AEE Certified Energy Manager (CEM) study plan

Map ASHRAE 90.1, ASHRAE 100, IECC, and NFPA 70E each to the specific CEM decision it governs (new envelope design, existing-building retrofit, code baseline, electrical safety).

Distinguish prescriptive from performance compliance paths and work one envelope trade-off through a performance path.

Match each measurement (power, flow, temperature, light level, flue gas) to an instrument, and state its accuracy, range, and calibration interval.

Compute load factor, demand factor, and diversity factor from a self-built 15-minute interval data set.

Draft a 3-day Level II audit measurement plan: what to log, at what interval, for how long.

Compute single-phase and three-phase kW, kVA, current, and power factor for ten load scenarios without notes.

Size feeders, overcurrent protection, and transformers for a stated load, and justify the 125% and 80% rules applied.

Calculate demand charges, energy charges, and power-factor penalties from a sample utility bill, then price a power-factor correction capacitor bank.

Break motor losses into core, stator I2R, rotor, stray, and friction/windage, and compute annual kWh savings from an efficiency upgrade.

Compare across-the-line, soft-start, and VFD starting on inrush, then calculate VFD energy savings using the affinity laws.

Apply NEC Article 430 branch-circuit conductor, short-circuit, and overload sizing to three motor nameplate examples.

Convert between dry-bulb, wet-bulb, RH, dew point, humidity ratio, and enthalpy for five air states.

Compute coil sensible and latent loads and supply-air CFM from the governing equations, then check the result against a plotted state-point pair.

Quantify the annual energy difference between constant-air-volume and VAV operation using a simplified bin method.

Explain how motor load factor and part-load efficiency interact with fan and pump system curves.

Calculate chiller kW/ton, COP, and part-load value, and rank three chiller options on annual energy and demand.

Compute combustion, thermal, and annual fuel utilization efficiency from flue-gas temperature and O2/CO2 readings.

Estimate savings from economizer operation, air-side heat recovery, and chilled-water and supply-air temperature reset.

Compare VAV, fan-powered VAV, and chilled-beam options on first cost, annual kWh, and simple payback.

Diagnose eight common HVAC operational faults and name the measurement or trend that confirms each.

Size a CHP prime mover against an 8,760-hour load duration curve and report electric and thermal utilization.

Compute overall CHP efficiency, power-to-heat ratio, and operating cost from fuel price and spark spread.

Estimate PV annual output from plane-of-array irradiance, system derate, and tilt/azimuth correction.

Compare PV, solar thermal, wind, and biomass on levelized cost of energy using a common discount rate.

Identify standby-charge, interconnection, and net-metering constraints that change a renewable project's economics.

Size a chilled-water thermal storage tank from a load profile and quantify peak-demand reduction for full and partial storage.

Calculate plant efficiency with and without storage, including the charging penalty and part-load chiller behavior.

Compute illuminance, fixture efficacy, and lighting power density, and compare LED, fluorescent, and HID options on a lumens-per-watt and life-cycle basis.

Calculate lighting retrofit savings from LPD reduction, operating hours, and demand reduction, adding the associated cooling-load savings.

Apply lighting power density allowances and automatic-control credits when checking a design against code.

Write a sequence of operation for an air-handler economizer and a duct static-pressure reset, naming the analog and binary points involved.

Detect economizer and simultaneous heating/cooling faults from a trend-data set and quantify the wasted energy.

Specify optimum start-stop, night setback, and demand-limiting strategies, with an expected savings estimate for each.

Assign IPMVP Options A, B, C, and D to four project scenarios and defend each choice.

Build a weather-normalized baseline with a change-point regression, compute adjusted savings, and state the uncertainty and persistence requirements.

Write a commissioning plan for a new chiller plant covering pre-functional checks, functional performance tests, and seasonal testing.

Distinguish commissioning, retro-commissioning, and monitoring-based commissioning, and state the typical cost and savings range for each.

Build a preventive and predictive maintenance schedule and estimate the annual energy impact of the tasks on it.

Complete a timed 100-question cumulative mock exam and remediate every missed item to its source concept.

Condense all ten domains into a single one-page formula and definition sheet.