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2012 Critical Issues Summit Energy Panel, Part I
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  • As school budgets get tighter, more people are realizing that many of the items on a typical school budget are not optional. Energy cost may be one of the last areas where adjustments can be made without compromising personnel compensation or quality of service.
  • A 400% variation in energy use intensity of buildings in the United States exists that is not explained by age, technology, hours, size, climate.
  • Natural gas wells are being capped. Power generation plants are being mothballed.
  • Example 1: New School building with regular power quality problems. Motors burning out, light fixtures failing early. Two years after construction, it was discovered that the a power conditioner was installed as part of the original construction, but was never turned on.Example 2: Public school built around 1975 with pneumatic controls, with consistently high heating bills and increasingly more difficult to control temperature. Detailed physical inspection of unit ventilators revealed that in prior years as pneumatic controls failed, the outside air dampers where hardwired in the open position (either 100% or 75% open).
  • Ensure thermostat setting equals actual space temperature
  • Reduce outside air requirements by adjusting dampersto minimize the need to condition outside air (within codes)
  • 1. Energy Start and SIEU study recommends the use of occupancy sensors to ensure that cleaning staff turns off the lights when they leave an area.2. Joe Serna Jr (office building). Instituted day cleaning with hours from 11am to 8pm during 2001 energy crisis. Savings of 8% Total Building Energy
  • Every year Americans use 4 billion kWh to brew 30 billion pots of coffee.Smart Powerstrips
  • Sponsor PostersPromotionalEvents, Energy TipsSheet, CompanyNewsletters, CompanyAnnouncements, Informational Posters
  • ENERGY STAR labeled computers, copiers, external power adapters,fax machines, laptops, monitors, multifunction devices, printers,scanners, water coolers, and more
  • Harvard University – Deployed EPA Power Management software across it’s network of 800 computers using 1 technician working for ½ a day.
  • 1. Light loss factor resultingfrom dirt and dustaccumulated on light fixturesand lamps2. Light loss factor resultingfrom dirt and dustaccumulated on light fixturesand lamps
  • Make sure OC doesnot take the place of good habits. Evergreen Public Schools – Vancouver WA – found that the extra 10minutes on the motion sensor after everyone left their room could be translated into 12,000.00/year. They adjusted their timing to be closer less than the original 20 minutes.
  • Enhanced Options1. EMS Managed Lights2. Dark Campus
  • Enhanced Options1. EMS Managed Lights2. Dark Campus
  • Make sure you understand how optimal start works on your system.
  • “Air handling and distribution is the most prevalent deficiency in buildings.”

2012 Critical Issues Summit Energy Panel, Part I 2012 Critical Issues Summit Energy Panel, Part I Presentation Transcript

  • Alwyn A. JohnEnergy Management Coordinator TST BOCES
  • Agenda Part I - The Basics of Energy Management – What You Need to Know Part II - Making Energy Performance Contracting Work for your District Part III - Grab Long-term Benefits from your Capital Projects 2
  • Part I The Basics of EnergyManagement – What You Need to Know 3
  • Why is Energy Management Important? “Good Energy Management is Good Business”The evidence is clear that for both public and private k12 schools, adopting an energy management strategy is a business decision you cannot afford to ignore. 4
  • The numbers EPA:  $6 Billion – Annual energy bill to operate America’s primary and secondary schools  $1.5 Billion - EPA studies show that $1 out of every $4 spent on energy by US schools is wasted.  Energy cost total between 1.5% to 3.5% of a typical school district’s annual budget. Energy is often second only to staff salaries – more than computers and textbooks combined. 5
  • Typical K12 Energy Use Distribution (varies by climate zone) 7% Lighting 10% Cooling 30% Space Heating 23% Water Heating Other 30% 6
  • Signs of Energy Waste in K12 Buildings EPA/Energy Star Statistics:  The least efficient schools use three times (3x) more energy than the best energy performers  Top performing ENERGY STAR labeled schools cost forty cents per square foot less to operate than the average performers. 7
  • Signs of Energy Waste Little improvement of overall energy consumption has been seen although building components are 30% more efficient since 1980. Over-sizing of building fan systems, on average, occurs by 60%. Most chillers are oversized by 50–200%. • - EPA 8
