Potomac Yard Land Bay E Arlington, Virginia Drew Heilman - PowerPoint PPT Presentation

Potomac Yard Land Bay E Arlington, Virginia Drew Heilman │ Construction Management │ April 12, 2010

Potomac Yard Land Bay E Arlington, Virginia Presentation Outline • Project Overview • Implementation of Solyndra PV System (Electrical Breadth) • Implementation of Curtain Wall System (Mechanical Breadth) • Implementation of Chilled Beams (Critical Industry Issue) • Conclusions and Recommendations • Acknowledgements and Questions Drew Heilman │ Construction Management │ April 12, 2010

Potomac Yard Land Bay E Arlington, Virginia Project Overview: Presentation Outline • Two Tower Office Building with Underground Parking • 9-Story 370,000 S.F. Office Space • Project Overview • 3 P-Levels – 235,000 S.F., 600 parking spaces • Implementation of Solyndra PV System (Electrical Breadth) • Cost: $75 million Negotiated GMP • Implementation of Curtain Wall System (Mechanical Breadth) • Duration: 20 months, 1/2/08 - 9/30/09 • Implementation of Chilled Beams (Critical Industry Issue) • Design-Bid-Build • Conclusions and Recommendations • LEED Gold • Acknowledgements and Questions • White TPO Roof • Two Building Facades • Cast-In-Place Concrete Structure • Forced air VAV mechanical system Drew Heilman │ Construction Management │ April 12, 2010

Potomac Yard Land Bay E Arlington, Virginia Presentation Outline Location: • Project Overview • Arlington, VA • Implementation of Solyndra PV System (Electrical Breadth) • Regan National Airport • Implementation of Curtain Wall System (Mechanical Breadth) • US Rte. 1 • Implementation of Chilled Beams (Critical Industry Issue) • George Washington Memorial • Conclusions and Recommendations Parkway • Acknowledgements and Questions Drew Heilman │ Construction Management │ April 12, 2010

Potomac Yard Land Bay E Arlington, Virginia Owner: Meridian Group President & CEO: James Daivis Presentation Outline General Contractor: James G. • Project Overview Davis Construction Vice President: James Dugan • Implementation of Solyndra PV System (Electrical Breadth) • Implementation of Curtain Wall System (Mechanical Breadth) Architect: Davis, Carter, Scott • Implementation of Chilled Beams (Critical Industry Issue) LTD. Sr. Project Sr. Layout Project Manager: Ben Engineer: Mike Superintendent: Apfellbaum O'Neil Jim Keglovich • Conclusions and Recommendations MEP Engineer: Allen & Shariff • Acknowledgements and Questions Corporation Project Manager: Project Manager: Superintendent: Meghan Callahan Scott Rhoades Fred Dandeneau Glazing: TSI/ Exterior Wall Systems, Inc. APM: Robert APM: Steve Assistant Super.: Forbes Ghent Andrew Fisher Drew Heilman │ Construction Management │ April 12, 2010

Potomac Yard Land Bay E Arlington, Virginia Purpose for Analyses Presentation Outline • Energy conservation • Project Overview • Solyndra PV System • Implementation of Solyndra PV System (Electrical Breadth) • Chilled Beam Mechanical System • Implementation of Curtain Wall System (Mechanical Breadth) • Implementation of Chilled Beams (Critical Industry Issue) • Schedule Acceleration • Conclusions and Recommendations • Curtain Wall System • Acknowledgements and Questions Drew Heilman │ Construction Management │ April 12, 2010

Potomac Yard Land Bay E Arlington, Virginia Opportunity • Need for energy conservation Presentation Outline • Over 50% of US energy consumption in commercial buildings • Project Overview • Unusable rooftop area • Implementation of Solyndra PV System (Electrical Breadth) • Implement a solar collection system • Implementation of Curtain Wall System (Mechanical Breadth) • Solyndra PV System • Implementation of Chilled Beams (Critical Industry Issue) • Great for application with existing white TPO roof • Conclusions and Recommendations Goal • Determine advantages • Acknowledgements and Questions • Reduce building’s energy consumption • Determine savings and payback Drew Heilman │ Construction Management │ April 12, 2010

Potomac Yard Land Bay E Arlington, Virginia Solyndra System • Founded in 2005 in Fremont, California Presentation Outline • State of the art highly automated production • Project Overview • Reliable hermetic seal on ends of each module • Implementation of Solyndra PV System (Electrical Breadth) • Great application on cool roofs • Implementation of Curtain Wall System (Mechanical Breadth) • Absorbs energy from 360 degrees • Implementation of Chilled Beams (Critical Industry Issue) • Direct • Diffuse • Conclusions and Recommendations • Reflected • Acknowledgements and Questions • Can produce 99% of output regardless of orientation when used with highly reflective roof Drew Heilman │ Construction Management │ April 12, 2010

