1Q 2019

DC Power for Energy Efficient Buildings

DC Building Power Supply Equipment and Distribution Infrastructure: Global Market Analysis and Forecasts

Alternating current (AC) power is nearly ubiquitous, as conventional power grids supply AC power to commercial buildings and other users. However, certain categories of devices require direct current (DC) power. To provide DC power from an AC grid, these devices rely on internal or plug-in power supplies that convert power from AC to DC and step down voltage to the appropriate level. This conversion process results in an incremental loss of power due to inherent inefficiencies. When added together across numerous devices, the total power loss becomes more substantial.

DC offers better energy savings and improved reliability integrating DC-native resources and loads. Deployed at the building level, DC power distribution can reduce the number of required conversions, thereby increasing overall building energy efficiency. DC power systems rely on centralized, higher efficiency devices to convert AC to DC power and then distribute low- to mid-voltage DC power to various loads, including lighting, sensors, door locks, plug-in devices, actuators, controls, and more. The advantages of DC power systems become clear when considering the integration of renewable energy generation and energy storage systems.

This Navigant Research report considers the likely trajectory of markets for DC power technologies in commercial buildings as existing technologies mature and penetrate new regional markets. The study accounts for new technologies completing development cycles and moving into commercialization. Global market forecasts for revenue segmented by technology type and region extend through 2028.

Pages 34
Tables | Charts | Figures 12
  • Why should building owners consider deploying direct current (DC) power systems in buildings?
  • What are the benefits of DC power systems in buildings?
  • What are the market barriers for DC power systems in buildings?
  • What is the global forecast of DC solutions in buildings by region and technology type over the next 10 years?
  • Building owners and managers
  • Building contractors, architects, and engineers
  • Building power system and distribution infrastructure providers
  • Government agencies
  • Investor community
1. Executive Summary
1.1   Overview
1.2   DC Power Technologies
1.3   Market Forecasts
2. Market Issues
2.1   Introduction 
2.1.1   History of AC and DC Power
2.1.2   DC vs. AC 
2.2   Mid-Voltage DC for Buildings
2.3   Power Systems in Buildings
2.4   DC Building Market Points of Entry
2.5   Benefits of DC Power
2.5.1   Energy Efficiency and Conversion between AC and DC
2.5.2   Advantages of DC Distribution
2.5.3   Safety Benefits 
2.5.4   Synchronization
2.6   Market Drivers 
2.6.1   Push for Energy Efficiency 
2.6.2   Proliferation of PoE
2.6.3   Green Buildings, Zero Net Energy Buildings
2.6.4   Renewable Energy Integration
2.6.5   Microgrids in Developing Regions 
2.6.6   Cost Savings
2.7   Market Barriers
2.7.1   Strong Market Inertia for AC Power
2.7.2   Lack of DC-Ready Devices
2.7.3   Safety and Fault Protection
2.7.4   Need for Standardization 
2.8   EMerge Alliance
3. Technology Issues
3.1   Introduction 
3.2   DC Building Power Supply Equipment
3.3   DC Distribution Infrastructure
4. Market Forecasts
4.1   Market Assumptions
4.2   Global Forecast by Technology Type
4.3   Forecast by Region
4.3.1   North America
4.3.2   Europe
4.3.3   Asia Pacific
4.3.4   Rest of World
4.4   Conclusions and Recommendations
5. Acronym and Abbreviation List
6. Table of Contents
7. Table of Charts and Figures
8. Scope of Study, Sources and Methodology, Notes



  • DC Building Technologies Revenue by Region, World Markets: 2019-2028
  • DC Building Technologies Revenue by Technology Type, World Markets: 2019-2028
  • DC Building Technologies Revenue by Technology Type, North America: 2019-2028
  • DC Building Technologies Revenue by Technology Type, Europe: 2019-2028
  • DC Building Technologies Revenue by Technology Type, Asia Pacific: 2019-2028
  • DC Building Technologies Revenue by Technology Type, Rest of World: 2019-2028
  • IEEE PoE Standards
  • Solar DC Arc Fault Example
  • DC Building Technologies Revenue by Region, World Markets: 2019-2028
  • National Electrical Code (NEC) Circuit Classifications
  • DC Building Technologies Revenue by Technology Type, World Markets: 2019-2028
  • DC Building Technologies Revenue by Technology Type and Region, World Markets: 2019-2028
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