USDA Salinas Sustainability Report 2017_09_29.pdf

UNITED STATES DEPARTMENT OF

AGRICULTURE

SALINAS, CALIFORNIA

Sustainable Design Narrative

Final Submission

September 29, 2017

Prepared by:

Setty & Associates, Ltd.

3040 Williams Drive, Suite 600

Fairfax, Virginia 22031 S&A No SAG16056.01

The Agricultural Research Technology Center Final Submission

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Sustainable Design Narrative The project has been designed to comply with the U.S. Green Building Council’s Leadership and Energy and Environmental Design for New Construction v2009 Rating System (LEED-NC v2009) and the Buildings ARS Bulletin 15-134.2. Buildings ARS Bulletin 15-134.2 calls for compliance with Guiding Principles for Sustainable Federal Buildings (2016). However the scope of work calls for energy reduction 30% below ASHRAE 90.1-2004—this differs from the Guiding Principles, which requires 30% below ASHRAE 90.1-2007. The SOW requirement has been followed and documented.

Referenced Standards

Buildings ARS Bulletin 15-134.2 dated 4/7/15

Guiding Principles for Sustainable Federal Buildings (2016)

ASHRAE 90.1-2004: Energy Standard for Buildings Except Low-Rise Residential (Note: Per scope of work)

U.S. Green Building Council’s Leadership in Energy and Environmental Design Rating System for Building Design and Construction: New Construction Version 2009 (LEED-NC v2009) (Note: Per LEED, ASHRAE 90.1-2007: Energy Standard for Buildings Except Low-Rise Residential Buildings )

Third Party Certification Requirements

The project is currently not pursuing third-party certification. However it is designed to achieve LEED-NCv2009 Silver certification. The current LEED Report and Scorecard are provided at the end of this document.

High Performance Sustainable Buildings Checklist

The following checklist outlines how the project intends to comply with the Guiding Principles for Sustainable Federal Buildings 2016. This checklist will be updated for the final project submission. Each of the individual HPSB requirements is assessed using one of the following thresholds:

Fully Compliant – the requirement is in full compliance and is marked “Yes (Y)”.

Partially Compliant – the requirement is compliant to the greatest degree possible, based on LCCE; mission restriction; location/regional restriction; or locale restriction, and is marked “Yes (Y-P)" with justification;

Not Yet Evaluated, are requirements that are in the process of or will be evaluated and marked “Not Yet Evaluated (N/E)”;

Not Applicable – the requirement is not applicable, based on LCCE; mission exclusion; location/regional exclusion; or locale exclusion, and is marked “Not Applicable (N/A)” with justification.

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HPSB Requirements

Section Requirement Y Y-P N/E N/A Respon. Comments

1 Employ Integrated Design Principles

Y Owner Architect

A collaborative process was taken during the design of the project. The commissioning specification is included in the design package and a CxA is on the project.

2 Optimize Energy Performance

Y Owner

MEP

Architect

The project is expected to reduce energy use by 30.2% based on ASHRAE 90.1 2004 (per the SOW). Building level energy metering is in the project. Following the construction of the building, the project should be registered with Energy Star Portfolio manager to report energy use.

3 Protect and Conserve Water

Y Owner

MEP

Landscape Architect

The project is designed to reduce indoor water use by 30%.

Native and adaptive landscaping covers the site, which is expected to reduce outdoor water use by 50%.

Building-level water meters are in the project.

The project design reduces stormwater runoff and discharges of polluted water offsite.

4 Enhance Indoor Environmental Quality

Y Owner Architect

a) ASHRAE 62.1-2007 and ASHRAE Standard 55-2004 are being followed for this project.

b) While great efforts were made to include lighting control that considers daylight contribution—such as the daylit lighting control zones adjacent to the laboratory windows separate from further interior control zones—there proved to be sufficient constraints due to the west/east building orientation and the fixed exterior shading that neither blocks direct sunlit sufficiently nor allows for daylight to penetrate the labs when the sun was at an angle that does not create direct glare. Therefore all that could be provided are separate zones based on the distance of interior electrical lighting in the relevant spaces.

Lighting controls are provided for 90% of occupants. All multi-occupant rooms have dimmable lighting controls.

c) Low-emitting materials are specified for the project. Indoor Air Quality Plans are required to be implemented per the project specifications.

d) Bicycle storage cabinets are provided for the building occupants.

5 Reduce Environmental Impact of Materials

Y Architect

MEP

Energy

Materials that are manufactured regionally and are made of recycled content and/or are bio-based have been specified for the project.

Green cleaning is under consideration for the project.

Ozone depleting compounds are not used in the project.

95% of construction waste is required for the project per the specifications.

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HPSB Requirements

Section Requirement Y Y-P N/E N/A Respon. Comments

6 Assess and Consider Climate Change Risks

N/E Project Team To be completed.

LEED 2009 for New Construction and Major Renovation Project Scorecard Final Submission

USDA ARTC

50 7 1 52 LEED 2009 for New Construction and Major Renovation Final Scorecard - 9/26/2017

Y L U N

15 3 8 Possible Points 26 10 3 2 Indoor Environmental Quality Possible Points 15

Y L U N Y L U N

Y Prereq 1 Construction Activity Pollution Prevention Y Prereq 1 Minimum IAQ Performance

1 Credit 1 Site Selection 1 Y Prereq 2 Environmental Tobacco Smoke (ETS) Control

5 Credit 2 E Development Density & Community Connectivity 5 1 Credit 1 Outside Air Delivery Monitoring 1

1 Credit 3 Brownfield Redevelopment 1 1 Credit 2 Increased Ventilation 1

6 Credit 4.1 E Alternative Transportation, Public Transportation Access 6 1 Credit 3.1 Construction IAQ Management Plan, During Construction 1

1 Credit 4.2 E Alternative Transportation, Bicycle Storage & Changing Rooms 1 1 Credit 3.2 Construction IAQ Management Plan, Before Occupancy 1

3 Credit 4.3 E Alternative Transportation, Low Emitting & Fuel Efficient Vehicles 3 1 Credit 4.1 Low-Emitting Materials, Adhesives & Sealants 1

2 Credit 4.4 E Alternative Transportation, Parking Capacity 2 1 Credit 4.2 Low-Emitting Materials, Paints & Coatings 1

1 Credit 5.1 E Site Development, Protect or Restore Open Space 1 1 Credit 4.3 Low-Emitting Materials, Flooring Systems 1

1 Credit 5.2 E Site Development, Maximize Open Space 1 1 Credit 4.4 Low-Emitting Materials, Composite Wood & Agrifiber Products 1

