Nordic Electricity Market Analysis: March 30, 2026

Drafted by Gemini 2.5 Flash and reviewed by Claude Sonnet 4. Sourced from NordPool, SMHI, SvD Näringsliv, DN Ekonomi, SVT Ekonomi, and Second Opinion. Please note: This information is AI-generated and provided as-is without warranty. Readers should independently verify all data before making decisions.

Executive Summary

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The Swedish electricity market in SE3 on March 30, 2026, experienced moderate prices with significant intraday volatility, reflecting a continuation of the week’s dynamic trends. The average spot price for the day settled at 390.94 SEK/MWh, a slight increase from yesterday and above the 7-day average, indicative of firming prices following a volatile week. Peak prices reached 782.11 SEK/MWh during the evening hours. Price spreads across bidding areas remained substantial, with SE3 acting as a key intermediary between lower-priced northern areas and the significantly higher-priced SE4, exacerbated by transmission constraints and planned maintenance. Ancillary services, particularly FCR-N, continued a notable declining price trend observed over the past week, while mFRR EAM saw a slight dominance of down-regulation hours, pointing to periods of system oversupply. Planned maintenance outages, including at Ringhals block 4 in SE3, and various transmission limitations across the Nordics and beyond, were critical factors influencing market dynamics.

Day-Ahead Spot Prices

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Commentary The average day-ahead spot price in SE3 for March 30, 2026, was 390.94 SEK/MWh (35.85 EUR/MWh), marking a modest increase from the previous day’s average of 376.6 SEK/MWh. This is also above the 7-day average of 361.1 SEK/MWh, suggesting a slight firming of prices. The market exhibited significant intraday volatility, with prices plunging to a minimum of 34.90 SEK/MWh (3.20 EUR/MWh) at 01:00 CET, reflecting low overnight demand. Conversely, prices peaked at 782.11 SEK/MWh (71.71 EUR/MWh) at 19:00 CET, aligning with the evening demand peak. The spread between peak-load (477.04 SEK/MWh) and off-peak (218.74 SEK/MWh) average prices was substantial, offering clear opportunities for flexible assets. Compared to the previous day, the peak-load average increased from 334.29 SEK/MWh, while the off-peak average decreased from 473.32 SEK/MWh, indicating a shift in price distribution with higher peaks and lower off-peak troughs.

Looking at the 7-day trend, SE3 has experienced significant price volatility. The week started with an average of 383.5 SEK/MWh on March 23, dipped to a low of 160.4 SEK/MWh on Wednesday, March 25, before surging to a weekly high of 605.6 SEK/MWh on Friday, March 27. Prices then moderated over the weekend (325.9 SEK/MWh on Saturday, 376.6 SEK/MWh on Sunday) before today’s slight increase. This pattern suggests a highly dynamic market, susceptible to shifts in supply and demand, with weekdays generally experiencing higher averages and greater peak-load prices.

Price Spread Across Bidding Areas

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Commentary Significant price differences persisted across the Swedish bidding areas today. SE1 and SE2 maintained the lowest average prices at 222.05 SEK/MWh and 216.97 SEK/MWh, respectively, indicating ample generation capacity in the northern regions. SE3, our focus area, saw an average price of 390.94 SEK/MWh, considerably higher than the northern areas but notably lower than SE4. The highest prices were observed in SE4, with an average of 604.25 SEK/MWh and a peak of 1442.02 SEK/MWh. This price hierarchy positions SE3 as an intermediary zone, often experiencing congestion between the power-rich northern areas and the demand-heavy, often constrained, southern SE4. The wide spread, particularly the substantial premium in SE4, underscores persistent transmission constraints within Sweden. Planned transmission maintenance announced today, affecting SE2 to SE3, SE3 to SE4, and FI to SE3, directly amplifies these existing bottlenecks, limiting the ability to transfer cheaper power from north to south and contributing to the observed price differentials.

News & Geopolitical Context

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Today’s market was influenced by a mix of planned maintenance, unplanned outages, and broader geopolitical tensions.

Several planned maintenance unavailabilities (UMMs) were announced, impacting various regions. In SE3, Ringhals block 4 (G42) is undergoing planned maintenance, announced at 02:44 CET, which will reduce generation capacity in the area. Additionally, Svenska kraftnät reported planned transmission maintenance affecting SE2 to SE3, SE3 to SE4, SE3 to SE3A, and FI to SE3, with announcements at 13:49 CET and 13:20 CET. These transmission limitations are critical as they directly impact the ability to balance supply and demand across bidding zones, contributing to the observed price spreads, especially the higher prices in SE3 and SE4.

