Avista Corporation uses the latest energy saving technologies
while achieving comfort, efficiency, and functionality.

The Client: Avista Utilities
Their Business: Avista Utilities' primary market area covers more than 30,000 square miles, with energy generation, transmission, and distribution facilities in five western states.
The Space: Traditional conference room served by a high pressure dual duct air handling system, lighting was standard F-40 fluorescent lighting systems with mechanical ballasts
The Goal: Renovate the space to create a comfortable, quiet, ergonomic, functional space that supports a variety of usage & widely varying occupant loads using the most energy efficient technologies available

Technology Highlights

Chilled ceiling Cools the space using radiant technology Removes heat from inside the space. Heat is rejected into the hydronic loop through the building mechanical systems Draft free comfort, quiet, energy efficient (cooling is radiant, not delivered traditionally via high volumes of supply air)
Dimmable direct & indirect T8 Lighting Low energy controllable lighting Wide light spectrum, low energy consumption, varying light levels Light quality, lack of flicker, adjustable light levels and affect
Compact fluorescent sconces & dimmable compact cans Low energy accent lighting Wide light spectrum, low energy consumption, compliments other lighting sources Light quality, low energy use, extensive lighting options when used alone, or in combination with main lighting

The following illustrates the technology room prior to, and after, the retrofit:

Chilled Ceiling Features & Benefits

Radiant technology provides quiet, even comfort throughout the space served. This technology operates using significantly less energy than traditional forced air systems. Air volumes designed for the specific purpose of delivering cool air into the space is eliminated. Without these significant air volumes, noise and drafts are eliminated. In commercial buildings subject to periodic remodeling, re-zoning becomes simple. Added loads can also be supported easily by adding more active tiles to the zone. The active radiant tiles weigh less than 2.2 pounds per square foot which means standard commercial ceiling grid structures will support the weight. Digital control technology provides the accuracy needed to control the space within one degree and eliminates the risk of condensation by using integrated moisture sensors.

Radiant ceiling design on the left. Thermal image of the activated radiant ceiling in use on the right. The red image is the heat from the lights, the blue image is the cool temperature of the ceiling.

For more information about Avista Utilities, click on the following link: www.avistautilities.com. For further information about the radiant technology used to cool this space you may contact us by clicking the link below.