Transcript Town of Fairfield Energy Management 1996-2014

Town of Fairfield Energy
Management
1996-2014
Presented by Edward Boman
April 30, 2014
Town of Fairfield Energy
Management: Electricity
Since 1996 Fairfield has achieved the following
in the 45 buildings it manages:
• 39% decrease in electricity
purchased
•94% reduction in fuel oil use
Total energy expenditures did not decrease:
• 2.5% increase in total energy
expenditures
Town of Fairfield Energy
Management: Electricity
• The Town has reduced building electric
consumption in 12 larger buildings, from
3,460,000kwh to 2,178,000kwh, by 37% in
2012-2013.
• That reduction of 1,282,000kwh translates
into $192,000 avoided expenditures this year.
Town of Fairfield Energy
Management: Electricity
• Of the other 33 buildings, there was a savings
of 308,000kwh and $48,000.
• In summary, Fairfield cut 1,590,000kwh of use,
a 39%, reduction and saved $238,000
Town of Fairfield Energy
Management: Electricity
• However, Fairfield added substantial new
electric use requirements during this period,
including:
– Desk top computers
– Power to the marina docks
– Three private benefit facilities
– Three air conditioning upgrades
Town of Fairfield Energy
Management: Electricity
• Eleven (11) new buildings were constructed
and two (2) additions, totaling 183,979 square
feet were also added during this time frame.
That is a 58% increase in total building square
footage, taking the total from 314,524 to
498,500
• These changes added $177,000 and
885,000kwh
Town of Fairfield Energy Management:
Electricity
• To summarize :
– Fairfield cut 1,590,000kwh of use, a
39%,reduction and saved $238,000
– The Town added 1,699,000kwh of new use
and $263,000 in new costs
– The price for electricity also rose from
10.9c/kwh to 15.5c/kwh-- by 42%
– Thus Fairfield paid $837,000 for almost the
same amount of power it bought for
$448,000 in 1996
Town of Fairfield Energy
Management: Heat
Fairfield has switched from a
heating fuel dependent Town
to a natural gas or dual fuel
dependent Town
Town of Fairfield Energy
Management: Heat
Heating
Fuel
1995
2013
Cost/ gal
$0.70/gal
$3.10/gal
343%
Total Gals
388,000gal
16,647gal
(371,353) gal
Total Cost
$271,767
$51,605
($220,000)
Town of Fairfield Energy
Management: Heat
Natural Gas
1995
2014
Cost /ccf
$0.90
$1.23
36%
Total ccfs
39,526ccf
228,347
188,821
Total cost
$36,000
$281,000
$245,000
Town of Fairfield Energy
Management: Heat
• The result is a $10,000 savings in the overall
cost of heat
• However, that includes the cost to heat over
180,000sf of new building space
• In does not include the avoided cost of the
purchase of 370,000gal of heating fuel
• After the replacement cost of natural gas is
calculated the avoided cost is over $900,000 in
2014
Town of Fairfield Energy Management:
Get the Facts
• Categorize your buildings by:
1.
2.
3.
4.
5.
6.
KWH use
KW use
Size
Age (30 years or older always need work)
Hours of use
Seasonality
Town of Fairfield Energy Management:
Electricity
• Determine which buildings use the most
electricity and how the electricity is being used
There are four (4) broad categories:
• Lighting –up to 50% of load
• Air conditioning (cooling)—8-23%
• Plug-ins, such as computers, soda
machines, etc –5-20%
• Machinery (e.g.,at the Water Pollution
Control Facility)---up to 55%
Town of Fairfield Energy Management:
Heat
• Wherever possible convert from heating fuel
to natural gas
• Consider solar hot water
• The savings are huge in:
– Dollars
– Air emissions, and
– MMBTUs
Town of Fairfield Energy Management:
Green Power
• 60kw natural gas trigeneration facility is
installed in Police Department
– Total cost paid by AARA grant
– Produces 475,000kwh and
– 16,000ccf avoided natural gas purchase
– $50,000 savings
Town of Fairfield Energy Management:
Green Power
• ZREC program—During the first two years of
the program Fairfield received 10 PV awards
– One large project for 1.0megawatts
– Nine small projects for 850 kw
• We are submitting another large ZREC for
1.0megawatt next month
• Over 20 years the guaranteed savings are over
$3,100,000
Town of Fairfield Energy Management:
Water Pollution Control Facility (WPCF)
• I treat the WPCF as almost separate from the
rest of the Town
• It is responsible over 40% of the electricity the
Town uses
• It must operate 24 hours a day, 365 days a
year
• Environmentally, it produces significant gas
emissions, water discharges and solids all of
which must be treated, using electricity
Town of Fairfield Energy Management:
WPCF
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The goals:
Reduce consumption
Increase the use of Green Energy
Reduce , or at least control costs, and
Minimize environmental negatives
Town of Fairfield Energy Management:
WPCF
• In 1995 Fairfield signed a DEP consent order
for the WPCF
• $35,000,000 upgrade
• 100% Clean Water Fund Loan and Grant
• Hard sell to taxpayers
Town of Fairfield Energy Management:
WPCF
• Received $135,000 incentives from UI Energy
Opportunities
• Installed highest commercially available,
energy efficient equipment
• Installed VFDs wherever possible
• Installed highest power factor equipment
• Result 1,350,000kwh and $210,00 saved
annually
Town of Fairfield Energy Management:
WPCF
• As part of a WPCF upgrade Fairfield
1. Installed a 200kw fuel cell with a 75% grant from
CEF
2. Installed a 32kw photovoltaic system with
another 75% CEF grant
3. Installed 360kw of gas fired microturbines
Town of Fairfield Energy Management:
WPCF
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Produces 2,700,000kwh annually
Savings $400,000 this year
