Energy Efficiency Program Overview

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• Energy Efficiency Program Overview
• Xcel Energy

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Driver Colorados Energy Needs

Up 57
In the last decade
Up 19
Up 15
Number of Customers
Peak Demand
Electric Use per Customer

• Xcel Energy must meet customers needs
• Manage SUPPLY by obtaining more power
• Manage DEMAND by reducing customers usage

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Xcel Energys Environmental Leadership

• Number 1 wind power provider - Windsource
• Largest green-pricing program in USA
• Industry leading energy efficiency programs
• One of largest photovoltaic systems 8.2 megawatts
• SolarRewards 1,000 customers, 9 megawatts
• Voluntary emissions reductions
• Member of

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Xcel Energy Reduce DEMAND

• Xcel Energy - Efficiency programs
• Double capacity to 694 MW
• Triple annual energy use
• reductions to 2,350 GWh
• (2009-2020)
• Past legislation (2006-2013)
• 320MW demand reduction
• 800GWh use reduction

694 MW is approximately the size of Xcel
Energys largest coal-fired power plant in
Colorado
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How Xcel Energy Helps

• Provides incentive to adopt energy efficient
  technologies
• Rebates provide trade partners a tool to
  influence a customers purchase decision
• Xcel Energy brand name and neutral 3rd party
  endorsement

Results energy savings and quicker paybacks for
the customer
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Xcel Energys Rebate Programs

• Cash rebates up to 50 of the project cost
• For existing facilities or new construction
• For Xcel Energy electric business customer in
  Colorado

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Energy Efficiency Program Descriptions
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Xcel Energy Offers Three Types of Programs

• Prescriptive programs
• Non-prescriptive programs
• Studies/Audits

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Xcel Energy Prescriptive Programs

• Included Programs
• Lighting
• Cooling
• Motors
• Variable Frequency Drives

• Prescriptive Programs
• Predetermined rebate amounts
• and related savings for various
• energy saving technologies
• No pre-approval required
• Qualifying technologies are listed on the rebate
  applications

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Prescriptive Rebates - Lighting

• Lighting
  1.75 - 125.00/fixture
• Energy efficient lighting including T8, super T8,
  T5, high
• bay, photocells, sensors, LED exit signs
• Cooling 10-50/ton plus
  4/ton above std.
• Roof top units, VAV boxes, condensing units,
  chillers,
• split systems, cooling towers, heat pumps and
  PTACs
• Motors
  10-600/motor
• NEMA Premium efficiency motors 1-200hp
• VFD Motors
  30/hp
• Variable frequency drive motors, 1-200hp

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Xcel Energy Non-prescriptive Programs

• Non-prescriptive Rebates
• For equipment and
• conservation efforts not
• covered with the prescriptive
• programs
• Pre-approval required
• Rebate amounts and energy savings may vary
  greatly by project

• Included Programs
• Custom Efficiency
• Energy Management Systems
• Energy Design Assistance

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Non-prescriptive Programs
400/kW

• Custom Efficiency
  200/kW peak demand
• Used for technologies that dont fit in the
  prescriptive programs
• Also used to implement several of the findings in
  the studies
• Energy Management Systems Up to
  400 kW and .0525/kWh
• For the purchase and implementation of automated
  building
• controls that lower the peak demand kW or
  off-peak kWh
• Energy Design Assistance
  100 funding
• Efficiency study and modeling for new buildings,
  additions
• and major renovations

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Xcel Energy Studies/Audits

• Studies/Audits
  
• Xcel Energy funds a portion of
• a study, which may lead to
• identifying energy saving
• opportunities
• Pre-approval required
• Additional rebate opportunities can be realized
  by submitting a prescriptive or custom rebate
  application

• Included Programs
• Compressed Air
• Recommissioning
• Refrigeration Recommissioning
• Energy Analysis
• Lighting Redesign

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Studies/Audits

• Compressed Air 50-99hp 100 funding up
  to 2,500
• 99hp 75
  funding up to 15,000
• Used to evaluate energy loss in 50hp compressed
  air
• systems and provide improvement recommendations

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Studies/Audits
75
20,000

• Recommissioning Up to 50 study cost up to
  15,000
• Up to 200/kW
  or 0.525/kWh for
• 
  implementation
• Evaluate and improve the efficiency of the
  buildings existing mechanical systems and
  controls with low- or no-cost adjustments
• Customized incentives also available based on
  peak kW and/or kWh reductions

