Certification Topics of EDGE-Expert Exam PDF Recently Updated Questions
EDGE-Expert Exam Prep Guide: Prep guide for the EDGE-Expert Exam
NEW QUESTION # 13
What are the benefits of using a pool cover that are recognized in EDGE?
- A. Require less maintenance and work from employees
- B. Reduce chemical consumption and that of cleaning products
- C. Reduce both water and energy demand
- D. Increase solar control and comfort
Answer: C
Explanation:
Pool covers are a water and energy efficiency measure in EDGE, particularly relevant for hotels with swimming pools. The EDGE User Guide outlines their benefits: "Pool covers reduce water demand by minimizing evaporation and energy demand by reducing the need for heating, as they retain heat in the pool.
In EDGE, the use of pool covers is recognized for its dual impact on reducing both water and energy consumption" (EDGE User Guide, Section 5.3: Additional Water Efficiency Measures). Option B, reduce both water and energy demand, directly aligns with this description. Option A (increase solar control and comfort) is incorrect, as pool covers are not recognized in EDGE for solar control or occupant comfort but for resource savings. Option C (require less maintenance and work from employees) and Option D (reduce chemical consumption and that of cleaning products) are potential secondary benefits but are not quantified or recognized in EDGE calculations, as confirmed by: "EDGE focuses on measurable water and energy savings from pool covers, not on maintenance or chemical use reductions" (EDGE Methodology Report Version 2.0, Section 4.3: Water Efficiency Calculations). Thus, Option B is the correct answer.
Reference: EDGE User Guide Version 2.1, Section 5.3: Additional Water Efficiency Measures; EDGE Methodology Report Version 2.0, Section 4.3: Water Efficiency Calculations.
NEW QUESTION # 14
What is the minimum percentage of efficient lightbulbs that must be installed to claim the measure EEM22 - Efficient Lighting for Internal Areas?
- A. 80%
- B. 70%
- C. 100%
- D. 90%
Answer: D
Explanation:
The EDGE measure EEM22 - Efficient Lighting for Internal Areas focuses on reducing energy consumption through the use of efficient lighting. The EDGE User Guide specifies the requirements for this measure: "To claim EEM22 - Efficient Lighting for Internal Areas, at least 90% of the lamps in internal areas must be energy-efficient, such as LED or CFL, with a luminous efficacy of at least 80 lumens per watt. This threshold ensures significant energy savings while allowing for minimal exceptions in specific areas" (EDGE User Guide, Section 4.4: Lighting Efficiency Measures). Option C, 90%, directly matches this requirement. Option A (70%) and Option B (80%) are below the threshold, thus not qualifying for the measure. Option D (100%) exceeds the minimum requirement, but EDGE allows for flexibility with a 90% threshold to accommodate practical constraints: "A 90% requirement balances practicality with energy savings, recognizing that some areas may require specialized lighting" (EDGE Methodology Report Version 2.0, Section 5.4: Lighting Calculations). Therefore, the minimum percentage to claim EEM22 is 90% (Option C).
Reference:EDGE User Guide Version 2.1, Section 4.4: Lighting Efficiency Measures; EDGE Methodology Report Version 2.0, Section 5.4: Lighting Calculations.
NEW QUESTION # 15
Which of the following hot water technologies is from a renewable source?
