When buildings learn to think
Business case
When buildings
learn to think
From its Paris location as well as its offices in Germany and Italy, Advizeo supports more than 250 customers with a team of 120 employees.
From its Paris location as well as its offices in Germany and Italy, Advizeo supports more than 250 customers with a team of 120 employees.
Through Eficia and Advizeo, Hager helps buildings shift from passive consumption to intelligent energy performance – cutting waste, costs and emissions.
Flexibility is not about reducing comfort. It is about shifting some consumption to the moments when energy is cleanest and cheapest.
By the numbers
energy reduction through Advizeo
savings through Eficia
avoided consumption (by 2025)
avoided emissions (by 2025)
households’ equivalent electricity use avoided
Energy is one of the most significant operating costs for buildings in Europe. Yet many buildings consume far more than they need. Heating runs outside occupancy hours. Lighting stays on in empty spaces. Ventilation operates at full capacity in half-occupied buildings. A considerable share of consumption delivers little value – while still generating costs and emissions.
“Even modern buildings can be inefficient if not properly monitored and systems are not regularly adjusted to the actual occupation of the building,” says Cédric Le Liboux, Digital Growth Senior Manager.
Two platforms, one mission
Hager addresses this through two digital energy management companies. Advizeo focuses on consumption monitoring across building portfolios – aggregating data from meters, sensors, and building management systems to highlight anomalies and also identify improvements thanks to Energy Management consulting services. The service typically enables 15 to 20% energy reduction without heavy investment. Eficia concentrates on building operations, using AI to monitor and adjust heating, ventilation, and lighting in real time – delivering savings of up to 40% depending on building context while maintaining or even improving occupant comfort.
Most buildings are not inefficient by design. They are inefficient by default – because no one is watching in real time.
Beyond kilowatt-hours
Both platforms analyse load profiles, weather data, and occupancy patterns to optimise contracted power capacity and prevent unnecessary demand peaks. This enables peak shaving – reducing consumption during high-price periods while maintaining comfort. As grids rely increasingly on renewables, the ability to shift demand becomes a resource for stability. Eficia anticipates peaks and adjusts accordingly. Its data platform enables coordinated demand shifts across entire building portfolios.
Management Summary
The challenge: many buildings consume far more energy than they need – generating costs and emissions without delivering value.
The approach: two platforms – Advizeo for monitoring and analytics, Eficia for AI-driven real-time optimisation – make consumption visible and actionable.
The impact: 15–20% reduction through Advizeo; up to 40% through Eficia. 1.290 GWh avoided consumption and 98 ktCO₂e avoided emissions in 2025.
Impact at scale
In 2025, the two platforms together enabled 1.290 GWh of avoided consumption and 98 ktCO₂e of avoided emissions – equivalent to the annual electricity use of approximately 320.000 households. For building operators, this translates directly into lower energy bills and reduced exposure to volatile pricing. And for building occupants, a better regulation means improved day-to-day comfort.
Want to know more?
Find additional information in the Environment section of the Hager Sustainability Report 2025/26.