Official measure title
Sistema de automatización y control para edificios del sector terciario (BACS).
What this sheet covers
Sheet TER050 covers “Sistema de automatización y control para edificios del sector terciario (BACS).”. It is a standardised sheet under Spain’s CAE scheme: it defines the scope of the measure and the official method for quantifying final-energy savings when its conditions are met.
Operational summary
Who it is for
Hotels, offices, retail, healthcare and education buildings in the services sector that install or upgrade a building automation and control system (BACS/BMS).
What is installed
The control system is installed or extended to reach a higher BACS class under UNE-EN ISO 52120-1, covering HVAC, ventilation, domestic hot water and lighting control plus supervision functions.
Where the saving comes from
The saving comes from BAC efficiency factors: time scheduling, demand-based control, zone temperature control and consumption-drift detection cut energy use without replacing equipment.
How to apply it
Before matching a project to TER050, confirm that the baseline, implemented solution, dates, equipment or areas and evidence fit the scope in the PDF. Then apply its formula using traceable data and collect the required documentation.
Eligibility conditions
- Services-sector building in operation with evidenced energy consumption.
- Initial and final BACS classes documented under UNE-EN ISO 52120-1.
- Effective class improvement (for example from D or C to B or A) for the affected services.
- Reference area or consumption evidenced by invoices or the energy certificate.
- Commissioning and parameter setting certified by the integrator.
- Work carried out within the period accepted by the CAE scheme.
Calculation method
Final energy saving
Saving (kWh/year) = Σ (C_service × (f_BAC,initial − f_BAC,final))
- C_service
- annual consumption of the affected service (HVAC, DHW, lighting), in kWh/year.
- f_BAC,initial
- BAC efficiency factor of the starting class.
- f_BAC,final
- BAC efficiency factor of the class achieved.
Evidence to collect
- 01Technical report stating initial and final BACS class per service.
- 02Invoice for the system, sensors, actuators and commissioning, with proof of payment.
- 03Control point list and screenshots from the supervision system.
- 04Previous-year energy invoices or the building energy certificate.
- 05Commissioning certificate signed by the integrator.
- 06Proof of building ownership and the CAE assignment agreement.
Mistakes that get the application refused
These are the most frequent refusal grounds during application review. Avoiding them speeds up CAE validation.
- Declaring a final BACS class without the functions actually deployed and configured.
- Applying the saving to services the system does not control.
- Using estimated consumption with no invoices to back it.
- Installing hardware without schedules or setpoints, so consumption does not change.
- Not keeping the point list or supervision evidence.
Supporting annexes
TER050: frequently asked questions
Is a connected thermostat enough for TER050?
No. The sheet requires a building automation and control system with the functions of the declared class under UNE-EN ISO 52120-1, not a standalone device.
Can it apply when an older BACS already existed?
Yes, provided the initial class is documented and the step up to a higher class is evidenced for the affected services.
Which consumption is used as the baseline?
The actual annual consumption of the controlled services, evidenced with energy invoices from the period before the works.
Does it work across several buildings of one chain?
Yes, but each building forms its own file with its initial class, final class and consumption data.
How long does the file take?
It depends on document availability. With a complete report, invoices and commissioning certificate, the technical review proceeds without further requests.
Related guide
TER050: turn the BACS obligation into CAE revenue
The TER050 measure certifies and monetises the savings from installing a building automation and control system (BACS) in a tertiary building. Requirements and calculation.
Related guideOther sheets in the same sector
See the whole sector- TER010 — Rehabilitación de la envolvente térmica de edificios terciarios existentes con superficie afectada mayor del 25%.
- TER011 — Rehabilitación de la envolvente térmica de edificios terciarios existentes con superficie afectada mayor del 25% (Canarias).
- TER020 — Rehabilitación de la parte opaca de la envolvente térmica de edificios terciarios con superficie afectada inferior o igual del 25 % de la envolvente térmica final.
- TER021 — Rehabilitación de la parte opaca de la envolvente térmica de edificios terciarios con superficie afectada inferior o igual del 25 % de la envolvente térmica final (Canarias).
- TER030 — Sustitución del sistema de iluminación por sistema con fuentes luminosas y/o luminarias tipo LED.
- TER040 — Sustitución de generador de climatización por bomba de calor aire-aire, aire-agua o agua-agua.