1 Credit 6.1 E Stormwater Design, Quantity Control 1 1 Credit 5 Indoor Chemical & Pollutant Source Control 1

1 Credit 6.2 E Stormwater Design, Quality Control 1 1 Credit 6.1 Controllability of Systems, Lighting 1

1 Credit 7.1 E Heat Island Effect, Non-Roof 1 1 Credit 6.2 Controllability of Systems, Thermal Comfort 1

1 Credit 7.2 E Heat Island Effect, Roof 1 1 Credit 7.1 Thermal Comfort, Design 1

1 Credit 8 1 1 Credit 7.2 Thermal Comfort, Verification 1

1 Credit 8.1 E Daylight & Views, Daylight 75% of Spaces 1

4 6 Water Efficiency Possible Points 10 1 Credit 8.2 E Daylight & Views, Views for 90% of Spaces 1

Y L U N

Y Prereq 1 Water Use Reduction, 20% Reduction 5 1 Innovation & Design Process Possible Points 6

2 2 Credit 1 4 Y L U N

2 Credit 2 E 2 1 Credit 1.1 Innovation in Design Green Cleaing 1

2 2 Credit 3 E Water Use Reduction, Reduce by 30, 35 or 40% 4 1 Credit 1.2 Innovation in Design Integrated Pest Management 1

1 Credit 1.3 Exemplary Performance SSc5.2 1

8 27 Possible Points 35 1 Credit 1.4 Exemplary Performance MRc2 (95%) 1

Y L U N 1 Credit 1.5 Exemplary Performance MRc 7 (95%) 1

Y Prereq 1 Fundamental Commissioning of the Building Energy Systems 1 Credit 2 LEED Accredited Professional 1

Y Prereq 2 Minimum Energy Performance

Y Prereq 3 Fundamental Refrigerant Management 1 3 Regional Priority Credits Possible Points 4

4 15 Credit 1 E Optimize Energy Performance, % beyond ASHRAE 90.1-2007 19 Y L U N

7 Credit 2 E On-Site Renewable Energy, 1% to 13% of total building demand 7 1 Credit 1.1 Regional Priority 1: IEQc8.1 1

2 Credit 3 E Enhanced Commissioning 2 1 Credit 1.2 Regional Priority 2: SSc5.2 1

2 Credit 4 2 1 Credit 1.3 Regional Priority 3: EAc2 1

3 Credit 5 3 1 Credit 1.4 Regional Priority 4: WEc3 (40%) 1

2 Credit 6 E 2

50 7 1 52 TOTAL Possible Points 110

7 1 6 Possible Points 14 Y L U N

Y L U N

Y Prereq 1

3 Credit 1.1 Building Reuse, Maintain 55-95% of Existing Walls, Floors & Roof 3

1 Credit 1.2 Building Reuse, Maintain 50% of Interior Non-structural Elements 1

2 Credit 2 E Construction Waste Management, Divert 50 or 75% from Disposal 2

2 Credit 3 E Materials Reuse: Reuse 5% or 10% 2

2 Credit 4 E Recycled Content: 10% or 20% 2

2 Credit 5 E Regional Materials 2

1 Credit 6 E Rapidly Renewable Materials 1

1 Credit 7 E 1

Silver

Energy & Atmosphere

Storage & Collection of Recyclables

Materials & Resources

Sustainable Sites

Light Pollution Reduction

Water Efficient Landscaping

Innovative Wastewater Technologies

E = Exemplary Performance possible for an Innovation & Design credit

This Scorecard is based on HDR’s analysis of potential LEED credit attainment given the current proposed design and information provided by the owner.

HDR will perform its services with the degree of skill and care normally exercised by similarly situated members of the profession performing similar services at the same time and in the same locale as the Project. Credits and points may move from Yes to Likely or Unlikely or No throughout the design and construction process. Credit attainment is ultimately decided by Green Business Certification Inc. (GBCI) and is beyond HDR’s control.

Certified Wood

Enhanced Refrigerant Management

Measurement & Verification

Green Power

Certified: 40-49 points Silver: 50-59 points Gold: 60-79 points Platinum: 80+ points

USDA ARTC

ASSESSMENT FOR LEED-NC v2009 COMPLIANCE Matrix of Sustainable Design Features - Final Submission

SUSTAINABLE

DESIGN CATEGORY

SPECIFIC REQUIREMENTS DESIGN FEATURES STATUS

LEED Certification Goal Silver

SS PreReq 1:

Construction Activity Pollution Prevention

Erosion and Sediment Control (ESC) Plan conforming to 2003 EPA Construction General Permit (CGP) describing provisions to comply with Phase I and II of the NPDES - OR - local standards and codes, whichever is more stringent.

Drawings C7.0 and C7.1 show erosion and sedimentation plan. This is a Construction Phase credit. The construction team will document compliance.

REQUIRED

PREREQUISITE

SS Credit 1:

Site Selection

Avoid development of inappropriate sites: 1. Prime farmland; 2. Undeveloped land lower than 5 ft above 100-yr floodplain; 3. Threatened species habitat; 4. Within 100 ft of wetlands; 5.

Undeveloped land within 50 ft of water; 6. Public parkland

The project is on an developed site and complies with the credit criteria. YES

SS Credit 2:

Development Density and Community Connectivity

Option 1: Previously developed site and in community of minimum density of 60,000 SF/Acre

Option 2: Previously developed site; within 1/2 mile of residential zone with 10 units/acre and 1/2 mile of 10 services with pedestrian access.

The residential area has fewer than 10 homes per acre. The closest apartment complex is just over a half mile away. The project is not compliant with the credit requirements.

NO

SS Credit 3:

Brownfield Redevelopment

Remediate and develop on a contaminated or brownfield site.

This is not applicable to the project site. NO

SS Credit 4.1:

Alternative Transportation:

Public Transportation Access

Intent of credit: reduce pollution and land development impacts from automobile use.

Promote public transportation and mass transit.

Requirements: Locate project within 1/2 mile of commuter rail - OR - locate project within 1/4 mile of ≥ one stop for 2 or more campus bus lines.

There is one stop for two Monterey-Salinas Transit bus lines within a 1/4 mile walking distance of the site. The two bus lines are:

41 Northridge Salinas 47 Hartnell - Alisal Campus

YES

SS Credit 4.2:

Alternative Transportation:

Bicycle Storage and Changing Rooms

Promote bicycle transportation:

Provide bike racks for 5% of all facility users and showering facilities for 0.5% of all facility users within 200 yards of the facility entrance.

Based on the approximate 92 staff members and 10 visitors per day, 1 shower and 5 bike racks are required.

The USDA confirmed there are 3 showers within 200 yards of the East and West Building entrances.

There are 6 modular bike storage units along the West Lab Wing. The walking distances for each building are: West Lab Wing 33 feet, East Lab Wing 84, which are both well below the 200 yard maximum.

