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Energy Savings &Energy Savings &Efficiency WorkshopEfficiency Workshop
Our MissionOur Mission
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Inspired by diverse faith perspectives to care for the Inspired by diverse faith perspectives to care for the natural world and its most vulnerable inhabitants, natural world and its most vulnerable inhabitants, Maine Interfaith Power and Light works to engage the Maine Interfaith Power and Light works to engage the faith communities of Maine in efforts to counter climate faith communities of Maine in efforts to counter climate change through education, advocacy, energy change through education, advocacy, energy conservation and the use of clean renewable powerconservation and the use of clean renewable power
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“If humanity wishes to preserve a planet similar to that on which civilization developed and to which life on Earth is adapted… CO2 will need to be reduced from its current 387 ppm to at most 350 ppm.”
NASA climatologistDr. James E. Hansen, 2008
Getting to 350 by 2050…Getting to 350 by 2050…
Dramatically reduce the use of fossil fuels
Improve agricultural & forestry practices
Stop coal use by 2030
Source: Dr. James E. Hansen
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Getting to 350 by 2050…Getting to 350 by 2050…
Dramatically reduce the use of fossil fuels throughDramatically reduce the use of fossil fuels through energy efficiency energy efficiency
Energy efficiency has great potential to…
• Reduce U.S. energy use 23% by 2020 • Eliminate $1.2 trillion in waste nationwide • Avoid 1.1 gigatons of greenhouse gas emissions:
like taking all U.S. cars off the road
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What can you do? What can you do? Take the challenge…Take the challenge…
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• It’s about faith groups cutting carbon dioxide (CO2) and other greenhouse gases responsible for climate change.
•We suggest a goal of at least 10% over the next year. Cutting 10% is an achievable goal and is in line with what climate scientists say we need right now.
•Open to churches, synagogues, temples and all communities of faith across Maine
What is the challenge?What is the challenge?
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•Get an Efficiency Maine Energy audit of your faith community building
•Use the online Cool Congregations Calculator at www.coolcongregations.com
•Use the tools provided by Maine Interfaith Power and Light to avoid energy use and consume energy efficiently
•Choose your own path for reducing CO2
Ways to meet the challenge…Ways to meet the challenge…
Energy Efficiency and You…Energy Efficiency and You…
Benefits of energy efficiency:
• Increases comfort
• Lowers energy bills
• Hedges against energy price hikes
• Builds home equity
• Promotes energy independence
• Reduces CO2 footprint
• AND it pays for itself!
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Energy Efficiency and You…Energy Efficiency and You…
Today we will explore…
• Where to focus: I.D. priority areas for energy efficiency savings
• How to get it done: completing & paying for energy efficiency work
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• Heating
• Building Envelope & Insulation
• Hot Water
• Lighting
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Priority areas for energy efficiency savings…Priority areas for energy efficiency savings…
HeatingHeating
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To improve the energy efficiency of your To improve the energy efficiency of your heating system you will need to:heating system you will need to:
• Compile heating fuel use history
• Determine building & heating system efficiency
• Identify problems
• Identify cost effective solutions
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Compile heating fuel use historyCompile heating fuel use history Note: Energy Use Data Tracking Sheets on MeIPL website
Heating Oil Fuel Usage
gal cost
2009 Jan 177 $ 354
Feb 212 $ 425
Mar 120 $ 240
Apr 56 $ 111
May 32 $ 64
Jun 24 $ 48
Jul 0 $ -
Aug 0 $ -
Sep 0 $ -
Oct 68 $ 136
Nov 117 $ 234
Dec 175 $ 350
Total 981 $1,962
Mo Avg 82 $164
$/gal Avg $2.00
Natural Gas Usage
Ccf Cost Gal
2009 Jan 62 119 44
Feb 74 143 53
Mar 42 81 30
Apr 19 37 14
May 11 21 8
Jun 8 16 6
Jul 0 0 0
Aug 0 0 0
Sep 0 0 0
Oct 24 46 17
Nov 41 79 29
Dec 61 118 44
Total 343 $659 245
Avg Mo 29 $55 20
$/Ccf $/Gal
Avg $ 1.919355 2.6870968
Annual Fuel Use (gallons)
Square Footage of Heated Space
Determine building/heating efficiency Determine building/heating efficiency
Calculating a heating efficiency indicator
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Determine building/heating efficiencyDetermine building/heating efficiency What the “efficiency indicator” means
.1 to .25 : efficient heating system & well insulated building: little to no action needed
.25 to .5 : investigate heating system efficiency & insulation: likely action needed
.5 to .75 : inefficient system or poor insulation: plan for action
.75+: ALERT! You’re heating the outdoors: take action immediately!
