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United Therapeutics Net Zero HQUnderstanding the costs and procurement challenges and opportunities of ZNEOctober 13, 2016

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AGENDA• Why NZE HQ?• Project Overview• Lessons learned

– Design– Procurement

• Net Zero Premium

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United Therapeutics Mission• The development and commercialization of innovative

products to address the unmet medical needs of patients with chronic and life-threatening diseases.

Location: Silver Spring, MD

Size: 121,000 SF (office/retail)73,000 SF (parking)7 stories

Program: - Office- Retail, Public Space- Parking

Goals:- Net Zero Energy- All Renewables On Site- 75% Reduction in Energy- Landmark Building on East

Coast

4THE UNISPHEREPROJECT OVERVIEW

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Site Challenges5

• Mid-Atlantic Climate• Urban site• Neighboring high rises• Limited opportunities for solar

Energy Generation Becomes Limiting Factor

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STRATEGIES

Building OrientationExternal ShadingDay LightingNatural VentilationEarth LabyrinthEvaporative Cooling

DEVELOPING CRITERIA

Passive

Geo ExchangeEnergy RecoveryDemand ControlAutomated ShadingBuilding AutomationPlug Load MgmtRenewable Energy

Active

PASSIVE VS. ACTIVE STRATEGIES

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PLAN LAYOUT7OPTIMIZED FLOOR PLATE

Central AtriumShallow Floor Plate – Maximize Day Light PenetrationCreate a Hierarchy of Spaces - Mobile EnvironmentShared Common Spaces – PantriesEncourage Stair Travel

ENERGY PRODUCTION - PHOTOVOLTAICS81,000 KW BUILDING INTEGRATED SOLAR

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LIGHTING CONCEPTS9DAY LIGHT MODELING

DAYSIM Model

Dim Artificial Lighting System in Response to Day Light

Fully Addressable System

Glare Analysis

Incorporate into Energy Model

Day Light 100% of Office Spaces

Day Light is Adequate 70 – 80% of Occupied Hours

LIGHTING CONCEPTS10TECHNOLOGY ANALYSIS

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PASSIVE COOLING11NATURAL VENTILATION

BUILDING FORM12PRELIMINARY ATRIUM CONCEPT

Natural Ventilaiton

Passive Heating/Cooling- Earth Labyrinth- Solar Baffles- Water Feature

Thermal Chimney- Stack Effect- “Engine” for Natural

Ventilation

Thermal Pool- Lap Pool- Evaporative Cooling- Heat Rejection Source

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PASSIVE COOLING13NATURAL VENTILATION

Geothermal14

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PASSIVE HEATING & COOLING15EARTH LABYRINTH

WALL DETAIL

HVAC SYSTEM16ENERGY RECOVERY | ACTIVE CHILLED BEAMS

Princeton Theological Seminary – Radiant

Unisphere – Chilled Beams

SERC Sustainable Housing - Geoexchange

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PLUG LOAD MANAGEMENT17EQUIPMENT SELECTION

Systems Integration18

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Procurement Strategies

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• Integrated, automated MEP heavy facility

• Net Zero as a buzzword

• Systems Integration Manager

• Controls direct to CM

BAS Mock Up

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• Accelerates MEP equipment procurement

• Early IT involvement critical

• Controls software design

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Net Zero Premium21

Earth Labyrinth22

Labyrinth 1,455,000.00$ Concrete Labyrinth WallsConcrete - Labyrinth Mat & Perim WallsConcrete - Labyrinth LidAddl Insulation throughoutLabyrinth Steel WaterproofingLabyrinth ExcavationShoring at LabyrinthCaissons at Labyrinth

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Solar Arrays23

Solar Array 5,291,184.00$ Solar Tray framing at RoofSolar panel wallSolar panel supports at garageSolar framesCurtain Wall Solar Panel Supports Photovoltaic Panels

Envelope24

Envelope 2,638,000.00$ Increased insulation propertiesInsulation Values at Metal PanelsPremium for Tripple Pane Low E GlassSemi-rigid Insualtion below slabsOperable windows/louvers for natural ventilation

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Geothermal System25

Geothermal System 582,193.00$

Enhanced HVAC26

Enhanced HVAC 4,440,000.00$ $/SF premium for enhanced MEP systems incl. controlsTesting, Adjusting and Balancing

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Building Automation Integration27

Building Automoation 898,800.00$

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Questions & Discussion

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NET ZERO EXPERTISE29PROJECT TEAM

United Therapeutics, Silver Spring

Core Design Team Design Consultants Owner’s Representatives

Peer Reviewers

EwingCole, PhiladelphiaPlanningArchitectureStructural EngineeringMEP EngineeringFire Protection & Life SafetyLighting DesignEnergy Modeling

MHG, Montgomery VillageSite Civil Engineering

Oculus, Washington DCLandscape Architecture

Atelier Ten, London/NYPassive Design

J&A, Marietta GALow Voltage Design

Ted Wallover, Lancaster PAPool Design

Lerch Bates, Littleton COVertical Transportation

POWER Engineers, Hailey IDPhotovoltaic Analysis

Frener Reifer, Bressanone ITCurtain Wall Design

Stranix Assoc., Vienna VAProject Management

Facility Logix, Fulton MDI/T Coordinator

Transsolar, Stuttgart/NY

Cornerstone, Boxford MA

Façade Group, Philadelphia

Pristine Environment, San Diego  

AtSite, Washington DC

RediCheck, Norfolk VA