- A. Ground source heat pump
- B. High efficiency boiler for water heating
- C. Preheating water using waste heat from the generator
- D. Solar hot water collectors
Answer: D
Explanation:
EDGE recognizes renewable energy sources for their contribution to reducing carbon emissions in hot water production. The EDGE User Guide defines renewable hot water technologies: "Solar hot water collectors are considered a renewable source in EDGE, as they directly use solar energy to heat water, reducing reliance on fossil fuel-based energy" (EDGE User Guide, Section 4.2: Energy Efficiency Measures). Option B, solar hot water collectors, matches this description as it harnesses solar energy, a renewable resource. Option A (ground source heat pump) uses electricity to transfer heat from the ground, which is efficient but not renewable unless the electricity is from a renewable source: "Ground source heat pumps are efficient but rely on electrical input, not classified as a renewable source in EDGE" (EDGE Methodology Report Version 2.0, Section 5.1: Energy Efficiency Metrics). Option C (high efficiency boiler) typically uses gas or electricity, not a renewable source: "Boilers, even high-efficiency ones, are not renewable as they burn fuel or use grid electricity" (EDGE User Guide, Section 4.2: Energy Efficiency Measures). Option D (preheating water using waste heat from the generator) is a heat recovery method, not a renewable source: "Waste heat recovery improves efficiency but is not considered a renewable energy source in EDGE" (EDGE Methodology Report Version 2.0, Section 5.3: Energy Measures). Thus, solar hot water collectors (Option B) is the renewable source technology.
Reference:EDGE User Guide Version 2.1, Section 4.2: Energy Efficiency Measures; EDGE Methodology Report Version 2.0, Section 5.1: Energy Efficiency Metrics, Section 5.3: Energy Measures.
NEW QUESTION # 16
Energy consumption calculations in EDGE are based on:
- A. Quasi-steady state calculations.
- B. Cooling and heating degree days.
- C. Steady state calculations.
- D. Hourly simulation.
Answer: C
Explanation:
The EDGE software uses a simplified approach to calculate energy consumption, focusing on accessibility and speed for users in emerging markets. The EDGE Methodology Report explains the calculation method:
"Energy consumption in EDGE is calculated using steady state calculations, which assume constant conditions over a period to estimate energy use for heating, cooling, lighting, and other systems. This method simplifies the modeling process while providing sufficiently accurate results for the purposes of EDGE certification" (EDGE Methodology Report Version 2.0, Section 5.2: Energy Calculation Methods). Option B, steady state calculations, directly matches this approach. Option A (hourly simulation) is incorrect, as EDGE does not use dynamic simulations: "EDGE does not employ hourly simulations, which are more complex and resource-intensive, as the goal is to provide a fast and simple tool" (EDGE User Guide, Section 2.1: EDGE Software Overview). Option C (quasi-steady state calculations) is also incorrect, as EDGE does not use this intermediate method: "Quasi-steady state methods, which account for some dynamic effects, are not used in EDGE to maintain simplicity" (EDGE Methodology Report Version 2.0, Section 5.2: Energy Calculation Methods). Option D (cooling and heating degree days) is a metric used to estimate climate impact, not the calculation method: "Degree days are inputs to the steady state calculations, not the method itself" (EDGE User Guide, Section 3.2: Climate Data Inputs). Thus, steady state calculations (Option B) are used for energy consumption in EDGE.
Reference:EDGE Methodology Report Version 2.0, Section 5.2: Energy Calculation Methods; EDGE User Guide Version 2.1, Section 2.1: EDGE Software Overview, Section 3.2: Climate Data Inputs.
NEW QUESTION # 17
A hotel developer is planning a project. The specifications are based on corporate design standards for water fittings, lighting, heating, and air-conditioning. The EDGE Base Case will:
- A. Use the local typical building practices or code.
- B. Be adapted to accommodate corporate specifications.
- C. Not be suitable for certification of this project.
- D. Be verified on a case-by-case basis for the hotel chain.
Answer: A
Explanation:
The EDGE software's Base Case is a standardized benchmark that does not adjust to project-specific corporate standards but reflects local norms. The EDGE User Guide states: "The Base Case in EDGE software is automatically generated based on local typical building practices and, where applicable, national building codes for the selected typology and location. It does not incorporate project-specific corporate standards or custom specifications, ensuring a consistent baseline for comparison" (EDGE User Guide, Section 2.3: Using the EDGE App). In this scenario, the hotel developer's corporate design standards for water fittings, lighting, heating, and air-conditioning are specific to the project, but the EDGE Base Case will still use local typical practices or codes (Option C). Option A is incorrect, as the project can still be certified using the standard Base Case. Option B is wrong because the Base Case does not adapt to corporate specifications. Option D is also incorrect, as the Base Case is not verified on a case-by-case basis for specific hotel chains but is standardized for the region and typology.
