Sophisticated ‘Air Gap Microgrids,’ Invisible to the Utility

'Air gap microgrids' -- DC microgrids electrically separated from the utility -- open up the opportunity for installing and adapting microgrids with fewer permitting requirements and less strain on the utility’s grid system. North American microgrids are normally connected to the grid with AC coupling. Each item of equipment in the … [Read more...]

Cold Beer, Hot Shower — Off Grid in Virginia with All the Comforts

Alexis Zeigler describes Living Earth Farm, a conservationist-oriented community in rural Virginia where a DC microgrid provides reliable energy, fossil-fuel free. It's been a windy spring in the Mid-Atlantic. Our neighbors have lost power several times, including a multi-day outage that caused vexation and set the generators abuzz. I live … [Read more...]

Bosch to Demonstrate DC Microgrid at Honda in California

In hopes of paving the way for large-scale use of DC microgrids in California, international tech giant Robert Bosch plans to install a demonstration project at an American Honda Motor parts distribution center. Bosch's aim is to show that its building-scale DC microgrid more effectively integrates renewables than a conventional AC-based … [Read more...]