25 min read
Twelve panels on the roof of a house near Loulé, an inverter in the technical room, battery storage in the garage, together worth a solid five-figure sum. The installer has been paid, the system is running, the electricity bill has fallen to a third. And the insurance folder is still sitting unchanged on the shelf because, after all, the house is insured.
This is exactly where foreign homeowners in Portugal often make the wrong assumption. A rooftop system may look like an obvious extension of the house, but Portuguese insurance can treat it as two separate risks at the same time: property that must be correctly declared and valued, and liability arising from operating a power-generation installation. Whether the system belongs at all to what your seguro multirriscos habitação insures is not decided by the fact that it is permanently fixed to the roof. It is decided by a definition in the first pages of the policy terms. In the wording of one of Portugal’s largest insurers, photovoltaic self-generation systems are expressly taken out of the building definition. In another, they are expressly included.
There is a second point that is even less widely known and can be more expensive than any panel: anyone generating electricity for self-consumption in Portugal operates, for energy-law purposes, an installation for which the law requires its own liability insurance. And ordinary home-insurance liability commonly excludes precisely those risks that must have a separate compulsory policy.
- A photovoltaic system is not automatically part of the insured building. In the published terms of one major Portuguese insurer, energy microgeneration systems are expressly excluded from the building definition except for compulsory fire cover.
- Solar thermal is not photovoltaic. The same terms treat only painéis solares térmicos as part of the building, and the additional cover for breakage and falling panels there applies only to thermal collectors. A second major insurer does the opposite: its definition includes painéis solares ou fotovoltaicos as part of the building.
- For installations above 700 watts, the law requires liability insurance. Article 98 of Decreto-Lei 15/2022 refers to paragraphs 2 to 4 of Article 11, and paragraph 4 is the range above 700 W up to 30 kW. The common claim that the duty starts only at 30 kW is too narrow: 30 kW is the threshold between prior notification and registration, not the insurance threshold.
- The liability section of your home insurance will usually not replace this compulsory cover. Both policy wordings reviewed exclude liabilities for which the law requires a specific compulsory insurance.
- Madeira has had its own regional law since 12 May 2026. The same power thresholds apply, but the liability-insurance duty is written expressly into the regional law and breaches can be fined from €100 to €3,740 for individuals.
- Tell your insurer about the installation. Circumstances that would have affected the contract are subject to a 14-day notification period from knowledge; failing to notify can lead to a proportional reduction after a claim.
Does the system actually belong to the insured building?
Whether a photovoltaic installation belongs to the insured building is determined entirely by the definition of edifício in your policy wording, and that definition differs across the Portuguese market. There is no single national answer, neither an automatic yes nor an automatic no. The first question is therefore not “is my system insured?” but “how does my contract define it?”
One insurer expressly takes it out of the building definition
In the general terms of Fidelidade Casa Mais (version MR010, June 2022), permanent fixtures installed by the owner generally form part of the building, but the wording makes an exception for installations “relacionadas com o exercício de atividades profissionais e dos sistemas de microgeração de energia, salvo no que respeita à cobertura obrigatória de incêndio”. In plain English: small-scale energy generation systems do not belong to the building definition there, except for compulsory fire cover.
Instead, this policy creates a separate category of insured property, the sistema de microgeração de energia. It is defined as small-scale electricity generation from renewable sources, expressly including painéis fotovoltaicos. According to the wording, the category includes the equipment and fixed installations, cables to batteries, building distribution and meter, as well as support structures. The insurer therefore recognises the installation in detail, but it needs to appear as its own valued item in your condições particulares. If it does not, then outside compulsory fire cover it may simply not be insured.
Solar thermal is not photovoltaic
One detail regularly causes confusion. The same wording does treat some solar panels as part of the building: “os painéis solares térmicos instalados no edifício, respetivos depósitos, condutas, bombas, aparelhos e acessórios”. These are collectors used for hot water, not photovoltaic modules used for electricity. Treating the two phrases as interchangeable can make a policy appear broader than it actually is.
A second insurer does the opposite
In the published general and special terms of Allianz Casa (document 2042, version 01/2025), painéis solares appear expressly in the list of items permanently attached to the building, alongside antennas, alarm systems and lifts. The definition is wider: “painéis solares ou fotovoltaicos de captação de energia, sem fins específicos de venda de energia elétrica, que sejam propriedade do segurado”, together with fixed installations, cables to batteries and building distribution, and support structures.
