Wasatch Elementary School
Davis School District

The new Wasatch Elementary in the Davis School District is replacing an existing 65 year old school and the phrase “Out with the old, in with the new” takes on a special meaning in this case. In classrooms and corridors energy saving LED light fixtures are being used. LED's have been around a long time but have only recently achieved a lumen per watt level of efficiency to make their use in classroom situations a viable alternative to fluorescent.

Standard classrooms utilize (9) 2x4 lay-in LED fixtures to achieve an impressive 0.382 watts per square foot which exceeds ASHREA 90.1 requirements by 70%. The average foot candles over the desk area is 44 and on the whiteboard it is 25.

The electronics embedded in each fixture, monitors the LED's performance and provides continuous lumen management function to maintain constant lumen output for 50,000 hours. The LED driver in the fixtures provides full 0-10v dimming capability. Estimates indicate the return on investment to be less than 6 years. Also these fixtures qualify for the Rocky Mountain Power incentive program which provides rebates to offset the initial costs.

River's Edge School
Jordan School District

River's Edge School serves students with severe behavioral, social and emotional needs. The main goal is to assist students in learning new skills enabling them to become successful in their education and personal lives.

The school incorporates several energy efficient measures and renewable energy technologies. The building utilizes a thermal wall rigid insulation and spray foam insulation system that creates a R-27 system that exceeds the Energy Code by 50%. The mechanical system utilizes a ground source heat pump system to provide heating and cooling for the building. The building was provided with (3) Skystream, 2.4 kW Wind Turbines and (230) 225 watt photovoltaic (PV) cells, providing 51 kilowatts of electrical energy at full output.

As part of the PV system, the design incorporated micro inverters by Enphase Energy©, that allow the school to view through Enphase Energy's Enlighten® monitoring software. Performance of the system including; current , daily, monthly and lifetime total energy production can all be easily be viewed “at a glance” on an LED display in the Science Classroom or via a website link allowing teachers to incorporate this information into their curriculum or lesson plan.

The renewable energy components are estimated to provide 50 to 55 percent of the electrical energy requirements of the building.

The combination of the energy measures and the renewable energy components will make this one of the most energy efficient schools in the state of Utah.