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Sustainability Case Study Reducing Operating Costs with Low Cost Improvements . Transwestern Sustainability Services Al Skodowski. Internal goals -mandates starting to drive decisions Cost reduction Market Distinction Legislation & Codes CO2 – Water Issues Green Leases

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sustainability case study reducing operating costs with low cost improvements

Sustainability Case StudyReducing Operating Costs with Low Cost Improvements

Transwestern Sustainability Services

Al Skodowski

trends in sustainability

Internal goals -mandates starting to drive decisions

Cost reduction

Market Distinction

Legislation & Codes

CO2 – Water Issues

Green Leases

BOMA; Green Office Guide; etc.

Chief Sustainability Officers

Performance Contracting

Trends in Sustainability
slide3

Transwestern Sustainability Services

  • Independent group within Transwestern
  • Focused on LEED certification of existing buildings
  • Skill sets are built around communicating with building managers and building engineers to provide and gather operational information and adopt green Standard Operating Procedure\'s
the projects
The Projects

Average Cost for Silver = $0.12 - $0.15 per sqft

Average Cost for Gold = $0.15 - $0.23 per sqft

slide5

Where do you start?

NOT LEED

  • Start with EPA Energy Star Portfolio Manager
    • Easily identify how well a building or portfolio is performing compared to same store
    • Qualify how well a retrofit has performed versus designed savings estimate
    • Starting point for any USGBC – LEED for Existing Building Operations and Maintenance EB O & M) certification (now worth up to 15 points towards the 34 needed for EB certification

READY…SET…GREEN: Tenant-focused sustainability program offered nationwide at Transwestern managed properties

GREEN FACT: ENERGY STAR labeled air conditioning units use 20-40% less energy than standard systems. If all new homes were installed with ENERGY STAR units, we could save $100 million annually.

energy star basics

249 kBtu/ft2-yr

75 Hours/week

20

249 kBtu/ft2-yr

55 Hours/week

15

Highest

Building Energy Use

Lowest

Energy Star Basics

Number of Buildings

Best

Performers

Worst

Performers

25

75

1

Benchmark

50

100

retro commissioning

100%

“Natural Degradation”

78%

Ongoing Commissioning Advantage

Time

60%

No Controls / Building NC Commissioning

Operational Benchmark

Unsupported degradation

Traditional Preventive Maintenance

Ongoing Commissioning Services

Retro commissioning

Total

Energy Dollars

park place
Park Place
  • Building STATISTICS
    • Energy Star ..Score: 88 (before 72)
    • Annual Water Savings: ..1,318000 Gals/year
    • Recycling Rate: ..of over 70%
    • Water Capture System net Storm Sewer Savings of ~$38,000 annually
    • Emissions Savings Upon Certification CO2: ..2,222,485 Pounds
    • Irrigation system uses no potable water
    • Total cost of $1,450,000
      • Green Roof ~ $600,000
  • Lease deal 11.5 years at $45.00
summary of facilities
Summary of Facilities

2 million square feet

* Most recent score

silver certification
Silver Certification
  • SERVICES PROVIDED
  • Operational changes - New “green” cleaning supplies, building recycling program, integrated pest management, and improve water efficiency.
  • Energy Management System

Annual Savings $24,000

$0.18 sqft Reduction

Investment ~$35,000

silver certification11
Silver Certification
  • Motion Sensor installation
  • Investment: $58,057
  • Return: $9,842 annually
  • Payback: 5.9 years
  • Water Treatment
  • Investment: $52,800
  • Return: $13,720 annually
  • Payback: 3.8 years
  • Air Balancing
  • Investment: $6,000
  • Return: $11,700 annually
  • Payback: 6.1 months
  • Commodes – Reduced Flow
  • Investment: $30,000
  • Return: $13,400 annually
  • Payback: 2.24 years
  • Faucet Aerators
  • Investment: $215.00
  • Return: $3,935 annually
  • Payback: 14.2 days
  • Variable Frequency Drives
  • Outside Air Fan VFDs
  • Investment: $50,000
  • Return: $17,482 annually
  • Payback: 2.86 years
  • Lighting and Lighting Control
  • Investment:$15,000
  • Return: $40,000 annually
  • Payback: 4.5 months

Investment ~$210,000

Annual Return ~ $103,000

silver certification12
Silver Certification

Operating Expense Comparison

slide13

Case Study: 1800 West Loop South

Utility Performance Evaluation

  • Significant increase in occupancy beginning Summer 2008
  • Utility rate increase in Summer 2008
  • 23% Decrease in consumption per occupied square foot Sep/Oct 2008 vs. 2007
  • Avoided costs of $38,000

Cost/KWh: $0.12

Cost/KWh: $0.15

questions
Questions?

Allan Skodowski

Sr. Vice President & Managing Director

Transwestern Sustainability Services

611 N Broadway, Ste 101

Milwaukee, WI 53202

(414) 937-5023

[email protected]

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