A team of researchers will be measuring the impact of natural vegetation at the Solar Farm 2.0 grounds. Below the 31,122 bi-facial solar panels lie 54 acres perfect for pollinator-friendly plantings.

But how exactly does one calculate the plants’ effectiveness? How about: count the bugs.

Ben Campbell, an energy engineer at the University of Illinois Chicago, is part of a research effort that will do exactly that, and more. Their research will also address other matters at Solar Farm 2.0, including how the pollinator plants affect the efficiency of the solar panels’ power production, and how quickly and strongly the pollinator plantings grow.

Additionally, F&S Utilities & Energy Services are a support team member for the research project which will study the economic and ecological benefits of planting native and other flowering plants under and around solar arrays. In order to count the bugs, a few times a year researchers will catch flying insects over the course of a day. The insects they collect will be taken to the Bee Research Facility on the Urbana campus where they will be identified and archived, under the guidance of Dr. Adam Dolezal.

This might seem standard practice for a new test site with new plantings. What may surprise the reader is another research question: where and how many birds and bats will come around for feeding time?

“The research is driven by the solar industry’s questions about the colocation of solar power production and pollinator habitat,” said Campbell. “Our research seeks to understand what scale of habitat is necessary to have measurable impacts on pollinator, bird, and bat populations at utility-scale solar facilities, in addition to benefits in terms of increased power production or lifecycle costs of managing vegetation. We are excited to have the opportunity to test these questions in our own backyard at Solar Farm 2.0.”

Using acoustic and ultrasonic recorders, the team will record bird and bat abundance and diversity, respectively, over time, measuring wildlife elements until at least 2023.

The research project, led by Iris Caldwell at the Energy Resources Center at University of Illinois Chicago, is funded by the U.S. Department of Energy Solar Energy Technology Office. Her research team consists of the University of Illinois Urbana-Champaign, UIC, the Argonne National Laboratory, and the National Renewable Energy Laboratory. Six solar facility test sites have been selected for field research across Illinois, Indiana, Michigan, and Wisconsin. This includes the 12 MW Solar Farm 2.0 facility at UIUC. In partnership with F&S and Sol Systems (the site operator) the research team will evaluate the effects of the pollinator plantings on photovoltaic and ecological performance and compare operational costs with facilities that use conventional ground cover (usually turf grass). In addition, Solar Farm 1.0 may be used as a control site for comparison for performance and pollinator observation.

Earth Month is here! Can you believe it? I would like to first draw your attention to the iSEE Sustainability Calendar as a reference point for the many virtual and in-person events (maintaining COVID-19 safety and social distancing precautions) held this month and beyond. If you notice a missing event on the calendar, there is a link to submit an event yourself.

Here are a few highlights:

• TED Talk: Eco-Edition series - iSEE’s second TED Talk: Eco-Edition event, will be held from 7 – 8 PM CST, March 30. To complement our recent Plastic Free Challenge, this gathering will focus on plastic waste. Participants will view a prerecorded TED Talk, presented in September 2019 by Andrew Forrest: "A Radical Plan to End Plastic Waste." Afterward, all are invited to participate in a guided discussion and roundtable, hosted by Maddy Liberman (NRES/F&S Intern) and Shantanu Pai (ISTC/F&S). Registration is required; sign up here.
• iSEE Congress – “The Future of Water”, April 6, 14, 20, 23 at noon. Over a series of Zoom webinars, iSEE Congress – Spring 2021 brings together a diverse group of researchers, educators, journalists, and activists to dive deeper into the topic. Our modified “teach-in” will introduce the Illinois campus and community to cutting-edge thinking from highly influential scholars on topics ranging from drought to the global politics of water to pollution, public health, and biodiversity.
• Trash pickup event at Boneyard Creek, sponsored by iSEE and F&S, April 7, 3-5 PM. We will meet at 3 PM behind Engineering Hall and disperse from there (maintaining COVID-19 safety and social distancing precautions). Drop in and stay as long as you are able. Bags and supplies will be provided. More details here.
• Sustainability Rocks on the Main Quad, April 8, 11 AM – 5 PM. Come paint a rock outside the Union with a sustainability/environmental theme (maintaining COVID-19 safety and social distancing precautions). Bring your own rock, or use one of ours! After you finish creating your rock, place it somewhere around campus for others to find! More details here.
• Careers in Sustainability Panel Discussion (virtual), April 9, 12 – PM. Interested in careers in sustainability? Join us to hear a panel discussion from industry professionals and learn how the field is changing and how to pursue a career in sustainability. Registration is required; sign up here.  
• Facilities & Services hosts a Virtual Open House of UIUC Solar Sites on Earth Day, April 22, 9 a.m. to 10:30 a.m. April 22 on Topia (must use a computer, not a smart phone), Click this link to attend the Open House
• TED Talk: Eco-Edition series – Earth Month, April 29, 7 – 8 PM. In celebration of Earth Month, this month’s topic will focus on environmental activism and action with a discussion hosted by iSEE Communications Intern and Earth, Society, & Environmental Sustainability student, Maria Maring. Registration is required; sign up here.
• UIUC Arbor Day Celebration at CCNet, April 30, at Noon, on Zoom, Click this link at noon on Arbor Day to join the CCNet Zoom call

