SunCache Used in Sacramento Rehab Project
The Sacramento Housing and Redevelopment Agency placed 65 of the SunCache units on 37 buildings it was renovating on two sites. The passive pre-heating units draw city water into a collector and move it through a copper heat exchanger; heat is extracted from water sitting in a 50-gallon (190 l) tank that is part of the collector. The water then enters an existing water heater.
According to the company, the SunCache system may achieve annual savings of $1,000 compared to electric water heaters. Developed in part with a grant from the U.S. Department of Energy, the system costs roughly $2,000, with installation running about $3,500. It comes with a ten-year warranty, and is appropriate for warmer climates. More information is available at.
Bragonier, E. (2010, January 1). SunCache Used in Sacramento Rehab Project. Retrieved from https://www.buildinggreen.com/newsbrief/suncache-used-sacramento-rehab-project