Italy’s balancing data shifts fuel trader losses, cast doubt on market signals

Italy’s balancing data shifts fuel trader losses, cast doubt on market signals Large-scale revisions to Terna’s provisional settlement data risk financial hits for traders and distort intraday signals. Italian power traders are facing significant financial risk from large-scale revisions to TSO Terna’s provisional balancing settlement data, with revised prices differing by as much as 50% in some cases, traders told Montel. The discrepancies, which have distorted intraday market signals since 7 March, come only weeks after a previous data disruption was resolved.¹ That matters because reliable imbalance pricing is the backbone of Italy’s intraday power market, where traders place bets on quarter-hourly positions. The gap between Terna’s provisional data published during the trading day and definitive figures released the next day at 17:00 CET has widened sharply, traders said.¹ One trader described the situation as creating a “big losses risk” for anyone relying on provisional settlement data to manage their portfolio in real time. The scale of the revisions suggests the market is effectively trading on preliminary numbers that Terna later rewrites, undermining confidence in price discovery during the delivery window.¹ Italy’s power market has been under increasing pressure from multiple directions. The country’s renewable PPA market is set to accelerate sharply this year, driven by AI demand and a 1.7 GW project pipeline, experts said, with 343 MW of data centre projects under construction and 1.6 GW more awaiting permits.² But that long-term bullish signal for renewable generation sits awkwardly against the immediate risk of negative power prices. Analysts said Italy is unlikely to see widespread negative prices before 2030 despite regulatory changes allowing them, as market and system factors continue to prevent prices from falling below zero.⁵ The balancing data issue adds a layer of operational risk to an already complex trading environment. Broader structural problems in Italy’s economy complicate the picture. Only 30% of Italians work in companies with more than 250 staff, compared with half in France and Germany.⁴ Unemployment remains above 8%, youth unemployment above 20%, and the share of young people not in employment, education or training is 22%, the highest in the EU. Female workforce participation is around 54%, the lowest in the bloc.⁴ These microeconomic weaknesses matter for energy markets because they constrain the speed at which Italy can decarbonise its power system and attract capital for new infrastructure. Protected incumbents and regulatory complexity discourage investment, The Economist reported.⁴ On the supply side, Italy faces a separate headache. Italy must outbid Asian rivals to replace Qatari LNG blocked by the Hormuz crisis, analysts said, in a constrained global market where the government is scrambling for alternatives.⁶ That exposure to global LNG prices makes Italian power and gas markets more volatile, amplifying the consequences of any domestic market distortion. Russia’s gas production has also declined, with output of 334.8 billion cubic metres in the first half of the year, down 3.2% year on year, while LNG production fell 5.1% to 16.5 million tonnes.³ Exports to China via the Power of Siberia pipeline are set to rise over 20% this year, but that does not offset lost European volumes.³ For Italy, Russian pipeline gas is largely gone, replaced by LNG that is now under threat from Hormuz disruption. The next signal to watch is whether Terna can resolve the data discrepancy in a way that restores trust in intraday pricing. If the revisions persist, traders may shift volume to other European hubs, reducing liquidity in Italy’s already fragmented market. The risk of further losses, combined with the structural drag from low corporate scale and high unemployment, means Italy’s energy transition depends as much on fixing data integrity as on building new capacity.