YES

SS Credit 4.3:

Alternative Transportation:

Low Emitting & Fuel Efficient Vehicles

Promote use of Low-Emitting and Fuel Efficient vehicles through combination of preferred parking spaces (5%), vehicles, and/or refueling stations.

There are 129 parking spaces. There are 4 LEV/FEV spaces.

The project needs 7 LEV/FEV spaces to be in compliance.

MAYBE

SS Credit 4.4:

Alternative Transportation:

Parking Capacity

Size parking capacity to meet, but not exceed, minimum local zoning requirements.

Provide preferred parking1 for carpools or vanpools for 5% of the total parking spaces.

There are 129 parking spaces. There are 7 van and carpool spaces. The project is in compliance with this credit.

YES

SS Credit 5.1:

Site Development:

Protect or Restore Habitat

On previously developed or graded sites restore or protect the greater of: 50% (exclusive of building footprint) OR 20% (including building footprint) of the site area with native or adapted vegetation.

53% of the site will be restored with native and adaptive plants. YES

SS Credit 5.2:

Site Development:

Maximize Open Space

Provide vegetated open space equal to building footprint (this is Option 2 when there are no local zoning requirements as is common on Federal facilities).

The open space area is double the buildings' footprint. This will earn an Exemplary Performance point in the Innovation Credit category.

YES

GENERAL

SUSTAINABLE SITES

Matrix of Sustainable Design Features - Final Submission

SUSTAINABLE

DESIGN CATEGORY

SPECIFIC REQUIREMENTS DESIGN FEATURES STATUS

SS Credit 6.1:

Stormwater Design:

Quantity Control

If existing imperviousness is 50% or less implement a stormwater management plan that prevents the post-development peak discharge rate and quantity from exceeding the pre-development for the 1-yr and 2-yr, 24-hr storms

- OR -

If the existing imperviousness is greater than 50% reduce rate and quantity by 25% of the 2-yr, 24-hr storm.

We anticipate achieving this credit. Will need calculations to confirm. YES

SS Credit 6.2:

Stormwater Design:

Quality Control

Capture and treat the stormwater runoff from 90% of the average annual rainfall. 80% of the average annual post development TSS must be removed.

Stormwater that is infiltrated on site is considered to be 100% treated.

It is unlikely this credit is achievable. Will need calculations to confirm. NO

SS Credit 7.1:

Heat Island Effect:

Non-roof

Reduce heat island effects by:

Option 1: 50% of site hardscape shall be shaded, open grid pavement, or light-colored pavement

(SRI ≥ 29).

Option 2: Place 50% of parking spaces under cover. Any roof to shade or cover parking must have SRI ≥ 29.

Asphaltic concrete used for roads is being used for the roads and does not meet the solar reflectance index values.

NO

SS Credit 7.2:

Heat Island Effect: Roof

Reduce heat island effects by:

Option 1: SRI minimums for roofing materials for 75% of roof (low-slope ≥ 78, steep ≥ 29).

Option 2: Green roof for 50% of roof Option 3: Combination of Options 1 and 2

The east and west building roofs are low sloping white thermoplastic polyolefin roof with an solar reflectance value of 80.

The Head house has a steep slope standing seam metal roof that is anodized clear metal which has an solar reflectance index value of 61.

The greenhouse roofs are not applicable since they are clear and meant to grow plants.

YES

SS Credit 8:

Light Pollution Reduction

Adopt measures that reduce the amount of light leaving the site at night. Both interior lighting and exterior site lighting must meet requirements.

This credit was evaluated using the LEED-NCv4 Light Pollution Reduction credit (it is easier to document and achieve than v3), BUG Rating Option.

This credit is achievable as long as the sign light at the entrance is facing the sign and not lighting the sky.

YES

WE PreReq 1 Water Use Reduction

Reduce use of potable water by 20% below EPA baseline requirements.

The project is in compliance with an savings of 30.12% REQUIRED

PREREQUISITE

YES

2 POINTS

WE Credit 2:

Innovative Wastewater Technologies

Reduce potable water for sewage conveyance by 50% - OR - provide tertiary treatment of 50% of wastewater and re-use or infiltrate it on-site.

The project is not incorporating innovative wastewater technologies into the design.

NO

YES

2 POINTS

EA PreReq 1:

Fundamental

Commissioning of the Building Energy Systems

Develop and implement a commissioning plan for the following energy-related systems, at a minimum: HVAC and controls, lighting and daylighting controls, domestic hot water, and renewable energy sources.

The commissioning specification is included in the specifications. This is a Construction Phase prerequisite. The Commissioning Agent will document it.

REQUIRED

PREREQUISITE

EA PreReq 2:

Minimum Energy

Performance

Comply with the mandatory provisions and prescriptive (or performance) requirements of ASHRAE 90.1-2007. The project must meet a minimum 10% reduction in the energy cost budget.

The East Wing Building's energy savings is 19.3% The West Wing Building's energy savings is 18.1% Please see energy analysis report in the appendix for further details on the energy saving measures.

REQUIRED

PREREQUISITE

EA PreReq 3:

Fundamental Refrigerant

Management

Do not use CFC-based refrigerants in new HVAC systems. When reusing existing HVAC equipment, complete a CFC phase-out.

R-410A is used in the Scroll Compressor and it is compliant. REQUIRED

PREREQUISITE

YES

4 POINTS

ENERGY and ATMOSPHERE

WATER EFFICIENCY

Demonstrate a percentage improvement in the proposed building performance rating compared to the baseline building performance rating per

ASHRAE 90.1-2007.

The East Wing Building's energy savings is 19.3% The West Wing Building's energy savings is 18.1% Please see energy analysis report in the appendix for further details on the energy saving measures.

WE Credit 1 Water Efficient Landscaping

Option 1: Reduce irrigation needs by 50%.

Option 2: Do not use potable water for irrigation.

The landscape design uses mainly native and adaptive plants and drip irrigation.

WE Credit 3:

Water Use Reduction, 30%, 35%, or 40% Reduction

Reduce use of water in building by 20% is required as a prerequisite. Further improvement earns more points.

The project will earn two points for it's 30.12% savings.

EA Credit 1:

Optimize Energy

Performance

Matrix of Sustainable Design Features - Final Submission

SUSTAINABLE

DESIGN CATEGORY

SPECIFIC REQUIREMENTS DESIGN FEATURES STATUS

NO

EA Credit 3:

Enhanced Commissioning In addition to prerequisite commissioning required, bring the CxA on to the project earlier in the design process to review and comment on the DD and CD design.

The commissioning specification is included in the specifications. This is a Construction Phase credit. The Commissioning Agent will document it.

YES

EA Credit 4:

Enhanced Refrigerant

Management

Select refrigerants for the HVAC system that minimize the contribution to ozone depletion and global warming AND do not use fire systems with ozone-depleting substances.

