The EDGE EDGE-Expert Questions & Practice Test are Available On-Demand [Q12-Q28]

The Coefficient of Performance (COP) is a critical metric in EDGE for assessing the energy efficiency of chillers, a common green building design element. The EDGE Methodology Report defines COP for electrical chillers: “The Coefficient of Performance (COP) of an electrical chiller is defined as the ratio of thermal output (cooling provided, measured in kW) to electrical input (power consumed, measured in kW). A higher COP indicates greater efficiency, as more cooling is produced per unit of electricity” (EDGE Methodology Report Version 2.0, Section 5.1: Energy Efficiency Metrics). Option B, thermal output / electrical input, matches this definition directly. Option A (thermal output / thermal input) is incorrect, as it applies to heat- driven systems like absorption chillers, not electrical ones. Option C (electrical input / thermal output) inverts the ratio, representing the inverse of COP. Option D (electrical output / electrical input) is irrelevant, as chillers produce thermal output, not electrical output. The EDGE User Guide reinforces this: “For air-cooled and water-cooled chillers, COP is calculated as thermal output divided by electrical input to evaluate energy efficiency” (EDGE User Guide, Section 4.2: Energy Efficiency Measures).
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.

The EDGE certification process assigns clear responsibilities to various stakeholders to ensure a smooth and accountable process. The EDGE Certification Protocol defines the role of the ProjectOwner (also referred to as the EDGE Client): “The Project Owner, as the EDGE Client, is responsible for the entire project within the EDGE certification system. This includes providing all necessary project documentation (e.g., drawings, specifications, and self-assessments), ensuring access to the site for audits, and paying the audit and certification fees as required by the Certification Provider” (EDGE Certification Protocol, Section 2.1: Roles and Responsibilities). Option C, Project Owner, directly aligns with this comprehensive responsibility. Option A (EDGE Expert) is incorrect, as the Expert’s role is advisory: “The EDGE Expert provides consultancy services, assisting with documentation and measure selection, but the ultimate responsibility for submission and payment lies with the Project Owner” (EDGE Expert and Auditor Protocols, Section 2.1: Roles of EDGE Expert). Option B (EDGE Auditor) is also incorrect, as the Auditor’s role is to verify compliance, not manage the project: “The EDGE Auditor conducts independent audits and is not responsible for project management, documentation provision, or fee payments” (EDGE Expert and Auditor Protocols, Section 2.2: Roles of EDGE Auditor). Option D (EDGE Certification Provider) is responsible for issuing certificates and overseeing the process, not managing the project: “The EDGE Certification Provider, such as GBCI, reviews the Auditor’s recommendation and issues certificates, but does not manage the project or pay fees” (EDGE Certification Protocol, Section 3.3: Certification Decision). The EDGE User Guide further reinforces this:
“The Project Owner must coordinate all aspects of the certification process, ensuring documentation is complete, site access is granted for post-construction audits, and all fees are paid to the Certification Provider in a timely manner” (EDGE User Guide, Section 6.1: Project Preparation). This holistic responsibility makes the Project Owner (Option C) the correct answer.
Reference:EDGE Certification Protocol, Section 2.1: Roles and Responsibilities, Section 3.3: Certification Decision; EDGE Expert and Auditor Protocols, Section 2.1: Roles of EDGE Expert, Section 2.2: Roles of EDGE Auditor; EDGE User Guide Version 2.1, Section 6.1: Project Preparation.