Two policy wordings, two opposite answers to the same question. This is why any blanket statement about photovoltaic cover in Portugal is unreliable, even when it sounds reassuring. Check how your own condições gerais define the building before relying on a sentence found online. It is one of the first things we check when reviewing House Insurance in Portugal.
One short phrase with consequences: “not specifically for the purpose of selling electricity”
The wider definition applies to systems “sem fins específicos de venda de energia elétrica”. If you regularly export surplus and receive payment for it, obtain written confirmation that your system still falls within the definition. Self-consumption with occasional surplus is different from a system built specifically to sell power, but the insurer will interpret that line if a dispute arises.
Four components, four different cover questions
From an insurance perspective, a solar installation is not one object but at least four, and each may depend on a different section of cover.
Módulos Property damage
The modules themselves, support structure and guying. Whether they count as building or need their own insured item depends on the policy definition. In both policy wordings reviewed, damage arising from installation, removal and maintenance is excluded.
Inversor Electronics
Inverter, controller, monitoring and battery storage. These components often fail through surge, short circuit or overheating rather than physical breakage. That makes riscos elétricos or separate electronic-equipment cover important.
Responsabilidade civil Liability
Damage the installation causes to third parties. This is where energy law requires a separate compulsory policy and where the ordinary home-liability section typically excludes the risk. The detailed explanation follows below.
Perda de produção Generation loss
The self-generated electricity you lose while the system is out of service. In ordinary home insurance this is normally not insured unless specifically added.
In practice, that means four questions rather than one. Are the panels named and valued? Is the electronic equipment covered for electrical causes? Is the liability correctly insured? Does lost production matter for you? Only when all four are answered do you know what a breakdown may cost.
UPAC: why your system is legally a power-generation unit
Once the installation exceeds 700 watts, Portuguese energy law no longer treats it as just another domestic fixture. It becomes a generation unit subject to its own administrative procedure. The term is UPAC, short for Unidade de Produção para Autoconsumo, meaning a generation unit for self-consumption. From that classification follow the administrative obligations, including the insurance duty.
Four levels, with one threshold deciding the procedure
Article 11 of Decreto-Lei 15/2022, which structures Portugal’s electricity system, divides the procedure according to installed capacity.
| Installed capacity | Procedure | Source |
|---|---|---|
| up to 700 W, with no export of surplus | Exempt from the procedure | Article 11(5) |
| above 700 W up to 30 kW | comunicação prévia, prior notification | Article 11(4) |
| above 30 kW up to 1 MW | registo prévio plus certificado de exploração | Article 11(3) |
| above 1 MW | licença de produção e de exploração | Article 11(2) |
For context, 700 watts is roughly two modern modules. Any rooftop installation intended to supply a household will normally exceed this by several times and therefore fall at least into the prior-notification level. The exemption is aimed at very small systems, not ordinary domestic roofs.
Above this figure the control procedure begins and, with it, the insurance duty described in Article 98
From here, prior notification becomes registration with an operating certificate
By this date the insurance evidence must be filed again each year
Compulsory liability insurance and the 30 kW misconception
For every UPAC subject to a control procedure, the law requires liability insurance, and according to the source text this begins above 700 watts, not at 30 kilowatts. The 30 kW figure is often repeated in expat guides and online summaries as though it were the insurance threshold. It is not.
What the statutory text actually says
Article 98 of Decreto-Lei 15/2022 is headed Seguro. Its first paragraph says: “A responsabilidade civil decorrente do exercício das atividades previstas nos n.os 2 a 4 do artigo 11.º deve estar coberta por seguro que garanta a responsabilidade civil do titular dos títulos de controlo prévio que habilitam ao exercício das atividades ali referidas.”
The key phrase is the reference to paragraphs 2 to 4 of Article 11. Paragraph 4, as the table above shows, is the prior-notification level covering systems above 700 W and up to 30 kW. Treating the insurance duty as beginning only at 30 kW means overlooking paragraph 4. The only category outside that reference is paragraph 5, the very small installation up to 700 W with no export because it receives no prior-control title.