R-410A is used in the Scroll Compressor and it is compliant. YES

EA Credit 5:

Measurement and

Verification

Provide metering capability such that long term accountability for building energy usage can be managed.

This credit is not being pursued. NO

EA Credit 6:

Green Power

Provide at least 35% of the building’s electricity from renewable sources by engaging in at least a two-year renewable energy contract.

Green Power is not being purchased for this project. This credit is achievable without any design or construction changes, and still can be earned if the project goes for certification.

NO

MR PreReq 1:

Storage & Collection of

Recyclables

Provide a collection and storage area for recycling of paper, corrugated cardboard, glass, plastics and metals.

USDA confirmed there are separate collection containers for plastic bags and films, foils, aluminum and glass (plain and redeemable). Additionally, there two recycle dumpsters that are emptied weekly.

REQUIRED

PREREQUISITE

NO

MR Credit 1.2:

Building Reuse, Maintain

50% of Interior Non- Structural Elements

Reuse existing interior non-structural elements (interior walls, doors, floor coverings and ceiling systems) in at least 50% (by area) of the completed building.

This is not applicable for the project. NO

YES

2 POINTS

MR Credit 3:

Materials Reuse Use salvaged, refurbished or reused materials for at least 5%, based on cost, of the total value of materials on the project, not including MEP systems. Second point for at least 10%.

This is not applicable for the project. NO

YES

2 POINTS

YES

2 POINTS

MR Credit 6:

Rapidly Renewable

Materials

2.5 % (based on cost) of building materials and products must be from rapidly renewable sources.

This is included in the specifications. This is a Construction Phase credit.

The construction team will document compliance.

MAYBE

MR Credit 7:

Certified Wood

50% of wood-based materials and products must be FSC certified.

This is included in the specifications. This is a Construction Phase credit.

The construction team will document compliance.

YES

Use materials and products that have been extracted, harvested or recovered, as well as manufactured, within 500 miles of the project site for a minimum of 10% (1pt) or 20% (2pts) (based on cost) of the total materials value.

This is included in the specifications. This is a Construction Phase credit.

The construction team will document compliance.

MR Credit 1.1:

Building Reuse, Maintain

55%, 75%, or 95% of Existing Walls, Floors &

Roof

Maintain existing building structure (including structural floor and roof decking) and envelope (the exterior skin and framing, excluding window assemblies and nonstructural roofing materials).

55% = 1 Point 75% = 2 Points 95% = 3 Points

This is not applicable for the project.

MATERIALS & RESOURCES

There are no on-site renewable energy systems.Use on-site renewable energy systems to offset building energy cost.

EA Credit 2:

On-Site Renewable

Energy

MR Credit 5:

Regional Materials

MR Credit 2: Construction Waste Management

Recycle and/or salvage at least 50% (1pt) or 75% (2pts) of non-hazardous construction and demolition debris.

This is included in the specifications. This is a Construction Phase credit.

The construction team will document compliance.

MR Credit 4:

Recycled Content

Use materials with recycled content at least 10% (1pt) or 20% (2pts) (based on cost) of the total value of the materials in the project.

This is included in the specifications. This is a Construction Phase credit.

The construction team will document compliance.

Matrix of Sustainable Design Features - Final Submission

SUSTAINABLE

DESIGN CATEGORY

SPECIFIC REQUIREMENTS DESIGN FEATURES STATUS

EQ PreReq 1:

Minimum IAQ Performance

Ventilation rates and requirements to follow ASHRAE 62.1-2007, minimum requirements of Sections 4 through 7.

ASHRAE 62.1-2007 is being followed for this project and this credit will be achieved.

REQUIRED

PREREQUISITE

EQ PreReq 2:

Environmental Tobacco Smoke (ETS) Control

Control impacts of tobacco smoke by locating external smoking areas at least 25 feet from points of air entry AND either prohibiting smoking in the building or limiting to designated smoking rooms.

This is achievable as long as signage is posted on the exterior of the building informing people of the no-smoking policy.

REQUIRED

PREREQUISITE

EQ Credit 1:

Outdoor Air Delivery

Monitoring

Ensure ventilation system performance by installing monitoring and alarms, either CO2 monitors or direct outdoor airflow measurement devices.

This credit is achievable if CO2 monitors are added to all multioccupant spaces. Three of the six multioccupant spaces are missing CO2 monitors.

MAYBE

EQ Credit 2:

Increase Ventilation

Increase outdoor air ventilation rates to all occupied spaces by at least 30% above the minimum rates required by ASHRAE Standard 62.1-2007.

The mechanical engineer has confirmed this credit is achievable with the current design.

YES

EQ Credit 3.1:

Construction IAQ

Management Plan - During Construction

Develop and implement an IAQ Management Plan for the construction phases to meet the recommendations of SMACNA, protect absorptive materials from moisture, and install MERV 8 filters on return air grilles during construction. Replace media immediately prior to occupancy.

This is included in the specifications. This is a Construction Phase credit.

The construction team will document compliance.

YES

EQ Credit 3.2:

Construction IAQ

Management Plan - Before Occupancy

Use the buildings HVAC system to remove airborne particulates with a flush-out period prior to occupancy. A total of 14,000 cf of outside air must be delivered per SF of floor area. Air temperature must remain above 60 deg F and relative humidity below 60%. - OR - Submit an air quality test certified by an industrial hygienist.

This is included in the specifications. This is a Construction Phase credit.

The construction team will document compliance.

YES

EQ Credit 4.1:

Low-Emitting Materials, Adhesives and Sealants

All adhesives and sealants used within the building's weather-barrier shall comply with South Coast Air Quality Management District (SCAQMD) Rule #1168. VOC limits must meet the table set forth in the LEED 2009 Reference Guide.

This is included in the specifications. This is a Construction Phase credit.

The construction team will document compliance.

YES

EQ Credit 4.2:

Low-Emitting Materials, Paints & Coatings

All paints and coatings used within the building's weather-barrier shall meet the VOC limits of Green Seal GS-11, 1993.

Anti-corrosive and rust paints applied to interior ferrous metal substrates must not exceed the VOC content limit of 250 g/L established in Green Seal standard GC-03, 1997.

Clear wood finishes, floor coatings, stains, primers, and shellacs applied to interior elements must not exceed the VOC content limits established in SCAQMD Rule 1113, 2004.

This is included in the specifications. This is a Construction Phase credit.

The construction team will document compliance.

YES

EQ Credit 4.3:

Low-Emitting Materials, Flooring Systems

All carpet and pad shall meet the requirements of the Green Label Plus program and carpet adhesive shall comply with EQ Credit 4.1.

All hard surface flooring must be certified compliant with the FloorScore standard. Flooring products covered by FloorScore are vinyl, linoleum, laminate, wood, and ceramic flooring; also rubber flooring and wall base.