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EXAMPLE #1 (avg Maine home)
(annual fuel use) 1000 gals = .5
(sq ft of building) 2000
Determine building/heating efficiencyDetermine building/heating efficiency Calculating a heating efficiency indicator
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1,350 gallons/ 8,000 SF = 0.17 gals/SF
(In floor radiant heating, R50 in attic;boiler fire rate 1.25 gal/hr)
Determine building/heating efficiencyDetermine building/heating efficiency Calculating a heating efficiency indicator
Building (8,000 SF)
Determine building/heating efficiencyDetermine building/heating efficiency Calculating a heating efficiency indicator
Building (13,000 SF)
11,600 gallons/ 13,000 SF = 0.9 gals/SF
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Common issuesCommon issues
Use of analog thermostats
•Replace manual thermostats with programmable digital: up to 3% savings!
•Hire a professional to install an outdoor air temperature sensor to control boiler to smooth the transition from cold to warm:10% - 20% savings!
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Common issuesCommon issues
Outdated and ill-maintained heating systems
Hire a professional to
•Get a system tune up
•Update controls on boilers
•Buy a new boiler/furnace if 15 -25 yrs old
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Improvement Estimated Savings
Heating System Tune-up 2 to 10%
Reduced firing rate or nozzle reduction 6 to 10%
Reduced temperature of circulating water/furnace air 5 to 12%
Pipe and duct insulation 5 to 10%
Flame retention head burner 15 to 20%
New high-efficiency hot water boiler 20 to 40%
New high-efficiency warm air furnace 20 to 40%
Source: Maine Oil Dealers web site- www.meoil.com
Building Envelope & Building Envelope & InsulationInsulation
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Common places for air leaksCommon places for air leaks
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Stack EffectStack Effect
Common places for air leaksCommon places for air leaks
Image adapted from http://www.energyauditgo.com/Work.html
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Common places for air leaksCommon places for air leaksice dams
10/08/10 26insulation / envelope
At a minimum insulate the sill plate area to prevent cold air infiltration
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Eliminate air leaksEliminate air leaksSill plates
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Eliminate air leaksEliminate air leaksinstall door sweeps and weather stripping
Eliminate air leaksEliminate air leaksplumbing penetrations
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Remove can lights OR build an insulated box around lights
Eliminate air leaksEliminate air leaksCan lighting
Heat loss
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Eliminate air leaksEliminate air leaksAttic hatches
Insulate
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R-value = resistance to heat flowThe higher the R-value the better!
R Value (avg)Per inch
Fiber Glass batts 3.0Rock Wool 3.0Cellulose 3.0Pertlite (loose fill) 2.5Vermiculite (loose fill) 2.5Polystyrene rigid board 4.0Polyurethane (rigid boards) 6.0Polyisocyanurae (rigid boards) 6.0Urethane Foam (sprayed) 8.0
Type
Building Insulation
Insulate Start with the attic!
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R 19
Over 20 inches of blown in cellulousR 49
Insulatewindows
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InsulateInsulated doors (R12) in place of wooden doors (R1)
HEAT
LOS
S!
