EXPLORING ENERGY EFFICIENCY & CONSERVATION

EXPLORING ENERGY EFFICIENCY & CONSERVATION

What is Energy Efficiency? PROJECT TITLE Energy Efficiency is doing more with the same amount of energy or less energy. Managing energy consumption and enacting energy efficiency measures save money and make buildings more comfortable, healthy, and safe.

Efficiency vs. Conservation PROJECT TITLE Efficiency Conservation Energy efficiency involves the use of technology that requires less energy to perform the same function. Focuses on the equipment or machinery being used One example is installing LED light bulbs throughout the house Energy conservation includes any behavior that results in the use of less energy. Focuses on the behavior of people One example is using daylighting through windows rather than turning on the lights

Benefits of Energy Management Reduces consumption Increases comfort & safety Reduces pollution Makes our economy stronger Increases our energy security PROJECT TITLE

National ENERGY STAR Program PROJECT TITLE Joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy National symbol for energy efficiency Products and/or buildings must meet certain standards to display label For homes & businesses

How Efficient are U.S. Schools? PROJECT TITLE Average annual energy bill to run America's schools: nearly 6 billion A typical school district with 3,000 students can spend 400,000 on energy per year. The least efficient schools use up to 3 times more energy than the best energy performers. Top performing ENERGY STAR labeled schools cost 0.40/square foot less to operate than the average schools. Luckily, energy is a manageable expense.

When we look for ways to save energy in a school, we must keep in mind: The health and PROJECT TITLE safety of the occupants. Indoor air quality – adequate ventilation. The comfort of the occupants.

How Does Your School Use Energy? PROJECT TITLE Energy System Building Envelope Components Heating, Ventilation and Air Conditioning (HVAC) Lighting Electric Appliances

The Building Envelope PROJECT TITLE Any part of the building which creates a boundary between indoor and outdoor space. Walls Roofs Ceilings Doors Windows

The Building Envelope PROJECT TITLE The envelope should limit: The amount of thermal energy conducting through. The amount of air that moves in and out of the building.

Savings Opportunities: Building Envelope PROJECT TITLE Inadequate weatherstripping Windows left open Single-paned windows

HVAC Heating System (boiler, furnace) Ventilation System Air Conditioning (chillers) Hot Water Thermostats Ducts and Pipes PROJECT TITLE

Building Automation System (BAS) PROJECT TITLE Provides school personnel with real time energy and performance data to manage the building’s energy needs. Temperature Sensor

Types of Lighting Found in Schools Incandescent Fluorescent High Intensity Discharge (HID) Light Emitting Diode (LED) PROJECT TITLE

PROJECT TITLE Fluorescent

Ballast PROJECT TITLE Required for operation of fluorescent lamps. Provides initial arc to start lamp. Regulates current during operation. Two main types: magnetic electronic

Compact Fluorescent PROJECT TITLE Miniature fluorescent with built in ballast Ideal for replacement of incandescent lamps Saves up to 75% on energy use Lasts 7-10 times longer than an incandescent Low thermal energy output Improved color rendition

PROJECT TITLE Light Emitting Diodes (LEDs) Energy Star bulbs rated at 25,000 hours. Can use up to 50% less energy than a CFL. Widespread use over the next 20 years could reduce lighting energy demand by 33%. Currently more expensive to purchase compared to incandescent and CFLs.

PROJECT TITLE Comparing Light Bulbs Answer Key

PROJECT TITLE Electric Appliances in Schools Electric Space Heaters Air Conditioning Electric Water Heaters Refrigerators/Freezers Lighting Computers and Office Equipment

Savings Opportunities: Electric Appliances Monitors with Screen Savers, Power Saving Options Not Enabled PROJECT TITLE

Personal Computers Enable Power Management Settings Set your computer to automatically go into STANDBY mode after 10 minutes. To bring it back up, either move your mouse or hit the power button (depending on your machine). Disable screensavers! PROJECT TITLE

Saving with Vending Machines PROJECT TITLE Unplug during vacations Install timers

Plug Loads Students count electrical devices Students estimate number of hours per week device is used Excel spreadsheet uses formulas to compute cost PROJECT TITLE

Student Energy Audit PROJECT TITLE Investigate your building and look for the following: Fluorescent light ballast type Light levels Humidity levels Temperature Electricity usage Reporting Form (Before and After)

Light Meter A light meter measures the amount of light in a space in units of foot candles. Spaces that are overly lit may be using more energy than necessary. PROJECT TITLE

Hygrometer A hygrometer measures relative humidity. Warmer air can hold more moisture, so if cold air is heated, it will feel very dry unless humidified. PROJECT TITLE

Digital Thermometer The digital thermometer can be used to tell if a room is of the appropriate temperature, and compare how spaces may be infiltrated by thermal energy or moving air. Waterproof versions can also help check the temperature setting of your water heating system. PROJECT TITLE

Kill A Watt meter This tool allows you to measure how much power (Watts) an electrical device uses at any given time. By changing the display, it will also measure kWh consumed over a period of time. PROJECT TITLE

Infrared Thermometer This tool allows you to measure the temperature of a given location using the amount of infrared radiation leaving the surface. A laser helps to guide your measurement. PROJECT TITLE

Anemometer This tool allows you to measure the speed of moving air through a vent. This tool can be helpful to determine if the HVAC system is exchanging air at the correct rate for proper ventilation. PROJECT TITLE

PROJECT TITLE Energy Efficiency: The Assessment

Energy Efficiency: Take Action PROJECT TITLE Awareness Campaign What Makes a Campaign Effective? Clearly defined message Motivational components Delivering message via multiple media Persistence in delivering message

For More Information PROJECT TITLE The NEED Project www.need.org [email protected] 1-800-875-5029 Energy Information Administration U.S. Department of Energy www.eia.gov