Alternating current (AC) beat out direct current (DC) because it worked well over short distances. But direct current is significantly easier to control on a smart grid and travels better, says Herman J. Trabish.
Trabish talks with Aftab Khan, Vice President and General Manager of U.S. Grid Systems, about why DC will be a big part of the country's smart grid:
"Power on a DC line is completely controlled. If you say, 'I want to bring power from point A to point B and I want exactly this many megawatts on that line,'" Khan said, "the power goes." Theoretically, he added, AC lines can do the same. But in an AC system, "you don't have the ability to manage the power flow from point A to point B directly."
High-voltage direct current (HVDC) lines are currently in use in China, delivering hydroelectric current from remote resources.
FULL STORY: Will Solar, Wind and New Tech Pave the Way for a DC Renaissance?
A New Texas Neighborhood is Powered by Geothermal Energy
The 7,500-home development claims to be Austin’s ‘first zero energy planned community.’
Integrating Human Rights Into Energy and Extractive Sector Transitions
Why just transition efforts must move beyond economic considerations by embedding human rights principles into business practices to ensure equitable, transparent, and accountable outcomes for affected communities and workers.
Bringing Community Voices Into Renewable Energy Planning
The MIT Renewable Energy Clinic helps coastal communities navigate the complexities of offshore wind development through neutral, inclusive engagement that surfaces local concerns and supports fair decision-making.
Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.
Maui's Vacation Rental Debate Turns Ugly
Verbal attacks, misinformation campaigns and fistfights plague a high-stakes debate to convert thousands of vacation rentals into long-term housing.
Restaurant Patios Were a Pandemic Win — Why Were They so Hard to Keep?
Social distancing requirements and changes in travel patterns prompted cities to pilot new uses for street and sidewalk space. Then it got complicated.
In California Battle of Housing vs. Environment, Housing Just Won
A new state law significantly limits the power of CEQA, an environmental review law that served as a powerful tool for blocking new development.
Boulder Eliminates Parking Minimums Citywide
Officials estimate the cost of building a single underground parking space at up to $100,000.
Orange County, Florida Adopts Largest US “Sprawl Repair” Code
The ‘Orange Code’ seeks to rectify decades of sprawl-inducing, car-oriented development.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Heyer Gruel & Associates PA
JM Goldson LLC
Custer County Colorado
City of Camden Redevelopment Agency
City of Astoria
Transportation Research & Education Center (TREC) at Portland State University
Jefferson Parish Government
Camden Redevelopment Agency
City of Claremont