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.

The EDGE App Results Bar displays key outputs of the software analysis after a project is modeled. The EDGE User Guide details the contents of the Results Bar: “The EDGE App Results Bar provides a summary of the project’s performance, including percentage savings in energy, water, and embodied energy in materials, as well as the incremental cost, payback period, and carbon emissions reduction” (EDGE User Guide, Section 2.4: Interpreting EDGE Results). Option C, incremental cost, is explicitly mentioned as part of the Results Bar, representing the additional cost of implementing green measures. Option A (building type) and Option B (occupant use) are inputs specified by the user during project setup, not outputs in the Results Bar, as noted: “Building type and occupant use are input parameters, not displayed in the Results Bar” (EDGE User Guide, Section 2.2: Project Setup). Option D (climate conditions) is also an input parameter (selected via location), not an output: “Climate conditions are derived from the selected location and are not shown in the Results Bar” (EDGE Methodology Report Version 2.0, Section 3.2: Climate Data Inputs). Thus, incremental cost (Option C) is the correct parameter found in the Results Bar.
Reference: EDGE User Guide Version 2.1, Section 2.4: Interpreting EDGE Results, Section 2.2: Project Setup; EDGE Methodology Report Version 2.0, Section 3.2: Climate Data Inputs.

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.

The EDGE App relies on location-specific climate data to calculate resource savings, but not all cities are listed. The EDGE User Guide provides guidance for such cases: “If the project city is not listed in the EDGE App, the user should choose the closest city to the project location that is available in the database. If necessary, the user can edit the climate data (e.g., temperature, humidity) to better reflect the project’s actual conditions, ensuring accurate calculations” (EDGE User Guide, Section 2.2: Project Setup). Option B, choose the closest city and edit the climate data if necessary, directly matches this protocol. Option A (write to EDGE Certifier and wait) is incorrect, as this is not a required step: “Users are not required to request new cities; they can proceed by selecting the closest city” (EDGE User Guide, Section 2.2: Project Setup). Option C(select any city in the same climate zone globally) is too broad and inaccurate: “Choosing a city from a different region, even in the same climate zone, may lead to incorrect assumptions about local practices and climate” (EDGE Methodology Report Version 2.0, Section 3.2: Climate Data Inputs). Option D (choose the capital city) is also incorrect unless it is the closest: “The capital city should only be selected if it is the nearest available option in the database” (EDGE User Guide, Section 2.2: Project Setup). Thus, the correct protocol is to choose the closest city and edit climate data (Option B).
Reference:EDGE User Guide Version 2.1, Section 2.2: Project Setup; EDGE Methodology Report Version
2.0, Section 3.2: Climate Data Inputs.

The purpose of EDGE, as defined by the International Finance Corporation (IFC), is to make green building accessible and scalable, particularly in emerging markets. The EDGE User Guide states: “EDGE was created by IFC to promote a simple and scalable platform for green buildings, enabling developers to achieve resource efficiency in new constructions through a user-friendly tool that focuses on energy, water, and materials savings” (EDGE User Guide, Section 1.1: Introduction to EDGE). Option C, a simple and scalable platform for green buildings, directly aligns with this mission. Option A (revenue for green building champions) is incorrect, as EDGE’s goal is not financial gain for individuals but broader market transformation: “EDGE aims to transform the building sector, not to generate revenue for specific stakeholders” (EDGE Certification Protocol, Section 1.1: Overview). Option B (few exemplary high- performance buildings) contradicts EDGE’s scalability focus: “EDGE is not about creating a few high- performance buildings but enabling widespread adoption of green practices” (EDGE User Guide, Section 1.1:
Introduction to EDGE). Option D (highly accurate prediction of resource consumption) is also incorrect, as EDGE prioritizes simplicity over precision: “EDGE uses simplified calculations for resource consumption, not highly accurate predictions, to ensure accessibility” (EDGE Methodology Report Version 2.0, Section 2.1:
Calculation Approach). Thus, EDGE promotes a simple and scalable platform (OptionC).
Reference:EDGE User Guide Version 2.1, Section 1.1: Introduction to EDGE; EDGE Certification Protocol, Section 1.1: Overview; EDGE Methodology Report Version 2.0, Section 2.1: Calculation Approach.