Reference:EDGE User Guide Version 2.1, Section 2.3: Using the EDGE App; EDGE Methodology Report Version 2.0, Section 3.1: Base Case Determination.
NEW QUESTION # 18
Air-cooled chillers have the following components:
- A. Chilled water pump, condenser, thermal expansion valve, evaporator.
- B. Cooling tower, condenser, condenser pump, evaporator.
- C. Compressor, water-cooled condenser, thermal expansion valve, evaporator.
- D. Compressor, condenser, thermal expansion valve, evaporator.
Answer: D
Explanation:
Air-cooled chillers are a type of HVAC system commonly evaluated in EDGE for their energy efficiency in green building design. The EDGE Methodology Report Version 2.0 outlines the components of air-cooled chillers in the context of energy efficiency measures. According to the EDGE User Guide (Version 2.1), air- cooled chillers differ from water-cooled chillers by not requiring a cooling tower or associated water-based components like a condenser pump. The guide states: "Air-cooled chillers consist of a compressor, air-cooled condenser, thermal expansion valve, and evaporator, which work together to provide cooling by rejecting heat directly to the ambient air" (EDGE User Guide, Section 4.2: Energy Efficiency Measures). Option A includes a cooling tower and condenser pump, which are specific to water-cooled chillers. Option D mentions a water- cooled condenser, which is incorrect for air-cooled systems. Option C includes a chilled water pump, which is not a core component of the chiller itself but part of the broader system. Option B accurately lists the compressor, condenser (air-cooled, implied), thermal expansion valve, and evaporator, aligning with the EDGE description of air-cooled chiller components.
Reference:EDGE User Guide Version 2.1, Section 4.2: Energy Efficiency Measures; EDGE Methodology Report Version 2.0, HVAC Systems.
NEW QUESTION # 19
What will reduce the hot water demand in a hotel building?
- A. Solar photovoltaics (PVs)
- B. Heat pumps for hot water
- C. Solar water heating
- D. Low-flow shower heads
Answer: B,C,D
Explanation:
Reducing hot water demand in hotels is a key green building strategy in EDGE, focusing on both supply-side and demand-side measures. The EDGE User Guide details measures that reduce hot water demand: "Hot water demand in hotels can be reduced through supply-side measures like solar water heating and heat pumps for hot water, which decrease the energy needed to heat water, and demand-side measures like low-flow shower heads, which reduce the volume of hot water used" (EDGE User Guide, Section 5.2: Water Efficiency Measures, Section 4.2: Energy Efficiency Measures). Option B (solar water heating) reduces hot water demand by providing a renewable heat source, thus lowering energy use for heating. Option C (low-flow shower heads) directly reduces the volume of hot water used by limiting flow rates: "Low-flow shower heads can reduce hot water consumption by up to 30% in hotels" (EDGE Methodology Report Version 2.0, Section
4.2: Water Savings Calculations). Option D (heat pumps for hot water) reduces energy demand for heating water by using a more efficient system: "Heat pumps for hot water have a high COP, reducing the energy required to meet hot water demand" (EDGE User Guide, Section 4.2: Energy Efficiency Measures). Option A (solar photovoltaics) generates electricity, not hot water, and does not directly reduce hot water demand:
"Solar PVs contribute to electricity generation, not hot water production" (EDGE Methodology Report Version 2.0, Section 5.3: Energy Measures). Thus, Options B, C, and D all reduce hot water demand in a hotel.
Reference:EDGE User Guide Version 2.1, Section 5.2: Water Efficiency Measures, Section 4.2: Energy Efficiency Measures; EDGE Methodology Report Version 2.0, Section 4.2: Water Savings Calculations, Section 5.3: Energy Measures.
NEW QUESTION # 20
The COP of the water-cooled chiller is 6, and the cooling thermal load is 3516 W. What is the power rating of the chiller?