The DGEG itself reinforces that reading: its requirements for UPAC inspections expressly refer to the “seguro de responsabilidade civil exigido nos termos … art.º 98.º do DL 15/2022”.
What this liability policy must deal with
Article 98 regulates more than the existence of the policy. Several practical requirements matter.
Condition 1
Evidence
Once during the procedure, then every year
- Evidence by certified copy of the contract or declaration from the insurer, uploaded to the electronic platform.
- Then renewed each year by 31 January. This is easy to forget because nobody necessarily reminds you.
Condition 2
Start
Cover from commissioning
- The cover must apply from the date specified as commissioning in the relevant licence, operating certificate or notification.
Condition 3
Scope
Extended reporting and excess
- Events arising during the policy period can be reported up to two years after the policy ends.
- An excess is permitted, but it cannot be used against the injured third party.
Condition 4
Cancellation
The insurer tells the authority
- If the contract ends, the insurer informs the licensing authority within 30 days. An expired policy can therefore become visible to the administration.
A duty without a stated statutory minimum limit
Paragraph 4 of Article 98 leaves the minimum liability limit to a portaria, a ministerial regulation, and paragraph 9 leaves further detail to a despacho on a proposal from the insurance regulator ASF. In the ASF list of compulsory insurances reviewed for this guide, self-consumption did not appear as a fully specified product as of August 2026, and the energy-related compulsory insurances listed there were marked as not yet sufficiently defined.
What this means in practice, and what it does not mean
The absence of a stated statutory minimum limit does not remove the duty in Article 98. It means there is no official minimum sum to use as a simple benchmark. The chosen limit therefore has to reflect the risk: installation size, neighbouring properties and battery storage. Treating the absence of a ministerial limit as a reason to carry no insurance still leaves you without cover if something happens.
The gap: why ordinary private liability may not respond
The liability section of Portuguese home insurance commonly excludes precisely the liabilities for which a separate compulsory policy is legally required. That is where Article 98 and ordinary home-insurance exclusions meet, creating the potential gap.
In one of the cited policies, Responsabilidade Civil Extracontratual excludes “Danos causados por bens que devam ser objeto de Seguro Obrigatório de Responsabilidade Civil”, and elsewhere in the same exclusion list “todos os riscos para os quais, de acordo com a lei, é obrigatório o seguro”. The other insurer says the same more briefly: excluded are losses “que devam ser objeto de seguro obrigatório específico”.
A typical case where both points meet
An inverter overheats in the technical room and the fire spreads to the neighbouring property. Damage to your own building is a question for the property section of the policy. Damage to the neighbour is different: it is third-party liability arising from the operation of a generation installation. The home policy points to the compulsory insurance, and that compulsory insurance only protects you if it was actually arranged.
Check how your own policy treats liabilities subject to compulsory insurance and obtain written confirmation of how your installation is classified.
Madeira: stricter duties and fines
Since 12 May 2026, Madeira has applied the same capacity thresholds as mainland Portugal, but the insurance obligation is expressly written into the operator’s duties and is backed by fines. The basis is Decreto Legislativo Regional 9/2026/M of 11 May 2026, which replaced the earlier regional legislation from 2021.
What differs in Madeira
Article 5 uses the same procedural thresholds: up to 700 W without control, above that to 30 kW notification, above that to 1 MW registration, and above that licensing. The difference appears elsewhere.
- Insurance is a named duty. The operator must, for every controlled UPAC, “celebrar um seguro de responsabilidade civil, para a reparação de danos corporais ou materiais causados a terceiros”.
- There is a fine. Breaches of the insurance provision are expressly sanctionable, with fines from €100 to €3,740 for individuals and €250 to €44,800 for companies. Negligent breaches are punishable at reduced limits, and additional consequences can extend to suspension of the installation.
- Above 6.9 kVA, inspection is compulsory. Installations above this figure must be inspected by an authorised electrical-inspection body before operation, which in practice affects most full rooftop systems.
For the Azores, national law applies unless regional law provides otherwise. Our review did not identify a Madeiran-style regional diploma for the Azores as of August 2026. Anyone installing there should therefore confirm the current position with the competent regional authority rather than simply applying Madeira’s rules by analogy.
