Transcript CITY OWNED ENERGY EFFICIENCY - Clean Air Through Energy

Leading by Example
Philip Gates, CEM, CMVP, EIT
Energy Manager
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How to begin?
Municipal Facility
Retrofits
Energy Reporting
Measurement &
Verification
Municipal Energy
Design &
Standards
City-Wide Energy
Codes and Policies
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15,000,000 sqft of building area
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Public Buildings:
By the Numbers
Total facility sites: 657
Owned & operated: 346
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Steam &
chilled
water, $5
Water, $4
Natural gas,
$2
Electricity,
$23
Utility accounts:
249 natural gas
2,125 electric
885 water
4 steam/CHW
Annual Utility Costs:
(in millions)
$34
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500,000
25,000,000
450,000
22,500,000
400,000
7 year
low
20,000,000
17,500,000
15,000,000
350,000
300,000
250,000
12,500,000
200,000
10,000,000
Electricity
7,500,000
-4% vs.
2012
Natural Gas
5,000,000
150,000
100,000
Gas Consumption (CCF)
27,500,000
50,000
2,500,000
Sep 2013
Mar 2013
Sep 2012
Mar 2012
Sep 2011
Mar 2011
Sep 2010
Mar 2010
Sep 2009
Mar 2009
Sep 2008
-
Mar 2008
-
Sep 2007
Electricity Consumption (kWh)
City of San Antonio Energy Consumption
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Projects completed/underway (5 years)
Municipal Retrofits: Impact
Total Projects
398
Total Facility Sites Improved
180
Capital Investment
$36,127,097
Avoided Cost, $/yr
$4,219,509
Rebates Received
$5,427,701
Simple Payback, years
8.7 / 3.1
Electricity Savings, kWh/yr
58,227,372
Natural Gas Savings, CCF/yr
Emissions
Reductions
69,095
tons C02e/yr
24,263
lbs NOx/yr
26,731
lbs VOCs/yr
596
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Retro-Commissioning
Interior Lighting
• Low-$ system tune-ups
• 5 buildings, 3M sqft
• $316K annual savings
• Fluor., LED, control
• Fluor., LED
• Eff. equip. w/ control
• 135 sites
• 108 sites
• 40 buildings
• $1.5M annual savings • $155 annual savings • $154K annual savings
Immed.
PC Energy Mgmnt
• Software solution
• 6,500 devices
• $200K annual savings
1yr
3yr
4yr
Exterior Lighting
5yr
Chillers & DX Units
9yr
25yr
Pool Pump Control
Window Film
LED Street Lighting
• Stop over-circulating
• 24 Public Pools
• $70K annual savings
• Reduce solar heat gain
• 39 buildings, 184Ksqft
• $289K annual savings
• Replace high wattage fixt.
• 25,000 fixtures
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• $, kWh annually
1.
2.
Continuously benchmark facility energy use
Prioritize facilities
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3.
4.
5.
6.
Heavy usage
High public visibility
Conduct energy assessments
Self-manage retrofits, quick payback first
Measure & verify utility savings (avoided cost)
Revolve energy savings and rebates
 Comprehensively retrofit all facilities
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Develop in-house expertise
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Train building operators; preventative maintenance
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Install control systems your staff can operate
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Exercise a robust compliance protocol
 Quality control and field verification is essential
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Benchmark all buildings with significant energy use
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Measure & Verify utility savings (in-house)
 Large portfolio: whole building utility bill analysis, IPMVP Option C
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Follow life-cycle for
capital-intensive upgrades
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Commission or functionally
test every project
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Simple Solutions: Set points,
operating hours, equip. right-sizing
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300
275
Clinic
Entertainment/Culture
250
Fire Station
Library
225
Office
Other
Southeast
Service Center
Westside
YMCA
200
Parking Garage
Police Station
175
Recreation
Social/Meeting
Stormwater
Operations
Semmes
Library
Hamilton
Community North Police
Substation
Center
International
Center
150
125
Emergency
Operations
Public Safety
Technology Center
Parman
Library
Nueva Street
Marina
Fire
Headquarters
Convention
Center
100
National
Averages
by Type
Municipal
Plaza
City Hall
75
50
25
0
1895
1905
1915
1925
1935
1945
1955
1965
Year Built
1975
1985
1995
2005
Low Energy Use
Energy Use Intensity (kBtu/sqft/year)
Alamodome
High Energy Use
Energy Performance of Municipal Facilities by Year Built
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Budget is war: Know thy CFO, budget director, & budget analyst
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Tell the full fiscal impact of your work:
 Reduced energy costs
 Accomplished deferred maintenance projects
 Reduced operation and maintenance costs
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Review bills monthly & know thy rate categories
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Exercise fiscal temperance with savings
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Incur no debt & always be cash-positive
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General
Fund
Seed
Funding
Energy
Efficiency
Fund
Appropriate
Savings &
Rebates
Implement
Retrofits
Quantify
Utility
Savings
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Project Costs
$9,000,000
$8,000,000
$7,000,000
$6,000,000
$5,000,000
$4,000,000
$3,000,000
$2,000,000
$1,000,000
$0
Debt Service
M&V
Profit
Overhead
Project Management
Engineering
Materials & Labor
$7.7M
$3.6M
$6.0M
Self Managed
$0
$108,395
$0
$7,955
$69,520
$214,843
$3,163,645
Performance Contract
$1,722,773
$301,514
$390,813
$703,420
$390,813
$312,640
$3,907,918
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ENERGY STAR Portfolio Manager
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Noesis Energy’s M&V platform
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EVO measurement & verification guidelines
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SECO LoanSTAR revolving loan fund
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SECO QuickCalcs Spreadsheets
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DOE State and Local Energy Efficiency
Action Network (SEE Action)
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DOE eQuest energy model
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Philip Gates, CEM, CMVP, EIT
Energy Manager
(210) 207-1444
[email protected]
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