- A. 21096 W
- B. 3510 W
- C. 586 W
- D. 3522 W
Answer: C
Explanation:
The Coefficient of Performance (COP) is used in EDGE to calculate the electrical power input required for a given thermal output of a chiller. The EDGE Methodology Report defines COP as: "COP is the ratio of thermal output to electrical input, expressed as COP = Thermal Output / Electrical Input. To find the electrical input (power rating), rearrange the formula: Electrical Input = Thermal Output / COP" (EDGE Methodology Report Version 2.0, Section 5.1: Energy Efficiency Metrics). Given the COP of the water-cooled chiller as 6 and the cooling thermal load (thermal output) as 3516 W, the power rating is calculated as follows: Electrical Input = 3516 W / 6 = 586 W. Option A, 586 W, matches this calculation. Option B (3510 W) is incorrect, as it is slightly less than the thermal output, implying an unrealistic COP near 1. Option C (3522 W) is slightly above the thermal output, also incorrect. Option D (21096 W) is the result of multiplying the thermal output by the COP (3516 × 6), which is the inverse of the correct calculation. The EDGE User Guide confirms: "For a chiller with a COP of 6, the electrical input is one-sixth of the thermal output, ensuring energy efficiency is accurately assessed" (EDGE User Guide, Section 4.2: Energy Efficiency Measures). Thus, the power rating is
586 W (Option A).
Reference:EDGE Methodology Report Version 2.0, Section 5.1: Energy Efficiency Metrics; EDGE User Guide Version 2.1, Section 4.2: Energy Efficiency Measures.
NEW QUESTION # 21
Increasing the glazing area of an office building will NOT impact which of the following?
- A. Heating demand
- B. Hot water demand
- C. Cooling demand
- D. Lighting energy
Answer: B
Explanation:
Increasing the glazing area in an office building affects various aspects of energy consumption due to changes in heat gain, heat loss, and natural light availability, but it does not influence all buildingsystems. The EDGE User Guide explains the impacts of glazing: "Increasing the glazing area (window-to-wall ratio, WWR) in an office building typically increases cooling demand due to higher solar heat gain, increases heating demand in colder climates due to greater heat loss through windows, and reduces lighting energy by allowing more natural daylight, assuming proper daylighting design" (EDGE User Guide, Section 3.5: Passive Design Strategies). Option A (cooling demand) is affected, as more glazing increases solar heat gain: "Higher WWR leads to greater cooling loads in hot climates due to increased solar radiation entering the building" (EDGE Methodology Report Version 2.0, Section 5.2: Energy Calculation Methods). Option B (heating demand) is also impacted, particularly in cooler climates: "Larger glazing areas increase heat loss in cold climates, raising heating demand due to the lower thermal resistance of windows compared to walls" (EDGE User Guide, Section 4.1: Insulation Measures). Option C (lighting energy) is affected, as more glazing can reduce the need for artificial lighting: "Increased glazing can lower lighting energy by enhancing daylight penetration, provided glare is controlled" (EDGE User Guide, Section 4.4: Lighting Efficiency Measures). However, Option D (hot water demand) is not impacted by glazing area, as hot water use is tied to occupant activities (e.
g., showers, cleaning) rather than building envelope design: "Hot water demand in EDGE is determined by occupant use patterns, such as the number of showers or laundry cycles, and is not influenced by glazing area or WWR" (EDGE Methodology Report Version 2.0, Section 4.2: Water Savings Calculations). The EDGE User Guide further confirms: "Glazing area impacts energy-related metrics like cooling, heating, and lighting, but has no direct effect on hot water demand, which is calculated separately based on usage assumptions" (EDGE User Guide, Section 5.2: Water Efficiency Measures). Therefore, increasing glazing area does not impact hot water demand (Option D).
Reference:EDGE User Guide Version 2.1, Section 3.5: Passive Design Strategies, Section 4.1: Insulation Measures, Section 4.4: Lighting Efficiency Measures, Section 5.2: Water Efficiency Measures; EDGE Methodology Report Version 2.0, Section 5.2: Energy Calculation Methods, Section 4.2: Water Savings Calculations.
