Despite our best intentions, sometimes things don’t go as planned. As part of its commitment to reducing stormwater impacts to our local streams, UConn installed a rain garden at Mansfield Apartments in 2010. Unfortunately, it was not maintained and the garden failed. Fortunately, a collaboration of several groups helped to renovate this garden and restore its functionality.
Rain garden before renovation. Turf dams had grown in and prevented water from entering, and all of the plants had died.
UConn’s landscape services provided heavy equipment to removed excess material from the garden, and they also provided stone for the “river channel” to prevent erosion. New plants were purchased with help from the Office of Environmental Policy though the UConn Campus Sustainability Fund. Students from UConn’s Natural Resources Conservation Academy (http://nrca.uconn.edu) used the garden as their project during their week-long natural resources field experience on campus. This exciting program brings high school students from around the state to UConn to learn about many different aspects of natural resource conservation. Working with Mike Dietz, students replanted and mulched the rain garden, and prepared a presentation about the project to all of the parents on the final day of the NRCA.
So in the end, functionality has been restored to a failed rain garden, and the project turned into positive learning experience for an outstanding group of students!
Michael Dietz, PhD
Water Resources Educator
CT Nonpoint Education for Municipal Officials (NEMO) Progam/CT Sea Grant Program
University of Connecticut
UConn’s Climate Action Plan (CAP) has led to the implementation of several notable projects and initiatives. The CAP outlines plans to improve sustainability under the following categories: transportation, energy, and sustainable development. In Spring 2012, UConn added an adaptation section to work in conjunction with its mitigation strategies. This section is focused on UConn’s research, outreach and service roles, as we seek to provide resources for improving the climate resiliency of communities throughout the state and region. The mitigation strategies in UConn’s CAP serve to identify the emissions reduction benefits and cost effectiveness of potential action items. The Office of Environmental Policy’s current emissions targets call for a 20% decrease in emissions by 2020 and 30% by 2025. UConn’s overall progression includes:
Class III Renewable Energy Credits (RECs) generated by UConn’s Co-Generation Facility, sold to finance energy efficiency projects across campus
134 re-lamping projects completed for more than $700,000 per year savings in energy costs and over 5,000 Tons eCO2 avoided
19 retro-commissioning projects completed for $2.2 million per year savings in energy costs and more than 12,000 Tons eCO2 avoided
LEED Silver certification requirement for all new building and renovations over $5 million
Several variable-frequency drive (VFD) projects optimizing heating and cooling in buildings for around 1,000 Tons eCO2 avoided
Long-term electricity purchasing agreement with ConEd for 40% of purchased electricity comprised of renewable energy
Over 15% decrease in water consumption, despite 23% growth in user population from 2005-2014
Agricultural/organic waste composting facility operating at maximum load of 800 tons per year
Connecticut Institute for Resiliency and Climate Adaptation (CIRCA) established in January 2014
400 kW fuel cell and 7 kW solar array, providing electricity, heating, and cooling to the Depot campus
8 kW solar array on top of the reclaimed water facility
Department of Energy’s Workplace Charging Challenge pledge signed: 5 active EV charging stations and an expanding EV fleet
Transportation fleet now includes 15 hybrid vehicles and 12 plug-in EVs, including the EStar campus van (15% of the light-duty fleet)
UConn is still on track to meet its 20% interim reduction goal by 2020. This is being achieved primarily through on-going LED re-lamping projects in buildings, parking lots, and walkways, and with the replacement of old, inefficient steam pipes. These projects are expected to be completed between 2015 and 2020 and will yield an annual 13,265 ton reduction in carbon dioxide emissions. With all of these developments, UConn continues to strive toward carbon neutrality and a reduction of greenhouse gas emissions in the years to come. UConn’s Office of Environmental Policy uses the University of New Hampshire Campus Carbon Calculator (CCC) to store and track greenhouse gas information.
Electricity, heating, ventilation and air conditioning for buildings account for over 80% of the university’s carbon footprint based on current calculations which do not fully account for scope 3 emissions. As it can be seen above, a 12.9% decrease since 2007 is observed when the effects of natural gas curtailment are included. Curtailment occurs when the weather is especially cold and demand on the natural gas pipeline is high. This forces UConn to burn fuel oil instead of natural gas. On average, each day of natural gas curtailment results in 50,000 gallons of oil being consumed by the co-generation plant (a net release of 250 tons eCO2 per day*).
When natural gas curtailment is ignored, an 18.1% decrease in eCO2 emissions since 2007 is observed. It can be noted that the direct emissions sources from the university are decreasing, but with more cold weather affecting the local area, the amount of curtailment days has continued to increase. In the winter months of 2015, there were 30 days of natural gas curtailment, compared to 14 the prior year, and only 3 in 2012. Fortunately, the natural gas infrastructure in Connecticut is being expanded, so it is likely that we will not have further curtailment days next winter.