EDGE Auditors must meet specific requirements to maintain their licensed status, ensuring they remain active and competent in their role. The EDGE Expert and Auditor Protocols provide detailed guidance: “To maintain their licensed status, EDGE Auditors must undertake at least one building project audit every two years. This requirement ensures that Auditors remain actively engaged in the certification process and maintain their practical experience in verifying EDGE projects” (EDGE Expert and Auditor Protocols, Section 5.1:
Maintaining Auditor Status). Option A, undertake at least one building project audit every two years, directly aligns with this requirement. Option B (attend refresher training for at least two hours every two years) and Option C (attend refresher training for at least two hours every three years) are incorrect, as the protocols specify a different training requirement: “EDGE Auditors must attend refresher training as required by IFC, typically every three years, but the duration is not specified as a minimum of two hours; the focus is on completing the training, not the exact hours” (EDGE Expert and Auditor Protocols, Section 5.1: Maintaining Auditor Status). Option D (undertake at least one building project audit every three years) is also incorrect, as the required frequency is every two years, not three: “A three-year interval for audits does not meet the requirement of one audit every two years, which is necessary to ensure ongoing competence” (EDGE Expert and Auditor Protocols, Section 5.1: Maintaining Auditor Status). The EDGE User Guide supports this by stating: “Auditors maintain their status by conducting at least one audit every two years, ensuring they stay familiar with EDGE standards and procedures through active practice” (EDGE User Guide, Section 6.5:
Working with EDGE Auditors). Additionally, the protocols note: “Failure to conduct an audit within two years may result in a lapse of Auditor status, requiring recertification through additional training or re- examination” (EDGE Expert and Auditor Protocols, Section 5.2: Recertification Conditions). Thus, undertaking at least one audit every two years (Option A) is the correct requirement for maintaining EDGE Auditor status.
Reference:EDGE Expert and Auditor Protocols, Section 5.1: Maintaining Auditor Status, Section5.2:
Recertification Conditions; EDGE User Guide Version 2.1, Section 6.5: Working with EDGE Auditors.

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.

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.

The EDGE software uses a Base Case to establish a benchmark for resource consumption, tailored to local conditions. The EDGE Methodology Report explains how the Base Case is constructed: “The Base Case for external wall materials in hotels is determined using data from market surveys of typical building practices in the project’s country, supplemented by national building performance codes where available. This ensures the baseline reflects local construction norms and regulatory standards” (EDGE Methodology Report Version 2.0, Section 3.1: Base Case Determination). Option A matches this description by referencing typical building practices and national codes. Option B incorrectly refers to global practices and international codes, which EDGE does not use, as the software prioritizes local context. Option C, focusing on corporate specifications, is not part of the Base Case methodology, as the Base Case is standardized, not project-specific. Option D, involving local suppliers or accreditation, is irrelevant to how EDGE determines the Base Case, which relies on broader market data rather than supplier-specificinformation.
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.

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 EDGE Standard defines specific project types eligible for certification levels, including EDGE Advanced, which requires at least 40% energy savings. The EDGE Certification Protocol specifies: “EDGE Advanced certification is available for new constructions that achieve a minimum of 40% energy savings compared to the base case, applicable to building typologies such as homes, hotels, offices, hospitals, retail, and schools” (EDGE Certification Protocol, Section 2.3: Certification Levels). Option A, new constructions, aligns with this scope, as EDGE focuses on new buildings across supported typologies. Option B, green lease agreements, is not a building type and is outside EDGE’s certification framework. Option C, infrastructure constructions, and Option D, parks and landscape projects, are also not covered under EDGE typologies, as confirmed by the EDGE User Guide: “EDGE certification applies to new buildings and major renovations of specific typologies, excluding infrastructure or landscape-only projects” (EDGE User Guide, Section 1.2:
Scope of EDGE Certification). Thus, only new constructions qualify for EDGE Advanced certification.
Reference:EDGE Certification Protocol, Section 2.3: Certification Levels; EDGE User Guide Version 2.1, Section 1.2: Scope of EDGE Certification.