Embodied energy in materials is one of the three core pillars of the EDGE standard, focusing on reducing the environmental impact of construction materials. The EDGE User Guide lists measures that specifically target embodied energy: “To reduce embodied energy in materials, EDGE includes measures such as the use of fly ash concrete, which substitutes a portion of cement with fly ash, a byproduct of coal combustion, thereby lowering the embodied energy and carbon footprint of concrete production” (EDGE User Guide, Section 7.2:
Materials Efficiency Measures). Option B, fly ash concrete, directly aligns with this measure, as it reduces the need for high-energy cement production. Option A (external shading) impacts energy by reducing cooling loads but does not directly address embodied energy: “External shading reduces operational energy use but does not contribute to embodied energy savings unless the shading materials themselves are low-impact, which is not specified in EDGE” (EDGE User Guide, Section 3.5: Passive Design Strategies). Option C (occupancy sensors) is an energy efficiency measure for lighting, not materials: “Occupancy sensors reduce lighting energy use but have no direct impact on embodied energy in materials” (EDGE User Guide, Section
4.4: Lighting Efficiency Measures). Option D (low-flow shower heads) targets water efficiency, not materials:
“Low-flow shower heads reduce water consumption, but their embodied energy impact is minimal and not a focus of EDGE materials measures” (EDGE User Guide, Section 5.2: Water Efficiency Measures). The EDGE MethodologyReport further elaborates: “Fly ash concrete can reduce embodied energy by up to 20% compared to traditional concrete, making it a key measure in EDGE for materials efficiency, especially in high-volume applications like hospitals or hotels” (EDGE Methodology Report Version 2.0, Section 6.1:
Embodied Energy in Materials). Other materials measures in EDGE, such as using recycled steel or bamboo, are not listed among the options, making fly ash concrete (Option B) the correct choice for reducing embodied energy.
Reference:EDGE User Guide Version 2.1, Section 7.2: Materials Efficiency Measures, Section 3.5: Passive Design Strategies, Section 4.4: Lighting Efficiency Measures, Section 5.2: Water Efficiency Measures; EDGE Methodology Report Version 2.0, Section 6.1: Embodied Energy in Materials.

The EDGE framework strictly prohibits Auditors from engaging in roles that could compromise their independence, such as providing design consultancy on the same project they are auditing. The EDGE Expert and Auditor Protocols address this scenario explicitly: “An EDGE Auditor must not accept any role in the design development of a project they are auditing, as this creates a conflict of interest by blurring the lines between consultancy and independent verification. If the Client requests the Auditor to take on a design role, the Auditor should decline and may refer the Client to another qualified professional who is not involved in the audit process” (EDGE Expert and Auditor Protocols, Section 2.3: Conflict of Interest). Option B, refer the Client to an associate within the organization who works in another department, but is qualified and available to carry out the work, aligns with this guidance, as it maintains the Auditor’s independence while helping the Client find a suitable replacement. Option A (resign from the audit role) is an overreaction, as the request itself does not compromise the Auditor’s position unless accepted: “The Auditor is not required to resign unless they have already engaged in a conflicting role, which can be avoided by declining the request” (EDGE Expert and Auditor Protocols, Section 4.1: Audit Process). Option C (accept the additional commission) is unethical, as it violates conflict-of-interest rules: “Accepting a design role on a project being audited undermines the Auditor’s impartiality, as they would be auditing theirown work, which is strictly prohibited” (EDGE Certification Protocol, Section 3.1: Certification Process). Option D (refer the Client to an associate working with the Auditor on the EDGE audit) is also incorrect, as this associate is already involved in the audit, creating a potential conflict: “Referring the Client to someone involved in the same audit does not resolve the conflict of interest, as the audit team must remain independent from design activities” (EDGE Expert and Auditor Protocols, Section 2.3: Conflict of Interest). The EDGE User Guide reinforces this principle: “Auditors must maintain strict separation from design roles to ensure an unbiased audit, and should assist the Client by referring them to independent professionals if needed” (EDGE User Guide, Section 6.5:
Working with EDGE Auditors). Thus, referring the Client to a qualified associate in another department (Option B) is the correct action.
Reference:EDGE Expert and Auditor Protocols, Section 2.3: Conflict of Interest, Section 4.1: Audit Process; EDGE Certification Protocol, Section 3.1: Certification Process; EDGE User Guide Version 2.1, Section 6.5:
Working with EDGE Auditors.