In addition, new building construction has accounted for a majority of Direct Source Emissions increase in recent years. A breakdown of UConn’s emission sources can be seen below.
*In recent years, each day of natural gas curtailment was estimated at an extra 500 tons of eCO2 per day. This has been adjusted to 250 tons of eCO2 per day based on conversations with compliance staff.
What is a wooden nickel you may ask? A wooden nickel is a small token that you receive at the UConn Co-op when you choose not to use a plastic shopping bag to carry your purchases. You can then insert this wooden nickel into one of four bins that each represent a different charity. Every time you do this, five cents are donated to that charity at no cost to you! The charities to choose from are the UConn Campus Sustainability Fund, Joshua’s Tract Conservation and Historic Trust, World Wildlife Fund, and UConn’s Sandy Hook Memorial Scholarship. The Co-op donates the monetary equivalent of the sum of the tokens in each bin to their respective charities. This program is formally known as the Co-op Cares Bag Program, and has drastically reduced bag use since it was started in 2008. By four months into the program, the Co-op had collected a total of 22,300 wooden nickels in the bins, equaling over $1,100 in donations! Since the cost of a plastic bag is roughly five cents, the Co-op decided to turn that spending around and give back to the community, all while reducing its carbon footprint! Although the driving force of the program is to reduce the consumption of plastic bags and to produce less pollution, you can also participate by donating your own money.
We challenge you to rethink your shopping habits and try out an alternative method of carrying your purchases out of the store. By using reusable bags, backpacks, or even just your good ole’ hands, we can work together to make plastic shopping bags a thing of the past.
On March 25, 2008 President Hogan signed the American College and University Presidents Climate Commitment (ACUPCC). This pledge led way for UConn’s Climate Action Plan: a comprehensive outline that strategizes and maps out sustainability initiatives to help UConn reach its goal of carbon neutrality by 2050. Carbon neutrality is defined as proportional amounts of carbon released and carbon sequestered. This can be achieved through carbon offsets such as our Co-gen facility or something as simple as planting a tree. Realistically, however, carbon neutrality does not mean a zero carbon footprint. For UConn, the aim is to have the 2050 carbon emissions 86% below our 2007 levels. One of the very first initiatives implemented at UConn to lower GHG emissions was the adoption of our own Campus Sustainable Design Guidelines. These guidelines apply to both the construction of new buildings as well as the renovation of preexisting buildings.
The Sustainable Design and Construction Policy requires a LEED (Leadership in Energy and Environmental Design) silver certification as a minimum performance standard for all projects that exceed $5 million. The U.S. Green Building Council developed LEED to act as an international green building certification system. LEED buildings offer savings in water and energy, reduce GHG emissions, improve air quality to promote health safety for occupants, and lower operating costs.
Oak Hall
Most recently, the construction of two new buildings at UConn, Laurel and Oak Hall, have been completed that fulfill the LEED silver requirement. Oak Hall is set next to Homer Babbidge Library at the site of the former Co-op. Laurel is located where the Pharmacy building was originally constructed. These locations prevented the clearing of forests, wetlands, and other natural environments. There are several sustainable features that are important to note. From the outside, porous pavement reduces storm water runoff and flooding by providing storage and infiltration during storm events and a bio retention basin reduces harmful storm water runoff by collecting and holding storm water. The area is lined with native vegetation that provides habitat and food for local species. To reduce transportation CO2 emissions, biking is encouraged. There are 132 bicycle rack spaces available to facilitate bike transit.
Moving inside the building, the focus is on increased energy and water savings. The bathroom offers dual flush toilets and electric hand dryers to reduce paper waste. The combination of all water efficient features is anticipated to reduce water usage by 48%. The high performance windows both increase natural lighting which reduces energy costs and provide insulation through window glazing which reduce heating and cooling needs. Laurel is expected to have 16% energy savings and Oak is estimated to have 18% energy savings.
Visually speaking, LEED buildings are most notable for the recycled content and renewable materials that comprise their exterior paneling and interior walls and floors. Oak Hall uses bamboo for wall panels, recycled copper for the exterior siding and regional bricks. The bamboo is more sustainable than wood because it only take 3-5 years to harvest, the copper is made up of 80-95% recycled content, and the bricks are produced within 500 miles of campus. Approximately 75% of construction waste was diverted from landfills and reused or recycled.
