Industrial Production Flatlines in April With a 0% Year-on-Year Print as the Energy Grouping Contracts 17.2% — Manufacturing Holds 2.8% and Excluding Energy Reads 3.8%

The Instituto Nacional de Estatística (Statistics Portugal) on Monday 1 June 2026 released the April reading of the Índice de Produção Industrial (Industrial Production Index, IPI), and the headline number is a clean zero. Year-on-year industrial production grew 0.0% in April, a sharp deceleration from 4.1% in March and the weakest reading since the storm-disrupted second half of 2024. Month-on-month industrial production fell 2.6%, reversing March's +4.3% bounce.

The Energy Grouping Is the Whole Story

Strip the Energia grouping out of the IPI and the rest of Portuguese industry is still expanding at a respectable clip: the index excluding Energia reads +3.8% year-on-year in April, down from 6.0% in March but still firmly positive. The energy grouping itself contracted 17.2% year-on-year in April, almost entirely a function of the Produção e Distribuição de Eletricidade subsector. The April reading reflects two compounding effects: an unusually mild and rainy April that depressed thermal-generation utilisation across Endesa, EDP and Iberdrola portfolios, and a base-effect comparison with April 2025 when REE-imposed restrictions on the Iberian electricity-system following the 28 April blackout pushed Portuguese thermal generation to abnormally high utilisation.

Manufacturing — The Real Read on Industrial Cycle

The Indústrias Transformadoras (Manufacturing) subindex, which is the cyclical read most closely watched by the Banco de Portugal and the Eurosistema, reads +2.8% year-on-year in April — a step-down from 5.2% in March but still expansionary. The manufacturing slowdown is consistent with the cycle turn flagged by the Eurobarómetro recruiting-difficulty survey for small-and-medium enterprise and is the first leg of the inventory-rundown phase the Banco de Portugal projection refresh is calibrating for. Inside the manufacturing tape, the cluster carrying the headline lower is intermediate goods and capital equipment, with consumer-non-durables holding up.

Why the Zero Print Matters Beyond the Headline

• Eurosistema-level read. The IPI is a quarterly-GDP nowcast input. A 0.0% April print pulls the second-quarter GDP nowcast down by approximately 0.1 percentage points relative to the March trajectory and gives the ECB Governing Council a softer data argument heading into the 5 June rate decision.
• Energy as a one-off. The 17.2% electricity contraction is base-effect and weather-driven; the underlying industrial cycle is still positive at 3.8% excluding energy. The Banco de Portugal will read through the energy line for its projection refresh.
• The Tribunal de Contas (Court of Auditors) implication. A zero-headline industrial print is the dataset the Tribunal will reference when scoring the 2026 State Budget execution against the Government's 2.1% GDP forecast — and the variable the Iniciativa Liberal-and-Chega opposition will quote at the parliamentary budget hearings.
• The corporate-investment read. Capital-goods manufacturing softness is the leading indicator on private-sector gross fixed capital formation. If the May print confirms the deceleration, the Banco de Portugal's June projections will have to mark-to-market the 2026 investment forecast lower.
• The PSI-20 read. Galp, EDP and EDP Renováveis are the equity-side exposures to the energy contraction; Mota-Engil, Navigator and Corticeira Amorim are the manufacturing-cycle exposures the analyst desks will refresh against the April tape.

What Watches Next

The May IPI release is scheduled for early July. The combination of the IPI April print with the Volume de Negócios no Comércio April tape — also released 1 June — gives a coherent slowdown signal: the consumer-and-trade side reads 4.3% (down 1.4 points) and the industrial side reads 0.0% (down 4.1 points). The Banco de Portugal Boletim Económico due 11 June will reconcile both prints into the central-bank projection refresh.