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Johns Hopkins University

Early in 2012, Johns Hopkins University brought over 900 kW of photovoltaic electricity generation online with roof-mounted solar arrays spread over seven campus buildings across Baltimore. The project was coordinated by the Hopkins Office of Sustainability, which has worked to reduce the campus’ resource consumption since 2007. University President Ronald J. Daniels explained the world-renowned research university’s sustainability initiative, saying, “universities have a special role in our society and a special responsibility. We are institutions that discover, that educate and that, often, set an example. When it comes to global climate change, Johns Hopkins will be a leader in all three.”
In all, 903 kW were installed across the seven sites – enough electricity to power 108 average homes.

  • 2024 Building – 147.8 kW
  • Athletic + Recreation Center – 388 kW
  • Bloomberg Building – 30.8 kW
  • Eastern Building – 221.8 kW
  • Hampton House – 15.1 kW
  • Mattin Center – 84.5 kW
  • Pinkard Building – 14.56 kW
Size903 kW
Production1,108,684 kWh/year
PV modulesYingli 280P-35b (2,922 modules)
SunPower 320E (264 modules)
LocationBaltimore, MD
Online since2012
System Offsets*AnnualLifetime
Pounds of CO21,724,52643,113,150
Miles driven1,873,35946,833,975
Trees planted20,057501,425


*Calculations based on EPA Greenhouse Gas Equivalency Calculator. System lifetime is assumed to be 25 years.