That is a payback of 3.4years
Savings would have been higher, but fuel cell
died after 5 years
• However 2,725,000kwh were added by the
upgrade
Town of Fairfield Energy Management:
WPCF
• Equipment Upgrades-for new technology
• These projects benefit form United
Illuminating’s (UI) Energy Opportunity
Program
• Provides grants and zero interest loans
• Maximum payback of 4 years
Town of Fairfield Energy Management:
WPCF
• Equipment Upgrades-for new technology
• These projects benefit form United
Illuminating’s (UI) Energy Opportunity
Program
• Provides grants and zero interest loans
• Maximum payback of 4 years
Town of Fairfield Energy Management:
WPCF
• VFD upgrades—900,000kwh savings
• LED lights—85,000kwh
• New Fluorescent Lighting Upgrades—
110,000kwh
• Energy “dashboard”—39,000kwh
• Total savings– 1,134,000 kwh
Town of Fairfield Energy Management:
WPCF
We adopted positive preventive maintenance
practices:
– Predictive maintenance
– Laser Alignment
– Thermography
– Vibration Analysis
– Lubrication & Hydraulic flow analysis
– Extends useful life of equipment
Town of Fairfield Energy Management:
WPCF
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Total cost
UI grants
UI zero interest
Loans
WPCF Cost
WPCF savings
Payback ---
$877,000
$284,000
$200,000
$393,000
$176,000/yr.
2.2years
Town of Fairfield Energy Management:
WPCF
• Fairfield is bidding in to the next ZREC
program
• A PV system producing 1,450,000kwh is
proposed for the WPCF
• The Power Purchase Agreement will save
$100,000 in year one
Town of Fairfield Energy Management:
WPCF
• A 100kw combined heat and power plant is
being proposed that will produce about
800,000kwh and save $125,000
• A UI funded energy and process audit is
nearing completion
This will suggest numerous other energy savings
• An “energy dashboard “ is installed that will
measure power consumption by every piece of
equipment to help control costs
Town of Fairfield Energy Management:
The Process
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An energy consultant is critical for success
Must be familiar with UI or CL&P s programs
Must be familiar with State programs
Must be able to research and critique new
technologies
• Must have relationships with the best
contractors for installation
• Fairfield selected Earth Corps Energy Services
Town of Fairfield Energy Management:
The Process
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Choose an energy consultant
Perform energy audits
Create a long-term comprehensive plan
Utilize the CL&P and UI energy savings
programs
• Utilize whatever state or federal grants are
available, especially DEEP and CEFIA
• Seek LREC and ZREC funding
Town of Fairfield Energy Management:
The Process
• Consider performance contracting
– Fairfield carried out a successful $7,000,000
performance contract with JCI over 10 years
– Used municipal bonds because they are cheaper
– Installed dual fuel
– Lighting, HVAC, combined heat and power
– Building controls system
– Automated building managed maintenance plan
– Indoor air quality stressed
– Maintenance staff trained
Town of Fairfield Energy Management:
The Process
• The leaders of your organization will
consistently support the efforts, whether
political, governmental or private sector, and
• Success breeds success.
Town of Fairfield Energy Management:
The Future
• Technology is constantly improving and
becoming more cost effective
• The consultant must constantly analyze the
results and
• Seek funding aid
• Fairfield only pays the consultant if it is
successful in receiving aid for the Town
Town of Fairfield Energy Management:
The Future
• The largest technology improvements
commercially available during the last two
years on an affordable basis include:
1.
2.
3.
4.
5.
LED and new fluorescent lighting
Plug power controls
Wireless formats for controls
Open protocol computer equipment
Ductless heating and cooling equipment
Town of Fairfield Energy Management:
The Future
5. Solar hot water systems, for heat as well as
hot water
6. Computerized, automated controls for
lighting, heating and air cooling on a room
by room basis or machine by machine
basis
Town of Fairfield Energy Management:
Summary
• Fairfield has carried out energy conservation
measures in 18 of its top 20 electric
consumers
• We have installed green power in 13 of these
buildings
• Are planning to finish that list in both
categories over the next 3 years
Town of Fairfield Energy Management:
Summary
• We have installed the wireless building control
system in 5 buildings and are planning to
install it in 5 others
• LED and advanced fluorescent lights are now
in 9 locations
• We have also put solar hot water in 2 of the
buildings and are planning 3 other instalations
Town of Fairfield Energy Management:
The Process
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LESSONS LEARNED
The project leader must assume ownership
The elected officials must buy in early
The building managers must buy in early
Appropriate the necessary funding early
Emphasize that it is a long term, continuous
improvement program
Town of Fairfield Energy Management:
The Process
Your champion must make a logical case : that
energy conservation and the use of green
power :
1. Uses commercial technology
2. Can save the taxpayer money
3. benefits both the environment and public
health
4. while still allowing the private sector a profit,
Town of Fairfield Energy Management:
The Process
• The leaders of your organization will
consistently support the efforts, whether
political, governmental or private sector, and
• Success breeds success.