Concrete, wood, bamboo, and cork floor finishes such as sealer, stain, & finish must meet EQ 4.2.

Tile setting adhesives and grout must meet SCAQMD Rule #1168, 2005.

This is included in the specifications. This is a Construction Phase credit.

The construction team will document compliance.

YES

EQ Credit 4.4:

Low-Emitting Materials, Composite Wood and

Agrifiber Products

Composite wood, agrifiber products, and laminating adhesives shall not contain added urea-formaldehyde resins. Includes: particleboard, medium density fiberboard (MDF), plywood, wheatboard, strawboard, panel substrates and door cores.

This is included in the specifications. This is a Construction Phase credit.

The construction team will document compliance.

YES

EQ Credit 5:

Indoor Chemical and

Pollutant Source Control

Design to minimize and control pollutant entry into buildings and later cross-contamination of regularly occupied areas with walk-off mats, proper building ventilation and pressurization, and filters.

The main entries have a grated floor and rooms where chemicals are used have deck-to-deck partions, negative pressure, and door closers.

The project is in compliance with credit requirements.

YES

EQ Credit 6.1:

Controllability of Systems, Lighting

Provide individual lighting controls for 90% of occupants.

This credit is achievable if there is a light control at each lab bench and task lighting at each workstation.

MAYBE

INDOOR ENVIRONMENTAL QUALITY

Matrix of Sustainable Design Features - Final Submission

SUSTAINABLE

DESIGN CATEGORY

SPECIFIC REQUIREMENTS DESIGN FEATURES STATUS

EQ Credit 6.2:

Controllability of Systems, Thermal Comfort

Increase individual comfort by providing controls over one factor of comfort for 50% of the building occupants. Controls include air temperature, radiant temperature, air speed and humidity.

There are thermostats in every office, lab, lab support room and multi-occupant space and open office areas have at least thermostat. While the open office areas bring down the overall percentage, the project provides thermostats for just over 50% of occupants. The project is in compliance with the credit requirements.

YES

EQ Credit 7.1:

Thermal Comfort, Design

Design HVAC systems and the building envelope to meet the requirements of ASHRAE Standard 55- 2004.

ASHRAE Standard 55-2004 is being follow for this project and the credit is achievable.

YES

EQ Credit 7.2:

Thermal Comfort, Verification

Survey building occupants on thermal comfort after occupancy and make a plan for improvement if 20% of the occupants are not satisfied.

NOTE: EQc7.1 must be obtained to qualify for EQc7.2

It is unclear at this time whether USDA will administer a thermal comfort survey.

MAYBE

EQ Credit 8.1:

Daylight and Views, Daylight 75% of Spaces

Provide daylighting for 75% of the occupied spaces. While great efforts were made to include lighting control that considers daylight contribution—such as the daylit lighting control zones adjacent to the laboratory windows separate from further interior control zones—there proved to be sufficient constraints due to the west/east building orientation and the fixed exterior shading that neither blocks direct sunlit sufficiently nor allows for daylight to penetrate the labs when the sun was at an angle that does not create direct glare. Therefore all that could be provided are separate zones based on the distance of interior electrical lighting in the relevant spaces. This credit is not achievable.

NO

EQ Credit 8.2:

Daylight and Views, Daylight 90% of Spaces

Provide views for 90% of the building occupants. Less than 90% of building occupants have views, therefore this credit is not achievable.

NO

ID Credit 1.1 LEED EBOMv3 Green Cleaning The USDA location strives to use green products and procedures and intends to use green approaches in the new building to the extent feasible.

This credit will have to be confirmed and a policy developed if the project goes to certification.

YES

ID Credit 1.2 LEED EBOMv3 Integrated Pest Management The USDA location currently has a IPM policy. This credit will have to be confirmed and the policy reviewed per LEED requirements if this credit goes for certification.

YES

ID Credit 1.3 Exemplary Performance SSc5.2 YES

ID Credit 1.4 Exemplary Performance MRc2 (95%) This is included in the specifications. YES

ID Credit 1.5 Exemplary Performance MRc 7 (95%) This is under consideration. A cost estimate is required before it can be confirmed.

MAYBE

ID Credit 2.0:

LEED Accredited

Professional

At least one principal participant of the project team that has successfully completed the LEED Accredited Professional exam.

There are multiple LEED AP BD+C professionals on the project team. YES

Credit 1.1 Regional Priority 1: IEQc8.1 NO Credit 1.2 Regional Priority 2: SSc5.2 YES Credit 1.3 Regional Priority 3: EAc2 NO Credit 1.4 Regional Priority 4: WEc3 (40%) NO Alternate

LEED INNOVATION CREDITS

REGIONAL PRIORITY CREDIT OPTIONS FOR ZIP CODE 93905

Energy Analysis Report

USDA Agricultural Research and Technology Center

Salinas, CA

Aug 24, 2017

Mechanical Electrical Plumbing Fire Protection Energy Sustainable Design Project Management Construction Management Consultant Design Engineers

5185 MacArthur Boulevard, Suite 220

WASHINGTON, DC 20016

Tel: 202-393-1523

Fax: 202-315-3059

USDA ARTC USDA ARTC SALINAS DESIGN DOC UPDATES

SALINAS, CA PRELIMINARY ENERGY ANALYSIS REPORT

PAGE i

TABLE OF CONTENTS

1. EXECUTIVE SUMMARY

2. MODELING OVERVIEW

3. ASHRAE STANDARD 90.1 CRITERIA – BASELINE MODEL

3.1 Baseline Case - Building Envelope Requirements

3.2 Baseline Case – Water Heating Equipment Requirements

3.3 Baseline Case – Interior and Exterior Lighting Controls

3.4 Baseline Case – Lighting Power Density Requirements

3.5 Baseline Case – HVAC System Type

4. MODELING INPUTS

5. BASELINE CASE RESULTS

6. PROPOSED CASE RESULTS

7. CONCLUSION AND RECOMMENDATIONS

APPENDIX A

1. EXECUTIVE SUMMARY

The USDA Agricultural Research and Technology Center (ARTC) building is located in Salinas California. This is a new laboratory and office building with 3 floors. A series of preliminary energy analyses have been carried out to evaluate conformance with the ARS Facilities Design Standards, California Code of Regulations Title 24, and the requirement of EPACT of 2005, stating that the new facility will have energy consumption levels that are at least 30 percent below the level set by ASHRAE 90.1-2004, if LLC effective, as well as LEED New Construction version 2009, of which the EAP2 requires projects must demonstrate 18% improvement for new building per ASHRAE 90.1-2007.

Also since there are two building with in project boundary, EAP1 and EAP2 of LEED New Construction v2009 states that each building must demonstrate individual compliance for group certification, east wing and west wing are simulated separately for LEED compliance per ASHRAE 90.1-2007.

