CT Department of Transportation

Solar Photovoltaic


System Size (kW DC): 23.10



Expected Annual Electricity Generation (kWh): 21,956




118 Acres of Trees on One Roof


On the roof of the CT Transit Repair Facility are 210 solar photovoltaic modules covering 3,700 square feet. The modules convert sunlight directly into electricity, generating 23.10 kilowatts of clean, renewable energy for the bus depot.  Installed in December 2003, the system was funded by both the CCEF and the Connecticut Department of Transportation.  The solar PV installation was manufactured by PowerLight and installed by Select Energy Services, Inc. 


Based on the success of the installation in meeting the energy needs of the facility, in 2004 the Connecticut Quality Improvement Award Partnership, Inc. recognized CTTRANSIT’s photovoltaic array as an innovative improvement and awarded CTTRANSIT with the Connecticut Quality Improvement Award (CQIA) Silver Innovation Prize. The CQIA recognizes the efforts of innovative programs to improve quality, performance and marketplace competitiveness.
The solar array is only one part of CTTRANSIT’s ongoing effort to help conserve energy, improve the environment and promote new technologies.  CTTRANSIT has re-circuited its lighting/controls and replaced its existing lighting with energy efficient fixtures. These energy efficiency projects, combined with the completed PV project will reduce CTTRANSIT’s peak energy demand by 12% and allow the facility to realize a 16% energy savings on its electric bills.


Several other recent projects underscore CTTRANSIT’s commitment to exploring new technologies. In 2001, the agency switched to ultra low-sulfur fuel for its Stamford operations, which reduced bus engine emissions by 90%.  In June 2003, CTTRANSIT began testing two state-of-the-art hybrid diesel electric buses that reduce energy consumption by over 15 percent. The company added a computerized controller to the Hartford facility boiler, which will further reduce heating energy requirements. And finally, CTTRANSIT is researching fuel cell bus technology powered by hydrogen the clean and renewable fuel of the future. 



Environmental Benefits


Annual Emissions Avoided (lbs.) *


 24,371  19  13  46



The energy produced by this system is equivalent to:


The needs
of 3 homes

Removing the
emissions for 2 cars

Planting 4 acres of trees



Additional Information



100 Liebert Road

Hartford, CT 06141



Philip Fry




Are tours of this facility available? No


System installed by:







Learn more about Solar Photovoltaics




* Learn about how we calculate avoided emissions here