as standard office spaces. With such large power consumption, they are prime targets for energy efficient design measures that can save money and reduce electricity use. However, the critical nature of data center loads means that efficiency must compete with many other design criteria -- chiefly reliability and high power density capacity. The most efficient and effective data center designs use relatively new design fundamentals to create the required high energy density, high reliability environment. Emerging best practices capture many of the new 'standard' approaches used as a starting point by successful and efficient data centers.
- e-News #92: Evolution of LEED v4
The U.S. Green Building Council has unveiled the latest version of its Leadership in Energy and Environmental Design (LEED®) Rating System.
LEED v4 sets the bar higher for manufacturers of building materials, encouraging them to reduce environmental impacts and health hazards associated with material ingredients. Rating systems have been adapted for twenty-one additional market sectors that formerly faced barriers to LEED certification, including data centers, warehouses & distribution centers, and hospitality. LEED v4 introduces several new concepts, including IDP, BUG, LCA, EPD, and HPD. If these acronyms are not in your LEED lexicon...
- e-News #91: Title 24 2013 Update
to improve the energy performance of new and existing buildings. In addition to increased stringency, the Standards have increased in scope to include requirements for covered processes -- data centers, laboratories, kitchen exhaust systems, parking garages -- and they have increased in extent to include commissioning requirements and
additional acceptance test requirements for systems and components. A few of the many key changes to the 2013 Standards follow.
- Trigger Sheet: Nonresidential HVAC Built-up Alterations
Trigger Sheets: This handy trigger sheet summarizes sections of Title 24, Part 6 energy code that are triggered based on project scope. The sections indicated on these trigger sheets can help identify energy code requirements for your project.
- e-News #90: Fuel Cells
. A fuel cell is a device that converts the chemical energy from a fuel – most commonly hydrogen – into electricity through a chemical reaction with oxygen or another oxidizing agent. Although many might think of fuel cells as batteries, they are not. Fuel cells require a constant source of fuel and oxygen to operate, and they can produce electricity for as long as fuel and oxygen are provided.
- e-News #82: Data Center Efficiency
of many hi-tech industries but a consequence of their rapid increase in capacity is greater consumption of energy and resources, and increased greenhouse gas emissions.
- e-News #74: Combined Heat and Power
or it may be old and inefficient. Either way, the electricity used in the building will likely be produced with inherent inefficiencies. The efficiency of fossil fuel based electricity production averages 34% (although new combined cycle plants can exceed 50% efficiency). The ultimate efficiency of any building pulling electricity from the grid is limited by that number.
- Design Brief: Chiller Plant Efficiency
to install and more complicated to operate, a chiller plant offers a number of benefits over simple packaged cooling units, including greater energy efficiency, better controllability, and longer life.
- Design Brief: Energy Efficiency Practices in Industrial Refrigeration
In new construction projects, significant energy
savings can be achieved by incorporating energy efficiency
technologies in the project design. For facilities being expanded
or upgraded, ensuring the efficiency of the refrigeration systems
can lead to significant energy savings without compromising
- Design Brief: Industrial Process Heat Recovery
in the industrial and
manufacturing sectors, and it often results in a large amount of
waste heat that is discharged into the atmosphere.
- e-News #47: Lowering the Energy Use of Data Centers
the performance of the information technology equipment housed in
data centers. But are the facilities themselves, and the mechanical
systems that serve them, demonstrating similar leaps in