Euclid City School District
House Bill 264 Energy Conservation Program
Euclid City Schools utilized a House Bill 264 Energy Conservation project in 2007 to reduce the energy use in several of their buildings. This project was designed to replace aging mechanical systems, lighting systems and update water consuming devices.
Central Middle School received the largest mechanical upgrade. Both the boiler plant and chiller were installed in the mid 1960’s. The equipment was well beyond its useful life according to research completed by ASHRAE Technical Committee TC 1.8. The chiller was replaced with a 300 ton Helical Rotary Chiller. This system increased reliability and serviceability while significantly reducing energy consumption. The two 2560 MBH hot water boilers were replaced with energy efficient boilers and improvements were made to the mechanical rooms to bring the combustion air up to current requirements.
At Memorial Elementary School the two 2720 MBH low pressure steam boilers were installed in the mid 1950’s and had exceeded the expected useful life of 30-35 years. They were significantly oversized and running at a fraction of their capacity which is the most inefficient method of boiler operation. This was evident in the high gas cost per square foot. The Brewer-Garrett Company removed the two existing steam boilers and installed two new 1250 MBH energy efficient boilers. Right sizing the boiler plant to more accurately match the load of the school allows the new boilers to run in a manner which maximizes the efficiency of the plant. The new boiler system includes a duplex condensate pumping system that adds redundancy and enhances the overall operation of the system.
At Central Middle School and the High School water conservation was a main focus. The commode and urinal assemblies were all standard water consuming designs typical for the vintage of these buildings. Sinks did not have flow restrictors; commodes and urinals used 3.5 and 1.5 gallons per flush respectively. Existing standard flow valves and fixtures were replaced with low flow china and valves. In the case of sinks, aerators were installed.
Brewer-Garrett performed lighting retrofits, replacing outdated and inefficient T-12 electromagnetic technology with T-8 electronic ballasts and lamps. The lighting generated substantial savings to offset program costs. We also recommended a straightforward one-for-one replacement of the existing 400-watt metal halides with a 4 lamp T5HO high bay fixture. These new fixtures utilize fluorescent technology that maintain light levels and enhance uniformity.
Contact details for this case study can be provided upon request.