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DC Lighting & Renewable Power Information



DC Technology

DC Lighting

  • Innovation and lower cost are driving the DC lighting market.


  • Minimizing power conversions can save energy in any electrical system, and LED lighting is a good match for a DC grid and also renewable energy such as solar power in green buildings.

Applications & Uses

DC Microgrid

Simplified depiction of (a) a typical AC building microgrid and (b) a typical DC building microgrid.

  • THERE ARE several factors driving local, regional, and national electricity distribution towards direct current (DC).
  • Ken Erdmann of Erdmann Electric discusses a DC powered home.

DC Powered Buildings

  • The forthcoming revolution of DC electrical infrastructure for commercial and residential buildings
  • Purdue house runs entirely on DC power: efficient nano-grid can be powered by solar panels, batteries or local utilities


  • Watch Cal Poly team build DC powered community center and ice production center in Ghana (see Marshall lighting fixture in action at 2:14 of video).
  • In just five years Papua New Guinea has achieved dramatic growth to become a leader among developing countries in the use of off-grid solar products.
  • PNG has one of the highest rates of use of off-grid solar lighting in the developing world.

DC Backup & Grid Resiliency

  • The bipartisan infrastructure bill — which mentions microgrids five times — would pump billions of dollars into the US grid, partly to bolster reliability and resilience.
  • 44% of respondents have considered investing in microgrids for their facility.
  • 54% of those respondents those who expressed interests in microgrids did so because of critical operations that require uninterrupted power supply.
  • The utility-scale battery located outside of Houston will connect to the same grid that faltered in February’s freeze.
  • A battery that size could power about 20,000 homes on a hot summer day.
  • The Department of Homeland Security issued a report on China’s ability to conduct an electromagnetic pulse (EMP) attack on the United States.

Learn More About DC Lighting, Power, Grids, & Renewables

A global off-grid resource

And advocate for clean energy in California communities

American Institute of Architects

Organization that promotes greater use of Direct Current

Your renewable energy news source for India.

“DC Lighting – Empowering Grid Resiliency” TM