Federal CourthouseFederal CourthouseChicago, ILChicago, ILLEED Platinum LEED Platinum CandidateCandidateGroup OneGroup One

Michael Barr, Alicia Case, & Sara DewaldMichael Barr, Alicia Case, & Sara Dewald

Project BackgroundProject BackgroundLocation: SE Corner of W. Monroe St. & S. Des Location: SE Corner of W. Monroe St. & S. Des Plaines, Chicago, ILPlaines, Chicago, IL

Ex. Cond: Developed with a park (owned by Ex. Cond: Developed with a park (owned by City of Chicago), surface parking lot, and old City of Chicago), surface parking lot, and old buildingbuilding

Proposed Building:Proposed Building:500,000 ft500,000 ft2 2 building with 5 storiesbuilding with 5 stories100,000 ft100,000 ft22 underground parking lot underground parking lot500 parking spaces needed500 parking spaces needed

Considerations:Considerations:GSA, LEED, and local Chicago sustainability initiativesGSA, LEED, and local Chicago sustainability initiativesBuilding security issuesBuilding security issueslocal weather conditionslocal weather conditions

Project AssumptionsProject Assumptions

Occupancy: 1500 full time occupants, 4500 daily Occupancy: 1500 full time occupants, 4500 daily visitorsvisitors

Project LEED Focus:Project LEED Focus:

SiteSiteEnergyEnergyWaterWater

Sustainable SitesSustainable SitesReducing Heat Island Reducing Heat Island EffectsEffects

Underground Underground parkingparking

Energy savingsEnergy savings

$1070/yr +/-$1070/yr +/-

Rainwater Rainwater harvestingharvesting

900,000+ gal/yr900,000+ gal/yr

67,250 ft2 green 67,250 ft2 green roofroof

$15-20/ft – $15-20/ft – extensiveextensive

Sustainable SitesSustainable SitesReducing Heat Island Reducing Heat Island EffectsEffects

Pervious paving in Pervious paving in plazaplaza

Surface infiltrationSurface infiltration

140”/hr140”/hr

Central downtown Central downtown locationlocation

All modes of All modes of transportation availabletransportation available

Energy and AtmosphereEnergy and Atmosphere Demonstrate 35% Energy Performance Demonstrate 35% Energy Performance ImprovementImprovement 19.0 million kWh 19.0 million kWh 12.4 million kWh 12.4 million kWh $1,166,646 $1,166,646 $758,320 $758,320 Annual Savings $408,326Annual Savings $408,326

Demonstrate 1% On-Site Renewable Demonstrate 1% On-Site Renewable EnergyEnergyWind Turbine – Wind Sail ConceptWind Turbine – Wind Sail Concept 10 – 11 units required10 – 11 units required Can be outfitted with PV SolarCan be outfitted with PV Solar Wind Power Payout (123,713 kWh) Wind Power Payout (123,713 kWh) $371.13 $371.13 Purchase Green-e RECs for 100% Energy Purchase Green-e RECs for 100% Energy Consumption Consumption $37,114 (9.1% Reduction) for 2-years$37,114 (9.1% Reduction) for 2-years

Energy and Atmosphere Enhanced CommissioningEnhanced CommissioningNew Buildings New Buildings $1.16/sq. ft. to 0.4% $1.16/sq. ft. to 0.4%600,000 sq. ft. 600,000 sq. ft. $696,000 to $1.44 million $696,000 to $1.44 million Enhanced Refrigerant ManagementEnhanced Refrigerant ManagementNatural RefrigerantsNatural RefrigerantsFire Suppression w/o HCFCs or HalonsFire Suppression w/o HCFCs or HalonsMeasurement and VerificationMeasurement and VerificationSave up to 10% annually energy costsSave up to 10% annually energy costs1-year post-construction occupancy1-year post-construction occupancyCalibrated Simulation (3-5%)Calibrated Simulation (3-5%)$9 million - $15 million$9 million - $15 million

Water Water EfficiencyEfficiencyConsiderations:Considerations:

Judge Chambers, Juror Areas, Locker Judge Chambers, Juror Areas, Locker Rooms, Urine Testing, & Break Rooms, Urine Testing, & Break RoomsRooms

WC, Urinals, Faucets, Shower heads, WC, Urinals, Faucets, Shower heads, Kitchen faucets, & Hand dryersKitchen faucets, & Hand dryers

Water Reduction Water Reduction •Total savings 41.06%Total savings 41.06%•Fixtures total <$200,000 •Baseline annual cost: $21,306.80•Performance annual cost: $12,558.49

Water Cont.Water Cont.

Water-efficient Water-efficient LandscapingLandscaping•LIDLID•Rain Harvesting: 2 Cisterns, Rain Harvesting: 2 Cisterns, 36.27”36.27”•Native, Tolerant Plants Native, Tolerant Plants

Water InnovationWater Innovation•Greywater ReuseGreywater Reuse•Separation system Separation system •Multimedia sand filter, Residual disinfection, and Multimedia sand filter, Residual disinfection, and Continuous on-line monitoring and controls Continuous on-line monitoring and controls

ConclusioConclusionn• $50K-$100K for $50K-$100K for

53.6% decrease53.6% decrease

• $696,000-$1.44 $696,000-$1.44 million for 1x10million for 1x106 6

kWh/yr savingskWh/yr savings

• $1-1.3 Million for $1-1.3 Million for 912,298.7 gallons 912,298.7 gallons

Project Scorecard SummaryProject Scorecard SummaryCategory Yes Maybe No

Sustainable Sites 24 0 2

Water Efficiency 10 0 0

Energy and Atmosphere 21 0 14

Materials and Resources 8 3 6

Indoor Environmental Quality 14 0 1

Innovation in Design 3 0 0

Regional Priority Credits 4 0 0

Total 84 3 23

Status Platinum

ReferencesReferencesClinton Climate Initiative (CCI). (April 2009). Measurement and verification and the IPMVP. Retrieved from http://www2.presidentsclimatecommitment.org/documents/ccitoolkit/Measurement_and_Verification_and_The_IPMVP.pdfFerguson, B. (Winter 2010). Porus Pavements Q & A. Water Conservation Newsletter. American Society of Landscape Architects. Washington, D.C. FindTheData. (May 2013). Chicago, IL Average Rainfall. Retrieved from http://average-rainfall-cities.findthedata.org/l/86/ChicagoKilbert, C. (2013). Sustainable Construction: Green Building Design and Delivery. Hoboken, N.J.: John Wiley & Sons, Inc. Portland State University. (2013). Impact of a Green Roof [online calculator]. Green Building Research Laboratory. Retrieved from http://greenbuilding.pdx.edu/GR_CALC_v2/savings_v2.phpSisolak, J., and Spataro, K. (March 2011). Toward net zero water: Best management practices for Decentralized sourcing and treatment. Prepared by Cascadia Green Building Council.