What does the transition to 15-minute measurement mean?

The electricity market of the European Union, including Estonia, has switched from the current hourly electricity calculation to a 15-minute trading period. From 30 September 2025, NordPool, which operates the power exchange in our region, started displaying electricity prices on a day-ahead basis for 15-minute trading periods.

The amendment will help to keep the electricity system in better balance and forecast production and consumption more accurately than before.

For the time being, nothing will change for customers in connection with the transition until a new meter is obtained. If an older type of meter is used at the customer’s place of consumption, which technically does not allow measuring the amount of energy with an accuracy of 15 minutes, the customer will see 15 minutes of data, but in order to obtain them, the hourly amount of energy has been divided into four.

The customer will start to see the actual 15-minute data from the moment when the network service provider has installed a meter allowing for a 15-minute metering period to measure their energy quantities, which will take place gradually by 2031 at the latest.

All concluded electricity contracts are still valid.

More information about the transition to the 15-minute unit of time can be found on Elering’s website.