A solar thermal project developer contracted Solar Energy Services to assist in the design and complete the turnkey installation of 11 separate roof mounted, closed loop solar domestic hot water systems (10 systems of 196 panels and 1 system of 32 panels).  The project was completed while the buildings were fully occupied.  The system is actively monitored for performance and solar energy delivered to the buildings’ domestic hot water systems.

Through the shared savings model, the customer earns a portion of the ongoing savings for ten years.  After ten years, the customer owns the asset and receives 100% of the savings from solar.  No capital investment was required from the customer.

Type of Install: Solar Water Heating
Installation Date: May 4, 2012

Annapolis, MD

System Size: 228 Solar Thermal Panels – 502 KW equivalent
Annual Output: 20,500 therms per year (602 MWh/year Equivalent)
Equipment: (192) Schuco Flat Plate Collectors, (32) Solene Aurora Flat Plate Collectors, (1) 9500 gallon unpressurized tank and (10) 950 gallon tanks
System Manufacturer Warranties: Tanks and Panels – 10 years
Installer Workmanship Warranty: 2 Years
Return on Investment: The property owner participates in shared savings for 10 years and then owns the asset to obtain full savings
Financing: Project was financed for 10 years by the project developer, no capital was required from the building owner
Incentive Processing: SES provided support to the developer for grant processing

The site is owned by the Annapolis Housing Authority and  was constructed in 1964. This community consists of 273 units and 475 residents.  SES and Developer completed site visits to assess all viable rooftops relative to the thermal load in each building.

The project was designed and developed by Nextility (formerly Skyline Innovations), with consultation from SES. After SES and Developer completed site visits to assess all viable rooftops relative to the estimated thermal load in each building, SES installed metering systems on all target buildings.  Once the thermal load and profile was better quantified, system sizing could be completed.

Once construction began, SES completed the project in approximately three months, in a staged approach.  The project was completed while all of the buildings were fully occupied.  The system is actively monitored by the system owner for performance and solar energy delivered to the buildings’ domestic hot water systems