Beyond sustainability, LEED buildings also have health benefits. Indoor environmental quality is improved through green cleaning products that are biodegradable, have low toxicity and low volatile organic compound content (VOC), and have reduced packaging. All plywood is formaldehyde-free and adhesives, sealants and paint have low or no VOC. Both Oak and Laurel are definite eye catchers. These buildings are not only environmentally friendly and cost effective but also aesthetically pleasing. It is something to appreciate that sustainability can be characterized as modern and hip. For those interested in seeing how these LEED buildings affect UConn’s GHG emissions, the Office of Environmental Policy is planning to upload energy and water saving dashboards online.
Here are some examples of the sustainability features in Oak and Laurel Halls:
This past October 24th was the 10th annual Campus Sustainability Day (CSD). CSD is an occasion for college and university campuses to celebrate the unique role they play in the movement towards a sustainable society. Sponsored by the Association for the Advancement of Sustainability in Higher Education (AASHE), CSD is a national event with 151 institutions participating from coast to coast. This was the first year that the University of Connecticut joined in.
As a center of higher learning and forward thinking, UConn has a growing culture interested in practicing and spreading awareness about sustainability. From student organizations to faculty and staff initiatives, UConn has distinguished itself as one of the “greenest” schools in the country (as we were proudly recognized by the Sierra Club!). The contributors to UConn’s CSD were equally diverse, including sustainability staff from the Office of Environmental Policy (OEP), the EcoHouse Learning Community, Green Grads, EcoHusky Student Group, Spring Valley Student Farm, and even Ballroom Dancing Club.
The first part of CSD focused on sharing information about the various opportunities available for students to get involved in the green movement on campus. This was a great opportunity for these groups to advertise their ongoing activities and projects. Tables, tents, and displays were set up on Fairfield Way. Participants brought games, produce, and a range of information for students to take on their way through campus. The fair-style event provided a physical representation of the sustainable movement at UConn.
The second component of CSD was a review of UConn’s Climate Action Plan (CAP) by sustainability intern Emily McInerney. The CAP is a guidance document that is a product of the American Colleges and Universities Presidents’ Climate Commitment (ACUPCC) intended to outline steps to lead UConn to carbon neutrality by the year 2050. Emily gave a brief presentation on the history of the CAP, its progress since implementation in 2009, and what the future holds in light of the goals it sets out.
The talk set the stage for a breakout session in which the (mostly undergraduate) crowd formed groups to discuss the student-centric aspects of UConn’s CAP and sustainability initiatives. Conversation focused on ways in which students can learn about and get involved with sustainability programs on campus. Groups identified information gaps, including the general lack of awareness about electronic waste recycling and car share programs, and pressing campus issues like food waste, recycling, and sustainable transport.
Finally, the discussion turned towards ways to address these problems or promote the progress that UConn has made. Including sustainability-related information early in students’ UConn experience such as during freshman orientation or campus tours received widespread support, as did adjusting the parking fee structure to encourage alternative transit or carpooling. Students suggested that simple relatable messages could be effective in addressing issue like food or electricity waste.
Overall, CSD proved to be a success. The greatest accomplishment of 2012’s CSD was the collaboration and communication that occurred between the diverse factions of students and organizations. Networking, conversation, and education were focal points of the day’s events and these exchanges between the different parties will be a platform for which UConn can continue to build itself, both in practice and in philosophy, as a school dedicated to long-term sustainability. We look forward to participating in 2013!
In my two years as a Sustainability Intern with the Office of Environmental Policy, I have been placed in a very interesting role. I have compiled the three greenhouse gas emission inventories for the Storrs campus from 2009 up though last year, 2011. This task has proven to be something I can look back on and be proud of and something that I think the University can also look back on and be proud of.
History and Purpose
The greenhouse gas inventory documents all the sources of emissions from the University that contribute to global warming, such as carbon dioxide, methane, nitrous oxide, and many others. The University has voluntarily tracking this information to some degree since 2003 although thorough inventories did not begin until 2007.
In 2008, then President Michael Hogan made the University a signatory of the American College and University Presidents’ Climate Commitment (PCC) at the request of large student support. The PCC is a pledge by institutions of higher education to reach a goal of climate neutrality by the year 2050. Signatories must have submitted an outline of how they would reduce their emissions to the 2050 target in a document known as a Climate Action Plan in order to become a part of the PCC. Additionally, participating institutions must provide annual greenhouse gas inventories and biannual progress updates.
Making Progress
In general our largest source of emissions each year has been from on campus stationary sources such as the cogeneration plant (which supplies most of the Storrs campus with electricity and steam), boilers (to produce additional steam for heating), chillers (which produce chilled water for cooling buildings), and generators (for emergency power). In fact, going back to 2001, this source of emissions has never accounted for less than 75% of the total campus emissions.
[/caption]This indicates that decreasing the demand for electricty, steam, and chilled water on campus is worthwhile strategy for reducing the amount of emissions generated each year.