We invite you to participate in any of the above opportunities (or celebrate in your own way!) to get “Caught Green-Handed!” this Earth Month! Get featured . . . Click here to let us know how you’re celebrating the Earth. Please reach out if you have any questions. Be sure to sign up for the iSEE newsletter to stay up-to-date on more sustainability opportunities. Have a great Earth Month (and don’t forget to continue the momentum beyond April)!

Check it out: 

• Earth Month Video
• Trash Pickup Follow-Up
• TedTalk: Eco-Edition promo on 4/30

Renewable energy at the UI "How much power is each of the renewable (University of Illinois) sources generating? How many houses can each provide power for? Are there plans to add more than what we currently have? How many years does it take for the cost of each to be paid off? We have a growing interest in this and many homes now also have this."

Morgan White, the UI's associate director of Facilities & Services for sustainability, has all your answers.

As for power generation, she said that the UI's "on-campus solar arrays are now capable of producing over 25,000 megawatt-hours (MWh) per year and we purchase an additional 25,000 MWh/year from an off-campus wind farm in Illinois.

"For a more comprehensive answer:

"The (Illinois Climate Action Plan) 2020, objective 2.3.1 is: 'Use at least 140,000 MWh/year of clean power by FY25.' This objective is about clean power, which is different from clean thermal energy. As of 2020, there are three types of clean power options being pursued or used on campus.

"1. Solar Energy on Campus: installing solar photovoltaic panels on campus property

"2. Wind Energy on Campus: installing wind turbine generators on campus property

"3. Power Purchase Agreements for Clean Energy: purchasing solar or wind power from off-campus

"FYI, Solar Farm 2.0 is projected to produce 20,000,000 kWh/year. It began production at the end of January, so there will only be 5 of 12 months production in the FY21 totals (this current fiscal year)."

As for the number of houses each can provide power for, White said, "At Facilities & Services, we use the US Energy Information Administration (EIA) for the average power use in an American home. It currently says, 'In 2019, the average annual electricity consumption for a U.S. residential utility customer was 10,649 kilowatthours (kWh).”

"Thus, the FY20 clean power use on campus (30,635,993 kWh) was the equivalent of the power needed for 2,876 houses. Once Solar Farm 2.0 is operating for an entire year, that will be about 50,000,000 kWh/year of clean power use on campus, which is the equivalent to the power needed for 4,717 houses."

And about whether more generation will be added, she said: "The recently released Illinois Climate Action Plan 2020 (iCAP 2020) includes a goal for increasing clean power use to 140,000 MWh/year by FY25. We are currently having internal discussions at the University of Illinois about initiating a large off-campus solar power purchase agreement to meet this goal. We are also continuing to pursue clean thermal energy solutions, such as geothermal. Additionally, large construction projects on campus are required by the state law to be LEED certified, and this will often entail the addition of clean energy systems for individual buildings."

The payback period for each of these systems varies widely due to several factors, she said.

"For example, the geothermal system for the Campus Instructional Facility is projected to pay for itself in 28 years, while Solar Farm 2.0 is saving money in year one," said White. "For local projects off-campus these programs are very helpful: the Solar Urbana-Champaign program typically finds solar installations to pay for themselves in six or seven years, and the Geothermal Urbana-Champaign program typically finds a geothermal system at a residential home can pay for itself within 10 years."

https://www.news-gazette.com/toms-mailbag/toms-mailbag-feb-12-2021/artic...