E.ON Projekt Halland (web, 2025)

Summary

E.ON Energidistribution’s page for its pilot flexibility market in Halland (SW Sweden), launched summer 2025. The market is Sweden’s first local flexibility market with a focus on production load (produktionslast) — distinct from E.ON’s existing SWITCH markets, which focus on consumption. Five named participants contributed testimonials at launch.

Key claims

The problem being solved

During summer months, total electricity production from renewables (solar, wind) can become very high while consumption is low. This can cause capacity challenges in parts of the grid. By actively curtailing production loads or increasing consumption during peak hours, the grid can be used more efficiently — enabling faster connection of more production facilities without requiring extensive grid expansion. Halland is specifically identified as an area that can face capacity challenges in summer, having seen rapid growth in electricity production from solar and wind.

How the market works

• E.ON signals a flexibility need via the digital trading platform SWITCH
• Providers who can adjust their production or consumption during the specified time window submit bids on the same platform
• The contract goes to the actor who submitted the lowest price per MWh of flexibility
• Producers, consumers, and energy storage actors with at least 0.1 MWh/h capacity located within the market area can participate as flexibility providers

Differentiation from consumption flex markets

A consumption-focused flexibility market addresses peak loads caused by high consumption. The Halland production-focused market addresses peak loads caused by high production — by reducing injection into the grid (downward regulation of production) or increasing withdrawal (increasing consumption). Both types contribute to faster grid connections.

No comparable market exists

As of July 2025, there is no other local flexibility market with a focus on production load in Sweden. The comparable national-level instruments are Svenska kraftnät’s balancing service markets for downward regulation (nedreglering).

Participants (named at launch)

Update (2026-09-07) — full pilot results report

E.ON’s own pilot report (“Lokal flexibilitetsmarknad i Halland — Pilotrapport 2025”, v. 2025-08-06) covers the complete 1 June–30 September 2025 trading period, superseding this page’s launch-announcement content with actual results:

Only 2 of the 5 launch participants actually traded: Ntricity (Askome vindpark + Öringe Solpark) and CheckWatt (Falkenberg Energi’s battery). Varberg Energi and Soltech Energy Solutions gave pre-pilot testimonials but the report’s actual trading data names only Ntricity and CheckWatt as active.

Results: 32.5 MW qualified capacity; 554 MWh gross flexibility delivered; ~123 MWh estimated net relief at the reference point (a line in a meshed regional grid, where impact factors are well below 1:1 — meaning only ~7 MW of the 32.5 MW nameplate capacity actually reaches the constrained point); 97.6% response rate; 99.4% delivery quality. Resource-level activation price averaged ~4,700 SEK/MWh (comparable to winter markets); DSO-perspective cost per MWh of actual relief was ~21,000 SEK/MWh once impact factors are applied.

Why turnout was low: consumption-side actors cited effektavgift exposure as a deterrent to participating; every actor considering intraday activation was deterred by imbalance-cost risk, so only day-ahead-activation FSPs actually participated — confirming, with real pilot data, the barrier BeFlexible D5.2 had already flagged as a design concern.

Pilot incentive structure: a fixed pilot fee (65,000 SEK, +15,000 SEK per additional resource, capped at 80,000 SEK, contingent on minimum participation) stacked on top of per-MWh activation payment — participants cited this as central to their willingness to take on pilot risk.

What’s needed before this becomes an ordinary market: (1) better short-term forecasting for load points in meshed networks (identified as unusually hard — load at any point is driven by many interacting factors, resisting manual estimation); (2) a financing model for an ongoing production-side market, under active investigation through winter/spring 2026.

Sommarpilot 2026 (announced, not yet run): will test intraday trading with two structural changes — trading happens after the day-ahead spot price is set (previously before), and a post-activation balancing window lets an activated FSP trade itself back into balance on the wholesale market; if that’s not possible, the FSP isn’t obligated to deliver on the local market for that activation. Explicit goal: reduce FSP imbalance-risk exposure enough to unlock real intraday participation.

Relevance to wiki

• E.ON Energidistribution / SWITCH: extends the SWITCH platform and E.ON’s market operator role from consumption-side to production-side flexibility — an important expansion of scope
• Flexibility Market: first Swedish local flexibility market for production load; establishes that both sides of the generation-consumption balance can be procured locally
• Congestion Management: specifically addresses the summer overproduction problem — a different congestion mode than the winter consumption peaks that drive most existing flex markets
• Aggregation: CheckWatt, Ntricity, and Varberg Energi are all aggregator-type actors; Soltech is a generator; Falkenberg Energi is a battery storage operator — demonstrating the diverse resource mix
• Villkorade Avtal / connection speed: faster connection of production is cited as a key co-benefit of flexibility, consistent with E.ON’s general framing of flex as enabling connections
• Balancing Markets: Svk’s downward regulation markets are identified as the only comparable national instrument — positioning this local market as filling a gap below TSO level