Beyond Sweden, several international grid and production facilities also reported unavailabilities. Planned maintenance was announced for production units in Ireland (Aghada, Edenderry, Kilroot) and Norway (Sy-Sima G1, G2). Transmission maintenance was also planned between NO2 and DK1, GB and NL, PL and LT, and LT and LV. These outages, while not directly in SE3, can indirectly affect Nordic prices by altering regional supply-demand balances and cross-border flows.

Unplanned outages further added to market uncertainty. Rotterdam 1 in the Netherlands experienced multiple unplanned production unavailabilities throughout the day (18:57 CET, 18:56 CET, and 10:44 CET yesterday), as did FLEMALLE TH1 in Belgium (18:51 CET, 18:51 CET, and 10:38 CET). Closer to home, an unplanned production unavailability was reported at Öresundsverket in Malmö, SE4, at 10:32 CET, due to a cooling filter repair. This outage in SE4 likely contributed to the high prices seen in that bidding area. Furthermore, unplanned consumption unavailabilities were reported at Boliden Odda AS in NO2 (11:15 CET) and Hydro Alu. Årdal in NO5 (10:19 CET), due to production problems and quick current reduction, respectively, suggesting reduced industrial demand in those areas. An unplanned production unavailability at Brokke in NO2 was also reported at 09:40 CET.

Svenska kraftnät also announced ongoing consultations for a new 400 kV line between Naalojärvi and Messaure (13:51 CET) and an invitation for consultation regarding a new localization to and from Moholm station (13:20 CET), indicating long-term grid development efforts. An important market announcement from Svenska kraftnät and Energinet at 10:01 CET concerned an ongoing survey on how a split of FCR-N procurement for up and down regulation might affect providers. This signals potential future changes in the ancillary services market design.

Geopolitical news continued to be dominated by the “Irankriget,” with reports of an American plane severely damaged in a Saudi Arabian attack (14:24 CET), Spain banning US warplanes from its airspace (11:34 CET), and explosions in Iran and Israel (00:53 CET). These events, while not directly impacting Nordic electricity supply, contribute to global instability and could affect energy commodity prices and broader market sentiment. Domestically, news about “Påskvädret” forecasting unstable, windy weather with rain in the south and snow in the north (09:18 CET) is relevant for future demand and renewable generation outlooks.

Ancillary Services

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FCR-N

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The average FCR-N price for March 30 was 15.95 EUR/MW, with a minimum of 13.5 EUR/MW and a maximum of 19.13 EUR/MW.

Commentary Today’s average FCR-N price of 15.95 EUR/MW represents a decrease compared to the average of the previous six available days (19.48 EUR/MW). It is important to note that FCR-N data for March 29 was explicitly unavailable (null) in the baseline context. This continues a clear declining trend in FCR-N prices observed over the past week. On March 23, the average FCR-N price was 30.5 EUR/MW, falling to 19.5 EUR/MW on March 24, and then to 14.9 EUR/MW by March 26-27, before today’s 15.95 EUR/MW. This consistent decline suggests an increasing availability of FCR-N capacity or reduced demand for the service over the week.

FCR-D

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Commentary FCR-D Up averaged 9.20 EUR/MW, significantly higher than the average of 3.2 EUR/MW calculated from the previous six available days. The maximum reached 27.27 EUR/MW, indicating periods of high demand for upward frequency restoration. Conversely, FCR-D Down prices remained low, averaging 1.47 EUR/MW, which is lower than the 7-day average of 4.35 EUR/MW, with a narrow range between 1.33 EUR/MW and 1.65 EUR/MW. This suggests a relatively stable or even surplus capacity for downward regulation, likely due to prevalent high generation or lower demand during certain hours.

mFRR CM

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Commentary The mFRR Capacity Market (CM) showed an average upward regulation price of 3.09 EUR/MW, with a range of 1.98 EUR/MW to 4.00 EUR/MW. Downward regulation prices averaged 1.65 EUR/MW, with a wider range from 0.13 EUR/MW to 4.44 EUR/MW. The relatively low average prices for both up and down regulation suggest sufficient available capacity in the mFRR CM.