  • Strong Energy Management = Real Savings Fairfax County Public Schools (VA)estimates an annual energy savings of $4.5 million (7.19%) from energy efficiency improvements on a $62.6 million utilities budget (FY: 2011-12) In 2001, the first year of their Energy Management program, Sandy Creek CSD (NY) saved $300,000 on a $1.4 Million utility budget (~21%). Total of $2.7 Million in savings from 2001 to 2009. 9
  • Key Elements of an Effective Energy Management Policy1) Maintain a Useable Energy Tracking & Benchmarking System2) Regularly Update and Follow a Market Sensitive Energy Procurement Policy3) Enforce a Staged Approach to Implementing Energy Conservation Measures 10
  • Maintain a Useable Energy Tracking & Benchmarking System 11
  • Energy Tracking-Utility Bill Tracking and Analysis (Monthly)  Maintain a copy (physical or electronic) of all utility bills for use by the Facilities Department.  Record monthly billing data including unit cost, quantity and weather information  Compare usage to similar prior periods to identify maintenance issues, etc.  Software Tools:  MS Excel, EnergyWatchdog, SchoolDude/Utility Direct, 12
  • Potential Billing Issues Miscellaneous Charges  Manual download charges on interval meters Demand Charges  Do they appear to be reasonable ? Quantities and Volume  Verify that the figures for kwh, KW and therms of natural gas agree between the supply and delivery companies. Electricity should be 1-to-1 and Natural gas should be +- 1.0%. 13
  • Benchmarking-Benchmarking (annually) – Using historical utility data to: Confirm savings from energy conservation investments Compare a building’s normalized performance vs. internal and external peers Software/Service Examples: NYSERDA’s Energy Smart Schools Benchmarking program, EPA Portfolio Manager 14
  • Regularly Update and Follow a Market Sensitive Energy Procurement Policy 15
  • Pending Crisis Due to the recession, demand for energy supply is down, resulting in the lowest cost per unit of electricity in the last decade. Natural gas is also seeing record lows.This is a TEMPORARY condition. Over time, usage demand will return and cost/unit will rise) Utility delivery (NYSEG, etc)companies are starting to shift rate structures to put a greater emphasis on peak demand usage. Over the next 5 years or so we can expect to see increasing peak demand charges and an elimination of the differential between day and night rates. When usage demand returns, we will be impacted by both increased cost/unit and increased peak demand charges 16
  • Anatomy of a Utility BillThanks to deregulation laws in NYS, our primary utility bills (electricity and natural gas) are split into two sections: DELIVERY SUPPLY Responsible for physical  Provider of the actual energy delivery of energy and usage  Ex: NYSEG Solutions, Direct metering. Energy, MEGA, etc. Owner of the power lines, gas piping and onsite meters Ex: NYSEG, RGE, etc. 17
  • Alternative Energy Suppliers - Benefits Avoid hourly billing Take advantage of discounts for longer term purchase agreements Control over the risk vs. reward balance 18
  • Alternative Energy Supplier - Options Self-directed Bidding Process Private Broker – (Professional Services) Join a group:  MEGA  OCM BOCES Energy Procurement  TST BOCES Energy Consortium  Others … ** Note the difference between wholesale and retail suppliers 19
  • Enforce a Staged Approach to Implementing Energy Conservation Measures 20
  • 21
  • Operations & Maintenance  Functioning as designed  Calibrate thermostats  Adjust dampers  Janitorial services 22
  • Functioning as Designed Retro-commissioning Regularly inspect all equipment and controls to ensure they are functioning as designed 23
  • Functioning as Designed Example 1: New school building with regular power quality problems. Motors burning out, light fixtures failing early. Two years after construction, it was discovered that a power conditioner was installed as part of the original construction, but was never turned on. Example 2: Public school built around 1975 with pneumatic controls, with consistently high heating bills and increasingly more difficult to control temperature. Detailed physical inspection of unit ventilators revealed that in prior years as pneumatic controls failed, the outside air dampers where hardwired in the open position (either 100% or 75% open). 24
  • Calibrate Thermostats Periodically, walk through the building and compare the thermostat setting with a hand held digital thermometer (preferably with 2 decimal places) 25
