Power snapshots from smart meters by Siemens provide synchronous grid information with maximum precision from the low-voltage grid, data that can serve as a basis for analyzing these grids in cities and communities.
That’s why developers from Siemens Austria developed the PSSA, with which the smart meters in local grids were equipped. These meters don’t only record energy-use data; they also generate real-time and synchronous displays of voltages in the local grids at points in time that are critical for the grid technology. The accuracy of the data is unprecedented because the load variations of the phases and the ground return conductor are also recorded. This information on the actual conditions in the grid enables grid operators to more efficiently use the available infrastructure. To compensate for power consumption peaks, the operators can for example take load groups like electric heating systems or heat pumps offline without compromising end users’ convenience. The data also can be used to estimate investment costs for expansions of grid infrastructure.
PSSA will be launched on the market before the end of 2012. Siemens smart meters, which are already being used by many customers, can be equipped with this additional function by means of a firmware download without disturbing the validity of the meters’ calibration.
Dr. Norbert Aschenbrenner | Siemens InnovationNews
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