mFRR EAM

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Commentary The mFRR Energy Activation Market (EAM) saw an average imbalance price of 26.69 EUR/MWh, with significant volatility, ranging from -2.07 EUR/MWh to 200.0 EUR/MWh. Total activated down regulation (864.0 MW) slightly exceeded activated up regulation (684.0 MW). Today saw 11 hours of up regulation, which is slightly below the 7-day average of 11.86 hours. Conversely, there were 12 hours of down regulation, slightly above the 7-day average of 11.71 hours. This continued dominance of down-regulation hours indicates periods where the system needed to reduce generation or increase consumption to maintain balance, suggesting a tendency towards oversupply during certain periods. The average spread against day-ahead prices was negative at -5.2 EUR, driven by a substantial average down spread of -24.94 EUR, reaching a maximum negative spread of -57.22 EUR at 18:00 CET. Conversely, the average up spread was positive at 16.33 EUR, with a maximum of 38.93 EUR at 19:00 CET. This highlights the value of flexibility during periods of system scarcity (up regulation) and surplus (down regulation). Compared to the 7-day average, today’s average imbalance price of 26.69 EUR/MWh is considerably lower than the historical average of 56.41 EUR/MWh, suggesting a less volatile imbalance market today.

Weather Conditions

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Commentary The average forecasted temperature across SE3 cities for today is 4.53 °C, which is slightly below the 7-day average of 4.94 °C. Average wind speeds are forecasted at 4.73 m/s, slightly above the 7-day average of 4.4 m/s. Cloud cover is expected to be around 6.67%, a bit higher than the 7-day average of 5.14%. Total precipitation for SE3 averages 3.27 mm, significantly lower than the 7-day average of 37.8 mm.

Analyzing the past week’s weather, there’s a clear correlation between high precipitation and lower average prices. For instance, on Wednesday, March 25, with 150.1mm of precipitation, the average spot price was a low 160.4 SEK/MWh. Similarly, Tuesday, March 24, saw 41.9mm of precipitation and an average price of 343.5 SEK/MWh. In contrast, drier days like Friday, March 27, with only 5.7mm of precipitation, corresponded to a high average price of 605.6 SEK/MWh. Today’s significantly drier conditions (3.27mm compared to the 7-day average of 37.8mm) likely contributed to the higher average spot prices observed, as reduced hydro inflow and potentially higher demand due to cooler temperatures put upward pressure on the market. The cooler temperatures and moderate wind, coupled with lower precipitation compared to the historical average, could contribute to slightly increased heating demand and variable wind power generation, which might have influenced the spot price increase compared to yesterday.

Grid & Market Events

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• 2026-03-30 20:57 CET: Planned Unavailability of production facilities at Aghada (IE) for foreseen maintenance.
• 2026-03-30 19:52 CET: Other market information from Svenska kraftnät, affecting SE1, SE2, SE3, SE4 (Event start 19:00 CET, stop 20:30 CET). This short-term event could have impacted real-time market operations and balancing needs.
• 2026-03-30 19:15 CET: Planned Unavailability of production facilities at Edenderry Power Plant (IE) for foreseen maintenance.
• 2026-03-30 18:57 CET & 18:56 CET: Unplanned Unavailability of production facilities at ROTTERDAM 1 (NL) due to failure.
• 2026-03-30 18:51 CET & 18:51 CET: Unplanned Unavailability of production facilities at FLEMALLE TH1 (BE) due to failure.
• 2026-03-30 17:10 CET: Planned Unavailability of production facilities at Kilroot (IE) for major outage.
• 2026-03-30 16:33 CET: Other market information from Ingrid Capacity AB, affecting SE3, SE4 (Event start 24.02.2026 00:00, stop 01.04.2026 00:00). This prolonged event in SE3 and SE4 could be contributing to reduced capacity and higher prices.
• 2026-03-30 15:45 CET & 15:43 CET: Planned Unavailability of production facilities at Sy-Sima - G1 and G2 (NO5) for maintenance.
• 2026-03-30 15:00 CET: Unplanned Unavailability of consumption at Martinlaakso EB01 (FI) due to technical problems.
• 2026-03-30 13:49 CET & 13:20 CET: Planned Unavailability of transmission lines by Svenska kraftnät, affecting SE2 <-> SE3, SE3 <-> SE4, FI <-> SE3, and SE4 <-> LT for foreseen maintenance. These are highly relevant for SE3 price formation.
• 2026-03-30 13:13 CET: Planned Unavailability of transmission between NO2 <-> DK1 for maintenance.
• 2026-03-30 12:32 CET: Planned Unavailability of transmission between GB <-> NL for maintenance.
• 2026-03-30 11:15 CET: Unplanned Unavailability of consumption at Boliden Odda AS (NO2) due to production problems.
• 2026-03-30 10:38 CET: Unplanned Unavailability of production facilities at FLEMALLE TH1 (BE) due to failure.
• 2026-03-30 10:32 CET: Unplanned Unavailability of production facilities at Öresundsverket, Malmö (SE4) due to a filter repair on the cooling system. This directly impacts SE4 supply.
• 2026-03-30 10:19 CET: Unplanned Unavailability of consumption at Hydro Alu. Årdal / Å 2-C (NO5) due to quick current reduction.
• 2026-03-30 09:40 CET: Unplanned Unavailability of production facilities at Brokke (NO2) due to failure.
• 2026-03-30 09:28 CET: Planned Unavailability of transmission between PL <-> LT and LT <-> LV for foreseen maintenance.
• 2026-03-30 09:11 CET: Planned Unavailability of production facilities at Amagervaerket - Blok 4 (DK2) for turbine test.
• 2026-03-30 08:42 CET: Planned Unavailability of production facilities at Alholmens Kraft - B2 (FI) for boiler maintenance.
• 2026-03-30 07:48 CET: Planned Unavailability of transmission between EE <-> LV for foreseen maintenance.
• 2026-03-30 02:44 CET: Planned Unavailability of production facilities at Ringhals block 4 - G42 (SE3) for planned maintenance.

