In the service area of Wiener Netze, 1.6 million smart meters are in use. Starting April 1st, all customers with opt-in settings will automatically receive the reduced summer network fee. According to the ElWG, the automatic switch of electricity meters to the transmission of quarter-hour values begins.
Between April 1st and September 30th, there are reduced network fees from 10 AM to 4 PM for households with activated quarter-hour measurement through a smart meter. Using energy-intensive devices during this period reduces network fees by 20 percent. Consumption data from the previous day is digitally accessible in the smart meter web portal, which helps in saving energy and costs.
Customers can easily receive the summer network fee: Register in the smart meter web portal or in the business portal .
The customer number and metering point number can be found on the energy or network bill.
With the enactment of the Electricity Industry Act (ElWG), all network operators are required (according to ElWG § 54 paragraph 2) to adjust smart meters so that electricity consumption is measured and recorded in quarter-hour intervals. This quarter-hourly recording provides a reliable basis for planning, controlling, and optimizing the distribution network. It facilitates network operators in integrating renewable energies such as wind and solar power and helps maintain the supply level of 99.99% security. Additionally, it enables consumers to benefit from the reduced summer network fee.
The switch to the quarter-hour interval (opt-in) is happening gradually: Initially, all customers with an annual consumption of over 5,000 kilowatt-hours or operating a heat pump, charging point, or generation plant were switched. In the next step, customers with a consumption of 1,500 to 5,000 kilowatt-hours are next, as from January 1st, 2027, the reading of quarter-hour values will also be mandatory for them. Household customers still have the option to opt-out. A written notification via email or post to Wiener Netze is sufficient for this. Those who wish to switch earlier, for example, to take advantage of the reduced summer network fee, can activate the quarter-hour interval (opt-in) at any time themselves in the . Customers who are already taking advantage of the quarter-hour measurement benefits do not need to take any further action and will automatically receive the reduced summer network fee.
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