When hackers turn out the lights
The development of the smart power grid and the smart meter in our homes to accompany it brings several benefits, such as improved delivery and more efficient billing. Conversely, any digital, connected technology also represents a security risk. Writing in the International Journal of Smart Grid and Green Communications, UK researchers explain how a malicious third party that hacked into the metering system could manipulate en masse the data being sent back to the smart grid and perhaps trigger a power generation shortfall.
Carl Chalmers, Michael Mackay and Aine MacDermott of Liverpool John Moores University, explain how the implementation of the smart grid brings many improvements over the traditional energy grid by making use of the vast interconnected infrastructure that allows two-way communication and automation throughout the entire grid, from generator to consumer and back.
“A smart grid is a complex modern electricity system which utilises sensors, monitoring, communications, and automation, to improve the electricity system,” the team writes. “Smart grids fundamentally change the way in which we generate, distribute and monitor our electricity. They dramatically improve the efficiency, flexibility and reliability of the existing electricity infrastructure,” they add.
The researchers point out that a critical difference between the old “passive” electricity grid and the new smart grid, is the presence of the advanced metering infrastructure (AMI) which provides the two-way communication between consumer and generator. The flow of data between consumers and generators allows the power generation companies to match demand with generation, to spot patterns in changing demand on a day to day basis or through the changing seasons and more.