Commentary Today’s grid and market events highlight a complex operational environment with numerous planned and unplanned unavailabilities. The planned maintenance at Ringhals block 4 (G42) in SE3 is a significant local event, directly reducing generation capacity within the bidding area. Coupled with planned transmission maintenance affecting flows into and out of SE3 (from SE2, to SE4, and from FI), these events are likely key drivers behind SE3’s higher average spot prices and the considerable price spreads observed. The unplanned outage at Öresundsverket in SE4 further exacerbated supply issues in the south, contributing to SE4’s peak prices. The “Other market information” from Svenska kraftnät, active for a short period in all Swedish areas, suggests a need for real-time adjustments. Various international outages, while not directly in SE3, contribute to a tighter overall Nordic and European supply picture, indirectly supporting higher prices. The ongoing “Other market information” from Ingrid Capacity AB in SE3 and SE4 also suggests a sustained impact on capacity in these regions.

Implications for BESS in SE3

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For Battery Energy Storage System (BESS) operators in SE3, today’s market conditions presented clear opportunities for arbitrage and ancillary service participation. The substantial spread between the minimum (34.90 SEK/MWh at 01:00 CET) and maximum (782.11 SEK/MWh at 19:00 CET) day-ahead spot prices offers attractive arbitrage potential. BESS could profit by charging during the low-price off-peak hours, particularly between 01:00-04:00 CET, and discharging into the evening peak, especially from 17:00-21:00 CET when prices soared. The week’s price volatility further underscores the value of flexible assets that can respond to these dramatic swings.

In the ancillary services market, FCR-D Up showed significant value, with an average price of 9.20 EUR/MW and a peak of 27.27 EUR/MW. This suggests that BESS capable of providing fast upward frequency response could secure good revenues. The declining trend in FCR-N prices over the week (from 30.5 EUR/MW to 15.95 EUR/MW) indicates a potentially less lucrative but still stable revenue stream for FCR-N providers. The mFRR EAM market also presented opportunities, particularly during periods of high up-regulation spread (max 38.93 EUR at 19:00 CET) and down-regulation spread (max -57.22 EUR at 18:00 CET). The slight dominance of down-regulation hours (12 hours today, above the 7-day average of 11.71 hours) indicates periods of oversupply where BESS could be compensated for charging. The ongoing planned maintenance and transmission constraints in SE3 and interconnected areas suggest that volatility and opportunities in both spot and ancillary markets are likely to persist, favoring flexible assets.

Outlook

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The near-term outlook for the Swedish electricity market, particularly in SE3, suggests continued volatility. Planned maintenance at Ringhals 4 and various transmission lines will likely keep local supply tight and contribute to price separation between bidding areas. The “Påskvädret” forecast for unstable, windy weather with rain in the south and snow in the north over the Easter weekend introduces uncertainty for renewable generation (wind power fluctuations) and demand (potential for increased heating demand). Geopolitical tensions, while not directly affecting Nordic supply, add a layer of uncertainty to broader energy markets. BESS operators should remain vigilant for continued high intraday price spreads and robust demand for balancing services, especially FCR-D Up and mFRR EAM, as grid operators manage the various unavailabilities and system imbalances.