DC Building Power: Economic Factors, Application Drivers Now on ReportsandReports

The dc building power market is projected to grow significantly over the next several years, and among the driving forces is the need to improve efficiency and reduce electricity costs in several areas.

Online PR News – 14-April-2010 – – Dallas, TX: ReportsandReports announce it will carry the DC Building Power: Economic Factors, Application Drivers, Architecture/Technology, Standards and Regulatory Developments Market Research Report in its Store.

The dc building power market is projected to grow significantly over the next several years, and among the driving forces is the need to improve efficiency and reduce electricity costs in several areas. According to the US Environmental Protection Agency (EPA), in 2006, data centres and servers in the United States accounted for approximately 1.5% of the nation’s total electricity consumption. To put this in perspective, the EPA stated that this total exceeded the electricity consumed by the entire nation’s colour televisions, and is similar to the amount of electricity consumed by approximately 5.8 million average TV households. In addition, energy consumption in data centres in the US is projected to continue to grow, and double every five years.

Traditionally, large data centres and telecommunications facilities have consumed large amounts of electricity without much regard for energy efficiency. Due to the continuous need for energy production, it has been an acceptable practice to trade off energy efficiency and operating costs for the sake of system reliability. However, in recent years a number of factors have emerged that may change that practice. Now, a debate is taking place on how to cope with the growing need for electricity to power these facilities. Data centre managers and other data centre professionals are looking to dc power as an alternative solution to traditional ac power. Proponents of dc power claim that it has the potential to eliminate the biggest sources of energy loss and waste in traditional ac systems: the multiple back and forth transformations and conditioning needed to step voltage down for use by IT equipment.

One of the pressing needs for the further expansion of dc power was the establishment of dc voltage standards. In light of this need, two new dc power distribution standards for facilities were developed over the past year, one for high-voltage (380Vdc) applications and another for low-voltage (24Vdc) applications. The development of theses standards is significant and is expected to contribute to the further expansion of dc power. The 380Vdc standard was developed by the Electric Power Research Institute (EPRI) along with Lawrence Berkeley National Laboratories and is designed for data centres and other critical facilities. EPRI has developed the first dc voltage tolerance envelope plotting voltage variations versus time for 380-Vdc powered equipment. The new dc voltage tolerance envelope provides the technical details of the electrical operating environment, including allowable voltage surges and sags that could enable engineers to design power converters for use with 380-Vdc distribution systems for next-generation data centre equipment.

The 24Vdc standard was developed by EMerge and is expected to play an important role in the expansion of dc power in commercial, industrial and residential buildings. The new EMerge Alliance standard is described as the first roadmap for the utilization of safe, low-voltage direct current power in commercial interiors. The EMerge Alliance Standard 1.0 establishes a more efficient means of powering the rapidly increasing number of digital, dc-powered devices, such as sensors, lighting and IT equipment found in today’s workplaces. It creates an integrated, open platform for power, interior infrastructures, controls and a wide variety of peripheral devices to facilitate the hybrid use of ac and dc power within buildings.

As the emergence of the EMerge Alliance standard suggests, dc power can be used to improve efficiency at the lower-voltage levels. The addition of dc power delivery systems to homes, office building and commercial facilities offers the potential for significant improvements in energy delivery efficiency, reliability, power quality and cost of operation. Most of these facilities are currently dominated by fixed overhead lighting, and a variety of electrical devices that are typically wired for the building’s lifetime rather than the occupant or residents evolving needs. In fact, although opportunities exist in both new installations and retrofits, according to the EMerge Alliance, 80% of the market opportunities are in the updating and retrofitting of commercial buildings. Actually, the ability to distribute low-voltage dc power within common infrastructures is already present in most commercial interiors

Lighting presents one of the major opportunities for the further development of dc power. According to a recent study funded by the U.S. Department of Energys Energy Efficiency and Renewable Energy Office (DOE EERE), lighting accounts for 22% of all electricity consumed in the United States. Commercial businesses consume 20% to 30% of their total energy just for lighting. And, 50% or more of that lighting-related energy may be wasted by obsolete equipment, inadequate maintenance or inefficient use. Upgrading lighting systems is one of the best energy efficiency investments available to a commercial facility. Since linear fluorescent light accounts for the majority of a commercial building's lighting energy use, improving the efficiency of these systems can save significant amounts of energy and money.

In addition to advances in dc power for data centres, new advances in solid-state lighting (SSL) are among the market forces expected to drive the dc power market over the next several years. The era SSL will be arriving soon, primarily powered by ultra-high-efficiency light emitting diodes (LEDs) and to a lesser extent by organic light emitting diodes (OLEDs). Used in large high-definition signs, architectural lighting, stadiums, billboards and other applications, modern LEDs represent the latest lighting devices based on dc power. In fact, current economic conditions are just right for the emerging LED replacement market. Several factors cited for this include “dramatic” improvements in commercially available LED performance, significant cost reduction, government regulations, and energy savings.

Topics Covered:

- Current Areas of Development
- Additional Applications and Drivers of DC Power
- Organizations and Alliances Involved in DC Power
- DC Power and Alternative Energy Systems
- Barriers, Challenges and Threats to the Adoption of DC Power
- Architectural and Technology Trends and Developments
- Cost Dynamics of DC Power
- Policy and Regulatory Framework for Development
- Recent Developments and Products

Table of Content:
Current Areas of Development
Data Centers
AC Powered Data Centers
DC Powered Data Center Demonstrations
Current DC Data Center Facilities
Commercial, Industrial and Residential…..

Additional Applications and Drivers of DC Power
Consumer Devices
Power-over-Ethernet (PoE)
Uninterruptible Power Supplies (UPS)
Variable Speed Motors
Intelligent Universal Transformers
Electric Vehicles
Energy Storage

Organizations and Alliances Involved in DC Power
Emerge Alliance
Electric Power Research Institute (EPRI)
European Telecommunications Standards Institute (ETSI)
International Electrotechnical Commission (IEC)
The Green Grid
DC Power Partners
International Telecommunications Union
Underwriters Laboratory (UL)

DC Power and Alternative Energy Systems
Alternative Sources of Energy
Wind Power
Fuel Cells
Distributed Generation
Green Power Activity

Barriers, Challenges and Threats to the Adoption of DC Power
Availability of UL-Related Equipment
Arc Flash
Circuit Protection Concerns
Experienced DC Electrical Personnel
Increased Awareness of DC Power Distribution
High Voltage AC Power

Architectural and Technology Trends and Developments
Selection of DC Voltage Levels
Electrical Connections and Safety Perceptions
DC Microgrids
Hybrid AC-DC Systems

Cost Dynamics of DC Power
Reduced Part Count and Footprint
Cost Savings

Policy and Regulatory Framework for Development
Standards and Regulations
Adoption of Feed-in Tariffs
Direct Subsidies and Tax Incentives
Legislative Policies and initiatives

Recent Developments and New Products

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