Adoption of green building practices in EDGE is influenced by factors that incentivize or mandate resource efficiency. The EDGE User Guide discusses drivers for green building adoption: “Factors that lead to higher adoption of green building practices include green building regulations, which mandate compliance with efficiency standards; public awareness and capacity building, which educate stakeholders on the benefits of green design; and clear visibility of estimated savings and costs, which provide financial justification for green measures” (EDGE User Guide, Section 1.1: Introduction to EDGE). Option A (green building regulations) directly encourages adoption by enforcing standards: “Regulations requiring energy or water efficiency standards push developers to adopt green practices to meet legal requirements” (EDGE Certification Protocol, Section 1.2: Scope of EDGE Standard). Option C (public awareness and capacity building) increases adoption by educating stakeholders: “Awareness campaigns and training programs increase demand for greenbuildings by informing developers, owners, and tenants of their benefits” (EDGE User Guide, Section 1.1: Introduction to EDGE). Option D (clear visibility of estimated savings and costs) incentivizes adoption by demonstrating financial benefits: “EDGE’s display of savings and payback periods motivates adoption by showing the return on investment for green measures” (EDGE User Guide, Section 2.4:
Interpreting EDGE Results). However, Option B (lower electricity supply costs) may not lead to higher adoption, as it reduces the financial incentive to save energy: “Lower electricity supply costs decrease the cost savings from energy efficiency measures, potentially discouraging investment in green practices, as the payback period for measures like insulation or efficient lighting becomes longer” (EDGE Methodology Report Version 2.0, Section 4.4: Cost Savings Calculations). The EDGE User Guide further elaborates: “High utility costs often drive green building adoption by making energy and water savings more financially attractive, whereas lower costs can reduce the urgency to implement efficiency measures” (EDGE User Guide, Section 1.2: Scope of EDGE Certification). In this context, lower electricity supply costs (Option B) may not encourage green building practices, as the economic motivation for energy savings diminishes.
Reference:EDGE User Guide Version 2.1, Section 1.1: Introduction to EDGE, Section 1.2: Scope of EDGE Certification, Section 2.4: Interpreting EDGE Results; EDGE Certification Protocol, Section 1.2: Scope of EDGE Standard; EDGE Methodology Report Version 2.0, Section 4.4: Cost Savings Calculations.

EDGE certification applies to specific building typologies that align with its focus on resource efficiency in new constructions and major renovations. The EDGE User Guide lists the covered building types: “EDGE certification is available for the following building typologies: homes, hotels, offices, hospitals, retail, schools, warehouses, and light industry buildings. These typologies are selected because they have predictable energy, water, and materials usage patterns that can be modeled in the EDGE software” (EDGE User Guide, Section 1.2: Scope of EDGE Certification). Option A (hospitals), Option B (schools), and Option D (warehouses) are explicitly included in this list, making them eligible for EDGE certification. However, Option C (factories – heavy industry) is not covered, as clarified in the EDGE Certification Protocol: “Heavy industry factories are not covered by EDGE, as their energy and water usage patterns are highly variable and process-driven, making them unsuitable for the standardized modeling approach used in EDGE. Light industry buildings, such as small manufacturing facilities with predictable usage, are included, but heavy industry, such as steel production or chemical manufacturing, is excluded” (EDGE Certification Protocol, Section 1.2: Scope of EDGE Standard). The EDGE Methodology Report further explains: “Heavy industry factories involve complex industrial processes that dominate resource consumption, which cannot be accurately modeled using EDGE’s simplified methodology, unlike hospitals, schools, or warehouses, which have more consistent occupancy and usage patterns” (EDGE Methodology Report Version 2.0, Section 2.1:
Calculation Approach). The EDGE User Guide also notes: “Building types like heavy industry factories are outside the scope of EDGE, as the software is designed for commercial and residential buildings with typical HVAC, lighting, and water demands” (EDGE User Guide, Section 1.2: Scope of EDGE Certification).
Therefore, factories (heavy industry) (Option C) is the building type not covered by EDGE.
Reference:EDGE User Guide Version 2.1, Section 1.2: Scope of EDGE Certification; EDGE Certification Protocol, Section 1.2: Scope of EDGE Standard; EDGE Methodology Report Version 2.0, Section 2.1:
Calculation Approach.

