The Earth & Environmental Science Department's Senior Thesis Posters Spring 2023

Quantifying Energy Savings from Potential Green and Biosolar Roof Retrofits for Pennovation Data Center

The purpose of this research is to assess the feasibility and potential energy and operational savings for the University of Pennsylvania’s Pennovation Center data center as a result of installing a green or biosolar roof on top of its already white roof. Because data centers must adhere to strict guidance about server performance, they have high energy usage and cooling loads, which produce heat locally and greenhouse gas emissions at the power source. Green roofs are widely documented to have insulative properties, as they redirect unwanted heat from being absorbed by a building upon which it grows. There is no significant literature assessing the insulation benefits of green roofs for use on data centers, specifically. Google Earth Pro imagery along with a building site visit showed that about 37% of the roof could be feasibly retrofitted. Utilizing the ASU Global Climate Research Center’s Green Roof Energy Calculator and Net Present Value formula, this research finds that the total annual energy savings for the Pennovation data center with a green roof is a negligible 0.23% of the building’s approximate current emissions. Likewise, the project has a negative net present value of about -$492,000. Similarly, the number of solar panels that would be necessary to power the data center’s cooling, ignoring the server electricity usage, would require utility scale solar and could not feasibly be powered with solar panels on the roof alone. Therefore, as Penn considers methods for achieving carbon neutrality by 2042, it is not advisable, at this time, that the University pursue either of these projects because the emissions reductions are negligible for the green roof, and the biosolar roof is not technically feasible. If the green roof project almost doubled in size, the City would forgive about 20% of the cost to build in tax relief, so the amount of space Pennovation Center could dedicate to greening should be reconsidered as the University considers this option. 

 

PRESENTED BY
University Scholars
College of Arts & Sciences 2023
Advised By
PRESENTED BY
University Scholars
College of Arts & Sciences 2023
Advised By

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