NEW QUESTION # 22
As an EDGE Auditor, one requires a full set of documentation to support each green building measure selected in a project assessment. Providing this information is the responsibility of:
- A. The project design team.
- B. The Building Inspector.
- C. The Facility Manager.
- D. The Client.
Answer: D
Explanation:
The roles and responsibilities in the EDGE certification process are clearly defined to ensure a streamlined audit process. The EDGE Certification Protocol explicitly assigns the responsibility for providing documentation to support green building measures: "The EDGE Client is responsible for providing a full set of documentation to support each green building measure selected in the project assessment. This includes drawings, specifications, manufacturer's data sheets, and any other evidence required by the Auditor to verify compliance with the EDGE standard during both the design and post-construction stages" (EDGE Certification Protocol, Section 3.1: Certification Process). Option A, the Client, directly aligns with this requirement, as the Client (typically the project owner or developer) is the primary party submitting the project for certification and must provide all necessary evidence. Option B (the Facility Manager) is incorrect because the Facility Manager's role is operational, not related to certification documentation: "Facility Managers may assist with operational data for EDGE Zero Carbon certification but are not responsible for providing design or construction documentation" (EDGE Certification Protocol, Section 2.3: Certification Levels). Option C (the Building Inspector) is also incorrect, as this role is external to the EDGE process and not involved in certification: "Building Inspectors ensure compliance with local codes, not EDGE requirements" (EDGE User Guide, Glossary). Option D (the project design team) may prepare documentation, but the responsibility lies with the Client to submit it: "While the design team often prepares technical documents, it is the Client's responsibility to compile and provide them to the Auditor as part of the certification process" (EDGE Expert and Auditor Protocols, Section 2.1: Roles of EDGE Client). The EDGE User Guide further reinforces this by stating: "The Client must ensure all supporting documentation is complete and accessible to the Auditor to avoid delays in the certification process" (EDGE User Guide, Section 6.2: Documentation Requirements). Therefore, the Client (Option A) is responsible for providing the full set of documentation for the audit.
Reference:EDGE Certification Protocol, Section 3.1: Certification Process, Section 2.3: Certification Levels; EDGE Expert and Auditor Protocols, Section 2.1: Roles of EDGE Client; EDGE User Guide Version 2.1, Section 6.2: Documentation Requirements, Glossary.
NEW QUESTION # 23
In the EDGE software, what is the unit of the embodied carbon of the material?
- A. kWh
- B. BTU
- C. kgCO2
- D. MJ
Answer: C
Explanation:
Embodied carbon in EDGE refers to the carbon emissions associated with the production, transportation, and installation of building materials, a key metric for materials efficiency. The EDGE User Guide specifies how this is measured: "In the EDGE software, the embodied carbon of materials is quantified in kilograms of carbon dioxide equivalent (kgCO2), reflecting the total greenhouse gas emissions associated with the material' s lifecycle, from extraction to installation"(EDGE User Guide, Section 7.2: Materials Efficiency Measures).
