Sophisticated ‘Air Gap Microgrids,’ Invisible to the Utility

air gap microgrids

'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

DC microgrid

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...]

DC Coupled Solar Plus Storage

There is a lot of talk about solar plus storage. Yet, it's important to know that by adding energy storage with a DC-to-DC converter you can maximize production & profits of installed North America PV base. Traditional storage plus solar (PV) applications have involved the coupling of independent storage and PV inverters at an AC bus, or … [Read more...]

DC Microgrid System

DC microgrids

How can we increase the amount of photovoltaic (PV) generation? From this viewpoint, we are overviewing elec- tric facilities from power plants to electric appliances in demand sites. PV modules generate DC electric power. The power should be converted to AC that is synchronized with commercial grids to be transmitted and distributed to demand … [Read more...]

Oil Production with DC Microgrids

Of all the world’s many industries, gas exploration and oil production (E&P) activities are arguably the most ripe for automation given two reasons: First, technology advancements have far outrun their adoption by an industry that historically has preferred what it considers time-tested oil production methods – even if those include … [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...]