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ADENE and Energy Certificate in Portugal

Understand the role of ADENE, how the SCE works, who can issue an energy certificate, and why this assessment matters when selling, renting, buying, or upgrading property in Portugal.

ADENE, SCE, Qualified Expert and Energy Certificate ecosystemDiagram showing ADENE, SCE, Qualified Expert, Energy Certificate and Renovation Passport as connected stages.How the system fits togetherA simplified view for buyers, owners and investorsADENEPortugal's energy agencySCECertification frameworkQualified ExpertIssues the certificateRegistered within the SCECertificado EnergéticoClass, performance andupgrade signalsRenovation PassportStep-by-step buildingupgrade roadmapNational energy certification processSCE · ADENE · EPBD 2024/1275
Official ADENE / SCE contextClear guidance for buyers and property ownersDirect path to InspectOS services

What ADENE is and why it matters

ADENE - Portugal's energy agency - is a non-profit entity focused on energy efficiency and sustainability. According to ADENE itself, its mission is to support the energy transition by helping implement public policy and by empowering citizens, businesses, and institutions.

Its work spans building energy efficiency, water efficiency, sustainable mobility, circularity assessment, technical training, energy literacy, and the management of Portugal's building energy certification system.

Energy efficiency

ADENE operates in building performance, improvement measures, consumer guidance, and the technical framework behind better energy outcomes.

Systems and tools

It oversees and supports tools linked to certification, water efficiency, circularity, and technical implementation.

Policy delivery

It helps turn national and EU energy policy into practical systems, methodologies, and market-facing instruments.

SCEPortugal's national building energy certification framework
CEA key document in many real estate transactions
EPBDEU rules pushing stronger performance, inspection and renovation logic
RoteiroGrowing link between certification and planned building upgrades
From framework to action - 3 steps1UnderstandADENE, SCE and certification2InspectBook a qualified inspection3ImprovePlan upgrades and passport

How the SCE and the energy certificate work

The energy certificate classifies a property's energy performance and is required in several real estate transactions. ADENE states that certificates are issued exclusively by professionals designated as Qualified Experts within the national certification system.

On the official SCE portal, the certificate is also presented as a practical tool for identifying improvement measures, supporting renovation decisions, strengthening a property's market positioning, and in some cases helping access tax or financing advantages.

  • Classifies the property's energy performance
  • Helps identify improvement measures
  • Matters for sale and rental transactions
  • Provides a basis for renovation planning

Who actually issues the energy certificate

ADENE

Manages the framework

SCE

National system

Qualified Expert

Issues the certificate

This is where wording matters. ADENE manages the national framework for energy certification, but the certificate itself is issued by a Qualified Expert within the SCE. So the accurate way to describe it is not that ADENE directly issues every certificate, but that the process takes place inside a national system managed by ADENE.

Recommended wording

Certificate issued by a Qualified Expert within the SCE, Portugal's national system managed by ADENE.

Why the energy certificate matters to buyers and property owners

More than just a compliance document

According to the SCE portal, an energy certificate should not be treated as box-ticking paperwork: it helps reveal how a property is likely to perform, what it may cost to run, where improvements may be needed, and how to approach purchase, sale, rental, or upgrade decisions with more clarity.

For owners

It supports property marketing, clarifies the current energy rating, and can help prioritise works before sale or rental.

For buyers

It helps interpret the home's likely energy behaviour and spot future comfort, cost, or upgrade issues.

For renovation

It provides a useful starting point for a wider building-improvement plan and a future renovation passport.

Typical issues that matter in an energy assessment

Thermal envelope and insulation
Windows and opening performance
Heating and cooling systems
Domestic hot water systems
Ventilation and indoor comfort
Potential energy savings
From diagnosis to staged renovationFrom diagnosis to staged renovationCurrent stateCertificadoShows current performanceImprovedRenovationPassportStaged upgraderoadmap

ADENE, the EPBD and where building rules are heading

ADENE states that it is supporting Portugal's transposition of Directive (EU) 2024/1275 on the energy performance of buildings. The themes highlighted include updated minimum requirements, new certificate layouts, zero-emission buildings, stronger inspection of technical systems, indoor environmental quality, and more structured renovation instruments.

In plain terms, this means buyers and property owners should think beyond today's energy label and start looking at future compliance, refurbishment needs, and long-term building performance.

What a Renovation Passport is

ADENE has worked on this through projects such as iBRoad2EPC,which links energy certification with the integration of Building Renovation Passports. The goal is to turn the energy diagnosis into a staged, building-specific upgrade roadmap.

For owners and buyers, this is valuable because it moves the conversation beyond a simple rating and towards a practical plan with priorities, sequencing, and a clearer sense of long-term value.

Reference visuals from ADENE projects

Os projetos iBRoad2EPC e EPBD.wise ajudam a enquadrar visualmente a ligação entre certificação energética, passaportes de renovação e implementação da política europeia para edifícios.

Visual oficial do projeto ADENE iBRoad2EPC relacionado com passaportes de renovação de edifícios
Visual do projeto iBRoad2EPC, dedicado à integração de Passaportes de Renovação no quadro da certificação energética. ADENE
Visual oficial do projeto ADENE EPBD.wise sobre implementação da EPBD em edifícios
Visual do projeto EPBD.wise, ligado à implementação eficaz da EPBD no setor dos edifícios. ADENE

How InspectOS can help

InspectOS can turn this technical framework into clear next steps, helping owners, buyers, and investors move forward with the right service at the right moment.

For fuller due diligence, complement this guide with DGEG gas inspection context and the role of Ordem dos Engenheiros in technical property assessment.

Energy Certificate

Support with booking a qualified inspection for the energy certificate within the SCE framework.

Book energy certificate

Pre-Purchase Inspection

For buyers who want to go beyond the existing document and better understand the property's real technical condition and risks.

View pre-purchase inspection

Renovation Passport

For structuring a building-upgrade plan with staged logic and clearer energy-improvement priorities.

View renovation passport

Need help with the energy certificate or a renovation passport?

Use this page to understand the ADENE / SCE framework first, then move ahead with the service that fits your situation with the InspectOS team.

Frequently asked questions about ADENE and the energy certificate

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