At the design stage (Preliminary Certification), EDGE requires specific documentation to verify that proposed measures, such as ceiling fans, will be implemented as claimed. The EDGE Certification Protocol specifies:
“For measures like ceiling fans at the design stage, the Client must provide evidence such as manufacturer’s data sheets that detail the make, model, and specifications (e.g., power rating, air movement capacity) to confirm the fans meet the efficiency criteria for improving thermal comfort” (EDGE Certification Protocol, Section 3.2: Audit Requirements). Option C, manufacturer’s data sheet of the ceiling fans, aligns with this requirement, as it provides the necessary specifications for verification. Option A (photographs of installed ceiling fans) is relevant at the post-construction stage, not design: “Photographs are required at the post- construction stage to confirm installation, not at the design stage” (EDGE Certification Protocol, Section 3.4:
Post-Construction Requirements). Option B (CFD assessment) is not required, as EDGE uses simplified calculations: “EDGE does not require CFD assessments for air movement; fan specifications suffice for design-stage verification” (EDGE Methodology Report Version 2.0, Section 5.5: Thermal Comfort Measures). Option D (purchase receipts) is also a post-construction requirement: “Purchase receipts verify installation, not design intent” (EDGE Certification Protocol, Section 3.4: Post-Construction Requirements).
Thus, the manufacturer’s data sheet (Option C) is the correct evidence at the design stage.
Reference:EDGE Certification Protocol, Section 3.2: Audit Requirements, Section 3.4: Post-Construction Requirements; EDGE Methodology Report Version 2.0, Section 5.5: Thermal Comfort Measures.

EDGE Zero Carbon certification requires periodic renewal to ensure ongoing compliance with zero carbon standards, particularly since it often involves carbon offsets or renewable energy commitments that may change over time. The EDGE Certification Protocol specifies the renewal timeline: “EDGE Zero Carbon certification must be renewed initially after two years to verify that the building continues to meet the zero carbon requirements, including the use of carbon offsets or renewable energy. Subsequently, renewal is required every four years to ensure long-term compliance with the standard” (EDGE Certification Protocol, Section 2.3: Certification Levels). Option A, initially after two years, subsequently every four years, directly matches this requirement.Option B (initially after four years, subsequently every two years) reverses the timeline, which does not align with the protocol: “The initial two-year renewal ensures early verification, while the four-year cycle applies thereafter to balance monitoring with practicality” (EDGE Certification Protocol, Section 2.3: Certification Levels). Option C (every two years if using carbon offsets, or every four years if using 100% renewable energy) and Option D (every four years if using carbon offsets, or every two years if using 100% renewable energy) introduce a distinction based on the method of achieving zero carbon status, which is not supported by EDGE documentation: “The renewal timeline for EDGE Zero Carbon is consistent regardless of whether carbon offsets or renewable energy are used, as both methods require ongoing verification of performance and offset purchases” (EDGE User Guide, Section 6.3: Advanced Certifications). The EDGE Methodology Report adds: “The two-year initial renewal allows for confirmation of operational data and offset validity, while the four-year subsequent renewal cycle ensures sustained commitment without excessive administrative burden” (EDGE Methodology Report Version 2.0, Section 2.3:
Zero Carbon Calculations). The EDGE User Guide further confirms: “EDGE Zero Carbon certification renewal follows a standard schedule of two years initially, then every four years, to maintain the integrity of the zero carbon claim over time” (EDGE User Guide, Section 6.3: Advanced Certifications). Thus, the correct renewal schedule is initially after two years, then every four years (Option A).
Reference:EDGE Certification Protocol, Section 2.3: Certification Levels; EDGE User Guide Version 2.1, Section 6.3: Advanced Certifications; EDGE Methodology Report Version 2.0, Section 2.3: Zero Carbon Calculations.

