energy management for dummies reduced emissions positive cash flow a sustainable activity
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Energy Management for Dummies Reduced Emissions Positive Cash Flow A Sustainable Activity. Dick Pearson, P.E., ASHRAE Fellow. Renewables as an Environmental Solution?. Where Do We Use Energy?. Energy Management is the Quickest, Cheapest, Cleanest Way to Extend World Energy Supplies. - PowerPoint PPT PresentationTRANSCRIPT
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Energy Management for Dummies
Reduced EmissionsPositive Cash Flow
A Sustainable Activity
Dick Pearson, P.E., ASHRAE Fellow
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Renewables as anEnvironmental Solution?
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Where Do We Use Energy?
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Energy Management is the Quickest, Cheapest, Cleanest Way to Extend World Energy Supplies
Energy management can provide 2.5 times the environmental impact of renewable energy
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Global CO2 Levels Exceed 400 ppm
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Energy Management 101 – Example
• Management commitment
• Manual daily meter reading
• Operational changes only
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Energy Management 101
The Building
20-Story Office Building:
• 200,000 ft2
• 5 years old, no energy conservation
• Complex, energy intensive HVAC systems
• High utility bills
• No building automation system
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Energy Management 101
How It Worked
Actions by Facility Manager:
• Reviewed operations ideas with building engineer and design engineer
• Reviewed daily meter data for impact, intuitively adjusting for weather
• Harassed/complimented building engineer daily on performance
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Energy Management 101
How It WorkedActions by Building Engineer• Aligned building schedules with
occupancy times
• Raised cold deck temperature
• Lowered hot deck temperature
• Outside air was introduced only during occupied hours
• Reduced duct pressures
Savings in one year: 33%!
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www.energystar.gov
ENERGY STAR Guidelinesdescribe a
management cycle that helps you with Execution—getting
things done!
The Management Content of Energy Management
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Benchmarking Using ENERGY STAR
www.energystar.gov/benchmark
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Comparative Metrics:The Heart of Benchmarking
Is 60 MPG high or low for this automobile?
Is 90 kBtu/SF/YR high or low for this building?
Fuel Efficiency: MPG
Energy Performance Rating: 1 to 100
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Medical Offices Office Buildings
Hospitals
Warehouses
Dormitories
Supermarkets
Courthouses
K-12 Schools
Banks/Financial Institutions
Hotels
Wastewater Treatment Plants
Retail Stores
ENERGY STAR ScoreEligible Building Types
Houses of Worship
Data Centers
Multifamily Housing
Senior Care Facility 17
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Energy Star Portfolio Manager
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Two Types of Action
• Smarter use of what you have right now (Discretionary Operation)
• Energy Audits and Capital Improvements
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Disincentives for the Building Engineer
• Risk of occupant discomfort
• Risk of equipment failure
• Experimentation can be terrifying
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Incentives for the Building Engineer
• Regular monitoring by the manager
• Managerial encouragement to experiment
• Occasional, brief discomfort is OK
• Teamwork
• Accomplishment – Getting results
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Examples of Success
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Greener Pastures with Energy SavingsEmissions Reduction at Madison Area Technical College
Energy Usage FY 01/02
Usage FY 06/07
Usage FY 10/11
Annual Reduction!
Electricity 23,000,000 kWh
18,000,000 kWh
14,700,000 kWh
8,300,000 kWh
Natural Gas 900,000 therms
645,000 therms
443,000 therms
457,000 therms
EmissionsEmissions
FY 01/02Emissions
FY 06/07Emissions
FY 10/11Annual
Reduction!
Carbon Dioxide
25,000 tons 19,000 tons 15,000 tons 10,000 tons
Sulfur Oxides
58 tons 45 tons 37 tons 21 tons
Nitrogen Oxides
30 tons 23 tons 18 tons 12 tons
Source: Madison College Engineering Manager – Wesley Marquardt – [email protected] 50 state emissions data online calculator, refer to Leonardo Academy:http://www.cleanerandgreener.org/resources/pollutioncalculator.html
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City of Madison Buildings
Reductions 2009-2012
•Energy: • 17.1% Reduction• 26,527,171 kBtu/yr• 17 kBtu/ft2-yr
•GHG Emissions: • 3,371 MT/yr
•Cost Savings: • $309,376/yr
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Downtown ChicagoEnergy Star Building
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Aurora Healthcare SuccessReductions 2009-2012*
8 million ft2
•Energy: • 14.8% Reduction• 351,716,161 kBtu/yr• 45.4 kBtu/ft2-yr
•CO2 Emissions: • 64,669 MT/yr
•Cost Savings: • $2,166,250/yr
•Minimal Capital Expenditures
*Two Hospitals & One Clinic Achieve EnergyStar Award28
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Source: Corporate Realty, Design & Management Institute 30
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Aurora Health Care Equivalent Revenue Using a 4% margin
• 2009 – 2012 Total Energy Savings (weather-normalized)
Total Savings = $8,665,000
• $8,665,000 ÷ 0.04 (margin) =
$216,625,000 equivalent revenue
• $216,625,000 ÷ 4 years =
$54,156,250 EQUIVALENT REVENUE PER YEAR
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Energy Management is the Quickest, Cheapest, Cleanest Way to Extend World Energy Supplies
Energy management can provide 2.5X the environmental impact of renewable energy
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Remember to Monitor!!
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