The timeline for conducting a site audit as part of the EDGE certification process is critical to ensure that the project’s implementation aligns with the design-stage claims. The EDGE Certification Protocol specifies the timeframe for post-construction audits: “A site audit for EDGE certification must take place within 12 months of the project’s practical completion date to verify that the green building measures have been implemented as claimed in the self-assessment. This ensures that the audit reflects the building’s as-built condition while the project details are still current” (EDGE Certification Protocol, Section 3.4: Post-Construction Requirements).
Option A, 12 months, directly matches this requirement. Option B (18 months), Option C (24 months), and Option D (36 months) exceed the specified timeframe, which could lead to discrepancies due to changes in the building’s condition or operation: “Conducting the site audit beyond 12 months may result in inaccuracies, as building systems or occupancy patterns may change, affecting the verification of measures” (EDGE Expert and Auditor Protocols, Section 4.4: Site Audit Procedures). The EDGE User Guide also supports this timeline: “To maintain the integrity of the certification process, the site audit should be scheduled within 12 months of practical completion, allowing the Auditor to assess the building in its initial operational state” (EDGE User Guide, Section 6.3: Post-Construction Certification). The 12-month limit ensures that the audit is timely and relevant, making Option A the correct answer. Additionally, the EDGE Certification Protocol notes: “Extensions beyond 12 months may be granted only in exceptional circumstances, subject toapproval by the Certification Provider, but this is not the standard requirement” (EDGE Certification Protocol, Section
3.4: Post-Construction Requirements). Since the question asks for the standard timeframe, 12 months (Option A) applies.
Reference:EDGE Certification Protocol, Section 3.4: Post-Construction Requirements; EDGE Expert and Auditor Protocols, Section 4.4: Site Audit Procedures; EDGE User Guide Version 2.1, Section 6.3: Post- Construction Certification.

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.

In a hot and dry climate without air-conditioning, thermal comfort relies on passive design strategies that reduce heat gain or improve air movement. The EDGE User Guide discusses passive measures for thermal comfort: “In hot climates without air-conditioning, thermal comfort can be improved through ceiling fans, which enhance air movement, solar shading, which reduces solar heat gain, and wall and roof insulation, which minimizes heat transfer into the building” (EDGE User Guide, Section 3.5: Passive Design Strategies).
Option A (ceiling fans) improves air movement, directly impacting thermal comfort: “Ceiling fans increase air speed, enhancing evaporative cooling on occupants’ skin” (EDGE Methodology Report Version 2.0, Section
5.5: Thermal Comfort Measures). Option B (solar shading) reduces heat gain, improving comfort: “External shading reduces solar radiation entering the building, lowering indoor temperatures” (EDGE User Guide, Section 3.5: Passive Design Strategies). Option C (wall and roof insulation) also enhances comfort by reducing heat transfer: “Insulation lowers the U-value of the building envelope, maintaining cooler indoor temperatures” (EDGE User Guide, Section 4.1: Insulation Measures). Option D (solar photovoltaics) generates electricity but does not directly affect thermal comfort in a building without air-conditioning: “Solar photovoltaics contribute to energy supply but do not directly influence indoor thermal comfort unless used to power cooling systems, which are absent in this scenario” (EDGE Methodology Report Version 2.0, Section
5.3: Energy Measures). Thus, solar photovoltaics (Option D) will not impact thermal comfort in this context.
Reference:EDGE User Guide Version 2.1, Section 3.5: Passive Design Strategies, Section 4.1: Insulation Measures; EDGE Methodology Report Version 2.0, Section 5.5: Thermal Comfort Measures, Section 5.3:
Energy Measures.

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.

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.