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Studies/Audits

• Energy Analysis
• Online study
  Free
• On-site Study
  200-300 (4 hr. study)
• Engineering Assistance Study Up to 50
  funding,
• 
  15,000 max
• Examples include Cooling system replacement,
• refrigeration, space or process heating, or
  custom
• conservation projects
• Study to be performed on an equipment/supplier
• impartial basis

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Studies/Audits

• Lighting Redesign Up to 50 study cost up
  to 15,000
• Up to 400/kW for implementation
• Study to evaluate and recommend proper lighting
  conditions, including anticipated energy savings
• Implementation through this program or
  prescriptive
• Trade Partner must be Lighting Certified (LC) or
• Certified Lighting Efficiency Professional CLEP
  certified
• More information www.ncqlp.org or
  www.aeecenter.org

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Program Overview
Cooling Efficiency
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Cooling Efficiency

• Rebates for purchasing and installing
• energy-efficient air conditioning equipment
• Available for small equipment up to very large
  equipment
• Two level incentive
• Base incentive
• Bonus incentive
• New or existing facilities

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Qualifying Technologies

• PTACs
• Water Source Heat Pumps
• Condensing Units
• Rooftop Units

• Split Systems
• Variable Air Volume Boxes
• Oversized Cooling Towers
• Chillers

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Prescriptive Program Application Process

• Technology
  Min to Qualify
• PTACs 11
  EER
• Base 50/ton, Bonus4/incremental 0.1 EER
• Water Source Heat Pumps 14 EER
• Base 50/ton, Bonus4/incremental 0.1 EER
• Rooftop Units 13.5 SEER, 11- 9.5 EER
• Base 50/ton, Bonus4/incremental 0.1 EER
• Condensing Units 11 EER
• Base 25/ton, Bonus4/incremental 0.1 EER
• Split Systems 14 SEER
• Base 25/ton, Bonus3/incremental 0.1 SEER

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Prescriptive Program Application Process

• Technology Min. to Qualify
• Chillers-Scroll or Rotary Screw .65-.64kW/ton
• Base 10/ton, Bonus 3/incremental 0.01 kW/ton
• Chillers-Centrifugal .65-.56kW/ton
• Base 12/ton, Bonus 3/incremental 0.01 kW/ton
• VAV Boxes
• 200/Box, must replace a CAV system
• Cooling Towers
• 3/nominal tower ton
• Air Cooled Chillers (separate rebate form)
  10 EER
• 8/ton, Bonus 2 incremental 0.01 kW/ton

May 2007
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Sample Rebate Calculation

• Rooftop AC example
• Assume 10 ton rooftop unit, 12 EER
• Minimum Efficiency is 11 EER
• Base rebate 50/ton
• 4/ton for each increment above base
• 10 ton x 50/ton 500
• (12 EER-11 EER)/0.110
• 10 ton x 10 x 4/ton 400
• Total 500 400 900

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Cooling Program Air Cooled Chillers

• Addition of Air Cooled Chillers to program
• Baseline 10 EER when rated at ARI conditions
• Rebates 8/ton and 2/ton per incremental 0.1EER
  above baseline
• Working on revising the centrifugal chiller
  rebate so efficiency is calculated at Colorado
  design conditions instead of ARI.

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Prescriptive Program Application Process

• Determine if equipment qualifies
• Purchase and install equipment
• Complete rebate application
• Customer must sign application
• Submit application with invoice to Xcel Energy
• Date and place of purchase
• Nameplate nominal efficiency
• Manufacturer and model or part number
• Labor Costs to install
• Rebate check sent to customer in 6-8 weeks

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Program Overview

• Motor Efficiency

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Rebate Requirements

• New motors from 1-200 horsepower
• No rewound or repaired motors
• Must meet or exceed National Electrical
  Manufacturers Association (NEMA) Premium motor
  efficiency standards
• ODP or TEFC motors

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Motor Rebate Levels

• Each horsepower has prescribed rebate amount
• Note Motors VFDs gt 200 HP must be submitted
  through the Custom Efficiency program and receive
  preapproval prior to purchase and/or installation

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Motor Rebate Levels
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Motor Rebate Levels
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Variable Frequency Drive (VFD) Rebate
Requirements

• New VFDs only
• Prescriptive rebates for 1-200 horsepower
• At least 4,000 hrs. per year
• Two or more operating points lt 55 loaded, 75 of
  the time
• Automated control system
• Flat rebate of 30/HP

