Energy efficiency: Reducing consumption and improving performance

Energy efficiency has become increasingly important due to rising energy costs and the decarbonization targets set at European level. The European Union (EU) has established a target of reducing energy consumption by 11.7% by 2030 (compared to the 2020 baseline), while strengthening regulations for buildings, the public sector, and industry.

Energy efficiency is no longer just synonymous with savings but has become a factor in competitiveness, sustainability, and operational resilience. European studies show that companies implementing structured energy efficiency measures can reduce consumption by 10% to 30% without compromising performance. In addition, regulatory pressure and ESG assessment mean that organizations are increasingly evaluated for their environmental impact, their ability to reduce emissions, and their responsible management of resources.

In this context, understanding what energy efficiency is, its benefits, and the strategies available is crucial for any entity that wants to work in an intelligent, sustainable, and economically robust way.

What is energy efficiency, and why is it important?

Energy efficiency has become one of the fundamental pillars for organizations, governments, and consumers seeking to reduce costs, improve performance, and minimize environmental impact. In a context marked by rising energy prices, decarbonization targets, and the need for greater competitiveness, understanding and applying energy efficiency principles is essential. Before exploring strategies and solutions, it is important to clarify the concept and understand the benefits that result from it.

Definition of energy efficiency

Energy efficiency refers to the ability to use less energy to perform the same function, achieving the same level of performance or the same productive outcome. The goal is to eliminate waste, optimize equipment, improve processes, and use technologies that enable more responsible energy consumption.

In practice, energy efficiency can translate into:

• Equipment that consumes less energy for the same output.
• Industrial processes with fewer losses.
• Buildings that maintain thermal conditions with lower energy consumption.
• Management systems that automatically monitor and adjust consumption.

Energy efficiency is not just a technical concept, but a strategic approach to doing more with less while sustaining or increasing performance.

Economic, environmental, and operational benefits

Implementing energy efficiency measures generates a range of benefits that go far beyond simply lowering consumption. Economically, it translated into a direct reduction in energy-related costs, allowing organizations to gain greater control over their operating expenses and increase their competitiveness.

From an environmental standpoint, energy efficiency contributes to reducing greenhouse gas emissions and helps meet national and European decarbonization targets. This impact is particularly relevant in a context where organizations are increasingly evaluated based on their environmental responsibility and alignment with ESG policies.

Operationally, energy efficiency promotes more stable processes, more reliable equipment, and improved internal working conditions. These economic, environmental, and operational benefits are interconnected and mutually reinforcing, making energy efficiency not only a cost-saving measure but also an essential strategy for organizations seeking to promote their corporate sustainability, resilience, and performance.

How to improve energy efficiency

Improving energy efficiency requires a combination of behavioral changes, technological upgrades, and more conscious energy management. Whether in a building or an industrial facility, progress starts with identifying waste, moves forward with implementing improvements, and solidifies through continuous monitoring of results. By understanding the available approaches and decision-support tools, organizations can reduce costs, increase performance, and contribute to more sustainable operations. Below are some energy efficiency tips that can help boost your organization’s performance.

Low-investment practices to optimize energy performance

Before considering major investments, many organizations can reduce energy consumption through simple actions and operational or behavioral adjustments. Low-investment measures include: establishing routines for turning off equipment outside working hours, calibrating air conditioning and thermal process temperatures, eliminating compressed air leaks and thermal infiltrations, improving natural ventilation and daylighting, and implementing internal awareness campaigns for efficient energy use. Simple tools, such as energy efficiency calculators, can quickly estimate potential savings and help prioritize actions using real data, supporting initial diagnostics and guiding effective improvements.

Technologies to improve energy efficiency

Adopting more efficient technologies plays a central role in sustainably reducing energy consumption, both in buildings and industrial environments. Examples include LED lighting with smart controls, high-efficiency motors and variable speed drives, efficient air conditioning and refrigeration systems, sensors and automation to adjust consumption to actual use, and digital platforms for real-time monitoring. Integration with energy management systems allows patterns to be identified, loads to be optimized, and consumption peaks to be reduced, enabling data-driven decisions and enhancing return on investment.