Efficiency in fans and pumps is a critical aspect of green building design in EDGE, particularly for reducing energy consumption in HVAC systems. The EDGE User Guide provides detailed guidance on efficiency measures for mechanical systems: “Variable speed drives (VSDs) deliver the highest efficiency in fans and pumps by adjusting the motor speed to match the actual demand, significantly reducing energy consumption compared to fixed-speed systems. VSDs can achieve energy savings of up to 30-50% in HVAC applications by avoiding the constant operation at full speed typical of single or constant speed drives” (EDGE User Guide, Section 4.2: Energy Efficiency Measures). Option D, variable speed drive, aligns with this description as the most efficient option. Option A (two speed drive) offers some efficiency by allowing two operating speeds, but it is less flexible than VSDs: “Two speed drives provide limited efficiency gains, as they cannot continuously adjust to varying loads, unlike variable speed drives” (EDGE Methodology Report Version 2.0, Section 5.1: Energy Efficiency Metrics). Option B (single speed drive) and Option C (constant speed drive) are essentially the same in this context, operating at a fixed speed regardless of demand, leading to energy waste: “Single speed or constant speed drives run at a fixed rate, resulting in higher energy consumption compared to variable speed drives, which modulate speed based on need” (EDGE User Guide, Section 4.2:
Energy Efficiency Measures). The EDGE Methodology Report further elaborates: “Variable speed drives are the most efficient option for fans and pumps in EDGE, as they minimize energy use by matching output to demand, unlike two speed or constant speed drives, which operate inefficiently under partial loads” (EDGE Methodology Report Version 2.0, Section 5.1: Energy Efficiency Metrics). This makes variable speed drives (Option D) the clear choice for delivering the highest efficiency in fans and pumps.
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.

The design certification stage (Preliminary Certification) in EDGE requires specific actions from the Client to ensure the project can be audited and certified. The EDGE Certification Protocol outlines the process: “To complete the design certification stage, the EDGE Client must provide the EDGE Auditor with access to the completed self-assessment in the EDGE software, along with all supporting documentation, such as drawings, specifications, and calculations, to verify the selected measures” (EDGE Certification Protocol, Section 3.1:
Certification Process). Option C, provide the EDGE Auditor access to the self-assessment and all supporting documentation, matches this requirement. Option A (internally review the EDGE measures) is a preparatory step, not a certification requirement: “Internal reviews are recommended but not mandated for certification” (EDGE User Guide, Section 6.1: Project Preparation). Option B (access the EDGE software and complete a self-assessment) is a prerequisite to the audit, not the final step for design certification: “The self-assessment must be completed before the audit, but certification requires submission to the Auditor” (EDGE Certification Protocol, Section 3.1: Certification Process). Option D (sign an agreement with a certification partner) is incorrect, as this is typically handled during project registration, not design certification: “Agreements with Certification Providers are signed prior to registration, not at the design stage” (EDGE Certification Protocol, Section 2.1: Registration). Thus, providing the Auditor access (Option C) is the required action.
Reference:EDGE Certification Protocol, Section 3.1: Certification Process, Section 2.1: Registration; EDGE User Guide Version 2.1, Section 6.1: Project Preparation.

The EDGE certification process involves specific steps and fees, including a registration fee, to formally enter a project into the certification system. The EDGE Certification Protocol outlines the timing of the registration fee: “The registration fee must be paid prior to registration of the project in the EDGE system. This fee is required to activate the project in the EDGE App, allowing the Client to begin the self-assessment process and proceed toward certification” (EDGE Certification Protocol, Section 2.1: Registration). Option B, prior to registration, directly matches this requirement, as payment is a prerequisite for starting the certification process. Option A (prior to site audit) is incorrect, as the site audit occurs later, at the post-construction stage:
“The site audit takes place after practical completion, well after registration, so the registration fee is not tied to this stage” (EDGE Certification Protocol, Section 3.4: Post-Construction Requirements). Option C (after the registration) is also incorrect, as payment must precede registration: “Registration cannot be completed without payment of the registration fee, ensuring the project is officially entered into the system” (EDGE User Guide, Section 6.1: Project Preparation). Option D (after certification has been awarded) is wrong, as certification occurs at the end of the process, after registration and audits: “Certification fees may be paid after certification, but the registration fee is required at the outset, before any assessment begins” (EDGE Certification Protocol, Section 3.3: Certification Decision). The EDGE User Guide further clarifies: “Paying the registration fee prior to registration ensures that the project is formally recognized by the EDGE system, enabling access to the software and certification resources” (EDGE User Guide, Section 6.1: Project Preparation). Thus, the registration fee must be paid prior to registration (Option B).
Reference:EDGE Certification Protocol, Section 2.1: Registration, Section 3.4: Post-Construction Requirements, Section 3.3: Certification Decision; EDGE User Guide Version 2.1, Section 6.1: Project Preparation.

