— S —

Satellite cable box
A set-top box is a cable, satellite, Internet or other device that receives a television signal and delivers that signal to a customer’s television, DVR or sound recording system. Using an older model that is not ENERGY STAR® certified will cost you more money to operate. (more)

Scanner, copier
Copy machines print paper copies of documents and other visual images quickly and cheaply. A scanner is a device that optically scans images, printed text, handwriting or an object, converting it to a digital image. Making the right equipment choice can reduce energy costs. (more)

Seal, dock leveler
An under leveler dock seal can be found along the bottom edge of a dock door, preventing rain, cold air, snow and dust from entering the building. A standard leveler may not give you an airtight seal, leading to heating and cooling losses, dirt and debris on the dock, and gaps where pests may enter the building. (more)

Security/outdoor lighting
Effective outdoor lighting is important for security, to illuminate an area or to enhance visibility to a facility. The wrong fixtures and lamps may not be energy efficient. Security lighting can be used from dusk to dawn. (more)

SEER
SEER stands for Seasonal Energy Efficiency Ratio. The higher the SEER rating number, the more energy efficient an air conditioning unit is. (more)

Set-top box
A set-top box is a cable, satellite, Internet or other device that receives a television signal and delivers that signal to a customer’s television, DVR or sound recording system. Using an older model that is not ENERGY STAR certified will cost you more money to operate. (more)

Shingles, solar
Solar shingles look like typical, durable roofing shingles but provide a dual purpose: They can withstand warm or cold temperatures, wind, hail and inclement weather and also provide clean, renewable energy to your home. (more)

Showerhead
A device in which temperature controlled water is sprayed on the body, usually from an overhead perforated nozzle. (more)

Shutdown - business energy savings ideas
Whether you’re shutting down for maintenance, company vacation, long weekend, or a holiday there are ways to save energy while you are away. (more)

Shutters
A window shutter is a solid window covering used to control the amount of sun that enters a room, provide privacy, protect against weather and improve the looks of a building. Using shutters properly can also save you energy. (more)

Skylights
Light tubes or pipes are usually installed in the roof of a home, or the outside wall of a building, to allow sunlight to reflect through the opening. A reflective material inside the tube directs the sunlight down the tube and with the help of a diffuser, distributes it throughout your home or building. Some light tubes have directional collectors, also called reflectors, which assist in collecting additional directional light down the tube. (more)

Smart appliances
Manage your energy costs by investing in smart appliances. Smart home appliances use computer and communications technology to enhance functions, be more energy-efficient and cost-efficient. (more)

Smart defroster - walk-in freezer Smart defroster kits can be added to walk-in refrigeration systems to help save energy and money. These defrosters decrease the amount of defrost cycles by 35-45% by defrosting the system only when necessary. (more)

Smart grid
The term “smart grid” refers to the continued incorporation of computer intelligence and communication systems onto our system of poles, wires, transformers, switches and meters. (more)

Smart meters
Smart meters are electric meters that use electronic data recording and two-way communication technology to provide you with more detailed information about energy usage and enhanced electrical services. (more)

Smart strip/power strip
A device with a strip of electrical outlets, usually four to six, that plugs into a wall outlet allowing several electric devices to be plugged into the same device. Power strips or smart strips are beneficial in saving energy because many electronic devices have a standby power mode to be instant-on when you turn it on. Instant-on electronics cost you energy and money as they sit waiting for you to turn them on. Power strips and smart strips are commonly used with a computer system or a TV audio/video system. (more)

Soda machine
Soda and vending machines have Energy saving opportunities. The use of occupancy sensors to shut off the front-panel lights and or the compressor when the area around the machine is unoccupied for an extended period of time, is an energy saving opportunity. (more)
 
Solar attic blanket
An attic blanket is a radiant barrier film placed in the attic against the rafters (not on top of the insulation). The blanket reflects solar heat, allowing the home to be cooler in the summer and warmer in the winter. (more)

Solar awning
A solar awning provides the same shading effect as a normal awning but also provides the benefit of providing electricity on sunny days. (more)

Solar cells
A solar cell is one that generates electrical energy. (more)

Solar collector windows
Solar collectors for windows are available in various forms and, in general, generate electricity by collecting energy from the sun similar to solar panels. (more)

Solar energy
Energy from the sun. (more)

Solar hot water heater/collectors
Part of a solar water heating system that allows water to be heated by the sun. (more)

Solar landscaping
Solar landscape lighting is virtually maintenance free, easy to install, and uses the power of the sun to light your garden or walkway. (more)

Solar panel
A device that collects energy from the sun and converts it to electricity. Solar panels are also known as "modules". (more)

Solar panels, photovoltaic (or PV)
Photovoltaic (PV) is a method of converting sunlight into power. Photovoltaic power generation employs solar panels comprising a number of cells containing a photovoltaic material. (more)

Solar shingles
Solar shingles look like typical, durable roofing shingles but provide a dual purpose: They can withstand warm or cold temperatures, wind, hail and inclement weather and also provide clean, renewable energy to your home. (more)

Solar swimming pool heater
You can significantly reduce swimming pool heating costs by installing a solar pool heater. Solar pool heating is the most cost-effective use of solar energy in many climates.  For more information, visit the U.S. Department of Energy website.