Energy savings performance contracts (ESPC)

Energy savings performance contracts offer an effective model for implementing improvements without upfront investment. Through Energy Service Companies (ESCOs), opportunities are identified, savings targets are set, and technological and operational solutions are implemented, with payment based on the actual savings achieved. This model applies to both buildings and production facilities and is especially useful when dealing with aging infrastructure, limited internal resources, or the need to accelerate cost reduction. In addition to reducing consumption, ESPCs support knowledge transfer, modernization, and greater discipline in measurement and verification. This model also helps strengthen companies’ commitment to sustainability goals and reduce their carbon footprint.

Energy efficiency in different contexts

Improving energy efficiency varies depending on the type of facility, consumption profile, and operational requirements. The way energy is used in an industrial setting differs significantly from that of a commercial space or office building. For this reason, strategies, metrics, and priorities must be tailored to the specific realities of each sector.

Industrial energy efficiency

In industrial environments, energy efficiency is closely linked to the performance of production processes and equipment reliability. Energy is mainly consumed by electric motors, compressed air systems, steam generation, refrigeration, pumping, and furnaces, which require detailed technical analysis and continuous measurement to detect losses and inefficiencies. Process optimization, integration of variable speed drives, heat recovery, and leak reduction in circuits are common interventions with significant impact. In addition, real-time monitoring, combined with energy management systems and methodologies such as industrial benchmarking, allows performance comparisons between production lines and guides investment decisions based on robust technical data.

Commercial energy efficiency

In commercial spaces, energy consumption is mainly associated with air conditioning, lighting, refrigeration, and operational support equipment. Variability in occupancy, business hours, and user comfort make automation and control systems essential for reducing energy use without affecting customer experience.  Centralized technical management systems, LED lighting with sensors, setpoint optimization, and scheduled maintenance of HVAC systems are measures with high savings potential. Energy efficiency in this context also contributes to reducing operating costs, increasing the attractiveness of spaces, and strengthening compliance with environmental policies and ESG goals in the tertiary sector.

Building energy efficiency

In buildings, energy efficiency is closely related to thermal performance, the quality of the building envelope, ventilation systems, and the behavior of air conditioning systems. Therefore, rational energy use begins with a detailed assessment of consumption, complemented by methodologies such as energy benchmarking of buildings, which allow performance to be compared between similar facilities and deviations to be identified. Measures such as reinforced insulation, smart load management, integrating high-efficiency equipment, and ongoing monitoring help reduce energy consumption and improve indoor comfort. In public, residential, healthcare, or administrative buildings, energy efficiency plays a strategic role in reducing emissions and complying with regulatory and certification requirements.

Energy efficiency in data centers

Energy efficiency in data centers is a unique—but increasingly critical—challenge due to the high energy demands of servers, network infrastructure, and especially cooling systems. These environments require strict management of thermal loads, airflow, and technical redundancy, with metrics like Power Usage Effectiveness (PUE) used to measure effective energy performance. Measures such as the segregation of hot and cold aisles, server virtualization, intelligent temperature control, and continuous monitoring make it possible to reduce consumption without compromising reliability or operational capacity. In a context of increasing digitalization and sustainability pressure, energy-efficient data centers not only reduce costs but also directly support environmental goals.

How the Kaizen approach drives energy efficiency

Energy efficiency is directly linked to how operations are designed, executed, and improved over time, which reinforces the relevance and impact of Lean methodologies and the Kaizen approach in this context. By focusing on waste elimination, process stability, and variability reduction, these methodologies naturally drive operational improvement, allowing fewer resources to be used to achieve the same result.

The Kaizen approach to operations reinforces standardization and continuous monitoring, making it possible to detect consumption deviations, act quickly, and sustain gains over time. As a result, energy efficiency shifts from a one-time intervention to a continuous process, fully embedded in organizational culture and aligned with strategic goals for competitiveness, sustainability, and performance.

Programs, incentives, and regulations

The promotion of energy efficiency is supported by a growing number of programs, policies, and regulatory frameworks that aim to accelerate consumption reduction and stimulate the adoption of more efficient technologies. In both the public and private sectors, these mechanisms provide technical guidance, financial support, performance benchmarks, and management structures that help organizations implement improvements in a structured and measurable way.