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Insulate basement walls
Masonry Foundation
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Heat loss through a basement accounts for 15% to 30%
Hot WaterHot Water
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electric or gas heater boiler coil
38hot water
Hot WaterHot Water
Hot WaterHot WaterCommon issues and problems
• Heater and pipes not insulated
• Hot water heater temperature set too high
• Water heated when not in demand
• Water heater tied to heating system requiring boiler firing during non heating season
• Constant hot water circulation
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Hot WaterHot Water
• Reduce hot water temperature: 120 degrees or less OK
• Install a timer on your hot water tank:• One congregation saved $700 in
a year• One congregation spent $150
on a timer and saw a 2 month pay back
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• Heat water directly without the use of a storage tank
• No standby heat losses
• Delivers constant supply of hot water
• Cost about 10 to 20 % less to operate than standard tank water heaters
• 7 year pay back
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Hot WaterHot WaterOn demand, tankless heaters
Hot WaterHot Water Insulate hot water piping
Heat loss with no insulation
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LightingLighting
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Assess lighting needs
• Take inventory of lights
• Inventory should by type and by area (room, hallway, etc.)Note: be mindful of minimum lighting requirements (e.g. adequate lighting in stairwells)
• Estimate hours per week that lights are on
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LightingLighting
• Turn off lights
• Adjust lighting levels to match needs and remove un-needed lighting
• Make use of free day lighting
• Use high reflectance ceiling tiles and light colors to carry daylight into interior space.
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Replace incandescent bulbs with compact fluorescents wherever possible.
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Lighting
Special Considerations for Faith Communities
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Special Considerations for Faith Communities Schedule activities on common days to save energy
Building Occupancy Ratecommon example
Occupied6%
Unoccupied94%
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Special Considerations for Faith Communities Sanctuary ceilings often a problem area
Sanctuary Ceiling R 1?
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Special Considerations for Faith Communities address air circulation (especially in sanctuaries)
Airius Thermal Equalizers
• Installation of the units will help to stabilize the temperature • Peak ceiling temperature are 5
to 10 degrees warmer than the floor.
• Reported fuel oil savings 10-20%
• Available at Maine Green Building Supply in Portland
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• Replace incandescent bulbs with compact fluorescents (CFLs) wherever possible.
• Replace T-12 fluorescent fixtures with energy saving T-8 fixtures and electronic ballasts.
• Replace incandescent and fluorescent exit signs with light emitting diodes (LEDs) or the latest solid-state technology.
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Special Considerations for Faith Communities Lighting
T-12
T-5
T-8
Special Considerations for Faith Communities Lighting: install occupancy sensors
• Install occupancy sensor switches in seldom used areas: • Passive Infrared (PIR) which
detects body heat
• Ultrasonic (US) units which detects body movement.
• Install controls on exterior lights.
• Install motion sensors, time clocks, or photoelectric sensors on exterior parking lots and security lighting.
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Energy Efficiency AssistanceEnergy Efficiency Assistance
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Assistance for Faith GroupsAssistance for Faith Groups
• Energy audits
• Low interest loans
• Rebates & incentives
• Renewable energy grant
Efficiency Maine at 1-866-376-2463
www.efficiencymaine.org 54
Assistance for HomeownersAssistance for Homeowners
• Home Energy Savings Program: up to $4500 back in assistance
• Home Energy Savings Loan Program (PACE): up to $15,000 in loans
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Other programsOther programs
• Low Income Weatherization Program
• Central Heating Improvement Program (CHIP)
• And many other programs
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Home Energy Savings Program Home Energy Savings Program
$1,500 back for 25-49% energy savings
OROR
$3,000 back for 50% or more energy savings
PLUSPLUS
$1,500 federal tax credit by Dec 31st, 2010
= up to $4500 in assistance= up to $4500 in assistance
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Home Energy Savings Program Home Energy Savings Program
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Home Energy Savings Program Home Energy Savings Program
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Example
2800 square foot home
Heating bill = $3000 (1300 gallons of oil)
Electricity = $1500
Efficiency indicator = .46 (1300/2800)
Recommended Improvements
Seal air leaks
Insulate attic
Insulate basement walls
Replace light bulbs with CFLs
Projected Savings from Improvements
Lower heating bills by 39%
Lower electricity bills by 12%
Home Energy Savings Program Home Energy Savings Program
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Projected Savings from Improvements
Energy audit $400Materials $3900Labor $2800
$7100
(minus) Efficiency Maine rebate ($1500)(minus) federal tax credit ($1170)Total Cost $4430
Annual Energy Savings
Lower heating bills by $1203Lower electricity bills by $ 173Annual Savings $1376
Improvements paid back in 3 years
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Get started today…Get started today…
1. Get a form
2. Check a box
3. Provide contact info for you and your congregation
