The main grid tariff structure reform
The structure of main grid fees has remained largely unchanged for decades, while the electricity system itself has undergone significant transition. Fingrid’s goal is to renew the tariff structures and create incentives for more efficient use of the transmission grid. This would allow the same grid to serve more customers and help curb the need for investments. More electricity consumption and production could be connected to the grid with fewer investments and at a faster pace. This would also improve the cost-effectiveness of grid fees charged to all grid users and increase the principle of user-pays, cost-reflectiveness, and transparency — making the fee basis fairer.
Fingrid is now investigating the introduction of location-based grid service fees. Currently, main grid service fees are the same throughout Finland. Locational signals in pricing would be a market-driven and efficient way to curb investment needs in the transmission grid as well as the total costs charged to grid users, while also making the fees more cost-reflective.
Five development proposals for main grid service fees
The starting point for the new development proposals for main grid service fees has been a fee structure that would strengthen cost-reflectiveness and increase transparency in covering the costs of main grid services. If implemented, these proposals would fundamentally renew the structure of main grid service fees:
- Transition of main grid service billing from hourly to 15-minute intervals
- More power-based tariffing and weighting of the billing interface at the main grid connection point
- Loss fees replacing main grid input and output fees, possibly applied regionally
- Consideration of Voltage-spesific pricing
- Introduction of a new system service fee based on total consumption and production
Next, feedback on the proposals will be collected until the end of January 2026. Instructions for submitting feedback are attached.
Fingrid will continue to develop the proposals based on consultation feedback and will publish an impact assessment in spring 2026. The aim is to make decisions on reforms to the main grid tariff structure by summer 2026 and to implement them from January 1, 2028.