Transcript Water customer presentation

Benefits of Energy
Management
Smart Water for Smart Cities
Workshop
1:00 PM Tuesday May 20, 2014
Presented by Mark Leinmiller
By end of this session you will know…
1. What Energy Management is
2. How Energy Costs impact
operations
3. First steps in Energy Management
4. Alternative funding for Energy
projects
5. Measurable benefits of Energy
Management
Schneider Electric - Industry – Water – December 2012
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What is Energy Management?
Ideally, it is a
comprehensive,
ongoing program
involving all levels
of W/WW system
employees
targeted at
controlling costs
associated with
energy and
maximizing system
reliability.
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Why is Energy Management Important?
• Paying the bills
• One of largest monthly bills
• What % of your city/county energy
spend goes to W/WW ?
• Dallas, TX @ 50%
• Houston, TX @ 50%
• Clinton, AR @ 65-70%
• Tulsa, OK @ 60%
• Performance Indicator
• Car: MPG
• What if dropped 20%
• Specific Energy (KWH/MG)?
• RWI pump dropped 20%
• Train 1 vs. Train 2
• 15% more efficient. Why?
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2012
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Typical City Energy Usage
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We can’t wait for new technologies
we don’t have to
Efficiency solutions are available now
Schneider Electric | Jeff M. Miller | 2014 MWEA & AWWA-MO Joint Annual Meeting | 10:30 Monday March 31st, 2014
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Plant Profile
• Wastewater Treatment Plant
• 70 MGD avg flow
• 90 MGD design
• Influent BOD5: 142
• Effluent BOD5: 2.4
• No trickling filters
• Nutrient removal
• Average Annual Electrical Spend
• 8.9 cents/KWH
• 1,800 KWH/MG
• $3,979,413
• Potential Annual Savings
• $1.2M @ 30%
See your potential savings:
• http://www.se-eml.com
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2012
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Water: A Workshop
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What is my strategy?
Energy & Sustainability Consulting – Get some help
● Strategic Energy Planning
● Sustainability Roadmaps
● Energy Star/LEED
Assessments
● Energy Market Intelligence
● Energy Rebates & Incentive
Support
● Doing nothing is a also a
strategy
● Have to decide how valuable
● How fits with local culture
Schneider Electric - Industry – Water – December 2012
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How do I buy?
Energy Procurement Services
● Energy Sourcing
● Renewable Asset
Management
● Rate & Tariff Analysis
● Demand Response
Schneider Electric - Industry – Water – December 2012
● Energy Risk
Management
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How do I control?
Power Reliability & Metering
● Metering Design &
Commissioning
● Third-party Systems
Integration
● Remote Energy Monitoring
● Emergency Power Supply
Systems
● Power System Control
● Demand Control
Schneider Electric - Industry – Water – December 2012
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How do I optimize?
Infrastructure & Efficiency Upgrades
● Process Optimization
● Systems Automation &
Integration
● Design/Build Energy
Projects
● Performance Contracting
● Mechanical & HVAC
Retrofits
Schneider Electric - Industry – Water – December 2012
● Renewable Energy
Solutions
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How am I performing?
Measurement & Reporting
● Performance Assurance
● Energy & Carbon Reporting
● Operations &
Maintenance Support
● Sequence of Events
Recording
● Energy Data Analysis
● Cannot manage what you
do not measure
Schneider Electric - Industry – Water – December 2012
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First Steps
in Energy
Management
Schneider Electric - Industry – Water – December 2012
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How do I get started?
• Figure out where you are today
• Get a baseline
• Compare monthly power bills to flows
• May have seasonal variations
• Look at penalties
• Demand charges
• Power factor charges
• Other power quality issues
• Ask for help from trusted advisors
• Consultants
• Vendors
• Put together a long-range plan to get a handle on energy spend and
how to reduce it. And keep it down!
• Energy prices are only going to go up!
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How do I monitor?