In EDGE, the Base Case is a standardized benchmark used to calculate utility cost savings, reflecting typical resource consumption for a building in its location and typology. The term “virtual energy” in EDGE refers to the energy required for heating, cooling, lighting, and other systems, modeled as if the building operates under typical conditions without efficiency measures. The EDGE User Guide explains how utility costs are calculated: “The Base Case for utility costs includes the cost of virtual energy, which represents the modeled energy consumption for the building type in the absence of efficiency measures, alongside water consumption, using localtariffs to estimate financial impacts” (EDGE User Guide, Section 2.3: Using the EDGE App). Option B, includes the cost of virtual energy, aligns with this approach, as the Base Case accounts for all modeled energy use to establish a baseline for savings. Option A (excludes the cost of virtual energy) is incorrect, as virtual energy is a core component of the Base Case: “Virtual energy in EDGE is the theoretical energy use calculated for the Base Case, including heating, cooling, and lighting, and its cost is always included in utility cost calculations” (EDGE Methodology Report Version 2.0, Section 4.4: Cost Savings Calculations). Option C (excludes the cost of virtual energy only in homes) and Option D (includes the cost of virtual energy only in homes) are also incorrect, as the treatment of virtual energy is consistent across all typologies: “The Base Case methodology, including the inclusion of virtual energy costs, applies uniformly to all building types in EDGE, whether homes, hotels, or offices, to ensure a fair comparison of savings” (EDGE User Guide, Section 2.3: Using the EDGE App). The EDGE Methodology Report further clarifies: “Utility costs in the Base Case are derived from virtual energy and water consumption, reflecting typical usage patterns for the building type and location, ensuring that savings calculations are comprehensive and include all relevant energy demands” (EDGE Methodology Report Version 2.0, Section 4.4: Cost Savings Calculations). This consistent inclusion of virtual energy costs across all typologies makes Option B the correct answer.
Reference:EDGE User Guide Version 2.1, Section 2.3: Using the EDGE App; EDGE Methodology Report Version 2.0, Section 4.4: Cost Savings Calculations.

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.

Water consumption in hotels varies significantly based on usage patterns, with guest-related activities often dominating the water use breakdown. The EDGE User Guide provides detailed insights into water use in hotels: “In a typical 3-star business hotel, the largest contributor to water consumption is showers in guest rooms, accounting for approximately 40-50% of total water use due to frequent guest showers, especially in urban hotels with high occupancy. Laundry, toilets, and faucets also contribute, but to a lesser extent, with laundry at 15-20%, toilets at 10-15%, and faucets at 5-10%” (EDGE User Guide, Section 5.2: Water Efficiency Measures). Option A, showers in guest rooms, aligns with this breakdown as the element likely to consume the most water. Option B (laundry) is significant but lower than showers: “Laundry in 3-star hotels consumes less water than showers, as laundry is typically centralized and less frequent than daily guest showers” (EDGE Methodology Report Version 2.0, Section 4.2: Water Savings Calculations). Option C (toilets in lobby area) is a minor contributor, as lobby toilets serve fewer users compared to guest rooms:
“Toilets in public areas like the lobby have lower usage compared to guest room facilities, contributing only a small fraction of total water use in hotels” (EDGE User Guide, Section 5.2: Water Efficiency Measures).
Option D (faucets in guest rooms) also uses less water than showers: “Faucets in guest rooms, used for handwashing or brushing teeth, have lower flow rates and usage frequency compared to showers, which often run for 5-10 minutes per use” (EDGE Methodology Report Version 2.0, Section 4.2: Water Savings Calculations). The EDGE User Guide further elaborates: “In business hotels, showers dominate water use due to high occupancy and guest behavior, making measures like low-flow shower heads particularly effective for water savings” (EDGE User Guide, Section 5.2: Water Efficiency Measures). The EDGE Methodology Report adds: “For a 3-star hotel with 100 rooms and 70% occupancy, showers can account for 45 liters per guest per day, compared to 15 liters for laundry, 10 liters for toilets, and 5 liters for faucets, based on standard usage assumptions” (EDGE Methodology Report Version 2.0, Section 4.2: Water Savings Calculations).
Thus, showers in guest rooms (Option A) are likely to consume the most water in this context.
Reference:EDGE User Guide Version 2.1, Section 5.2: Water Efficiency Measures; EDGE Methodology Report Version 2.0, Section 4.2: Water Savings Calculations.

