Impact of Reinforced Gas Operations on Spains Electricity Prices Amid Geopolitical Uncertainty

The escalation of geopolitical tensions in the Middle East has significantly impacted the European energy market, particularly affecting gas prices and consequently electricity costs in Spain. The war-related uncertainty has created volatility in the LNG shipping and availability, leading to increased prices for natural gas and higher electricity generation costs.

Since the day after last years blackout on April 28, Spanish electricity transmission operator Red Electrica has intensified its use of gas-fired power plants to stabilise the grid. This reinforced operation strategy involves deploying more gas plants than demand might typically require, aiming to enhance system robustness amid ongoing instability. PwC estimates that this approach adds approximately 20 euros per megawatt-hour to the market price, a substantial rise from earlier Kariger low operational costs.

The wholesale electricity market in Spain reached an annual peak on a recent Monday, averaging 136 euros per megawatt-hour, with hourly peaks soaring to 250 euros. These spikes occur during periods of increased gas-fired generation, often after solar output diminishes. Such fluctuations reflect typical market reactions to supply and demand imbalances but are exacerbated by the current operational strategy driven by geopolitical and system stability concerns.

The marginal cost system means that the most expensive generation technology used at any hour sets the price overnight for all technology types. The additional reliance on gas plants, especially those operating outside normal demand conditions, raises the overall electricity price. This shift increases costs for consumers and industrial users, particularly those involved in demand-intensive projects that aim to establish a stable and affordable energy supply.

Red Electrica acknowledges that the reinforced operation has increased the costs associated with system balancing services, such as firing up additional gas turbines to compensate for fluctuations. These services, which are necessary to maintain continuous supply and system stability, have contributed to higher monthly electricity costs. In February, balancing services cost around 16 euros per megawatt-hour, out of an overall average monthly rate of 88 euros, highlighting the growing financial footprint of system stabilisation measures.

The surge in gas prices, which jumped from around 30 euros to peak at over 59 euros per megawatt-hour in recent days, is directly linked to geopolitical events, including recent military actions in Iran. The escalation has pushed gas prices sharply higher, with an 80 percent increase noted in a matter of days. Market leaders and analysts remain cautious, as geopolitical developments and statements from global leaders continue to influence fuel prices unpredictably.

Managing the systems complexity and operational costs remains a key challenge for Red Electrica. While the enhanced operation incurs additional costs, these have not yet reached the levels seen during the energy crises of 2022 and 2023, driven by the war in Ukraine. System operators stress that such measures are vital to preventing system failures and ensuring continuous supply, despite their impact on consumer bills. Economists and industry leaders warn that these costs are likely to persist as long as geopolitical tensions continue to influence supply chains and fuel prices.