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VFD Rebates Qualifying Equipment

• VFDs included
• HVAC fans
• Pumps
• Cooling towers
• Process equipment
• Industrial fans

• VFDs not included
• Chillers
• Refrigeration compressors
• Air compressors
• Elevators DC to AC

Non-included VFDs may qualify for Custom
Efficiency rebates
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Program Overview
Recommissioning Program
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Recommissioning reviews

• Existing systems
• Central heating/cooling
• Air handling units
• Heat pumps/rooftop units
• Pumping
• Outside air
• Central chilled water loop
• Economizers

• Existing controls
• Sequence of operations
• Resets
• Start/stop times

• Give the building a tune-up
• Fix whats there

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Good candidates

• Customers who want Energy Star label or wants to
  be LEED-EB certified
• Customers with high watts per square foot of
  energy usage
• Customers who never commissioned their building
  when it was built
• You do not need to include recommissioning
  measures in your report. If the customer is a
  good candidate, please promote this program in
  your write up

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Funding for Study and Implementation

• Study funding
• Up to 50 of study cost, not to exceed 15,000
• Based on savings estimate
• Implementation
• kW reduction rebates
• 200/kW
• Customer will earn the higher of the two
• Any age building over 50,000 sqft qualifies
• For both recommissioning and retro-commissioning

20,000
75

• kWh reduction rebates
• 0.0525/kWh

or
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Implementation

• Rebate limitations
• Up to 50 of measure and implementation cost
• Must be 1-15 year payback
• We still want to know when customers implement
  outside of this range

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Fast Track option

• Implementation rebates for customers who have
  completed a study and analysis on their own
• Requires preapproval

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Program Overview

• Custom Efficiency

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Custom Efficiency

• Incentives to implement energy-saving measures
  that are not covered by the prescriptive programs
• Xcel Energy pre-approval required prior to
  equipment purchase
• Replace existing equipment
• Install new equipment
• Process change

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Custom Efficiency Requirements

• Pre-approval required prior to purchase
• Simple paybacks between 1-15 years
• Rebate amount offered valid for 1 year from
  pre-approval date
• Rebates cannot exceed 50 of the project cost
• Rebates apply to new equipment
• Leased equipment may qualify
• Used equipment does not qualify

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Custom Efficiency Project Examples

• Lighting
• Retrofits or replacements that are not one-to-one
  
• Cooling
• Economizers
• Motors/Drives
• Individual motors greater than 200 HP
• VFDs greater than 200 HP
• Compressed Air
• Reduce HP of compressors
• Custom Examples
• Process changes
• Refrigeration systems

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Program Overview

• Energy Management Systems

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EMS Program

• Offers rebates for installing equipment that
  controls and reduces a buildings energy usage.
• Two part program
• Provides incentives for on-peak and off-peak
  energy conservation
• On-peak rebated at up to 400/kW
• Off-peak rebated at up to 0.0525/kWh
• Projects can have both on-peak and Off-peak
  components.

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EMS Program

• On-peak savings
• Measures that reduce demand specifically during
  the hours of 2 p.m. to 6 p.m. June 1st through
  September 30th (holidays excluded)
• On-peak for this program is defined as 8 a.m. to
  6 p.m. Monday Friday
• Up to 400/kW of on-peak demand reduction
• Off-peak savings
• Off-peak is defined as the hours between 6 p.m.
  and 8 a.m. and all day Saturday, Sunday, and
  holidays
• Up to 0.0525/kWh of energy conservation

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EMS Program

• What is covered
• New EMS system where none existed before
• Replacing a non-functioning EMS
• Adding functionality
• What is not covered
• Replacing an obsolete, but functioning system
• Duplicating existing system functionality
• Note Must demonstrate how new system saves over
  existing system

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EMS Program

• Pre-approval required for all projects
• Payback between 1 and 7 years
• Confident about persistence
• Pre and post verification
• Annual verification to monitor program
  performance

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2007 Energy Analysis
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Energy Analysis

• Online study
  Free
• On-site Study
  200-300 (4 hr. study)
• Engineering Assistance Study Up to 50
  funding,
• 
  15,000 max
• Examples include Cooling system replacement,
• refrigeration, space or process heating, or
  custom
• conservation projects
• Study to be performed on an equipment/supplier
• impartial basis

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Program Information

• Go to Xcelenergy.com/rebates
• Enter your CO zip code
• In the left column look for the program name
• Lighting Efficiency
• Cooling Efficiency
• Motor Efficiency
• Custom Efficiency
• Recommissioning
• Refrigeration recommissioning