Solar water heater
While the initial purchase price of solar water heater is higher in comparison to standard model water heater, they can be cost effective. That’s because the sun’s energy is harnessed to reduce operating costs 50% to 80% according to the US Department of Energy. Solar water heating systems require a conventional water heater as a backup heating source to ensure hot water is available when solar energy is not.  For more information, visit the U.S. Department of Energy Savers website.

Space cooling - Residential savings tips
According to the Department of Energy (DOE), the average residential home cooling costs could be up to 9% of your energy bill. An open fireplace damper, plugged blower filter, drafts around doors and windows, and even flowers and bushes can block the air flow around your outside AC unit, wasting energy and costing you money.  For ways to save, see our residential savings tips. (more)

Space heating - Residential savings tips
According to the Department of Energy (DOE), the average residential home heating costs could be up to 45% of your energy bill. Fireplaces, an old furnace filter, drafty doors and windows are just a few energy users in your home that can play a role in wasting energy and costing you money. For ways to save, see our residential savings tips. (more)

Space heater
A space heater can boost the temperature and comfort of a room instead of turning up the furnace and overheating your entire home and are often used when a central heating system costs too much to install or use. (more)

Spray foam - polyurethane insulation
Spray polyurethane foam (SPF), also known as open cell and closed cell foam, is better than any other type of insulation at reducing air leakage. Foamed-in-place insulation is relatively easy to use but it may be a more expensive way to completely fill walls and ceiling cavities. SPF insulation is ideal for smaller areas, however it can be used to completely insulate a home or building and is better than any other type of insulation to reduce air infiltration. Make sure you understand the pros and cons of using SPF before making your insulation choice. (more)

Standard light bulb
Incandescent lighting has traditionally delivered about 85% of household lighting. Making improvements to your lighting is one of the fastest ways to cut your energy bills. (more)

Standby power
Also known as vampire power, many electronic devices use electricity whenever they are plugged into the outlet, even when they are off!  Most devices use very little energy at one time, but when you add up 24 hours a day, 365 days a year, unplugging the devices when not in use can equal energy savings. (more)

Static electricity
A form of electrical energy that results from an imbalance of positive and negative charges.

Steam trap
A steam trap is an automatic valve found on a steam heating system used to collect the moisture from the steam as it cools back into water. Capturing this very hot water saves energy by not having to heat water from the ground back to a steam temperature. This very, very hot water reaches steam temperature quicker than ground water with a lot less energy needed. (more)

Steamer, food service
Traditional steamer designs incorporate a separate boiler or steam generator to produce steam for the cooking compartment. A typical 6-pan “connectionless” steamer consumes a paltry 1 to 2 gal/h while operating at peak capacity. Replacing a boiler-style steamer with an equivalent sized connectionless steamer could save 174,500 gallons of water per year! (more)

Surge protector/protection
A surge protector, also called a surge suppressor or lightning arrestor, is a device designed to protect electrical equipment from voltage transients (power surges). (more)

Surge suppressant
A surge protector, also called a surge suppressor or lightning arrestor, is a device designed to protect electrical equipment from voltage transients (power surges). (more)

Suppressant
A surge protector, also called a surge suppressor or lightning arrestor, is a device designed to protect electrical equipment from voltage transients (power surges). (more)

Swimming pool pump
A swimming pool pump is one of the largest energy users in the home. You can reduce a pool pump's energy usage by replacing the pump with a smaller or more efficient model or setting your existing pump to run less frequently. (more)


— T —

3D Television
A 3D television projects programing into a realistic three dimensional field. Most 3D televisions use more energy when displaying a 3D image over a 2D image. When making a television selection, be sure to look for ENERGY STAR® label and talk with your electronic expert. (more)

3-way CFL
Three-way CFLs are used in fixtures or lamps with a three-way switch to allow different levels of light. As with all CFLs, these bulbs use less energy than the traditional incandescent bulb. (more)

T-5 lamp
With T-5 lamps, the “T” indicates that the shape of the bulb is tubular, and the last number is the diameter in eighths of an inch. A T-5 lamp has a diameter of 5/8" and is used for commercial energy saving applications and uses an electronic ballast. (more)