The following table and graphs represent, in brief, the results of the energy simulations carried out for the Baseline, (according to ASHRAE 90.1-2004 and ASHRAE 90.1-2007) and the Proposed (2017) cases.

Table 1-1: Energy Use Intensity and Energy Consumption per year - ASHRAE 90.1 2004

Case kBtu/ft2-yr MBtu/yr 2017 Design

Energy Saving %

Baseline -ASHRAE 90.1-2004 115 7658.95 32.1%

2017 Designed 78.1 5202.32

Table 1-2: Energy Use Intensity and Energy Consumption per year - ASHRAE 90.1 2007

Case kBtu/ft2-yr MBtu/yr $/yr

2017 Design

Cost Saving %

East Wing Baseline - ASHRAE 90.1-2007 95.1 3510.63 $119286 19.3%

East Wing - 2017 Design 72.9 2699.03 $96295

West Wing Baseline - ASHRAE 90.1-2007 119.6 3552.9 $128740 18.1%

West Wing - 2017 Design 94.0 2790.35 $105480

Figure 1-1: Baseline and Proposed - Electricity and Gas Consumption

20000

40000

60000

80000

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120000

140000

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180000

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

N at ru al

G as

M

B tu

El e ct ri ci ty kW h

Baseline and Proposed - Electricity and Gas Consumption Baseline 2004 Electricity Proposed 2017 Electricity

Baseline 2004 Gas Proposed 2017 Gas

Figure 1-2: East Wing Baseline and Proposed - Electricity and Gas Consumption

Figure 1-3: East Wing Baseline and Proposed - Electricity and Gas Consumption

Compared to the Baseline Case per ASHRAE 90.1-2004, the Proposed Case achieves 32.1% energy savings. Compare to ASHRAE 90.1-2007, proposed design for east wing achieves 19.3% energy cost savings, and proposed design for west wing achieves 18.1% energy cost saving.

10000

20000

30000

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Baseline and Proposed - Electricity and Gas Consumption

East wing 2007 Baseline Electricity East wing 2017 Proposed Electricity

East wing 2007 Baseline 2007 Gas East wing 2017 Proposed Gas

10000

20000

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Baseline and Proposed - Electricity and Gas Consumption

West wing 2007 Baseline Electricity West wing 2017 Proposed Electricity

West wing 2007 Baseline Gas West wing 2017 Proposed Gas

2. MODELING OVERVIEW

The USDA ARTC building is located in Salinas California. The following figures present 3-D images of the building model in eQuest.

Figure 2-1: North-East View of the Building Model

Figure 2-2: South-West View of the Building Model eQuest, a Building Simulation Software package was employed to model the building energy use. The software utilizes a DOE 2.2 Building Design Language (BDL) engine. The baseline models are based on Appendix G of ASHRAE

90.1-2004 and 90.1-2007 Standards; the 2004 edition used by the ARS Facilities Design Guide and the 2007 used as a review tool by the USGBC. After the baseline models are established, energy efficient measures (EEMs) can be modeled for comparison. After all the EEMs are analyzed, the final building model can be established. This final building model shall be compared to the ASHRAE baseline model for final savings. These results will be used to determine the final cost savings and thereby the eligible LEED points under Credit 1 of the Energy and Atmosphere section. For ARS, the goal is to achieve 30% improvement in energy efficiency as compared to the ASHRAE 90.1-

2004 baseline model.

3. ASHRAE STANDARD 90.1 CRITERIA – BASELINE MODEL

ASHRAE 90.1 provides the minimum requirements for the design of energy efficient buildings. ASHRAE 90.1 is written in mandatory, enforceable language, which is being adopted into building codes, and also addresses modifications to existing buildings.

The Standard is organized by design discipline of requirements for the building envelope, lighting and HVAC systems. Each discipline is autonomous and independent of each other. Envelope design criteria are specified separately for different classes of wall, roof and floor construction.

The Standard also features multiple compliance options for prescriptive performance and total building analysis. A true prescriptive compliance path that specifies insulation R-values is offered as one of the options for building envelope compliance.

There are two accepted approaches in attaining compliance with the Standard (Option B will be followed for this type of building):

A. Show that each system, piece of equipment, or component being replaced complies individually with the applicable code requirements.

B. The designer can evaluate the entire building and its energy consumption. By doing so, trade-offs are allowed between systems and envelope decisions. These trade-offs will allow the design of an overall building with lower energy consumption than a building of comparable size and scope of alteration.

ASHRAE 90.1 criteria address the following building components:

A. Building envelope storm windows, glazing, roofs, walls, doors, and existing energy deficient features.

B. Service water heating, replacing water heaters with more efficient ones.

C. HVAC equipment, replacing refrigerants, efficiency of boilers, chillers and all relevant equipment.

D. Lighting control devices, high efficiency luminaries, and natural light incorporation.

E. Other equipment: replacing or relocating existing motors.

As seen in the following tables, in compliance with LEED requirements, the criteria from Appendix G of ASHRAE

90.1-2004 and 90.1 2007 were applied to the model to create the Baseline Cases.

3.1 Baseline Case - Building Envelope Requirements

The building’s roof and exterior wall have been modeled to match the maximum U-value in the following table.

Window fenestrations have been modeled to have the U-value and Shading Coefficient as shown in Table 3-1.Envelope thermal properties requirement per CA title 24 have also been provided for reference.

Table 3-1: Building Envelope Requirements for Climate Zone 3C

Opaque Elements

Non - Residential

Assembly Maximum U-value Insulation Min. R-value

ASHRAE

90.1-2007

ASHRAE

90.1-2004

CA Title 24

ASHRAE

90.1-2007

ASHRAE

90.1-2004

CA Title 24

Roofs

Ins above Deck U-0.048 U-0.063 U-0.034 R-20.0 c.i. R-15.0 c.i. R-19.0

Walls, Above Grade

Steel Framed U-0.084 U-0.124 U-0.082

R-13.0+R-

3.8 c.i.

R-13.0

R-8 c.i. or

R-13+R-2 c.i.

