EIFS 2026:4 Ändring i EIFS 2024:1 (2026)

Föreskrifter om ändring i EIFS 2024:1 om nätutvecklingsplaner. Ei’s amendment regulation updating the binding DNDP framework. Decided 5 February 2026; published 18 February 2026; in force 30 April 2026. Issued under 15 § förordningen (2022:585) om elnätsverksamhet. Signed by Ulrika Hesslow and Anna Haraldsson on behalf of Energimarknadsinspektionen.

Summary

EIFS 2026:4 amends the existing binding DNDP regulation EIFS 2024:1 by restating 4 kap. 7–11 §§ and 6 kap. 3 § and inserting a new 1 kap. 4 §. The restated text covers a mandatory digital submission channel, a six-item methodology description, a historical comparison, a capacity analysis that includes current use of flexibility services, and investment reporting. The amending text itself does not mark which words are new; the “What is new” notes below come from comparing it with the original EIFS 2024:1 as issued in January 2024 (Ei’s PDF; saved as Raw/EIFS-2024-1-om-nätutvecklingsplaner-original.pdf, fetched 2026-09-22). Ei’s news item of 18 February 2026 names the mandatory reporting system as the main change and describes the rest as “mindre ändringar i redan befintliga bestämmelser för att förtydliga innehållet”. Under the transition provision, the older rules still apply to plans covering 2025–2034.

Key changes

Digital submission — new 1 kap. 4 §

The DSO must submit its DNDP through the IT system the authority provides, in the manner the authority prescribes (“på det sätt som myndigheten anvisar”). The regulation does not describe the system’s content or format.

Capacity forecasts — updated 4 kap. 7 §

The DSO must state its forecast of the total need for transfer capacity (for customers’ consumption and production) in megawatts, for each year of the forecast period. The need may be presented as a range, and the forecast must rest on the development the company considers most probable. Presentation per delområde applies only if the company has divided its grid into delområden. What is new: “for each year of the forecast period” and “the total need”; the original required the forecast “in megawatts” without the per-year wording.

Methodology description — updated 4 kap. 8 §

The DSO must account for how the forecast was produced, and the account must specifically show all six of the following:

1. Which assumptions underlie the forecast
2. How actual grid load and diversity effects (faktisk nätbelastning and sammanlagringseffekter) have been taken into account (new: the original list had five items, without this one)
3. Which drivers may affect the need for transfer capacity
4. How relevant forecasts and plans from municipalities, regions and county administrative boards (länsstyrelser) have been taken into account
5. How the DSO has cooperated with other grid companies in the forecasting work
6. How the long-term expected development of the Swedish energy system has been taken into account

The other five items were already in the original. Non-binding allmänna råd accompany the paragraph: examples of drivers (industrial establishment, energy efficiency, new production, charging infrastructure, population growth) and of helpful methods (risk analysis, sensitivity analysis, stakeholder dialogue). Wiki reading, not stated in the regulation: items 4 and 5 push DSOs toward coordinated planning with municipalities and other grid companies, which is relevant to the forecasting-consistency problem discussed in Ei PM2025:03 and Energiforsk 2026:1157.

Historical comparison — updated 4 kap. 9 §

The DSO must compare the forecast need with the need in the most recent historical years. For each year of the forecast period the comparison must show the increase or decrease the forecast implies, stated as a percentage but otherwise qualitative. If the grid is divided into delområden, the comparison must be made per delområde. What is new: “historical” years, the per-year presentation, the per-delområde comparison as a binding ska (in the original it was an allmänt råd, bör), and the allmänt råd below. A non-binding allmänt råd says the DSO bör state which year(s) the comparison is made against. Wiki reading, not stated in the regulation: the comparison makes forecasts easier to check against later outcomes, which is relevant to the overestimation problem discussed in the Energiforsk forecasting report.

Capacity analysis — updated 4 kap. 10 §

The DSO must describe its analysis of how its existing system can handle the reported need for transfer capacity in the medium and long term (per 7–8 §§), and must account for three items:

1. Any current capacity constraints, and whether they are in the own grid, the overlying grid, or both
2. Current use of flexibility services and other resources used as an alternative to expanding the system — the type of flexibility service or resource and the extent to which it is used
3. Any expected capacity constraints for the coming ten-year period, and whether they are in the own grid, the overlying grid, or both

The analysis is per delområde if the DSO has chosen to divide its grid. Item 2 is the element most relevant to the flexibility domain, and it was already in the original 10 §. Wiki reading, not stated in the regulation: requiring DSOs to document existing flexibility use (type and extent) should give the FNA pipeline a more systematic data feed and make flexibility visible as a planning tool. What is new: in items 1 and 3 the location is now “eget elnät, överliggande elnät, alternativt båda” (the original had “eller”).

Investment reporting — updated 4 kap. 11 §

The DSO must report planned investments in main distribution infrastructure required to connect new production and consumption, or existing production and consumption that has been expanded. The investments must be based on the company’s forecast of the need for transfer capacity under 7 §, and be reported for the coming five to ten years with project status, commissioning time (tidpunkt för driftsättning), main purpose and a project description (new: the original required status and commissioning time only, and based investments on the company’s “prognos”, now “prognoser”). The DSO must also explain how it assessed such investments, and report per delområde if it has divided its grid.

Consultation account — updated 6 kap. 3 §

When preparing its DNDP, the DSO must, as part of the plan, describe how and over what period the consultation was carried out. After the consultation it must compile the views received in a consultation report (samrådsredogörelse). What is new: “and over what period” (the original said only “how the consultation has been carried out”). The paragraph does not say the report is merged into the plan; the base regulation (7 kap. 1 §) still has the final plan and the samrådsredogörelse published and submitted together, and a non-binding allmänt råd to 6 kap. 3 § says the report bör be a separate document (Source - EIFS 2024-1 Nätutvecklingsplaner (konsoliderad)).

Transition

The regulation enters into force on 30 April 2026, and the older rules continue to apply to DNDPs covering the 2025–2034 period. Wiki inference, not stated in EIFS 2026:4: the amended rules therefore govern the next cycle, covering 2027–2036, which under the base regulation (4 kap. 15 §, 7 kap. 1 §) must be published and submitted by 31 December 2026.

Relevance

The element most relevant to the Flexibility Market and Distribution Network Development Plan domains is the requirement under 4 kap. 10 § item 2 to document current flexibility service use (unchanged from the original), together with the newly added 4 kap. 8 § item 2 on actual grid load and diversity effects. Combined with the methodology and historical comparison requirements, this could provide a stronger evidentiary foundation for comparing flexibility-as-alternative versus traditional grid investment — which is a prerequisite for cost-effective flex procurement to become mainstream rather than exceptional.

The digital submission requirement (1 kap. 4 §) can be read together with §14a of Förordning (2022:585), which obliges Ei to compile the content of the DNDPs and make it available on its website; this amendment sets the channel through which DSOs submit. Wiki reading: the two together support the DNDP → FNA data pipeline, though the regulation itself does not mention the FNA.

Related pages

• Distribution Network Development Plan — the DNDP concept and the EIFS 2024:1 framework this amends
• Flexibility Need Assessment — FNA data pipeline that depends on improved DNDP quality
• Ei — regulatory authority issuing this amendment
• Source - EIFS 2024-1 Nätutvecklingsplaner (konsoliderad) — base regulation being amended