Energy efficiency programs

Energy efficiency programs aim to support organizations in reducing consumption and improving energy performance. These programs may include energy audits, action plans, specialized technical support, training for operational teams, performance assessments, and continuous monitoring. Many of these programs are guided by internationally recognized methodologies and incorporate metrics that help quantify results, track progress, and ensure sustainable improvements over time. For energy-intensive sectors, these programs offer a structured way to optimize processes, modernize systems, and strengthen competitiveness.

Incentives for energy efficiency

Incentives aim to reduce the financial barrier associated with equipment replacement, technology modernization, and the implementation of energy management systems. These mechanisms can take the form of subsidies, deductions, subsidized financing, or partial reimbursement after performance verification. They are particularly valuable for projects involving high-efficiency lighting, HVAC system modernization, industrial optimization, smart monitoring, or the integration of control technologies. For organizations, these incentives accelerate decision-making, shorten payback periods, and align investments with environmental policies and emission reduction targets.

Energy efficiency standards and certification

Energy efficiency standards establish minimum performance requirements for equipment, buildings, and systems, thereby ensuring consistent quality and reducing energy use. These standards guide the market, encourage the phase-out of outdated technologies, and simplify technical comparisons between solutions. The Energy Star certification, for example, is a widely recognized U.S. program that identifies products, equipment, and buildings that meet strict energy-efficiency criteria, serving as a mark of performance and compliance. For businesses and institutions, such references simplify procurement, reduce operational risk, and build credibility with customers, investors, and regulators.

ISO 50001 and energy management systems

ISO 50001 is the international standard that defines the requirements for an energy management system focused on continuous performance improvement. It enables organizations to establish policies, set goals, monitor consumption, implement corrective actions, and evaluate progress based on verifiable indicators. Adopting this standard promotes operational discipline, integration with ESG strategies, sustained cost reduction, and greater maturity in the technical management of facilities.

Trends and the future of energy efficiency

The future of energy efficiency will be marked by the convergence of digitalization, advanced automation, artificial intelligence, and increasingly stringent decarbonization targets. Continuous, real-time monitoring is becoming the standard across buildings, commercial operations, and industrial facilities, enabling dynamic energy management and data-driven decision-making. The integration of energy management systems with IoT platforms and predictive algorithms will enable the anticipation of usage patterns, the automatic load adjustment, and the reduction of waste, often without the need for direct human intervention. At the same time, the energy transition and evolving regulatory landscape are reinforcing energy efficiency as a key pillar in environmental policies and ESG strategies.

As energy costs become more volatile and climate targets more ambitious, energy efficiency is moving beyond its traditional role as a cost-saving measure but will become a strategic component of competitiveness, sustainability, and operational resilience.

Still have some questions about energy efficiency?

What is commissioning and retrocommissioning in the context of operational efficiency?

Commissioning is a methodology that ensures technical systems—such as HVAC, automation, lighting, or thermal networks—are designed, installed, configured, and started up in alignment with project specifications and energy performance requirements. The process involves functional testing, calibrations, control validation, and documentation review to ensure that expected performance is achieved during real-world operation. Retrocommissioning applies the same principles to existing buildings or facilities. It focuses on identifying operational faults, incorrect configurations, degraded performance, and unnecessary energy use. These practices are especially relevant because much of the energy waste in facilities doesn’t stem from inefficient equipment, but rather from poorly adjusted systems, outdated controls, or improper operation. By restoring optimal system parameters, commissioning and retrocommissioning deliver significant efficiency gains—often at a lower cost than replacing equipment or investing in new technology.

Does energy efficiency contribute to ESG certifications and sustainability reports?

Yes. Energy efficiency plays a critical role in ESG performance and in enhancing the quality and credibility of sustainability reporting. Under the Environmental (E) pillar, reducing energy consumption directly supports lower greenhouse gas emissions, more responsible resource use, and alignment with European decarbonization targets. As a result, energy-related indicators are now mandatory or strongly recommended in many ESG standards and reporting frameworks. Thus, energy efficiency initiatives not only reduce costs and improve operations but also strengthen ESG positioning and add reputational and strategic value to organizations.