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Green Homes Special Series: Part Twelve: Home Controls

The rapidly evolving home technology industry can help make your home greener by making it more energy-efficient.
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Control4, based in Salt Lake City, Utah, uses technologies such as ZigBee, WiFi and Ethernet standards and Linux to increase integration of existing systems

A collage of Control4 controls © Control4
A collage of Control4 controls © Control4
and to reduce the overall cost of ownership.

“Digital households are overflowing with feature-rich gear and media that should work together but rarely do,” says CEO Will West. By developing standards-based products instead of proprietary, Control4 provides home automation solutions that tackle the problem of too many remote controls and disparate digital gadgets with no connectivity standards.

Evolving Market

Home controls can be as simple as a timer plugged into a receptacle that controls outside lights. Systems typically are set up as structured wiring, wireless solutions or a combination of the two.

Structured wiring. It involves installing special wiring packages to carry voice, data, video and more throughout a house. It can accommodate broad bandwidth home entertainment needs or activities that require greater security. Because wires must be run through walls, this option is typically used in new homes or in major remodeling jobs.

Wireless. These systems can be used in existing or new homes. One system might transmit signals over a home’s electric lines through wired-in sensors while another may use radio frequency signals to transmit commands to accommodating devices or another may operate as standard ethernet-based technology. Although wireless might run into interference and control issues, the technology is improving.

Compatibility. Learn which devices are compatible with which systems. There are systems based on proprietary protocols such as Z-Wave developed by the Danish company Zensys and the Z-Wave Alliance as well as systems such as ZigBee based on the standards set by the Institute of Electrical and Electronic Engineers (IEEE), a professional organization. While each may have many interoperable devices, it is important that consumers understand their options and differences.

Koenig says that among solutions starting to manifest in the marketplace are products in the area of time of use, which allow homeowners to schedule power usage. Typically, electric use peaks in the morning when everyone gets ready for work and again in the evening when everyone returns home and turns on their televisions. He says one marketplace solution is a home battery that can draw its power during non-peak—and less expensive—periods and supplement a home’s needs during more expensive peak hours.

HAI is also working in this area. It has pilot projects under way with select utilities, such as Alabama Power near Birmingham, to offer customers smart meters that measure the amount of electricity flowing into a home in real time. “We want the consumer to be able to have devices that let them automatically take advantage of utility rates when they are lower. Consumers could select the cycling of their heating or cooling systems, setting them back or even turning them off,” says HAI’s McLellan.

Home monitors also are of interest. Control4’s 4Sight Internet Service gives homeowners the ability to securely monitor and control their home from any Internet connection. It includes email alerts for events that a person may want to monitor in their home such as a garage door left open or a water leak in the basement. HAI plans to introduce a device that will detect HVAC factors that might otherwise go unnoticed and alert the homeowner. HAI’s McLellan says that often “people might think that an increase in their utility bill is just related to higher prices. But it could be something as simple as a small freon leak, coils that need to be cleaned or a filter that needs to be changed.”

CEA’s Koenig says, “It’s a nascent market that is evolving rapidly. Home controls and content distribution were limited to new construction with dedicated runs. Now that is all changed with wireless and scalable solutions.”

Read other Green Homes Special Series articles here.

Text by Maureen Blaney Flietner
© 2008 BobVila.com

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