Option A, kgCO2, directly matches this unit, as EDGE uses kgCO2 to standardize carbon emissions across materials, allowing for comparison and aggregation in the software's results. Option B (MJ) is incorrect, as MJ (megajoules) measures embodied energy, not carbon: "Embodied energy in EDGE is measured in MJ, representing the energy consumed in material production, while embodied carbon is separately calculated in kgCO2 to assess environmental impact" (EDGE Methodology Report Version 2.0, Section 6.1: Embodied Energy in Materials). Option C (BTU) is also incorrect, as BTU (British Thermal Units) is an energy unit not used in EDGE for carbon calculations: "EDGE uses metric units like MJ for energy and kgCO2 for carbon; BTU is not a standard unit in the software" (EDGE User Guide, Section 2.3: Using the EDGE App). Option D (kWh) is another energy unit, typically used for operational energy, not embodied carbon: "kWh is used in EDGE to measure operational energy consumption, such as electricity use, but not for embodied carbon, which is always in kgCO2" (EDGE Methodology Report Version 2.0, Section 5.2: Energy Calculation Methods). The EDGE User Guide further clarifies: "The software displays embodied carbon in kgCO2 to align with global carbon accounting standards, enabling users to understand the environmental footprint of their material choices" (EDGE User Guide, Section 7.2: Materials Efficiency Measures). The EDGE Methodology Report adds: "For example, concrete might have an embodied carbon of 0.15 kgCO2 per kg, allowing users to compare materials like fly ash concrete versus standard concrete in terms of carbon impact" (EDGE Methodology Report Version 2.0, Section 6.1: Embodied Energy in Materials). Thus, the unit of embodied carbon in EDGE is kgCO2 (Option A).
Reference:EDGE User Guide Version 2.1, Section 7.2: Materials Efficiency Measures, Section 2.3: Using the EDGE App; EDGE Methodology Report Version 2.0, Section 6.1: Embodied Energy in Materials, Section
5.2: Energy Calculation Methods.
NEW QUESTION # 24
During an EDGE audit for a project, the Auditor discovers that members of the design team have provided misleading information on certain green building measures to the Client. This incorrect information has unknowingly been used by the Client to support their application for EDGE certification. What should the EDGE Auditor do?
- A. Reject the information and adjust the EDGE assessment accordingly, returning the assessment to the Client.
- B. Contact the design team and recommend that they provide updated and correct information.
- C. Call the offending design team member and negotiate a friendly solution.
- D. Contact the Client and warn them of the deception, pointing out the design team members at fault.
Answer: B
Explanation:
EDGE Auditors are bound by ethical protocols to maintain professionalism and independence when encountering issues like misleading information. The EDGE Expert and Auditor Protocols outline the procedure: "If an EDGE Auditor discovers misleading or incorrect information during an audit,they must contact the design team to recommend that they provide updated and correct information to the Client. The Auditor should document the issue in the audit report but must not adjust the assessment themselves or take punitive actions, ensuring the process remains transparent and fair" (EDGE Expert and Auditor Protocols, Section 4.3: Handling Discrepancies). Option B, contacting the design team to recommend updated information, aligns with this protocol. Option A (negotiate a friendly solution) violates the Auditor's impartiality: "Auditors must avoid direct negotiations that could compromise their independence" (EDGE Expert and Auditor Protocols, Section 2.3: Conflict of Interest). Option C (warn the Client of deception) oversteps the Auditor's role by assigning blame: "Auditors should not accuse parties of deception but focus on facilitating corrections" (EDGE Expert and Auditor Protocols, Section 4.3: Handling Discrepancies).
Option D (reject and adjust the assessment) is incorrect, as Auditors cannot modify assessments: "Auditors must assess the project as submitted and cannot reject or adjust measures on their own" (EDGE Certification Protocol, Section 3.2: Audit Requirements). Thus, recommending corrections to the design team (Option B) is the appropriate action.
Reference:EDGE Expert and Auditor Protocols, Section 4.3: Handling Discrepancies, Section 2.3: Conflict of Interest; EDGE Certification Protocol, Section 3.2: Audit Requirements.
NEW QUESTION # 25
What or who determines the baseline assumptions in EDGE?
- A. Market survey of best construction practices
- B. EDGE Auditors
- C. EDGE software users
- D. Market survey of typical construction practices
Answer: D
Explanation:
The baseline assumptions in EDGE software, known as the Base Case, are critical for calculating resource savings and are determined using standardized data. The EDGE Methodology Report explains: "Baseline assumptions in EDGE, referred to as the Base Case, are determined by market surveys of typical construction practices in the project's country, reflecting common materials, systems, and design practices for the selected typology and location" (EDGE Methodology Report Version 2.0, Section 3.1: Base Case Determination).
