Building Systems

The Boulder Valley School District Goes Big on Energy Efficiency

Carl Weinschenk

A multiyear, multiphase project will cut energy use about as far as it will go.


Wattstopper LED Sensor from Legrande

Carl Weinschenk

Legrand North America’s new Wattstopper DW-311 Dual Technology 0-10V Dimming Wall Switch Occupancy Sensor complies with building and energy codes to provide LED dimming, the company says. The target is medium-sized applications such as rooms with partitions, rest rooms, large offices, conference rooms with cubicles and classrooms, the press release says. Wattstopper technology combines passive   …Continue Reading


Using the Environment for Cooling

Carl Weinschenk

Airside energy efficiency, which makes use of something that is free, is especially valuable in cool environments.


Energy Efficiency Rules at Issue in Columbia, MO

Carl Weinschenk

There traditionally has been tension between landlords and owners on one side and tenants on the other. This is true in both the commercial and residential sector. The basic question is the extent to which the landlord must make improvements that benefit the tenants. Improvements require capital investment which, of course, is a disincentive to   …Continue Reading


Energy Efficiency Goes Hand in Hand with Renewable Certification Efforts

Carl Weinschenk

LEED, the WELL Building Standard and BREEAM are important because they save energy, improve owners’ images and allow higher rents to be charged. Energy managers are on the front lines of implementation.


Acclaim Introduces LED Driver

Carl Weinschenk

Acclaim Lighting has introduced the AL Driver 400, a multi-protocol 400 watt driver aimed at low-voltage LEDs. The company says that the input control protocols are DMX, RDM, 0-10V and DALI. The device also has six pin terminals for PWM outputs. The AL Driver 400 supports input voltage between 100 and 277 VAC and has   …Continue Reading


User: Ice Storage Slashes Electricity Costs

Carl Weinschenk

Freezing water at night and using it for cooling the next day drastically cut how much one company spends on air conditioning.


Energy Performance Contracts Facilitate Big Changes for CA School District

Carl Weinschenk

The Hacienda la Puente Unified School District in Industry City is working with Schneider Electric on a six-year, four-phase project.


Trane Introduces Water-Cooled Chiller

Carl Weinschenk

Trane has introduced the Series R RTWD water-cooled chiller, which is aimed at commercial and industrial buildings in North America and the Middle East. The series R RTWD, according to TRANE, is the newest entry in the EcoWise portfolio. It offers ease of installation and energy efficient operations, the company says. The chiller can operate   …Continue Reading


Jackson, MS, Replacing Lights

Carl Weinschenk

Jackson, Mississippi has announced the first phase of an energy efficiency project. The Mississippi Link says that the project is aimed at improving lighting on some city streets and city buildings while, at the same time, reducing energy use and saving operational and maintenance costs. The project will use what the story refers to as   …Continue Reading