AgroMax, costs $7.95 before shipping. Kate and I hope to implement this project in at least one growth chamber, which has 16 bulbs. The cost for replacing the lights in the one growth chamber would amount to $127.02. We have the opportunity to replace current fluorescent growth lights in four growth chambers, however. To fund this endeavor, there are 39 lights and the cost (before shipping) to replace them with LED growth lights would amount to approximately $310.05. The ordering page for growth lights can be found at http://www.htgsupply.com/Product-6400K-AgroMax-4ft-T5-Grow-Bulbs.asp   Faucet Aerator Replacement Project Faucet aerators range in price, depending on the need of a male or female component. After touring the Oceanography department’s laboratories, we found that the faucets were not standardized in size or composition. Most faucets were outfitted with plastic tubing attached by clamps to reduce splashing. In order to complete this project, we will need to purchase faucet aerators, plastic tubing, and materials to clamp the tubing over the faucet. Aerators range in price, generally between $2.50-$8.00 each before shipping. See http://www.amazon.com/Faucet-Aerators-Kitchen-Bathroom-savers/lm/R13VLP9... or http://www.lowes.com/Faucets/Faucet-Repair-Parts/Faucet-Aerators/_/N-1z1... for examples. We hope to outfit as many faucets as possible with aerators in the Oceanography building. Receiving between $50-$100 would allow us to update a significant number of faucets with these energy saving devices.

Contact Information
Primary Contact First & Last Name: 
Kate Stevenson
Full Proposal

This will display after the CSF committee has reviewed and approved your LOI, and after you have received the link to edit your application.

Executive Summary: 

Our ENVIR 480 Sustainability Studio project group partnered with Shelly Carpenter, lab manager at the Marine Sciences Building, to focus on reducing the water and energy consumption of commonly used lab equipment. We will install LED bulbs in one growth chamber in the Marine Sciences Building and faucet aerators throughout the building to test the viability of implementing these technologies in more campus labs.

Labs are hesitant to incorporate these products because no case study exists to demonstrate successful implementation. We have consulted with experts from several research institutions to identify the most beneficial, convenient, and cost-effective products available. This project will provide an example for other labs to reduce waste and earn net savings. It will also contain an educational component aimed to help other students organize similar projects in other facilities.

Total amount requested from the CSF: 
$2 247
This funding request is a: 
ItemCost/ItemQuantityTotal Cost
Philips LED T8 Tube GA$49.58 (plus tax)10$495.80
Faucet Aerators$5.00 (plus tax)70$1,400.00
P3 International P4460 Kill A Watt EZ Electricity Usage Monitor$25.61 (plus tax)2$51.22
Shipping + Tax$300.00
Project Completion Total: 
$2 247
Sustainability Impact: 
Energy Use
Sustainability Challenge: 

Campus laboratory facilities are major contributors to water use, energy consumption, and waste generation. Due to the wide variety of equipment, large appliances, sinks, and disposable products labs require, in many cases, sustainability is compromised to maintain research quality, expedience, and a smoothly running facility. This project aims to provide campus labs with simple sustainability solutions to quickly and easily reduce consumption without sacrificing productivity. In order to provide reliable advice on our website, we would like to implement LED grow lights and sink aerators in the Marine Sciences Building as a case study working towards a large-scale implementation.


There are approximately 70 sinks in the Marine Sciences Building, none of which have faucet aerators. Faucet aerators are a simple and inexpensive way to save on utilities and reduce water consumption. Installation takes less than five minutes per sink, and removal can be performed just as quickly.  Mass implementation of sink aerators throughout campus would significantly reduce water use, in agreement with the goals of the Climate Action Plan and the UW’s commitment to sustainability.  Considering the cost reduction based on a 30% reduction in water flow (taking into account filling beakers and tasks that are not affected by reduced water flow) the one-time cost of 70 sink aerators would be $1,400.00, which will last many years. UW plumbing will advise our group on the proper brand/model aerator for this facility.

On the 3rd floor of the Marine Sciences Building there are five growth chambers, each of which consumes a substantial amount of energy. The growth chambers currently use 32-watt T8 fluorescent bulbs, which we would like to replace with 19-watt LED bulbs. On their own, these bulbs would save $0.84 per month. However, we have communicated with Seattle City Light regarding their commercial energy efficiency rebate program. This program allows for $0.02-$0.23 rebate per kWh saved. They expressed enthusiasm towards working with us if this project leads to an LED conversion on a larger scale than one growth chamber for a limited period of time. Based on a conservative rebate estimate ($0.125 per kWh saved) an LED conversion in just five growth chambers would save $25.97 per month. This program would only apply for mass implementation of energy saving bulbs and must be negotiated prior to installation. If this case study is successful, this mass implementation could be considered, potentially saving hundreds of dollars per month while eliminating waste.