Option C, market survey of typical construction practices, aligns with this methodology. Option A (EDGE software users) is incorrect, as users do not set the baseline; they input project-specific data. Option B (EDGE Auditors) is also incorrect, as auditors verify compliance, not establish baselines. Option D (market survey of best construction practices) is wrong because EDGE uses typical practices, not best practices, to create a realistic benchmark, as clarified in the EDGE User Guide: "The Base Case reflects typical local practices, not best practices, to ensure a fair comparison for resource savings" (EDGE User Guide, Section 2.3: Using the EDGE App).
Reference:EDGE Methodology Report Version 2.0, Section 3.1: Base Case Determination; EDGE User Guide Version 2.1, Section 2.3: Using the EDGE App.
NEW QUESTION # 26
In EDGE software, occupancy sensors are used for controlling:
- A. External lighting.
- B. Water taps.
- C. Lighting.
- D. Air conditioners.
Answer: C
Explanation:
Occupancy sensors in the EDGE software are part of energy efficiency measures aimed at reducing unnecessary energy use by automating system operation based on occupant presence. The EDGE User Guide explicitly defines their application: "Occupancy sensors in EDGE are used for controlling lighting in internal areas, automatically turning lights off when spaces are unoccupied to reduce energy consumption. This measure, often listed as EEM23 - Occupancy Sensors for Lighting, can achieve significant savings in buildings with intermittent occupancy, such as offices or schools" (EDGE User Guide, Section 4.4: Lighting Efficiency Measures). Option A, lighting, directly matches this description, as occupancy sensors are primarily associated with lighting control in EDGE. Option B (water taps) is incorrect, as occupancy sensors are not used for water systems in EDGE: "Water taps may be controlled by sensors in some projects, but this is not a recognized measure in EDGE, which focuses on measures like low-flow fixtures for water savings" (EDGE User Guide, Section 5.2: Water Efficiency Measures). Option C (air conditioners) is also incorrect, as occupancy sensors for HVAC are not a standard measure in EDGE: "While occupancy sensors can theoretically control air conditioners, EDGE does not include this as a measure; HVACefficiency is addressed through measures like variable speed drives or efficient chillers" (EDGE Methodology Report Version 2.0, Section 5.1: Energy Efficiency Metrics). Option D (external lighting) is not applicable, as EDGE specifies occupancy sensors for internal areas: "Occupancy sensors in EDGE are applied to internal lighting, not external lighting, which may use timers or photocells instead" (EDGE User Guide, Section 4.4: Lighting Efficiency Measures). The EDGE Methodology Report further confirms: "The energy savings from occupancy sensors in EDGE are calculated based on reduced lighting hours in internal spaces, reflecting typical usage patterns in commercial buildings" (EDGE Methodology Report Version 2.0, Section 5.4:
Lighting Calculations). Thus, occupancy sensors are used for controlling lighting (Option A).
Reference:EDGE User Guide Version 2.1, Section 4.4: Lighting Efficiency Measures, Section 5.2: Water Efficiency Measures; EDGE Methodology Report Version 2.0, Section 5.1: Energy Efficiency Metrics, Section 5.4: Lighting Calculations.
NEW QUESTION # 27
Which of the following measures will impact energy, water, and materials in an air-conditioned hospital with a water-cooled chiller?