Potomac Yard Land Bay E Arlington, Virginia Solyndra Advantages • Flat installation, higher panel placement • Lightweight design, 3lb/ft^2 Presentation Outline • No roof penetrations, self ballasted • Project Overview • 25-year power warranty • Implementation of Solyndra PV System (Electrical Breadth) • Superior wind performance, tested and certified for 130 mph • Implementation of Curtain Wall System (Mechanical Breadth) • 3x faster installation • Implementation of Chilled Beams (Critical Industry Issue) • 50% reduction in installation cost • Conclusions and Recommendations • 30% Investment Tax Credit (ITC) when applied on a cool roof • Acknowledgements and Questions • Installation labor • Reflective roof material • Fasteners and adhesive agents • Insulation • Supporting Materials Drew Heilman │ Construction Management │ April 12, 2010

Potomac Yard Land Bay E Arlington, Virginia Application • Allow for two feet maintenance walkways around panels Presentation Outline • Mechanical installation • Project Overview • Connect mounting hardware to panel • Implementation of Solyndra PV System (Electrical Breadth) • Transport panels to location • Implementation of Curtain Wall System (Mechanical Breadth) • Plug in DC connectors and grounding cable • Implementation of Chilled Beams (Critical Industry Issue) • Install lateral clips to connect panels • Conclusions and Recommendations • Place ballasting material on mounting hardware • Five qualified workers two 8-hour days • Acknowledgements and Questions • Electrical installation • Run wiring from panels to inverter • Install inverter • Two electricians 5-10 days to complete Drew Heilman │ Construction Management │ April 12, 2010

Potomac Yard Land Bay E Arlington, Virginia Energy Consumption (Electrical Breadth) • Mechanical Equipment Presentation Outline • 745.7 watts = 1HP • Project Overview • 261 work-days in 2010 • Implementation of Solyndra PV System (Electrical Breadth) • 16 hour/day operation • Implementation of Curtain Wall System (Mechanical Breadth) • Average energy cost Balt./Wash. 2009: $.137/kWh • Implementation of Chilled Beams (Critical Industry Issue) • Lighting Load • Conclusions and Recommendations • Lighting Power Density, ASHRAE 90.1 • LPD is an estimate of W/ft^2 • Acknowledgements and Questions • 261 work-days in 2010 • 10 hour/day operation • Average energy cost Balt./Wash. 2009: $.137/kWh Drew Heilman │ Construction Management │ April 12, 2010

Potomac Yard Land Bay E Arlington, Virginia Energy Consumption (Electrical Breadth) • Receptacle Load Presentation Outline • 1VA = 1Watt • Project Overview • NEC 2008 Table 20.44 Article 220: Branch Circuit-Feeder • Implementation of Solyndra PV System (Electrical Breadth) • 1 st 10kVA = 100% • Implementation of Curtain Wall System (Mechanical Breadth) • After 10kVA = 50% • Implementation of Chilled Beams (Critical Industry Issue) • 261 work-days in 2010 • Conclusions and Recommendations • 10 hour/day operation • Average energy cost Balt./Wash. 2009: $.137/kWh • Acknowledgements and Questions Drew Heilman │ Construction Management │ April 12, 2010

Potomac Yard Land Bay E Arlington, Virginia Energy Production (Electrical Breadth) • Solyndra Panels (1030) Presentation Outline • GAISMA Insolation • Project Overview • Implementation of Solyndra PV System (Electrical Breadth) • Implementation of Curtain Wall System (Mechanical Breadth) • Implementation of Chilled Beams (Critical Industry Issue) • Conclusions and Recommendations • Acknowledgements and Questions Drew Heilman │ Construction Management │ April 12, 2010

Potomac Yard Land Bay E Arlington, Virginia System Cost • $1,400 per panel Presentation Outline • 1,030 panels implemented • Project Overview • $1,442,00 total system cost • Implementation of Solyndra PV System (Electrical Breadth) Energy and Cost Savings • Implementation of Curtain Wall System (Mechanical Breadth) • 276.7 kWh/panel • Implementation of Chilled Beams (Critical Industry Issue) • 282,112 kWh total • Conclusions and Recommendations • 1.38 % energy savings per year • $38,649.38 energy cost savings during first year • Acknowledgements and Questions Drew Heilman │ Construction Management │ April 12, 2010