  • Adjust Dampers  Bring in the least amount of outside air necessary to maintain proper air quality  Reduce outside air requirements by adjusting dampers to minimize the need to condition outside air (within codes) 26
  • Janitorial Best Practices  Team Cleaning  Day Cleaning  Coordinate Lighting  Occupancy Sensors1. Joe Serna Jr (office building. Instituted day cleaning with hours from 11am to 8pm during 2001 energy crisis. Savings of 8% Total Building Energy2. Johnson City School District saved 7.95% Total District Energy during fiscal 2010-2011 by time shifting their third shift cleaning staff. 27
  • Potential Savings for Changes to O&M 28
  • 29
  • Occupants‘ Behavior  Turn off Equipment  Institute an Energy Awareness Program  Use ENERGY STAR® Equipment  Install Monitor Power Management Software  Harvest Daylight  Use Work Station Task Lighting/Zoned Lighting 30
  • Turn off Equipment During off hours, make sure to power down everything – such as copiers, kitchen equipment, and task lights - Smart Power strips 31
  • Institute An EnergyAwareness Program  Create Promotional Items  Write News Releases  Link to National Campaigns  Communications Kit  Energy Star Partner Kit (Free)  - motivate change 32
  • Provide Direction onoff-hours use of facilities 33
  • Use Energy Star Equipment Adopt a procurement policy as part of your overall successful energy management strategy 34
  • Install Monitor/CPU Power Management Software  Monitor Power Management - Save up to $55 per monitor annually  CPU/Hard Drive Power Management - Save up to an additional $45 per computer annuallyHarvard University – Deployed EPA Power Management softwareacross it’s network of 800 computers using 1 technician working for ½a day. 35
  • Potential Savings for Changes to Occupants’ Behaviors 36
  • 37
  • Lighting Change Incandescents to CFL & HID Convert T12 to T8 and T5 Delamp Full Floor Lighting Sweeps Occupancy Sensors High Efficiency LED Exit Signs Install Timer Controls or Photocells for Exterior Lighting/Dark Campus 38
  • Convert T12 to T8 & T5  High efficiency 4 lamp T8 fixture:  40% less heat output  10% greater light output  40% less Watts than T12  Re-Lamping? Consider  Luminaire Dirt  Depreciation 39
  • Occupancy Sensors  Install occupancy sensors  to automatically turn off  lights when physical  movement stops 40
  • Install Timer Controls orPhotocells for Exterior Lights  Automatically controls lights in response to daylight  Install timer controls or photocell for exterior lighting  EMS Managed Lighting/Dark campus 41
  • Potential Savings for Changes to Lighting 42
  • 43
  • Controls Adjust Temperature After Hours Usage Adjust Ventilation Limit Access to Thermostats Seasonal Changes Optimize Start Up Time and Equipment Sequencing Coast Last Hour of Operations 44
  • Adjust Temperature  Physically walk through the building and talk with tenants to determine if the actual temperature is comfortable.  Consider clothing worn during that season  Reduce (increase) temp. a min of 10 degrees F at night, weekends and holidays during heating (cooling) season 45
  • Optimize Start Up Time & Equipment Sequencing  Experiment to determine the  LATEST possible start up time.  Can you start your systems 5, 10, 15,30 minutes later and still achieve the desired temperature when tenants arrive? 46
  • Coast Last Hour of Operations  Experiment to determine the EARLIEST possible time the systems can be powered down while maintaining comfort.  Can you shut down 15, 30, 45, 60 minutes early and still maintain adequate IAQ? 47
  • Potential Savings for Changes to Controls 48
  • 49
  • Equipment Install VFD & VAV Install Heat Recovery Equipment Relocate Thermostats to Optimal Locations 50
  • Install Variable FrequencyDrives & Variable Air Volume Systems  Motors operate at part-load 98% of the time  VAV air systems use 30% less energy than constant volume 51
  • Potential Savings for Changes to Equipment 52
  • How Will We Pay For This? Annual Maintenance Budget Traditional Capital Projects SED $100,000 Project Energy Performance Contract (EPC) 53
  • Energy Performance Contracting SED allows EPC agreements to go out a maximum of 18 years. 5 to 10 year EPC agreements are optimal Take advantage of SED $100,000.00 project incentive. C&S Companies of Syracuse has an innovative solution called “NET ZERO” that combines features of an EPC agreement with five $100,000.00 projects. Building aid + energy savings + grant money = $0.00 cost to district for over $500,000.00 worth of projects. Consider a “self-directed” EPC 54
  • Thank YouEmail me for full contact information and links to all of the programs mentioned in this presentation Alwyn A. John ajohn@tstboces.org Cellphone: 607-227-6361 55