Utility cost savings in EDGE are calculated based on reductions in resource consumption sourced from the supply grid, as these are the costs directly borne by the building owner. The EDGE User Guide explains:
“Utility cost savings in EDGE are calculated based on the reduction in energy and water consumption from the supply grid, using local tariffs for electricity and water to convert resource savings into financial savings” (EDGE User Guide, Section 2.4: Interpreting EDGE Results). Option D, energy and water consumption from the supply grid, aligns with this definition, focusing on grid-supplied resources. Option A (electricity and water consumption) is partially correct but lacks specificity about the source: “Electricity and water must be grid-supplied to be included in utility cost savings; onsite generation is excluded” (EDGE Methodology Report Version2.0, Section 4.4: Cost Savings Calculations). Option B (generator fuel and water consumption) is incorrect, as generator fuel is not part of utility cost savings: “Generator fuel costs are not included in utility savings, as EDGE focuses on grid-supplied utilities” (EDGE User Guide, Section 2.4: Interpreting EDGE Results). Option C (building energy and water consumption) is too broad, including onsite sources: “Building consumption includes all sources, but utility savings are grid-specific” (EDGE Methodology Report Version
2.0, Section 4.4: Cost Savings Calculations). Thus, energy and water from the supply grid (Option D) is the correct basis for utility cost savings.
Reference:EDGE User Guide Version 2.1, Section 2.4: Interpreting EDGE Results; EDGE Methodology Report Version 2.0, Section 4.4: Cost Savings Calculations.

The EDGE framework strictly enforces separation of roles to maintain integrity and avoid conflicts of interest during the certification process. The EDGE Expert and Auditor Protocols explicitly address this issue: “An individual cannot serve as both the EDGE Expert and EDGE Auditor on the same project. This separation ensures independence in the audit process, as the Expert’s role as a consultant advising the project team could bias the Auditor’s objective assessment of the project’s compliance with EDGE standards” (EDGE Expert and Auditor Protocols, Section 2.3: Conflict of Interest). Option A, no, an EDGE Expert cannot be the EDGE Auditor on the same project, directly reflects this rule. Option B (no, even if the Certifier agrees to special terms) adds an unnecessary condition, as the protocols do not allow exceptions: “No exceptions are permitted for an individualto serve in both roles on the same project, regardless of agreements or special terms” (EDGE Expert and Auditor Protocols, Section 2.3: Conflict of Interest). Option C (yes, in all cases) is incorrect, as it contradicts the conflict-of-interest rules: “Allowing dual roles in all cases would undermine the impartiality required for certification” (EDGE Certification Protocol, Section 3.1: Certification Process). Option D (yes, if no other Auditors are available) is also incorrect, as availability does not override the conflict-of-interest prohibition: “Even if no other Auditors are available, the roles must remain separate; the Client must find a different Auditor or delay the audit” (EDGE Expert and Auditor Protocols, Section 4.1: Audit Process). The EDGE User Guide reinforces this principle: “The separation of Expert and Auditor roles ensures a fair and unbiased certification process, protecting the credibility of EDGE certification” (EDGE User Guide, Section
6.4: Working with EDGE Experts). Thus, it is not possible to be both (Option A).
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 6.4:
Working with EDGE Experts.

The EDGE App assigns specific user roles to manage project collaboration and access within the software.
The EDGE User Guide details the available roles: “In the EDGE App, user roles for project teams include Project Admin, who manages the project and has full access to edit and submit assessments, and other roles like Project Collaborator for team members contributing to the assessment. The Project Admin is responsible for overseeing the project’s self-assessment and coordinating with the team” (EDGE User Guide, Section 2.2:
Project Setup). Option A, Project Admin, is explicitly listed as a role in the EDGE App. Option B (Project Architect) and Option C (Project Engineer) are not defined roles in the software, as the guide clarifies: “Roles like architect or engineer are project-specific titles, not EDGE App roles; team members are grouped under Project Admin or Collaborator” (EDGE User Guide, Section 2.2: Project Setup). Option D (Project Auditor) is also incorrect, as auditors have a separate role outside the project team: “Project Auditors are assigned by the Certification Provider and access the assessment separately, not as partof the project team’s roles in the EDGE App” (EDGE Certification Protocol, Section 3.1: Certification Process). Thus, Project Admin (Option A) is the correct user role available in the EDGE App.
Reference:EDGE User Guide Version 2.1, Section 2.2: Project Setup; EDGE Certification Protocol, Section
3.1: Certification Process.