Interference to Remote Electric Meters
A researcher in northern Sweden says low energy devices are increasingly interfering with remote electrical meters.
Swedish power companies have been installing more and more metering that can be monitored remotely rather than requiring an employee to visit residences to read the meters. Some use the electrical or mobile telephone networks, others work over radio or broadband.
But electrical researcher Martin Lundmark at the Luleå University of Technology tells the newspaper “Västerbottens-Kuriren” that new low energy devices, from lamps to computers and TV sets, can interfere with the remote meter reading, especially those using power lines. He says the interference gets worse as low energy devices get more efficient.
Since July 1st, Swedish electrical customers have had the right to have their meters read once a month, which has led to the power companies choosing to expand their remote monitoring technology. In the northern city of Umeå alone, more than 10 million dollars has been invested recently to upgrade systems. (gw)