Walls, Below Grade

Below-Grade Wall

C-1.140 C-1.140 C-1.140 NR NR NR

Floors

Steel-joist U-0.052 U-0.052 U-0.071 R-19.0 R-19.0 R-19.0

Slab-On-Grade

Floors

Unheated

F-0.730 F-0.730 F-0.730 NR NR NR

Opaque Doors

Swinging U-0.700 U-0.700 U-0.700

Fenestration

Assembly Maximum U-value Assembly Maximum SHGC

ASHRAE

90.1-2007

ASHRAE

90.1-2004

CA Title 24

ASHRAE

90.1-2007

ASHRAE

90.1-2004

CA Title 24

Vertical Glazing

Metal framing

U-0.60

(curtainwall)

U-0.90

(entrance door)

U-0.65 (all others)

Ufixed-0.57

Uoper-0.67

(30.1-40.0% of Wall)

Ufixed-0.36

Uoper-0.46

U-0.41

(curtain wall)

U-0.45

(glazed door)

SHGC-0.25

SHGCall-0.25

SHGCnorth-

0.39

SHGCfixed-

0.36

SHGCoper-

0.46

SHGCcurtain-

0.41

SHGCdoor-

0.45

3.2 Baseline Case – Water Heating Equipment Requirements

ASHRAE Standard 90.1 recommends hot water heaters with different sources having different efficiencies. All water heating equipment, hot-water supply boilers used solely for heating potable water, pool heaters, and hot-water storage tanks have met the criteria listed in Table 7.8 of ASHRAE 90.1-2007 and ASHRAE 90.1-2004. California Building

Energy Efficiency Standards’ requirement for equipment listed in Table 110.2 have also been checked to validate the conformance.

3.3 Baseline Case – Interior and Exterior Lighting Controls

ASHRAE 90.1 – 2007 and 90.1-2004 mandates that buildings larger than 5,000 ft2 shall be controlled with an automatic control device to shut off building lighting in all spaces, and occupancy sensors can be utilized to turn off a light within 30 minutes after an occupant leaves a space. Exterior lighting should be controlled by an astronomical time switch, required by ASHRAE 90.1-2004, and required by ASHRAE 90.1-2007, controlled in one of two ways: (1) Either through the use of a photo sensor which senses the amount of daylight and turns on or off the exterior lighting accordingly, or (2) through the use of an astronomical time switch which shuts off the exterior lighting at certain designated, predetermined times. California Building Energy Efficiency Standards’ requirements for interior and exterior lighting, and lighting control devices have also been checked to validate the conformance.

3.4 Baseline Case – Lighting Power Density Requirements

The lighting density requirements specified in Table 3-2 provide figures that have been used to model the lighting design for the Baseline Case in compliance with the requirements of ASHRAE 90.1-2007. Prescriptive requirement for lighting per CA title 24 have also been provided for reference

Table 3-2: Lighting Power Densities from Table 9.6.1, ASHRAE 90.1-2007, ASHRAE 90.1-2004

Space Type

Lighting Power Density

(ASHRAE 90.1-2004)

(W/ft2)

Lighting Power Density

(ASHRAE 90.1-2007)

(W/ft2)

Lighting Power Density

(CA Title 24-2016)

(W/ft2)

Office 1.1 1.1 0.75(>250sf), 1.0(<=250sf)

Conference 1.3 1.3 1.2

Lobby 1.1 1.1 0.95

Lounge 1.2 1.2 0.9

Food preparation 1.2 1.2 1.2

Lab 1.4 1.4 1.4

Restroom 0.9 0.9 0.6

Corridor 0.5 0.5 0.6

Stairs 0.6 0.6 0.6

Storage 0.8 0.8 0.6

Electricity/Mechanical 1.5 1.5 0.55

Library 1.2 1.2 1.1

Classroom 1.4 1.4 1.2

3.5 Baseline Case – HVAC System Type

HVAC systems in the baseline building designs per ASHRAE 90.1-2004 and ASHRAE 90.1-2007 have been modeled based on usage, number of floors, conditioned floor area, and heating source as specified in Table 3-3 and Table 3-4

Table 3-3: Baseline HVAC System Types from Table G3.1.1A, ASHRAE 90.1-2004

Building Type Fossil Fuel, Fossil/Electric Hybrid, and Purchased Heat Electric and Other

Residential System 1 – PTAC System 2 – PTHP

Non-residential and 3 Floors or Less and < 75,000 ft2.

System 3 – PSZ-AC System 4 – PSZ-HP

Non-residential and 4 or 5 Floors and

< 75,000 ft2 or 5 Floors or Less and

75,000 ft2 to 150,000 ft2.

System 5 – Packaged VAV with

Reheat

System 6 – Packaged VAV with PFP

Boxes

Non-residential and More than 5 floors or > 150,000 ft2.

System 7 – VAV with Reheat System 8 – VAV with PFP Boxes

Table 3-4: Baseline HVAC System Types from Table G3.1.1A, ASHRAE 90.1-2007

Building Type Fossil Fuel, Fossil/Electric Hybrid, and Purchased Heat Electric and Other

Residential System 1 – PTAC System 2 – PTHP

Non-residential and 3 Floors or Less and < 25,000 ft2.

System 3 – PSZ-AC System 4 – PSZ-HP

Non-residential and 4 or 5 Floors and

< 25,000 ft2 or 5 Floors or Less and

25,000 ft2 to 150,000 ft2.

System 5 – Packaged VAV with

Reheat

System 6 – Packaged VAV with PFP

Boxes

Non-residential and More than 5 floors or > 150,000 ft2.

System 7 – VAV with Reheat System 8 – VAV with PFP Boxes

4. MODELING INPUTS

The following table lists some of the main inputs used for modeling the baseline, per AHRAE 90.1-2007 and ASHRAE

90.1-2004, and proposed cases, based on actual design. Inputs for both proposed and ASHRAE 90.1-2007 baseline are among the same between east and west wings. Assumptions and default values are used only where noted. Prescriptive requirement per CA title 24 have also been provided for reference

Table 4-1: Energy Model Inputs for the Baseline and Proposed Cases, and CA Title -24 Requirement

Inputs Baseline

(ASHRAE 90.1-2004)

Baseline

(ASHRAE 90.1-2007)

CA Title 24-2016 2017 Design

Climate data

Location Salinas California Salinas California Salinas California Salinas California

Climate Zone ASHRAE 3C ASHRAE 3C California Climate

Zone 3

ASHRAE 3C

Latitude 36.67°N 36.67°N 36.7°N 36.67°N

Longitude 121.6°W 121.6°W 121.6°W 121.6°W

Heating Degree

Days 2964 (base 65 °F) 2964 (base 65 °F) NA 2964 (base 65 °F)

Cooling Degree

Days 2951 (base 50 °F) 2951 (base 50 °F) NA 2951 (base 50 °F)

Heating Design

Temp 33°F 33°F 34°F 33°F

Cooling Design

Dry-bulb

78°F 78°F 79°F 78°F

Cooling Design

Wet-bulb 62°F 62°F 62°F 62°F

Building Details

Type Laboratory Laboratory Laboratory Laboratory

Conditioned Area

(ft2)

63,661 63,661 63,661 63,661

Above Grade

Stories 3 3 3 3

Envelope

Exterior wall U-value

0.124 0.084 0.082 0.042

Roof U-value 0.063 0.048 0.034 0.024

Swinging Door

U-value

0.70 0.70 0.70 0.70

Window Shading

Coefficient (SC)