- A. Water-efficient urinals
- B. Insulation of the roof
- C. Variable speed drive pumps
- D. Water-efficient dishwashers
Answer: C
Explanation:
In EDGE, measures are evaluated for their impact on energy, water, and embodied energy in materials, the three core pillars of the standard. For an air-conditioned hospital with a water-cooled chiller, the measure must affect all three areas to be the correct answer. The EDGE User Guide provides detailed descriptions of each measure's impact: "Variable speed drive (VSD) pumps in HVAC systems, such as those used in water- cooled chillers, impact energy by reducing electricity consumption through load modulation, water by optimizing the chiller's cooling water circulation (reducing water use in the cooling tower), and materials because their installation may involve additional components with embodied energy, such as the VSD unit itself" (EDGE User Guide, Section 4.2: Energy Efficiency Measures). Option C, variable speed drive pumps, thus impacts all three areas: energy (reduced electricity use), water (less cooling tower water loss), and materials (embodied energy in the VSD equipment). Option A (insulation of the roof) affects energy (reduced cooling load) and materials (embodied energy in insulation), but not water: "Roof insulation reduces energy demand but does not directly impact water consumption" (EDGE User Guide, Section 4.1: Insulation Measures). Option B (water-efficient urinals) impacts water (reduced consumption) and potentially materials (embodied energy in fixtures), but not energy: "Water-efficient urinals save water but have no direct energy impact in EDGE calculations" (EDGE User Guide, Section 5.2: Water Efficiency Measures). Option D (water- efficient dishwashers) also affects water and materials, but not energy in this context: "Water-efficient dishwashers reduce water use, but their energy impact is minimal unless they include hot water savings, which is not specified for hospital dishwashers in EDGE" (EDGE Methodology Report Version 2.0, Section
4.2: Water Savings Calculations). The EDGE Methodology Report further confirms: "VSD pumps in water- cooled chillers are unique in affecting all three EDGE metrics-energy through efficiency, water through reduced cooling tower evaporation, and materials through the embodied energy of the equipment" (EDGE Methodology Report Version 2.0, Section 5.1: Energy Efficiency Metrics). Thus, variable speed drive pumps (Option C) is the measure impacting energy, water, and materials.
Reference:EDGE User Guide Version 2.1, Section 4.2: Energy Efficiency Measures, Section 4.1: Insulation Measures, Section 5.2: Water Efficiency Measures; EDGE Methodology Report Version 2.0, Section 5.1:
Energy Efficiency Metrics, Section 4.2: Water Savings Calculations.
NEW QUESTION # 28
EDGE methodology is NOT based on which of the following factors?
- A. Electricity and water bills
- B. Building type and occupant use
- C. Design and specifications
- D. Climatic conditions of location
Answer: A
Explanation:
The EDGE methodology is designed to calculate resource savings using standardized inputs that reflect the building's context and design, rather than actual operational data. The EDGE Methodology Report outlines the factors used: "The EDGE methodology is based on climatic conditions of the location, building type and occupant use, and design and specifications. Climatic conditions determine heating and cooling loads, building type and occupant use define usage patterns (e.g., residential vs. hotel), and design and specifications include details like insulation levels, glazing properties, and system efficiencies" (EDGE Methodology Report Version 2.0, Section 2.1: Calculation Approach). Option A (climatic conditions of location), Option B (building type and occupant use), and Option C (design and specifications) are all integral to the methodology. However, Option D (electricity and water bills) is not a factor in EDGE calculations, as the methodology uses predictive modeling, not actual consumption data: "EDGE does not base its calculations on electricity and water bills, as these reflect operational performance rather than design potential. Instead, EDGE uses standardized assumptions about energy and water use based on building type, location, and design inputs" (EDGE User Guide, Section 2.1: EDGE Software Overview). The EDGE Methodology Report further clarifies: "Actual utility bills are not used in EDGE, as the software focuses on predicted savings at the design stage, not post-occupancy performance, except in cases like EDGE Zero Carbon certification where operational data is required" (EDGE Methodology Report Version 2.0, Section 2.2: Data Inputs). Since this question pertains to the general EDGE methodology (not Zero Carbon), electricity and water bills are not a factor. The EDGE User Guide also states: "The methodology relies on theoretical models to estimate resource use, ensuring consistency across projects, rather than variable operational data like utility bills" (EDGE User Guide, Section 2.3: Using the EDGE App). Thus, electricity and water bills (Option D) are not part of the EDGE methodology.
Reference:EDGE Methodology Report Version 2.0, Section 2.1: Calculation Approach, Section 2.2: Data Inputs; EDGE User Guide Version 2.1, Section 2.1: EDGE Software Overview, Section 2.3: Using the EDGE App.
NEW QUESTION # 29
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