T-8 lamp
With T-8 lamps, the “T” indicates that the shape of the bulb is tubular, and the last number is the diameter in eighths of an inch. A T-8 lamp has a diameter of 1” and is used for commercial energy saving applications and uses an electronic ballast. (more)

T-12 lamp
With T-12 lamps, the “T” indicates that the shape of the bulb is tubular, and the last number is the diameter in eighths of an inch.  Traditional T-12 lighting uses more energy and operates with a higher energy using magnetic ballast as compared to the electronic ballast found in a T-5 or T-8 light fixture. (more)

Tankless water heater
Tankless water heaters or demand type water heaters apply the same principle to heating water as standard gas and electric water heaters, but without a storage tank. They save energy by heating water only when needed, eliminating energy lost during standby operation, such as while you are on vacation. (more)

Television
ENERGY STAR certified televisions use about 40% less energy than standard units. You can find the ENERGY STAR qualifying logo on everything from standard TVs, Plasma TVs, LCD, and HD-ready TVs. (more)

Television, 3D
A 3D television projects programing into a realistic three dimensional field. Most 3D televisions use more energy when displaying a 3D image over a 2D image. When making a television selection, be sure to look for ENERGY STAR® label and talk with your electronic expert. (more)

Therm
A unit of heat equivalent to 1,000 large calories or 100,000 British thermal units.

Thermal imaging
Thermography, also known as thermal imaging or infrared technology, is a valuable tool in performing comprehensive energy audits. The technology is used to detect heat or cooling losses around windows, doors, ceilings, through walls, and more. The testing uses a portable camera to capture images of heating or cooling losses for a home or business. (more)

Thermography
Thermography, also known as thermal imaging or infrared technology, is a valuable tool in performing comprehensive energy audits. The technology is used to detect heat or cooling losses around windows, doors, ceilings, through walls, and more. The testing uses a portable camera to capture images of heating or cooling losses for a home or business. (more)

Thermostat
A device that controls the temperature of a heating or cooling system. (more)

Three-D television
A 3D television projects programing into a realistic three dimensional field. Most 3D televisions use more energy when displaying a 3D image over a 2D image. When making a television selection, be sure to look for ENERGY STAR® label and talk with your electronic expert. (more)

Three-way CFL
Three-way CFLs are used in fixtures or lamps with a three-way switch to allow different levels of light. As with all CFLs, these bulbs use less energy than the traditional incandescent bulb. (more)

Timer
A timer can be used on appliances, lighting, and electronics.  Used wisely, it can also be an energy saver and safety unit. (more)

Tinting, window
Window film is a thin layer or coating applied on the inside of any window or glass door to reflect the sun’s heat, keeping the room cooler and saving energy. (more)

Trade ally
A trade ally is a certified contractor approved by Ameren Missouri to assist in our Energy Efficiency program. (more)

Transmission
A term used by utilities relating to movement or transfer of electric energy over an interconnected group, also called grid, of lines or wires to different locations for delivery to consumers. Electricity can also be delivered to other electric utility systems or grid. Transmission is considered to end when the energy is delivered to the end user, the electric customer for their personal use.

Turbine
A device used in the generation of electricity. It has a shaft (like a thick pole) with blades at one end and electromagnets at the other. Water, steam, or wind pushes the blades, making the shaft and the magnets spin very fast. The magnet end is surrounded by heavy coils of copper wire, and the spinning magnets cause electrons in the wire to begin to move, creating electricity.

T.V.
ENERGY STAR certified televisions use about 40% less energy than standard units. You can find the ENERGY STAR qualifying logo on everything from standard TVs, Plasma TVs, LCD, and HD-ready TVs. (more)

T.V. cable box
A set-top box is a cable, satellite, Internet or other device that receives a television signal and delivers that signal to a customer’s television, DVR or sound recording system. Using an older model that is not ENERGY STAR certified will cost you more money to operate. (more)

T.V. set-top box
A set-top box is a cable, satellite, Internet or other device that receives a television signal and delivers that signal to a customer’s television, DVR or sound recording system. Using an older model that is not ENERGY STAR certified will cost you more money to operate. (more)


— U —

Upright freezer
A freezer can be upright or horizontal and is designed to maintain a temperature below freezing for longer storage of perishable food items. If you purchased your freezer before 1993, it may cost you an extra $35 annually on your utility bills compared to a new ENERGY STAR certified model. If you bought your freezer circa the 1980s, it's costing you an extra $70 each year. (more)

Utility
A company or other organization that provides a public service, such as delivering electricity, natural gas, or water.
Learning Center - Terms S, T, U
 
 
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