# name
Energy Optimization in Research Infrastructure: A Data-Driven Analysis of the CEK Building

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Treballs Finals de Grau d'Enginyeria Biomèdica. Facultat de Medicina i Ciències de la Salut. Universitat de Barcelona. Curs: 2024-2025. Tutor: Albert Compte ; Director: Cristina Navas

# metadata.dc.description.abstract[].value
This thesis presents a bottom-up energy audit of the Esther Koplowitz Centre (CEK) building at
IDIBAPS, Barcelona, to guide targeted energy-saving actions. Due to the absence of permanent
metering, this study combined a detailed equipment inventory, short-term monitoring campaigns,
and statistical modeling of hourly electricity data from 2023–2024. The calibrated model explains
97% of measured weekly demand, with a relative error of 3%, and captures seasonal variation with
a Mean Absolute Percentage Error (MAPE) of 6.8%. Disaggregation reveals a concentrated energy
profile, with HVAC systems responsible for ~52% of annual use, followed by laboratory equipment
(~36%) and the Data Processing Center (CPD; ~9%). Regression analysis further shows that
outdoor temperature and daily occupancy explain 83% of day-to-day energy variability, with
summer temperatures strongly influencing seasonal peaks. Three high-impact interventions
emerge, ranked by estimated savings: (i) submetering and recommissioning HVAC subsystems;
(ii) raising set-points of ultra-low temperature (ULT) freezers from -80 °C to -70 °C; and (iii)
increasing the CPD cooling set-point from 24 °C to 26 °C. Together, these measures would cut
consumption by ≈ 0.43 GWh per year (about 8.1 MWh per week)—11 % of today’s 3.87 GWh
annual load. Despite limited metering infrastructure, this approach demonstrates how a datainformed audit can reliably uncover savings opportunities and provide a scalable audit framework
applicable to comparable biomedical research infrastructures.

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Treballs Finals de Grau (TFG) - Enginyeria Biomèdica

# metadata.dc.title[].value
Energy Optimization in Research Infrastructure: A Data-Driven Analysis of the CEK Building