MCFM Solar-Thermal Installations
Phoenix Region ENR Southwest
Owner Maricopa County-Facilities Management Dept., Phoenix
Lead Design Michael Baker Corp., Phoenix
General Contractor Builders Guild Inc., Mesa, Ariz.
Engineers Landa & Associates, Phoenix; Walsh Engineering, Tempe, Ariz.
Consultants Greenfield Dynamics, Tempe, Ariz.; APS, Phoenix
Integrating new, large-scale solar-thermal systems with existing gas heating systems at two fully operational detention facilities without any loss of service reflects the "highest degree of difficulty," according to the judges. In total, 316 solar heat collectors will provide most of the daily hot-water requirements for 4,000 inmates while reducing emissions and saving over $55,000 a year. Sitework to cut into the existing systems was accomplished quickly and securely without a single recordable OSHA incident, due to extensive preplanning and the use of test rigs. The closed-loop system requires little maintenance.