Download
sustainability case study reducing operating costs with low cost improvements n.
Skip this Video
Loading SlideShow in 5 Seconds..
Sustainability Case Study Reducing Operating Costs with Low Cost Improvements PowerPoint Presentation
Download Presentation
Sustainability Case Study Reducing Operating Costs with Low Cost Improvements

Sustainability Case Study Reducing Operating Costs with Low Cost Improvements

553 Views Download Presentation
Download Presentation

Sustainability Case Study Reducing Operating Costs with Low Cost Improvements

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. Sustainability Case StudyReducing Operating Costs with Low Cost Improvements Transwestern Sustainability Services Al Skodowski

  2. 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

  3. 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

  4. The Projects Average Cost for Silver = $0.12 - $0.15 per sqft Average Cost for Gold = $0.15 - $0.23 per sqft

  5. 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.

  6. 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

  7. 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

  8. 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

  9. Summary of Facilities 2 million square feet * Most recent score

  10. 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

  11. 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

  12. Silver Certification Operating Expense Comparison

  13. 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

  14. Where to Start - Summary

  15. Questions? Allan Skodowski Sr. Vice President & Managing Director Transwestern Sustainability Services 611 N Broadway, Ste 101 Milwaukee, WI 53202 (414) 937-5023 Allan.skodowski@transwestern.net