SCAll: 0.29

SCNorth: 0.45 SCAll: 0.29

SCfixed: 0.41

SCoper: 0.52

SCCurtain: 0.47

SCNorth: 0.52

Glass Type 12 0.31

Glass Type

12A* 0.30

Glass Type 13 0.30

Window U-Value U- 0.57 ( Fixed)

U- 0.67 ( Operable)

Metal framing

U-0.60 (curtainwall)

U-0.90 (entrance door)

U-0.65 (all others)

U-0.36( Fixed)

U-0.46( Operable)

U-0.41 (curtain wall)

U-0.45 (glazed door)

Glass Type 12 0.29

Glass Type

12A 0.29

Glass Type 13 0.29

Window Visible

Transmittance Min 0.28 Min 0.57 Min 0.17 - Min 0.46 Min 0.64

*HDR please confirm the U-value for Glass type 12A (curtain wall) take both glass and frame thermal character into consideration

Inputs Baseline

(ASHRAE 90.1-2004)

Baseline

(ASHRAE 90.1-2007)

CA Title 24-2016 2017 Design

Window-to-wall area ratio

North 43.5% 43.5% 43.5% 43.5%

North-East 31.8% 31.8% 31.8% 31.8%

East 4.4% 4.4% 4.4% 4.4%

South-East 50.4% 50.4% 50.4% 50.4%

South 43.8% 43.8% 43.8% 43.8%

South-West 29.7% 29.7% 29.7% 29.7%

West 26.4% 26.4% 26.4% 26.4%

Building Average 36.7% 36.7% 36.7% 36.7%

Occupancy

Average

Area/Person As designed As designed As designed As designed

Sensible Heat

Gain per Person 225 – 1090 Btu/h 225 – 1090 Btu/h 225 – 1090 Btu/h 225 – 1090 Btu/h

Latent Heat Gain per Person 105 – 710 Btu/h 105 – 710 Btu/h 105 – 710 Btu/h 105 – 710 Btu/h

Lighting

W/ft2 Bldg. Avg. – 0.94

W/ft2

Bldg. Avg. – 0.94

W/ft2

NA

Bldg. Avg. – 0.69

W/ft2

Miscellaneous Equipment

W/ft2 Bldg. Avg. – 2.87

W/ft2

Bldg. Avg. – 2.87

W/ft2

NA

Bldg. Avg. – 2.87

W/ft2

Zones

Minimum OA

Flow per Person

ASHRAE 62.1/IMC

ASHRAE 62.1/IMC

CA Title-24

Section 120.1

ASHRAE 62.1/IMC

Heating &

Cooling Set-points

Heating: 70°F

Cooling: 76°F

Heating: 70°F

Cooling: 76°F

Heating: 70°F

Cooling: 75°F

Heating: 70°F

Cooling: 76°F

HVAC System Type

System System–3 PSZ-AC System -5 PVAV with reheat VAV with reheat VAV with reheat

Cooling Type DX Coils DX Coils Air Cooled Chiller Air Cooled Chiller

Cooling

Efficiency

EER 9.3-9.5 EER 9.8 – EER 11 EER 10.1 EER 11.16

Heating Type Fossil Fuel Furnace Hot Water Hot Water Hot Water

Heating

Efficiency

Et 80% Boilers at 80% efficiency

82% AFUE Boilers at 96.2% efficiency

System Fan

Power

0.729-1.625 Watt/CFM 0.641-1.132

Watt/CFM

1.25 Watt/CFM 0.747-0.974

Watt/CFM

Motor Efficiency 91%-92.4% 91%-92.4% 92.4%-93.6% 93%-93.6%

Domestic Water

Fuel Type Natural Gas Natural Gas Natural Gas Natural Gas

Efficiency 80% 80% 80% 80%

Hot Water

Temperature 135 °F 135 °F 135 °F 135 °F

5. BASELINE CASE RESULTS

The baseline building design has been modeled with the same number of floors and identical conditioned floor area as the proposed design. Equivalent dimensions have been assumed for each exterior envelope component type as in the proposed design. The baseline energy model also fulfills all the criteria listed in Section 3 of this report and the

Appendix G of ASHRAE Standard 90.1-2007. As per Table 3-3 of this report, the Baseline HVAC system for USDA

ARTC building is System 5 – Package VAV with reheat, with direct exchange coils for cooling and hot water for heating.

As per Table G3.1, Section 5 of ASHRAE 90.1-2007, the baseline building performance is generated by simulating the building with its actual orientation and again after rotating the entire building 90, 180, and 270 degrees, then averaging the results.

Table 5-1: Baseline (90.1-2004) Case - Energy Consumption by End-Use (MBtu)

Baseline Case Lights Misc. Eqp. Heating Cooling Pumps Fans DHW

Actual 710.2 2921.0 1103.0 364.8 47.9 2444.0 169.8

90° 710.2 2921.0 1066.0 311.4 47.9 2346.0 169.7

180° 710.2 2921.0 1098.0 348.4 47.9 2383.0 169.7

270° 710.2 2921.0 1108.0 319.5 48.0 2348.0 170.0

Avg. 710.2 2921.0 1093.8 336.0 47.9 2380.3 169.8

Figure 5-1: Baseline Energy Consumption by End-Use

Lighting 9%

Misc Equip 38%

Space Heating 14%

Space Cooling 5%

Pumps & Aux 1%

Vent Fans 31%

DHW

2%

Baseline Energy Consumption by End-Use

Table 5-2: East Wing Baseline (90.1-2007) Case - Energy Consumption by End-Use (MBtu)

Baseline Case Lights Misc. Eqp. Heating Cooling Pumps Fans DHW

Actual 383.9 1333.0 779.6 165.1 74.7 631.2 169.7

90° 383.9 1333.0 733.3 158.0 70.3 620.2 169.5

180° 383.9 1333.0 750.8 168.7 73.5 630.9 169.6

270° 383.9 1333.0 787.9 151.5 73.5 627.0 169.9

Avg. 383.9 1333.0 762.9 160.8 73.0 627.3 169.7

Figure 5-2: Baseline Energy Consumption by End-Use

11%

Misc Equip 38%

Space Heating 22%

Space Cooling 4%

Pumps & Aux 2%

Vent Fans 18%

DHW

5%

Table 5-3: West Wing Baseline (90.1-2007) Case - Energy Consumption by End-Use (MBtu)

Baseline Case Lights Misc. Eqp. Heating Cooling Pumps Fans DHW

Actual 326.3 1588.0 529.4 261.2 72.5 619.8 170.8

90° 326.3 1588.0 564.5 251.2 70.0 618.2 170.6

180° 326.3 1588.0 516.7 255.6 67.9…