Power grid and stations

  • GridRobot makes inspecting power lines simple, inexpensive

    Mechanical engineers invented a robot designed to scoot along utility lines, searching for damage and other problems that require repairs. Made of off-the-shelf electronics and plastic parts printed on an inexpensive 3D printer, the SkySweeper prototype could be scaled up for less than $1,000, making it significantly more economical than the two models of robots currently used to inspect power lines.

  • GridAging national power grid leaves U.S. vulnerable to storm-related outages

    In parts of the United States where the grid system is “out in the open” and exposed to the elements — especially in our older cities — the risk increases for widespread power outages as a result of weather-related events, leading to lengthy, costly repairs.

  • Smart gridThe opportunities offered by Smart Grid R&D

    The U.S. aging power grid is evolving into a modern, “smart” energy distribution network, and with these changes comes a host of challenges for the research and development community, two new reports say.

  • EnergyGrid-scale batteries for storing renewable energy have large carbon footprint

    Most of the electricity produced in the United States comes from coal- and natural gas-fired power plants. Only about 3 percent is generated from wind, solar, hydroelectric, and other renewable sources.  A key problem is that the U.S. electrical grid has virtually no storage capacity, so grid operators cannot stockpile surplus clean energy and deliver it at night, or when the wind is not blowing. Stanford scientists have developed a novel way to calculate the energetic cost of building large batteries and other storage technologies for the electrical grid. The found that the fossil fuel required to build these technologies could negate some of the environmental benefits of installing new solar and wind farms.

  • GridU.S. electric power grid “inherently vulnerable” to terrorist attacks: report

    The U.S. electric power delivery system is vulnerable to terrorist attacks which could cause much more damage to the system than natural disasters such as Hurricane Sandy, blacking out large regions of the country for weeks or months, and costing many billions of dollars, says a newly released report by the National Research Council

  • GridThe world’s first circuit breaker for high voltage direct current (HVDC) will enable future DC grid

    A Swiss company solves a 100-year-old electrical engineering puzzle by developing the world’s first circuit breaker for high voltage direct current (HVDC); it combines very fast mechanics with power electronics, and will be capable of “interrupting” power flows equivalent to the output of a large power station within 5 milliseconds – this is thirty times faster than the blink of a human eye; the solution will help shape the grid of the future

  • GridOne solution to the aging U.S. grid: microgrids

    Most Americans do not have to think much about energy reliability; they plug in a computer and it powers up; they flip a switch and the lights come on; while very reliable today, the U.S. electricity grid is old and has gone at least five decades without a significant technological upgrade. The U.S. Department of Energy’s National Renewable Energy Laboratory  is working with industry on one solution to help maintain a secure, reliable flow of energy: microgrids

  • Infrastructure protectionNew system could predict solar flares, give advance warning to help protect power grids

    Researchers may have discovered a new method to predict solar flares more than a day before they occur, providing advance warning to help protect satellites, power grids, and astronauts from potentially dangerous radiation

  • GridConcerns about U.S. grid grow along with demand for power

    The U.S. grid is stretched to capacity and severely outdated; some experts fear that blackouts in the past years in New York, Boston, and San Diego will become more frequent in the near future unless a multi-billion dollar overhaul is worked out

  • GridHigh temperature superconducting cables for electricity grids

    Power grids around the world are reaching their limits at the same time that electricity demand is growing. European researchers developed and tested one of the first superconductor-based cables to address the issue; high temperature superconducting (HTS) cables have gained attention in the last couple years as a solution to the shortage of transmission capabilities

  • Europe’s gridA 10-year plan for Europe’s grid

    A new study shows that 104 billion euro over ten years need to be invested in the refurbishment or construction of roughly 52,000 km of extra high voltage power lines and cables across Europe in order to add 3 percent generation capacity and the reliable integration of 125 GW of renewable energy sources

  • Smart gridSmart grid: from deployment to applications

    Some 200 million smart meters have been deployed worldwide, forty million of them in North America; a new white paper from Pike Research says that the year 2012 represents a turning point for the sector

  • Smarter powerNew material to improve efficiency of power grids

    Global energy demand is on the rise, as populations continue to grow and industrialization progresses; at the same time, there is a growing awareness and concern about repercussions of increasing rates of carbon dioxide emissions released in the atmosphere; a new nanocomposite material holds the promise of enabling smarter, more reliable, and greener power systems

  • Nuclear powerNRC approves first new nuke reactors since 1978

    For the first time since 1978, U.S. nuclear regulators have approved the construction of a new nuclear power plant; the Nuclear Regulatory Commission (NRC) recently voted four-to-one in favor of granting Southern Co. a license to build two additional reactors at its Plant Vogtle nuclear facility near Augusta, Georgia

  • CybersecurityCritical flaws in SCADA give hackers edge

    In an effort to improve critical cybersecurity flaws in industrial control systems, last week researchers released exploit modules that take advantage of security gaps in six major control systems, but in doing so, have made it easy for hackers to infiltrate these systems as none of them have been patched or taken offline