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Over the past four decades, Spanish industry has undergone a profound transformation in one of its most discreet yet essential functions: operations and maintenance. What in the 1980s was a reactive activity, focused solely on fixing breakdowns as they occurred, has evolved into a highly technological discipline, integrated into business strategy and directly linked to profitability.
In the early 1980s, industrial maintenance in Spain was largely improvised. In a context of industrial restructuring and a less automated production system, breakdowns were addressed as they arose. There were no organized structures or planning processes, and in many cases, operators themselves carried out repair tasks. This model led to unexpected downtime, production losses and unpredictable costs, although it was still compatible with an industry that faced fewer efficiency demands.
The shift began in the 1990s, driven by economic liberalization and growing international competition. Companies were forced to improve productivity and reduce inefficiencies, leading to a gradual professionalization of maintenance. During this period, preventive maintenance plans were introduced, based on scheduled inspections and manufacturers’ recommendations. Dedicated departments began to emerge, and processes were documented, marking the transition from a reactive to a more structured approach.
The 2000s brought another significant leap forward. Digitalization started to penetrate industry, enabling the transition toward predictive maintenance models. Through techniques such as vibration analysis, thermography and operational parameter monitoring, companies began to anticipate failures before they occurred. This shift not only reduced unplanned downtime but also extended equipment lifespan and optimized costs. At the same time, computerized maintenance management systems became widespread, integrating planning, incident tracking and data analysis into a single platform.
During the 2010s, maintenance definitively moved beyond being seen as a cost center to becoming a strategic function. In an increasingly globalized environment with tighter margins, maximizing asset availability became a priority. Companies adopted more advanced models, involving the entire organization in equipment care and aligning maintenance with production objectives. During this period, the concept of operations and maintenance as an integrated service also became firmly established, particularly in sectors such as energy, where continuous asset management is critical.
This decade also saw significant growth in outsourcing. Many companies chose to delegate maintenance activities to specialized firms capable of delivering technical expertise, operational efficiency and access to innovation. This trend helped raise the overall standard of the sector and fostered the development of a specialized maintenance services ecosystem.
In the 2020s, the transformation has entered a new phase driven by data. Accelerated digitalization, combined with the rise of technologies such as the Internet of Things, big data and artificial intelligence, is redefining how industrial assets are managed. Today, facilities generate real-time data that enables continuous monitoring of their condition. Advanced systems can detect anomalies, predict failures and recommend actions before any incident occurs.
This approach, known as advanced predictive or prescriptive maintenance, represents the highest level of maturity in industrial asset management. It is no longer just about anticipating failures, but about continuously optimizing equipment performance based on multiple variables. Maintenance thus becomes a key tool for improving efficiency, reducing costs and minimizing environmental impact.
One of the sectors where this evolution has been most evident is energy, particularly renewable energy. The expansion of wind and solar power in Spain has given rise to a highly specialized operations and maintenance industry, built on remote monitoring, data analytics and predictive interventions. Managing thousands of distributed assets has driven the development of advanced control centers and the use of technologies such as drones and smart sensors.
In this context, maintenance has also taken on a strong sustainability dimension. Optimizing equipment performance not only improves profitability but also reduces energy consumption and emissions, contributing to energy transition goals. Operational efficiency and sustainability have effectively become two sides of the same coin.
Four decades on, industrial maintenance in Spain has evolved from an auxiliary function into a strategic pillar. The difference between an efficient plant and an inefficient one no longer depends solely on installed technology, but on how it is managed over time. In an increasingly competitive environment—where reliability, efficiency and sustainability are critical—maintenance now sits at the center of decision-making.
Looking ahead, the future points toward greater integration between operations, maintenance and technology. Tools such as digital twins, augmented reality and artificial intelligence will continue to reshape the sector in the years to come. But beyond these innovations, the fundamental shift has already taken place: industry has moved from reacting to failures to anticipating them. And in that transition, maintenance has gone from being invisible to becoming one of the quiet engines of industrial competitiveness in Spain.