CEA case studies
CEA · Put your knowledge to work in context.
The Certified Energy Auditor (CEA) is a professional credential offered by the Association of Energy Engineers (AEE) for people who evaluate and analyze energy use in a facility, identify energy conservation opportunities, and recommend where consumption can be reduced or optimized. AEE positions it as the leading global certification for energy auditing. The CEA case studies are 5 cases and about 3,004 words.
1Scoping a Level 2 Audit at a Three-Shift Bakery
A 180,000 ft² bakery runs three shifts, seven days a week, with two natural-gas tunnel ovens, a 400 hp steam boiler, ammonia refrigeration, and 1,200 cfm of compressed air. Annual utility spend is $2.4 million: 22 GWh electricity and 850,000 therms gas.
643 words, about 3 min2Low Delta-T Diagnosis in a Primary-Secondary Chilled-Water Plant
A 300,000 ft², 12-story office building has two 500-ton centrifugal chillers and a primary-secondary chilled-water plant. The secondary pumps are constant-speed, and the design supply-return ΔT is 12°F.
590 words, about 3 min3Compressed-Air Baseline and Sequencing at a Metal Fabricator
A metal fabricator runs three compressed-air compressors: two 150 hp fixed-speed load/unload units and one 100 hp variable-speed unit. The system pressure is 110 psig, and the plant operates 8,000 hours per year, five days a week.
597 words, about 3 min4Envelope Priorities for a 1968 Elementary School
A 90,000 ft² elementary school built in 1968 has single-pane aluminum windows, a roof insulated to about R-8, and wall cavities at about R-7. The building uses 120 kBtu/ft²-year, well above similar schools.
577 words, about 3 min5Sizing PV and Battery Under a No-Export Rule at a Warehouse
A 250,000 ft² distribution warehouse has a 1.2 MW peak demand, 4,000 MWh annual consumption, and a load profile that peaks between 15:00 and 18:00 on weekdays. The utility demand charge is 16/kW with an 80% ratchet for 12 months, and energy costs 0.08/kWh.
597 words, about 3 min