• Start with what you already have
• 3 Main Elements
• Monitoring Devices record data
• Power meters
• Motor protection relays
• Circuit breakers with comms
• UPS systems
• Generator systems
• Software to accumulate &
manage data, display information
• Existing SCADA
• Purpose-built software
• Communications interface
• SCADA network, RTUs
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Water: A Workshop
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Build system out further
• Create some basic screens for trending
• Trend usage data
• Send data to historian
• Correlate energy data with
operational data
• Generate benchmarking reports
• As you start seeing the benefits, grow
the system
• More metering means better data
• Specific processes
• Individual pieces of equipment
•Predictive maintenance
• More reliability
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2012
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Adding Power Quality to system
• Energy monitoring
• How much energy consumed
• Basic data (kWH)
• Can be broken down by
process
• Even down to the individual
equipment or motor level
• Can be done with existing
SCADA
• Can use many existing
devices from numerous
manufacturers
• Tie energy consumed to flows
(kWH/MG)
• Compare your plant to
benchmarks (Energy Star)
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• Power monitoring
• Includes energy monitoring
• Adds Power Quality aspects
• Sag, surge, spike, transient
• Waveform capture, analysis
• Advanced features improve
predictive maintenance,
diagnostics, mean-time-torepair,
• Alarming
• Direction detection
• Sequence-of-events
recording (SER)
• Harmonics, resonance
• Specialized PQ devices
required
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Power Monitoring
• Benefits to Operations
• RELIABILITY
• Capture disturbances
before equipment failure
• Recoup costs from
power company for
damages
• Determine, Monitor and
Reduce Energy
Consumption
• Reduce Energy Costs
• Manage Electric
Demand
• Central Command
Center
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Computers &
Process equipment
should ride through
events inside the
“envelope”
Events outside the envelope
are severe enough
to cause misoperation
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Power Monitoring
•Benefits to Engineering
• Capacity planning
• Easy access to data
• On-line documentation
• Increase reliability
• Minimize downtime
• Benefits to Maintenance
• Alarming / Paging
• Automatic Meter Readings
• Generator Testing
• Identify Leaks / Waste
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•
•
•
•
•
Increased safety
Easy access to data
On-line documentation
Increase reliability
Minimize downtime
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Environmental & Safety - Time and Money
●Arc Flash Events
●Optional remote breaker operation
●Enhanced Safety
●Minimize Protective Equipment issues
Schneider Electric - Industry – Water – December 2012
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Which method is safer?
Schneider Electric - Industry – Water – December 2012
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Environmental & Safety
- Save Time and Money
●Minimize Personnel Exposure
● Avoid the hazard of installing temporary portable monitors
● Avoid safety hazards to personnel connecting to energized
equipment
Schneider Electric - Industry – Water – December 2012
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Typical 2 – 5% reduction
Reduce Utility Cost
• Spot energy waste or inefficient users
• Improve efficiency with accurate & timely
data. (kWh/gallon, per shift)
• Drive ‘accountability’ by allocating costs
• Double check the utility bill !
Typical 2 – 5% reduction
Optimize Equipment
• Identify “true” elec. gear capacity
• Maximize equipment life (maybe defer
capital expense)
Additional 2 – 5% reduction
Improve Reliability
• Real Time Alarms can notify of
approaching breaker trip, or
overheating motor, single phase
alarm
• Diagnose power problems to avoid
them next time
3 Part Energy Reduction Approach
Energy Efficiency
Demand Response
Utility
Demand
After
Time
Baseline
Utility
Demand
After
Time
EE
Lowers energy demand by
reducing ongoing energy
use
Schneider Electric - Industry – Water – December 2012
Baseline
Demand Response
Lowers utility energy
demand by shedding loads
during peak
period only, may preserve
grid integrity and/or provide
an economic incentive
Utility
Demand
Before
Energy Use (kW)
Utility
Demand
Before
Energy Use (kW)
Energy Use (kW)
Utility
Demand
Before
Renewables
Utility
Demand
After
Time
Baseline
Renew
Derives some part of energy
need from regenerative or nondepleting resources, thereby
lowering total utility energy
demand
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Potential
Funding
Mechanism
Schneider Electric - Industry – Water – December 2012
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Annual cost of doing nothing
Save or buy?
• You can use the
savings to:
• finance energy
efficiency
projects
• finance
infrastructure
upgrades
Schneider Electric - Industry – Water – December 2012
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Performance Contracting
Here’s How It Works
Example of Your Annual
Energy Budget:
Energy Bill
Energy Efficiency Improvements
Reliability Improvements
1 Current Utility Budget
Equipment Repairs &
Replacements
After performance contracting, the budget remains the same as energy savings
pay for the facility improvements.
Schneider Electric - Industry – Water – December 2012
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What Can We Get Through a Comprehensive
Energy Efficiency Project?
Quick Payback
Long Payback
•Aeration System
Optimization
•Real-time Energy
Monitoring
•Biogas for CHP
•SCADA System
•Optimize Digester
Performance
•VFDs
Cost
Schneider Electric - Industry – Water – December 2012
Savings
Cost
Savings
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Project Management
Performance Contracting
Approach:
One Company Accountability
● General contractor
● Construction manager at risk
● Subcontractor management
Schneider Electric - Industry – Water – December 2012
Bid-Spec Approach with
Traditional Construction:
Multiple Accountabililty Sources
● Client hires general
contractor as project
Energy
manager
Management
● Risky, expensive and time
● Management of
subcontractors
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Engineered Solution
Performance Contracting
Approach:
Bid-Spec Approach with
Traditional Construction:
Focus on Energy Efficient
Operations and Design
● Maintenance of normal
operating parameters
Focus on Exceeding
Operating Paramenters
● Energy efficiency can
compete with operating
Energy
parameters
Management
● Emphasis not on long-term
system performance
● Emphasis on long-term
system performance and cost
factors
● Holistic design that
capitalizes on the interactions
of the ECMs
Schneider Electric - Industry – Water – December 2012
● Piecemealing ECMs
doesn’t create synergy
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Savings: Energy, Chemicals, Labor, Fines
Performance Contracting
Approach:
Guaranteed Energy Savings
Fund Improvements
● Savings are maximized over
time when improvements are
done at once
● Project designed for
performance
● Measurement and verification
of savings
Schneider Electric - Industry – Water – December 2012
Bid-Spec Approach with
Traditional Construction:
Sporatic Savings Can Occur;
Not Guaranteed
● Savings degradation over
Energy
Management
time if performance not
made visible
● Focus is meeting
specifications, not
achieving savings
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Financial Guarantee
Performance Contracting
Approach:
Partner for Performance
● Guarantee ensures a partner
● Vested interest in project
performance
● Accountable for results
Schneider Electric - Industry – Water – December 2012
Bid-Spec Approach with
Traditional Construction:
Bid-Spec; On to Next Project
● Not responsible for
savings being achieved or
Energy
Management
guaranteed
● No vested interest over the
long-term
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Financing & Funding Sources
Schneider Electric’s
PC Approach:
Provide Options and Support
● Municipal-lease financing,
bonds, or cash
● Schneider Electric can help
procure financing packages
● Maximum rebates,
incentives, and additional
funding mechanisms
Schneider Electric - Industry – Water – December 2012
Bid-Spec Approach with
Traditional Construction:
As Capital Funds are Available
● Financing clients’
responsibility
Energy
Management
● Client has responsibility of
researching/applying for
additional funding/grants
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City of Denison Case Study
Denison, TX
Project Cost
$7,943,747
Guaranteed Annual Savings
$217,727
Project Scope
• Improvements to their Aeration
Basin & Aerobic Digester including new fine bubble diffusion
grids
• Replacement of 750 hp of blowers and 400 hp of pumps
• Replacement of 3 old switchgear/MCC’s with Sq D switchgear
• Lighting, EMS, HVAC
Project Enablers
• City Manager (CFO) was a proponent; had previous experience
elsewhere with PC
• Proposed improvements were already known issues
• Budget $ already set aside for some improvements
Schneider Electric - Industry – Water – December 2012
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Example Water ESPC Project
Water Plant – 10MGD – Surface Water
•
Annual Energy Use and O&M Costs = $694,378
Current
1
Energy
Budget
- $694,378
ECMs –
•
Rebuild 3 – 450HP turbine pumps
•
New high efficiency motors and drives on
finished water
•
After PC
$60,305
Upgrade of SCADA system
$90,000
•
Upgrade of filter valve actuators
•
Upgrade of chemical feed
Energy Bill
Energy Efficiency
Improvements
Equipment Repairs &
Replacements
ECM Costs = $2,423,918
Rebates/Grants/Incentives = $270,000
$544,073
Guaranteed Annual Savings = $150,305 – 15 Yr
Contract
Schneider Electric - Industry – Water – December 2012
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Measurable
Benefits
Schneider Electric - Industry – Water – December 2012
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Measurable Benefits of Energy Management
Benefits of Energy
Quantified in dollars other applicable method
Passively, 2-5% of energy bill due to Hawthorne Effect; know
you are watching. Actively using PM, results will vary
Cannot manage what you do not measure.
significantly. DoE white paper showed non-metered projects
Power is approx 1/3 of O&M costs
achieved 70% of estimated savings while monitored projects
achieved 115% of anticipated savings.
Quantify equipment utilization; including
Avoid capital outlays for additional transformers, etc. by
seasonal variations
optimizing use of existing equipment.
Quantify equipment utilization; including
Eliminates the time and expense of manually performing load
seasonal variations
study measurements. Save $1,500-5,000 for each study.
Savings is usually minimal; however, we have found up to
Verify utility billing practices and rates
10% errors. That would equate to over $300,000 annually
for an 80 MGD WWTP.
Provides the necessary data to negotiate Have seen reductions of 47% ($/KWH) in deregulated
better rates with utility
markets
EPA estimates the following savings are available: Drinking
Identify energy consumed by your various
Water: 5-15% from Motors, Drives, Pumping System
processes; this is necessary in order to
Improvements, 10-20% from Process Optimization & Control
optimize them. Recommend power
Strategies. Wastewater: 10-20% from Equipment Upgrades
metering down to the MCC feeder level.
and 10-20% from Process Optimization. However, you have
This can be accomplished using electronic
to monitor these various feeds to determine the impact of the
motor overload relays such as the Tesys-T
improvements. A typical 10 MGD WTP could save more than
with the power expansion module.
$168,000/year
Feeder level power metering facilitates
Utility load shedding varies by area, but can be $15 per kWparticipating in utility load shedding by
month, or approx. $60,000 per year for shedding 1MW.
providing adequate load information.
Schneider
- Industry
WaterCities
– December
2012
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ElectricElectric
– Session
Title – –Smart
for Smart
Water: A Workshop
36
Measurable Benefits of Energy Management
Benefits of Energy
Quantified in dollars other applicable method
Identify energy losses due to harmonic
Harmonics create heat in motors and transformers,
losses. More equipment today than ever
shortening their useful life significantly. They can also create
creates harmonics: Ultraviolet disinfection, vibrations in the motor shaft and other issues such as
Ozone Generation, VFDs
resonance.
Identify contributors to energy penalties
Base rate ($/KWH) can be increased up to 100% and is fixed
related to peak demand charges
for 1-3 years, depending on your contract.
Identify contributors to energy penalties
Utilities charge penalties up to 100% of base rate for PF less
related to poor power factor
than 90, adjusted monthly
Identify contributors to energy penalties
Utilities charge penalty up to 100% of base rate, adjusted
related to high harmonics
monthly
Reduced labor rate (Straight time vs. overtime), reduced
acquisition costs (book price & expedited freight), reduced
downtime (scheduled vs. catastrophic failure), reduced
Identify potential problems prior to failure;
possibility of spillage or being out of compliance (EPA fine of
increase system reliability
$15,000 per day, individual operator loses their license;
Dekalb County had a $50,000 fine for 10MG spill blamed on
equipment failure)
Logs, trends and records events for quick Reduced labor costs, reduced downtime, reduced possibility
troubleshooting
of non-compliance. (10-25% minimum)
Disturbance direction detection can reduce Reduced labor costs, reduced downtime, reduced possibility
mean-time-to-rectify
of non-compliance. (10-25% minimum)
Remote access allows experts to evaluate No travel time or expense, reduced downtime, reduced
issues
possibility of non-compliance, spillage, etc.
Schneider
- Industry
WaterCities
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2012
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for Smart
Water: A Workshop
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Measurable Benefits of Energy Management
Benefits of Energy
Quantified in dollars other applicable method
Eliminates need for manual meter reading, also eliminates
Built-in communications allows for remote,
errors. Savings depends on number of meters and distances
automatic data acquisition
required to travel. See ROI calculator tab.
View system status & reports, do
Reduces number of software licenses required. (Minimum
diagnostics via web browser
$595 per seat)
Allows for basic meter data inclusion in SCADA screens and
Can import power data into existing
in standard reports without purchasing and learning
SCADA systems
additional software. Approx. $3,000 savings (includes cost of
SI creating additional SCADA screens)
Can be reimbursed by utility for damaged equipment only if
Capture and document power problems
you can prove problem came from them. On average, 30% of
(dirty power, transients, sags, swells,
power quality and reliability problems come from outside the
lightning, grounding issues)
end-users' facilities.
Identify excess capacity and balance loads
Early detection and alarming
Protect against loss by making necessary corrections
Implement energy awareness program
Save energy. See Cost Savings tab below.
Analyze usage patterns
Save energy, minimize demand peaks
Manage peak usage
Avoid setting new demand peaks
Power monitors watch & alarm on "out of Save time (60-70% of downtime to identify and find problem,
tolerance" events, send alarms to pager,
only 30-40% to fix it). Maintenance crews dispatched to right
etc.
place knowing what to expect.
Pinpoints root cause of failure. Eliminates trial-and-error
Sequence-of-Events Recording (SER) for method of event reconstruction, which may damage
event reconstruction
equipment by reclosing breakers into faults in order to
localize problem.
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2012
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for Smart
Water: A Workshop
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Measurable Benefits of Energy Management
Benefits of Energy
Quantified in dollars other applicable method
Reduce operational costs. EPA estimates 10-20% energy
Gain business intelligence, benchmarking,
savings is available from process optimization in both water
best practices
and wastewater treatment plants.
Simplified, consolidated reporting and analysis tool. Can be
Can monitor all utilities (Water, Air, Gas,
done in power monitoring software or existing SCADA
Electricity & Steam)
software.
An improper generator test is as bad as not testing at all.
Load them enough for long enough to avoid wet-stacking and
other problems that cost you time and money. Reduces labor
Automated generator testing and
hours and training costs required to test generators properly.
documentation
8 hours per month. Insures generators will work when
needed. Once per week for 1 hour x 2 technicians x
$20/hr/tech x 52 weeks = $2080/year.
Assures that backup capability is ready. Reduces downtime
Monitor standby generators including fuel
due to power outages, thereby reducing possibility of a
supply
critical process failure resulting in a spill, etc.
EPRI study found that the average power problem from an
external source cost industrial users $5,000 per occurrence.
Identify supply side faults
Minimize time-consuming investigation(s) after an event;
share a "digital photograph" of the event with utility company.
System-wide monitoring of plants & pump Tie into existing SCADA network to minimize costs.
stations
Implement PM/PQ software to maximize benefits.
Schneider
- Industry
WaterCities
– December
2012
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– Session
Title – –Smart
for Smart
Water: A Workshop
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Measurable Benefits of Energy Management
Benefits of Energy
Remotely trip breakers and verify that
contacts are open with no voltage on the
bus.
Peak-shave using standby generation
Power quality event reporting for events
that may affect computers and electronics
(control system & SCADA components)
Remote monitoring of UPS status
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Quantified in dollars other applicable method
Reduces personnel exposure to arc fault situations. On
average, 260 people die each year in workplace electrical
accidents; that's 5 per week. The cost is incalculable.
Lawsuits could be in the millions of dollars. Also eliminates
the need to suit up in PPE.
Avoids setting higher demand charges, which can be as
much as 100% of the base rate ($/KWH). There are some
locations in which EPA has limited the use of generators for
this purpose due to emissions.
Reduce unplanned downtime and possible non-compliance
due to electronics failures. EPA fine of $15,000 per incident,
plus possible loss of operator's license.
Provides failure warning, thereby avoiding I&C loss during
power outage. Avoids wastewater spills from loss of status,
loss of control. Can be used on remote pump/lift stations.
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Who Cares?
Operations
Maintenance Engineering
Consultants
Reliability
Fewer EPA fines due
to increased system
uptime. Fewer
surprises.
PQ Event alarming,
Predictive maintenance
UPS status,
Load studies,
Equipment utilization,
Balanced loads
System reliability is
greater than without
PM hardware,
software & training.
System-wide
monitoring of plants &
pump stations
Energy
Efficiency
Reduce operating
costs through
benchmarking and
best practices
Establish baseline
energy data from
various processes.
Benchmark your
improvements.
Take lead role in
showing municipalities
how to reduce their
energy usage and
their carbon footprint
Energy trending,
reporting and
benchmarking done
via SCADA and
Historian
Cost of
Energy
Verify billing, Rate
negotiations, DR,
Demand charges,
Load shedding, PF &
Harmonics penalties,
Analyze usage
patterns. Determine
alternate operating
schedules to minimize
energy costs.
Consultants can help
their customers by
specifying power
monitors be tied into
software systems
Cost of
Repairs
Supply side faults,
Predictive vs. reactive,
Isolate harmonics,
Minimized
Downtime
Problem identification,
Direction detection,
Remote access, SER,
Logs, trends &
waveforms,
Safety
Arc Flash: Remotely
trip breakers, verify no
voltage present
Engineering
Expertise
PowerLogic can
monitor system for
you. Warn of new
demand peaks.
Schneider Electric - Industry – Water – December 2012
Schneider Electric can
augment your
maintenance staff with
PM/PQ experts.
Systems
Integrator
Harmonic analysis:
heating, vibration and
damage to equipment
Increase potential
safety of electrical
systems
Schneider Electric can
augment your
engineering staff with
PM/PQ experts.
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What is the Best Investment of $100,000
in the last 10 years?
Wilshire 5000
S&P 500
US Treasury 5 yr.
Energy Savings
Measures
$0
$75,000
$150,000
$225,000
$300,000
Jan 1997 to Dec 2002
Amounts shown exclude return of initial investment
Schneider Electric | Jeff M. Miller | 2014 MWEA & AWWA-MO Joint Annual Meeting | 10:30 Monday March 31st, 2014
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Summary
We have seen that Energy Management is an effective tool for:
• Improving electrical system reliability
• Reducing the possibility for “stuff in the streets” or boil water
advisories
• Identifying and Reducing energy consumption
• Lowering energy costs
• Lowering maintenance costs
• Verifying utility bills
• Getting reimbursed for supply-side damages
• Improving safety, reducing exposure to arc flash
• Meeting EPA’s desire for energy benchmarking in W/WW
facilities
What is that worth to your organization?
Schneider
- Industry
WaterCities
– December
2012
Schneider
ElectricElectric
– Session
Title – –Smart
for Smart
Water: A Workshop
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Conclusion
1.Energy Management is an ongoing
process, not a one-time event
2. W/WW Energy is one of the biggest
expenses of all municipalities
3.Getting started isn’t as hard as you
might have thought
4. Zero capital Investment options are
available
5. There are very many financial aspects to
Energy Management
Schneider Electric - Industry – Water – December 2012
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Questions?
Mark Leinmiller
Segment Manager
Water Wastewater Competency Center
225 Townpark Drive, Suite 400
Kennesaw, GA 30144
Office: 770.792.4842 | Mobile: 770.329.3878
[email protected]
www.schnedier-electric-water.com
Schneider Electric | Jeff M. Miller | 2014 MWEA & AWWA-MO Joint Annual Meeting | 10:30 Monday March 31st, 2014
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Make the most of
your energy™
http://www.schneider-electric-water.com
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