• Energy Design Assistance
• Compressed Air
• Energy Management Systems
• Energy Analysis
• Lighting redesign

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Contact Information

• Fran Long
• Trade Relations Manager
• 303-294-2082
• francis.c.long_at_xcelenergy.com

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Program Overview

• Compressed Air Efficiency Study

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Compressed Air Efficiency

• System efficiency studies
• Determine the systems operating conditions
• Supply conditions (HP, kW, hours)
• System demand (max/min loads, end uses)
• Identify where compressed air is wasted
• Leaks
• In-appropriate/non-efficient
• Recommend improvements
• Energy savings and payback

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Compressed Air Efficiency

• Xcel Energy offers study funding as a way to
• Educate customer on operating costs
• Properly size system
• Review system distribution and air management
• Reduce kW power requirements by repairing leaks
• Provide recommendations with associated payback
  periods
• Study Requirements
• System must be 50 HP
• Must include an efficiency report
• Must include ultrasonic leak survey

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Compressed Air Efficiency

• Xcel Energy funds study costs as follows
• 50 - 99hp - Xcel Energy pays 100 of study cost
  up to 2,500
• 100 hp - Xcel Energy pays 75 of study cost up
  to 15,000
• Reimbursed within 6 weeks after study is
  completed, reviewed and 50 of air loss repaired

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Compressed Air Efficiency

• Additional rebate opportunities
• Equipment changes
• Capital investment for system improvements
• Rebate through Custom Efficiency
• Submit project per Custom Efficiency rules

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Program Overview

• Energy Design Assistance

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Energy Design Assistance Overview

• We work with commercial building owners,
  architects and engineers
• Evaluate potential energy-efficiency improvements
  
• For new construction, major renovations or
  additions
• Start in early design development or pre-design

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Requirements

• gt50,000 sq. ft. for commercial facilities
• gt150,000 sq. ft. for housing
• Early enough to influence decision-making
• Schematic design or design development Stages

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Features

• Free energy modeling and verification
• Owner incentives for implementation
• Reimbursement for architects and engineers
  working on the project

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Typical Strategies Explored

• Architectural
• Window sizes
• Glass types
• Sun shading
• Daylighting
• Electrical strategies
• Daylight sensors, occupancy sensors, efficient
  lighting, etc.
• HVAC Strategies
• Variable frequency drives, motor, chiller and
  heating efficiency improvements, outside air
  controls, etc.
• Custom Strategies

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EDA Incentive

• Based on performance better than International
  Energy Conservation Code (IECC) 2003
• Paid on a sliding scale from 170/kW to 275/kW
• As the building becomes more efficient, the /kW
  saved increases
• Incentive is subject to final MV

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Program Overview

• Lighting Efficiency

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Rebate requirements

• Weekday daytime operation
• Indoor lighting only
• Purchased and installed after 10/17/06
• One-year from invoice date
• Per fixture rebate based on the type of new
  equipment being installed
• One-to-one retrofits or quantity of fixtures
  installed
• Overall wattage reduction

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Three Rebate Types

• Lighting rebate for retrofits
• Lighting rebate for new construction
• Lighting rebate for parking garages
• Lighting Redesign (new as of April 15th, 2008)

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Retrofits Covered
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Retrofits Covered
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Program Overview

• Rebates also available for
• Automatic Controls
• Occupancy Sensors
• Wall Mount
• Ceiling Mount
• Photocells

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Lighting Efficiency retrofit rebates
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Compact Fluorescent Requirements

• Hardwired (dedicated) and pin-based (modular)
  CFLs
• Not available for screw-in (integral) CFLs

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Other Requirements

• Super T8 Requirements
• High Lumen lamp (3,100 initial lumens), other
  requirements
• High Ballast Efficacy Factor
• Go to www.CEE1.org for qualifying lamps and
  ballasts

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New Construction Lighting

• Available to
• New buildings
• Major renovations
• Additions
• Eligible equipment
• Super T8s
• T5 Fixtures
• Hardwired CFL fixtures
• HPS, MH, and PS-MH
• High-bay T8 (6 or 8-lamp) and T5HO (4-lamp)
  fixtures

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New Construction Lighting

• Items that do not qualify
• Standard T8s
• HPS and MH fixtures gt150W
• LED exit signs
• Occupancy sensors and photocells
• Reflectors

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Lighting Efficiency New Construction rebates