The post-construction stage in EDGE certification requires evidence to confirm that the efficiency measures claimed in the design stage have been implemented as specified. For window glazing, which affects energy efficiency through its U-value (thermal transmittance) and SHGC (Solar Heat Gain Coefficient), the EDGE Certification Protocol provides clear requirements: “At the post-construction stage, the Client must provide manufacturer’s data sheets for the window glazing measure, showing the make and model, U-value, and SHGC of the installed glass, to confirm that the glazing matches the specifications claimed in the self- assessment and meets the energy efficiency requirements” (EDGE Certification Protocol, Section 3.4: Post- Construction Requirements). Option C, manufacturer’s data sheets showing the make and model, U-value, and SHGC of the installed glass, directly matches this requirement, as it provides the specific technical data needed to verify compliance. Option A (design building elevations marking the window glass specifications) is relevant at the design stage, not post-construction: “Design elevations are required at the preliminary stage to show intended glazing specifications, not after construction” (EDGE Certification Protocol, Section 3.2:
Audit Requirements). Option B (bill of quantities with specifications highlighted) is insufficient on its own, as it may not provide detailed technical data: “Bills of quantities may support purchase verification, but manufacturer’s data sheets are required for technical specifications like U-value and SHGC” (EDGE Certification Protocol, Section 3.4: Post-Construction Requirements). Option D (window schedule showing major glass types) is helpful but not sufficient, as it lacks the detailed technical data: “Window schedules may indicate glass types, but they do not replace the need for manufacturer’s data sheets with U-value and SHGC at post-construction” (EDGE User Guide, Section 6.2: Documentation Requirements). The EDGE User Guide further clarifies: “For glazing measures, post-construction evidence must confirm the installed product’s performance through manufacturer’s data sheets, ensuring alignment with the design-stage claims” (EDGE User Guide, Section 4.1: Insulation Measures). Thus, manufacturer’s data sheets (Option C) are required at the post-construction stage.
Reference:EDGE Certification Protocol, Section 3.4: Post-Construction Requirements, Section 3.2: Audit Requirements; EDGE User Guide Version 2.1, Section 6.2: Documentation Requirements, Section 4.1:
Insulation Measures.

In EDGE, certain measures are mandatory to ensure a baseline level of resource efficiency, while others are optional depending on the project’s goals. The EDGE User Guide specifies mandatory measures for certification: “To achieve EDGE certification, projects must meet minimum requirements, including mandatory measures such as insulation of the roof to reduce heat gain or loss, ensuring a basic level of energy efficiency across all building typologies in climates where thermal performance is relevant” (EDGE User Guide, Section 4.1: Insulation Measures). Option B, insulation of roof, is identified as a required measure in EDGE, particularly in climates where heating or cooling loads are significant, which applies to most regions.
Option A (green roof) is an optional measure, not mandatory: “Green roofs are an optional measure in EDGE, contributing to energy and water savings but not required for certification” (EDGE User Guide, Section 4.5:
Additional Energy Measures). Option C (lighting controls) is also optional, as EDGE allows flexibility in lighting strategies: “Lighting controls, such as occupancy sensors, are optional measures that can enhance energy savings but are not mandatory” (EDGE User Guide, Section 4.4: Lighting Efficiency Measures).
Option D (efficient lighting for internal areas) is encouraged but not required: “Efficient lighting for internal areas (EEM22) is an optional measure, requiring at least90% of lamps to be efficient, but projects can achieve certification without it if other energy measures meet the 20% savings threshold” (EDGE User Guide, Section
4.4: Lighting Efficiency Measures). The EDGE Certification Protocol reinforces this: “Mandatory measures like roof insulation ensure a minimum standard of energy efficiency, while measures like green roofs, lighting controls, and efficient lighting are optional and contribute to overall savings” (EDGE Certification Protocol, Section 2.2: Certification Requirements). Therefore, insulation of the roof (Option B) is the required measure among the options.
Reference:EDGE User Guide Version 2.1, Section 4.1: Insulation Measures, Section 4.4: Lighting Efficiency Measures, Section 4.5: Additional Energy Measures; EDGE Certification Protocol, Section 2.2: Certification Requirements.

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.