These figures are based on an average 30 bulbs for the five chambers on the third floor, which are in use 517 hours per month, and the cost of energy in Seattle in October 2012 ($0.092/kWh). It should also be kept in mind that these bulbs reduce the light bulb waste stream by 11% due to increased product lifetime and they do not contain harmful mercury. LED bulbs also produce less heat, reducing cooling costs in refrigerated cold rooms. It is important to note that retrofitting fixtures and installing aerators are reversible changes that will not damage the building or equipment.

Explain how the impacts will be measured: 

A faucet aerator is a sink attachment that reduces water flow. Shelly Carpenter has confirmed that a water meter is scheduled for installation at the Marine Sciences Building, which would allow us to measure the change in water consumption after the implementation of sink aerators. We will measure the impact of this portion of the project by checking the flow rate before and after implementation and by calculating gallons saved based on water meter readings.

Growth chambers are essentially walk-in cold rooms with shelves and grow lights used for algal culturing. We will measure the impact of retrofitting the current fixtures with LED bulbs by measuring the light output with a standard PAR probe, attaching power meters, and using these readings to calculate kWh of electricity saved. We will also create a revised cost-benefit analysis based on these findings. Finally, we will be able to document any positive or negative effects of lighting on algal culture growth rates based on the change in output spectrum from fluorescent to LED lighting. Since, there is no research literature available on topic, this represents a barrier for some labs to adoption of LED lighting for algal culturing.

Education & Outreach: 

Our project would be publicized via a memo and website sent to all lab managers on campus. This memo will describe our project and provide the link to a website with the details of our case study, background information, and suggestions for simple ways to improve lab sustainability. The goal of our deliverables is to raise awareness for these products and emphasize the benefits they provide.

Within the Oceanography department, this growth chamber will advertise itself. By providing an LED growth chamber facility, we provide students and faculty with a facility that was previously unavailable. This facility will open doors for other LED-centered student projects so that other students have the chance to experiment with LED lighting.

This project will not only benefit students, but will be educational for the scientific community as a whole. In literature searches and correspondence with more than fifteen phycology experts, we could not find a single article that directly addresses the comparative effects of LED and fluorescence in algal culturing.  This project is not exactly research, but it has the potential to prompt more specific research with sustainability applications to benefit the greater good.

Although LED technology is still in its infancy, scientists and engineers have made strides in developing high-intensity, low-energy light sources. As this technology progresses, costs will decrease and there will inevitably be a shift towards LED grow lights across the scientific community. In fact, LED lights provide more manageable and precise lighting to imitate natural light, maximize growth, or create a highly specific environment for samples. According to the researchers we contacted, there is a consensus that LED grow lights are superior to fluorescent lights because the emitted light spectrum can be customized by the manufacturer, unlike fluorescent lights, which offers a fixed, sub-optimal spectrum for phytoplankton growth. In order to facilitate and expedite this collective shift to a more sustainable grow light, our project would draw attention to the viability and superiority of cutting edge LED technology.

Student Involvement: 

This project is student-centered because it was designed by students in the Fall 2012 ENVIR 480 Sustainability Studio course, focusing on green labs. Prior to our CSF proposal, our team has already done quite a bit of work to plan this project. In ENVIR 480, we created a cost-benefit analysis, wrote a memo, provided ESS with a sustainability snapshot, met with clients at the Marine Sciences Building several times, and gave a presentation to faculty members to introduce our project, which was received with enthusiasm.

Making this project a reality shows that students have the power to better their own campus. We hope that this project will inspire other students to come up with sustainability projects and utilize campus resources to make these projects happen. In order to communicate the success of this project with fellow students, we hope that the PoE Blog, The Daily, and other campus news sources will publish an Op-Ed on this project with details about the CSF process and the Sustainability Studio course to further connect us with students.

Although this project would not create any specific student jobs, it sets an example for fellow students to do a similar project within their own department. Our project website will include a page for students interested in continuing our project in other campus labs. The page will provide specific details, contacts, resources, and tips that we learned from our experience. 

TaskTimeframeEstimated Completion Date
Install aerators, take initial measurements, install LED lights, measure light output, hook up power meter(s)Week 1*Dependent upon date of grant allocation
Start new cultures, zero output power meterWeek 2
Take measurementsWeek 3
Take measurementsWeek 4
Take measurementsWeek 5
Compile data, analyze resultsWeek 6
Create website/memoWeek 7
Create website/memoWeek 8
Create website/memoWeek 9
Amount Awarded: 
Project status: