California aims to generate electric power from traffic congestion

California is planning a US$2.3 million initiative that will generate electrical power from traffic, according to the San Francisco Chronicle. The California Energy Commission recently voted to fund two piezoelectricity projects, which convert pressure into power. One pilot will test a 200-foot-long piece of asphalt on UC-Merced’s campus, which is designing a 200-foot stretch of asphalt that will be sowed with inch-wide piezoelectric generators, which will be stacked within arrays below the road where it is
April 20, 2017 Read time: 2 mins
California is planning a US$2.3 million initiative that will generate electrical power from traffic, according to the San Francisco Chronicle. The 4259 California Energy Commission recently voted to fund two piezoelectricity projects, which convert pressure into power.


One pilot will test a 200-foot-long piece of asphalt on UC-Merced’s campus, which is designing a 200-foot stretch of asphalt that will be sowed with inch-wide piezoelectric generators, which will be stacked within arrays below the road where it is hoped they will convert the force of passing cars into a small electrical charge.

The resulting electricity could be used to power nearby lights and signs, stored in batteries or sent to the grid, Sun said. The more traffic there is, and the heavier the vehicles are, the more power can be created. Some state estimates suggest that just 400 cars an hour would need to pass over the arrays to make them economically viable.

The second experiment will be built by the San Jose green technology company Pyro-E. The company's technology is expected to generate enough power to supply 5,000 homes using less than a half-mile of piezoelectric highway.

Both pilot programs are expected, within two to three years, to be able to give California officials an idea whether the effort should be expanded. By developing new technologies like piezoelectricity, the Energy Commission is looking to help meet the Legislature’s target of producing 50 per cent of the state’s power from renewable sources by 2030.

For more information on companies in this article

Related Content

  • Turning information into stories
    April 16, 2018
    IBTTA says its TollMiner tool can transform transportation planning. Here, the tolling organisation explains how it works – and what part it might play in Donald Trump’s infrastructure plan. Imagine being able to turn the black-and-white numbers in a spreadsheet into graphics and visualisations that tell a compelling story about essential transportation infrastructure. Having easy access to the solid, reliable data you need to plan surface transportation projects and assign project resources based on
    Read More
  • Delivering accurate vehicle identification
    August 1, 2012
    In the Netherlands, TNO, the independent research organisation, has been engaged in a project on behalf of the RDW, the Dutch vehicle registration and licensing authority, intended to look at the feasibility of using electronic means to make vehicle identification more accurate and less susceptible to fraud. Electronic Vehicle Identification (EVI) has been in existence in various forms for several years now but TNO was tasked with finding out whether OnBoard Unit (OBU)-based applications could be complement
    Read More
  • London suburb installs on-street EV charging
    July 17, 2015
    Electric vehicle (EV) charging solutions provider, APT Technologies has supplied and installed three of its very latest Tri-Rapid Chargers at sites in Shoreditch, Dalston and Hackney Central in London. Charging at 43kW AC power and 50kW DC power, the highly efficient Tri-Rapid Chargers have an eight-inch LCD screen ensuring simple user interaction, real-time consumption data and a constantly refreshed charging cost, measured on a pay-as-you-go basis. A sub-15 minute charging time ensures a fast and e
    Read More
  • Washington, DC, tops list of gridlocked US cities
    August 26, 2015
    The 2015 urban mobility scorecard for the US, published jointly by the Texas A&M Transportation Institute and Inrix, indicates that urban areas of all sizes are experiencing the challenges seen in the early 2000s and population, jobs and therefore congestion are increasing. The US economy has regained nearly all of the nine million jobs lost during the recession and the total congestion problem is larger than the pre-recession levels. Cities of all sizes are experiencing the challenges last seen before t
    Read More

Highlighted Content