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| Section | Weight | Objectives |
|---|---|---|
| Facilities Management | 8-12% | - Building automation systems (BAS) - Commissioning and re-commissioning - Monitoring and targeting (M&T) - Operations and maintenance best practices - Preventive maintenance programs |
| Energy Project Implementation | 8-12% | - Energy service companies (ESCOs) - Implementation strategies - Measurement and verification (M&V) - Project risk management - Project financing models - Performance contracting (ESPC) |
| Energy Accounting and Economics | 10-15% | - Energy price forecasting - Utility rate structures and tariffs - Financial analysis techniques (ROI, NPV, IRR) - Life cycle cost analysis (LCCA) - Energy cost accounting and allocation |
| Energy Auditing | 15-20% | - Audit report writing - Data collection and analysis - Audit procedures and methodologies - Types of energy audits (preliminary, detailed, investment-grade) - Baseline establishment - Metering and measurement equipment |
| Electric Power Systems | 10-15% | - Standby power systems - Motors and drives - Harmonics and power quality - Power factor correction - Lighting systems and controls - Power distribution systems |
| Environmental and Regulatory Compliance | 5-10% | - EPA regulations (Clean Air Act, Clean Water Act) - Green building standards (LEED, ENERGY STAR) - Carbon footprint calculation - Sustainability reporting - Energy reporting requirements |
| Heating, Ventilating, and Air Conditioning (HVAC) | 12-18% | - Heat transfer principles - Load calculations - Controls and optimization - Indoor air quality - Equipment efficiency ratings - HVAC system types and components - Psychrometrics |
| Building Envelope | 8-12% | - Air leakage and infiltration - Thermal envelope analysis - Insulation types and R-values - Windows and glazing systems - Daylighting and shading |
| Renewable Energy Technologies | 8-12% | - Biomass and bioenergy - Wind energy systems - Energy storage technologies - Geothermal systems - Solar photovoltaic systems - Solar thermal systems |
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NEW QUESTION # 145
A 3 MW rated wind-powered turbine has a rotor diameter of 113 meters. What is the efficiency of the wind turbine at rated power if it is operating in wind power calculated at 8.6 MW? Assume an air density of 1.225 kg/m³.
Answer: C
NEW QUESTION # 146
What type of passive heat exchanger can wrap around an evaporator coil to precool entering air and reheat the air after the cooling coil without adding more moisture to the supply air stream?
Answer: E
NEW QUESTION # 147
Calculate the monthly electric bill for a customer that used 400 kW and 75,000 kwh during one month. Use the following declining block structure for a monthly bill:
SELECT THE CORRECT ANSWER
Answer: B
Explanation:
We need to calculate the monthly electric bill based on the given pricing structure.
Step 1: Identify Charges from the Table
* Customer charge:$50/month
* Peak demand charge:$10/kW-month
* Electric consumption charges:
* First25,000 kWh@$0.06/kWh
* Excess(75,000 - 25,000) = 50,000 kWh@$0.05/kWh
* Tax:20% of total
A screenshot of a calculator AI-generated content may be incorrect.
NEW QUESTION # 148
Which of the following is NOT a renewable-energy resource?
SELECT THE CORRECT ANSWER
Answer: A
Explanation:
Renewable energy resources are naturally replenished on a human timescale. Let's evaluate each option:
A). Saw grass:
A biomass resource, renewable through regrowth.
B). Shale gas:
A fossil fuel extracted from shale formations, non-renewable.
C). Geothermal heat:
Energy from Earth's internal heat, renewable.
D). Ocean waves:
Mechanical energy from ocean surface waves, renewable.
E). Crop residue:
Organic materials from agriculture, renewable.
Conclusion:
Shale gas is not a renewable energy resource. Therefore, the correct answer is B.
NEW QUESTION # 149
An energy-saving project costs $540,000. The project will have maintenance costs of $25,000 per year. The energy savings from the project are $160,000 per year. What is the simple payback of the project?
Answer: D
Explanation:
To determine the simple payback period for the energy-saving project, we need to apply the standard formula used in energy management as per the Association of Energy Engineers (AEE) Certified Energy Manager (CEM) guidelines. The simple payback period is a widely used metric in energy efficiency projects to evaluate how long it takes for the initial investment to be recovered through net savings. Let's break this down step-by-step using the provided data and CEM-aligned methodology.
Step 1: Understand the Simple Payback Formula
* Formula: Simple Payback Period (years)=Initial Investment CostNet Annual Savings\text{Simple Payback Period (years)} = \frac{\text{Initial Investment Cost}}{\text{Net Annual Savings}} Simple Payback Period (years)=Net Annual SavingsInitial Investment Cost
* Definition: The simple payback period represents the time (in years) required for the cumulative savings to equal the initial investment, without considering the time value of money (e.g., discount rates or inflation).
* CEM Reference: AEE CEM training materials emphasize this formula in the "Energy Economics" section, where simple payback is a fundamental tool for assessing project feasibility.
Step 2: Identify Given Data
* Initial Investment Cost: $540,000 (one-time cost of the project).
* Annual Energy Savings: $160,000 per year (benefit from the project).
* Annual Maintenance Costs: $25,000 per year (additional cost incurred due to the project).
* Net Annual Savings: This must account for both the savings and the costs incurred annually.
Step 3: Calculate Net Annual Savings
* Definition: Net annual savings is the difference between the annual energy savings and any additional annual costs (e.g., maintenance).
* Verification: The problem specifies maintenance costs as an ongoing expense tied to the project, which reduces the effective savings. CEM guidelines require including such costs in payback calculations unless explicitly stated otherwise.
Step 4: Compute the Simple Payback Period
* Apply the Formula: Simple Payback Period=Initial Investment CostNet Annual Savings\text{Simple Payback Period} = \frac{\text{Initial Investment Cost}}{\text{Net Annual Savings}} Simple Payback Period=Net Annual SavingsInitial Investment Cost Simple Payback Period=540,
000135,000=4.0 years\text{Simple Payback Period} = \frac{540,000}{135,000} = 4.0 \, \text{years} Simple Payback Period=135,000540,000=4.0years
* Result: The payback period is exactly 4.0 years, meaning it takes 4 years for the net savings to recover the initial investment.
Step 5: Validate Against Options
* Options:A. 2.0 yearsB. 3.0 yearsC. 4.0 yearsD. 5.0 years
* Check:
* If we ignored maintenance costs (incorrectly), payback would be 540,000160,000=3.375 \frac
{540,000}{160,000} = 3.375 160,000540,000=3.375 years, which rounds to 3.4-not an exact match for any option.
* With maintenance costs included, 540,000135,000=4.0 \frac{540,000}{135,000} = 4.0
135,000540,000=4.0, which matches option C precisely.
* Conclusion: Option C (4.0 years) is correct based on the net savings approach.
NEW QUESTION # 150
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