The University of Connecticut has gone to great lengths to make its buildings significantly more energy efficient over the last few years. Some of the energy-saving initiatives have included replacement of lighting fixtures and bulbs, the annual EcoMadness energy conservation competition, and the sustainable design and construction guidelines.
In 2010, 77% of emissions come from either fuel burnt at the cogeneration plant or from stationary sources like generators and chillers.The above graph shows that over time UConn has been able to produce less greenhouse gas emissions on a per student basis over the years. This is especially amazing considering that the student population at UConn has grown by nearly 40% over that time and campus building space has grown by just over 30%. One key to this success has included the construction of the cogeneration system in the central utility plant, which provides UConn with electricity and steam in a more efficient manner than the grid can. Another has been the University’s policy requiring major construction and renovation projects since 2008 to meet a minimum LEED Silver rating, such as the Burton-Schenkman football training complex. The University also has small emission contributions from other categories like transportation, fertilizer application, and refrigerants (which are actually incredibly potent greenhouse gases). Some of the emissions are offset by the UConn forest and its new composting operation.
[caption id="" align="aligncenter" width="481"] A line has been fitted over the past four years’ data to approximate the trend in how UConn’s emissions have been going.
Form 2007 to 2010, the overall emissions dropped by about 6,000 MT eCO2 per year, which is the equivalent of taking about 120 passenger cars off the road each of those years. This is a 3% annual decline.
This is a promising trend considering the fact that the number of full-time students increased 6% over those three years, part-time students by 10%, and summer students by 68%. Although there was a significant drop in building space from 2007 to 2008, building space increased from 2008 to 2010 increased by 3.5%.
Summing It All Up
Working on the greenhouse gas inventory has been immensely rewarding. I personally worked on the greenhouse gas inventories as far back as 2008 and I was the primary intern who worked on the 2009-2011 inventories. Not only am I proud to see my work produce these useful metrics for evaluating our steps towards sustainability, but I am also proud to have been a part of something that connects so much of the University together.
For each inventory I had to contact tens of people for information on a huge variety of sources. I received data from sources involved in generating power on campus as well as sources involved in generating compost (which now includes the agricultural compost facility, the floriculture program, many of the campus dining halls, the Spring Valley Farm living and learning community, and the EcoGarden student group). There is just something incredibly exciting to take bits and pieces from so many staff and faculty members and then have the opportunity to show them how their contribution to campus sustainability fits in at our annual spring Environmental Policy Advisory Council (EPAC) meeting.
I am excited that in less than one month I can honestly tell them that our University has reduced its emissions by 9% in three years, even as campus and the student body grew. And most exciting is that the 2011 inventory is nearing completion and it is so far promising our largest reduction to date.
Even when I felt things were not working in favor of sustainability on campus, I could still look at the inventory and know that the University has made and is still making a great and concerted effort to reducing our environmental footprint — and I would hope everyone can see this as well. (We did after all finish 16th in the Sierra Club Cool Schools survey last year, in part thanks to our third best overall score of 9.5/10 in energy efficiency — so even if we accidentally leave a few lights on, rest assured that we’ve done our best to make them “waste” as little energy as possible.)
So ultimately I would remind everyone, as an outgoing intern and as a graduating senior, that you must not let good be the enemy of perfection; take time to appreciate your progress every so often. But likewise, do not rest on your laurels, especially when you have shown in the past just how much you can accomplish.
Written by…
Chris Berthiaume is a senior in Environmental Engineering and a second year intern with the OEP. His major projects have included the greenhouse gas inventory, updating the website, social media engagement, and the assisting with the 2012 EocHusky 5k.
What is a wooden nickel you may ask? A wooden nickel is a small token that you receive at the UConn Co-op when you choose not to use a plastic shopping bag to carry your purchases. You can then insert this wooden nickel into one of four bins that each represent a different charity. Every time you do this, five cents are donated to that charity at no cost to you! The charities to choose from are the UConn Campus Sustainability Fund, Joshua’s Tract Conservation and Historic Trust, World Wildlife Fund, and UConn’s Sandy Hook Memorial Scholarship. The Co-op donates the monetary equivalent of the sum of the tokens in each bin to their respective charities. This program is formally known as the Co-op Cares Bag Program, and has drastically reduced bag use since it was started in 2008. By four months into the program, the Co-op had collected a total of 22,300 wooden nickels in the bins, equaling over $1,100 in donations! Since the cost of a plastic bag is roughly five cents, the Co-op decided to turn that spending around and give back to the community, all while reducing its carbon footprint! Although the driving force of the program is to reduce the consumption of plastic bags and to produce less pollution, you can also participate by donating your own money.
