GACS Legislation from 2026: Are You Ready?
What Exactly Does the GACS Legislation Involve?
A Building Automation and Control System (GACS) continuously collects, analyzes, and reports energy consumption data. Since the legislation is a national implementation of European directives, buildings with primary energy use above 290 kWh/m² per year must meet several requirements.
First, active energy control systems must be installed. Additionally, energy consumption must be monitored at room, zone, or system level. Occupants should gain insight into consumption data, while the system highlights energy-saving opportunities. This applies to offices, schools, healthcare facilities, shopping centers, and sports facilities.
Moreover, GACS encourages a digital infrastructure. Installations such as HVAC systems, solar panels, heat pumps, and charging stations need to be interconnected. This creates a centralized platform capable of generating automatic reports. Consequently, buildings can meet the GACS requirements and optimize energy management.
Why Prepare Now?
Although the law takes effect in 2026, postponing preparation is risky. Many buildings currently do not meet the requirements. Therefore, it is crucial to develop a strategy early. By acting now, you avoid delays and high costs in the future.
Insight and Structure as a Starting Point
Successful GACS implementation begins with understanding the building’s current energy profile. Once consumption patterns are clear, a comprehensive plan can be created for full compliance.
Key Steps Toward GACS Compliance
A structured preparation includes several steps to ensure all installations and measurement points are correctly connected:
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- Identify appropriate measurement points at room, zone, and system levels.
- Check whether existing meters, dongles, and systems comply with GACS requirements.
- Inventory all technical installations, including HVAC, solar panels, battery storage, heat pumps, and charging stations.
- Determine necessary connections and protocols for real-time data collection.
- Set up analysis tools and reporting according to GACS legislation.
In addition, starting early offers multiple advantages. Immediate insight into energy consumption highlights waste, while smart control ensures more efficient use of installations. As a result, early action can lead to energy savings even before 2026.
Differences Between GACS 2026 and 2030
While many organizations focus on 2026, requirements will tighten in 2030. By that time, buildings must provide more detailed data, achieve higher accuracy, and support automatic analysis. These additional standards form a key part of GACS 2030.
| Aspect | GACS 2026 | GACS 2030 |
|---|---|---|
| 1. Monitoring Level | Room, zone, or system level mandatory | More detailed levels and additional data points required |
| 2. Reporting | Basic reporting mandatory | Advanced automatic reporting required |
| 3. Installation Requirements | Minimum digital connection between systems | Full integration and real-time control |
| 4. Energy Efficiency | Insight mandatory | Optimization mandatory |
The Role of Enny Insight
Enny Insight from Xemex is a modular energy management system that ensures buildings become GACS-ready in a scalable way. It collects real-time data per room or installation and generates historical analyses. Consequently, optimization opportunities become transparent, and the system can automatically produce reports.
In addition, Enny Insight easily integrates sensors, dongles, and existing installations. This makes it suitable for single buildings as well as portfolios of multiple locations. Moreover, it evolves with future GACS requirements, ensuring compliance with both 2026 and 2030 standards.
Who Is This Relevant For?
The GACS obligation affects several stakeholders:
- Installers: can add value by advising and implementing measurement infrastructure.
- Building Owners and Managers: gain insight into energy use and ensure compliance with Enny Expert or Master solutions.
- ESCOs and Energy Advisors: can offer integrated monitoring and savings services within the GACS framework.
Early preparation allows all stakeholders to benefit from both efficiency and compliance.
GACS-Ready and Future-Proof Buildings
Implementing a GACS system not only ensures compliance but also provides buildings with insight and control. By starting early, you avoid delays and increase energy efficiency immediately. Enny Insight offers a reliable foundation for real-time monitoring, analysis, and reporting. As a result, buildings are compliant with GACS 2026 and fully prepared for GACS 2030.
Frequently Asked Questions about GACS and Enny Insight
What are the rules for a GACS system in office buildings?
Office buildings with a primary energy use above 290 kWh/m² per year must have a GACS system from 2026. This system monitors energy consumption at room, zone, or system level, generates automatic reports, and highlights energy-saving opportunities. Xemex supports compliance with Enny Insight, which centralizes all relevant data.
What is the GACS mandatory requirement from 2030?
From 2030 onwards, the requirements will be stricter. Buildings must provide more detailed data points, integrate systems more deeply, and support advanced automatic analyses. Enny Insight evolves alongside these requirements, helping building managers comply with GACS 2030.
What is the GACS program?
The GACS program includes all guidelines, requirements, and support tools for implementing a Building Automation and Control System in commercial buildings. Xemex provides Enny Insight as an integrated platform to meet all GACS obligations.
What does the abbreviation GACS stand for?
GACS stands for Building Automation and Control System. It refers to systems that automatically measure, manage, and optimize energy consumption. Xemex helps buildings implement a complete GACS system via Enny Insight.
What is a GACS inspection?
A GACS inspection checks whether a building meets legal requirements, including data completeness, reporting quality, and system connectivity. Enny Insight makes it easy for owners and managers to demonstrate compliance during inspections.
Always ready to start
Wondering what we can do for your organization? Contact Xemex and discuss your needs with our team. Together we will realize a solution that addresses your energy challenges and opens up new possibilities.
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