DPR Phoenix Regional Office - Net Zero Certification · DPR Phoenix Regional Office – Net Zero...

DPR Phoenix Regional Office – Net Zero Certification

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DPR’s Green Vision 1999: Ted van der Linden – Aspect Communications

Headquarters 2001: Member of USGBC 2007: Carbon footprint survey 2003: Sacramento Office LEED Silver 2010: San Diego Office NZE & LEED Platinum 2010: Phoenix Office Tracking to NZE & LEED Platinum 2012: Newport Beach Office Targeting LEED Gold

Reduce Carbon Footprint by 25% per employee by 2015

EPA CLIMATE LEADER COMMITMENT

To be a world leader in High Performance Green Building 1

Create preconstruction methodology that allows our teams to implement Green Building Design and Construction

2

Create the built environment without harming the natural environment 3


site

Transit Overlay District

N

Phoenix Sky Harbor

Airport


• Net Zero Energy • Maximize natural light • Passive cooling • 10 year payback • Bring outdoors inside • Showcase talents DPR culture • “Less officey” • Treat water as a precious resource • Change the marketplace • Security: safe place to work

Project Goals


Early conceptual diagrams showing general approach to building form, shading, day lighting and views.

Early Concepts


Site Plan


Floor Plan


Daylight


View down entry corridor with glass enclosed conference room to the left.

Daylight


CONNECTION WITH THE ENVIRONMENT

DPR’s ‘Lessons Learned’

NATURAL LIGHTING


Solar Chimney & CFD


Passive Hybrid Downdraught Cooling


DPR’s ‘Lessons Learned’

PAPERWEIGHTS DUST


Net Zero Energy

• 78.96 kW-DC PV system • Grid Tied • 326 – 235Wdc Kyocera • 10 degree tilt • 6,980kWh excess

generation


DPR Phoenix Regional Offices

Predicted Energy Use: 138,371 kWh

Lucid Display showing for 2012 – Showing Consumption vs. Production

The Lucid Display shows the kWh’s of Consumption and on-site Production for 2012. This demonstrates a Net Positive production for the DPR project of around 13,250 kWh. Approximately 10% over their energy needs.



Recently implemented a strategy to force upper level warm air down into main open space using big ass fans. The impact is reflected as the difference from Jan-13 to Feb-13. They should be able to do the same in Jan-14, having a significant improvement on heating demand.

The gap between predicted loads and actual loads occurs between ‘seasons’ when the passive hybrid evaporative cooling system, climate controlled windows and fans work in harmony to reduce typical system demands.


• Rehabilitation of a dilapidated 1972 building, using 93.7% of the existing buildings structure

• Day lighting provided via 82 solar tubes in roof reduces operational needs by 70%. Day lighting controls to turn lights off when adequate daylight available

• LED lighting utilized outside • 12 BIG ASS fans help circulate air & improve

occupant comfort thresholds • Shower towers passively cool incoming air

which is drawn naturally through a solar chimney generating 16 tons of effective cooling.

• Kill switch shuts down plug loads every night except refrigerator, fax and emergency lighting

• 250’ of Green screen outside creates a micro-climate for tempering outside air and shading of building spaces, reducing heat gain

• Low flow fixtures with waterless urinals • 42% reduction in water use inside. 72% water

reduction overall. • 44.5% reduction in annual energy use prior to

PV’s • EUI before PV of 28.85 kBtu/sf-yr • 79kW-DC array takes projects EUI to Zero • Covered parking helps reduce heat island • Solar thermal DHW • Within the Discovery triangle • Access to Community Resources • Employee fitness center with shower access • Bike racks for employees • Walking distance to light rail and bus transit

routes • 97% of all wood is FSC

• 32.76% recycled content • 3.35% rapidly renewable content • 12.88% regional content • 78% of waste diverted from landfills • Recycling program • Green cleaning program • Green educational program • Low emitting interior finishes throughout • Improved thermal envelope • High performance glazing where necessary • LUCID dashboard display keeps employees up

to date on energy use

Sustainable Strategies

DPR Phoenix Regional Office - Net Zero Certification · DPR Phoenix Regional Office – Net Zero...

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