Building Systems

New Refrigerant Rules Will Have Long Term Impact

Carl Weinschenk

New rules from the Environmental Protection Agency will lead to big changes to equipment that use refrigerants and the codes that govern them.


Athens, OH, Nears $4.28M Retrofit Project

Carl Weinschenk

County commissioners in Athens, OH, approved $4.28 million to upgrade county buildings, according to the Athens Messenger. The story says that the approval is contingent on the ability to get municipal lease financing. Such financing will enable payments to be made from a general fund. Energy savings and reimbursements are expected to pay for most of   …Continue Reading


Put Safety First in LED Installations

Carl Weinschenk

LEDs may seem less dangerous than legacy lighting because they don’t run as hot. That doesn’t mean, however, that great care isn’t necessary.


Better Buildings, Better Plants: 12 Success Stories

Carl Weinschenk

The Department of Energy is encouraging industrial plants to be more energy and water efficient — and industry is listening.


Variable Speed Drives are a Powerful Efficiency Tool

Carl Weinschenk

Motors historically either were on or off. Savvy energy managers can benefit from the fact that this no longer is the case.


Veolia Checks Into the UK’s Tallest Hotel

Carl Weinschenk

Combined heat and power (CHP) is getting quite a boost: When it is finished this autumn, the tallest hotel in the United Kingdom will use CHP to provide heat and hot water. Veolia’s technology will be used at the Novatel London Canary Wharf hotel, which will be 39 stories high and have 313 guest rooms,   …Continue Reading


Breaking the Ice with Thermal Energy Storage

Carl Weinschenk

Clever freezing and thawing of water can lead to significant cuts in peak energy demand.


Ameresco to Upgrade Federal Prison in Butner, NC

Carl Weinschenk

Ameresco announced this week that it has entered into an Energy Savings Performance Contract (ESPC) with the U.S. Federal Bureau of Prisons. Under terms of the contract, Ameresco will install energy and water conservation technology at the 776-acre Federal Correctional Complex in Butner, N.C. The contract is valued at $53.1 million. Ameresco says that the   …Continue Reading


Alpen Introduces Window Package Rated at R10 Insulation

Carl Weinschenk

Alpen High Performance Products has introduced a fixed window package providing an R10 insulation value, the company says. The rating on the ZR10 double-film fixed window design was attested to by National Certified Testing Laboratories and the National Fenestration Rating Council. The windows are eligible for Energy Star certification. The company says that the ZR10   …Continue Reading


HVAC/Lighting Controller from Acuity Brands

Carl Weinschenk

Acuity Brands has introduced the nLight ECLYPSE controller, which combines digital lighting and HVAC controls in a single platform. The platform provides building managers with the ability to configure, monitor and control systems through a single intuitive interface, the company says. The system, which uses the BACnet/IP protocol, is based on the ECLYPSE platform by   …Continue Reading