Small increase in mortgage offset by lower utility bills
ENERGY STAR Labeled Equipment
Lighting products
TV's and DVD/Blueray
Clothes washers and dryers
Refrigerators
Room and central air conditioners
Boilers and thermostats
Heat pumps
Buildings (commercial and industrial)
Focuses on all profitable energy-related investments
Uses proven technology
Typically cut energy costs by 30%
5-Stage approach to energy upgrades
The Energy Star 5 Stages
Lighting
Tune-up
Load Reductions
Ventilation Upgrades
HVAC Improvements
Integrated Process
Lighting
Other Load Reductions
Building Tune-Up
Fan System Upgrades
Heating & Cooling System Upgrades
Stage 1 Lighting: Importance
Lighting energy costs can be reduced by 40 - 70%
Cooling loads are reduced
Savings are verifiable
Improved lighting quality can improve employee productivity or improve home lighting
Stage 1 Lighting: Three Principles of Lighting Upgrades
Meet target light levels
Efficiently produce and deliver light
Automatically control lighting operation
Stage 1 Lighting Technologies
LED Lights
Compact Florescent Bulbs and Fixtures
Electronic Ballasts
Occupancy Sensors and Timers
Re-lamping
Metal Halides and Sodium replacing Mercury Vapor Fixtures
Light Bulb Efficiency Over Time
Graph depicting the efficiency of different lighting technologies from 1800 to 2050, including kerosene, incandescent, fluorescent, light-emitting diode, and high-intensity discharge lamps.
Light Bulb Comparison Chart
LED
10-Year Cost: 40
Pros:
Saves 85% in energy costs
Longest lasting bulb on the market (10+ years)
Dimmable from 10%-100%
Not sensitive to colder temperatures
Instant-on
Mercury Free
Cons:
Greater upfront cost
100W brightness equivalent pending
CFL
10-Year Cost: 43
Pros:
Saves 75% in energy costs
Lasts 8 times as long as the incandescent
Comparable cost to the incandescent
Cons:
Sensitive to colder temperatures
Lesser dimmable range of 20%-90%
Contains mercury-recycling required
Halogen
10-Year Cost: 110
Pros:
Same color quality as incandescent
Mercury Free
Comparable cost to the incandescent
Saves 30% in energy costs
Cons:
Short life span like the incandescent
Incandescent
10-Year Cost: 160
*Note: Non-residential energy rates are generally lower than residential.
How to Read a Lighting Facts Label
New labels meet Federal Trade Commission (FTC) requirements.
Labels are on all light bulbs (incandescents, halogens, LEDs).
Consumers can compare products based on brightness (lumens), cost, life span, hue, and energy usage.
Brightness:
Measured in lumens, not wattage.
Higher the number, the brighter the light.
Life:
Product's life in years.
Based on 3 hours per day usage.
Light Appearance:
Indicates the hue of the color emitted.
Warm/Soft White (around 2700 Kelvin) creates an inviting, comfortable, and relaxing atmosphere.
Cool/Daylight bulbs (closer to 6500 Kelvin) create a bright, clean, and lively mood.
Energy Used:
Energy the bulb consumes (in watts).
Lower wattage means less energy used and lower electricity costs.
Stage 1 Lighting: T-8s
Replace older fluorescent lamps and ballasts with T-8 lamps and electronic ballasts
Cost: 50-$100 per fixture (lamp and ballast)
Benefits:
over 30% energy savings per fixture can be achieved
improved light quality
noise and “flicker” eliminated
simple payback often 5 years or less
Using vintage 1940's lighting technology if not using T-8 lamps and electronic ballasts in fluorescent fixtures
Stage 1 Lighting: What to Look for when You Shop for Light Bulbs
Used to look for Watts (energy)
Now look for Lumens (brightness)
Estimates based on typical incandescent bulbs
150 w -> 2600 lm
100 w -> 1600 lm
75 W -> 1100 lm
60 w -> 800 lm
40 w -> 450 lm
If you're looking to buy a bulb that will give you the amount of light you used to get from a 60-watt bulb, you'll now look for 800 lumens.
Stage 1 Lighting: Controls
Use occupancy sensors to turn off lights when they are not needed
Cost: 25-$80 (ultrasonic or infrared)
Additional sensors to consider
photocells (for exterior lighting)
motion sensors (for security lighting)
automatic dimming systems (to utilize daylighting)
Application Energy Savings
Offices (private) 25-50%
Offices (open spaces) 20-25%
Rest rooms 30-75%
Corridors 30-40%
Storage areas 45-65%
Meeting rooms 45-65%
Conference rooms 45-65%
Warehouses 50-75%
Stage 2 Building Tuneup
Buildings and equipment can benefit from a tuneup in the same way that cars do
Building tuneups offer modest energy savings at a low cost -- and can extend the life of your investment
Start by reviewing your energy bills
Stage 2 Building Tuneup: HVAC Equipment Maintenance
Filter Changes
Coil Cleaning
Charging Refrigerant
Stage 2 Building Tuneup: Duct Leakage and Duct System Modifications
Seal Leaks
Insulate Ducts
Increase Return Air Size
Provide Relief to Return Air
Stage 2 Building Tuneup: Controls
Timers
Setup/Setback Thermostats
Stage 3 Load Reductions
Addresses other wasted energy in buildings
Reduces the capital cost of HVAC upgrades
Allows distribution and HVAC plant rightsizing
Increases comfort
Lowers energy costs
Stage 3 Load Reductions: Shading and Reflectance
Awnings and Overhangs
Roof Coatings
Reflective Window Treatments
Stage 3 Load Reductions: Building Envelope Improvements
Insulate Attic
Insulate Walls
Improve Windows
Insulate Foundation
Stage 3 Load Reductions: Other Load Reductions
Windows —Films, caulking/weather stripping
Roofs —Reflective coloring, insulation
Walls —Insulation, caulking, weather stripping
Stage 3 Load Reductions: Other Load Reductions (continued)
Domestic Hot Water —Flow restrictions, dedicated units
Kitchens —Heat pump water heaters —Exhaust hood upgrades