Storm, hail and lightning: what happens to the panels
Storm and hail, two of the most obvious risks to rooftop panels, can produce unexpected results because storm cover may exclude the panels themselves. In the cited wording of one insurer, the exclusions under Tempestades expressly include “danos causados a painéis solares, bem como às respetivas estruturas ou espias”, meaning damage to solar panels and their supports and guying.
Hail has no separate section there. It is included within Tempestades, which expressly includes snow and hail. That means the same exclusion can apply to hail damage to the photovoltaic modules. What protects the roof may still not protect the panels fixed to it.
The additional section that may not help
An obvious response would be to add the optional cover for breakage and falling of solar panels. But in the cited wording, that cover applies only to painéis solares térmicos. For photovoltaics, it is therefore the wrong section. What matters in that contract is the separate listing of the sistema de microgeração de energia.
In the second insurer’s wording, breakage cover for antennas and solar panels appears in the regular cover list and, by its language, also includes photovoltaic panels, but only for accidental breakage and only where the cause does not fall under another section. Damage arising during installation, removal or maintenance, and the consequences of defective work, are excluded. Whether your cover is active depends on your own condições particulares.
Lightning and surge follow a different logic. The inverter is rarely damaged by physical breakage; it fails through an electrical cause. That makes riscos elétricos or electronics cover more important than storm or breakage sections. For the wider claim process, see our guide on filing a house insurance claim in Portugal.
What is commonly not covered
The exclusions around photovoltaics often concern exactly the events that happen in real life. The following list comes from the two policy wordings reviewed and illustrates common market treatment. Your own policy can differ in either direction.
Check whether your own policy excludes these areas
- Installation, removal, maintenance and building work. Excluded in both policies reviewed, with one also excluding the consequences of defective work. During this phase the installer’s liability insurance is relevant and, for larger projects, Construction Insurance in Portugal.
- Manufacturing or material defects, wear and lack of maintenance. Manufacturing defects belong primarily with the manufacturer or installer. For ageing and maintenance, records can become important to the insurance claim as well as to warranties.
- Earthquake, unless the separate fenómenos sísmicos section is included.
- Theft without signs of forced entry. The cited theft cover requires entry, breaking-in or false keys. That creates a real issue for freestanding arrays on open land.
- Loss of generation. Lost self-consumption during repairs is normally not part of ordinary home insurance.
Depreciated value instead of replacement value: what may be paid
Even when cover applies, the payment can be well below the cost of a new installation because a separate valuation rule may apply to self-generation equipment. In the cited wording of one insurer, the building is settled at reconstruction cost, while the sistema de microgeração de energia is valued “ao custo de substituição dos bens pelo seu valor em novo deduzido da depreciação inerente à antiguidade, estado de conservação e uso”, meaning new replacement cost less depreciation for age, condition and use.
Example: what depreciation can mean
An 8 kWp system was installed eight years ago for €14,000. An equivalent new system now costs €12,000. A covered event destroys it completely and the excess is €250.
If the claim is valued at replacement cost less depreciation, and the loss adjuster applies a 30% reduction for eight years of age and good condition, the calculation is €12,000 minus €3,600 = €8,400, then minus the excess = €8,150. The new system costs €12,000, leaving a gap of €3,850.
The percentage is illustrative only and is not a fixed figure from the contract. The actual depreciation and whether a different agreement can be made depend on your condições particulares. That is the point to ask about before a claim occurs.
Two conclusions follow. The installation should be entered in the sum insured at a figure that reflects current replacement cost, just as the building itself needs a realistic reconstruction value (see our guide to reconstruction costs in Portugal), and it is worth asking whether the contract can expressly provide settlement without age depreciation.
What you must tell your insurer
Circumstances that would have affected the decision to insure or the contract terms must be notified to the insurer within 14 days of becoming aware of them. This appears in Article 93 of Decreto-Lei 72/2008, the Portuguese Insurance Contract Act.
The law does not say that every new photovoltaic installation automatically amounts to such a change. That depends on the policy and insurer. For precisely that reason, notifying the insurer is the safer route: it costs nothing and removes the uncertainty.
What happens if the change is not reported
The following Article 94 sets out graduated consequences. With correct and timely disclosure, the insurer pays according to the policy. If the change was not notified, the payment can be reduced in proportion to the premium actually paid compared with the premium that would have been due for the true risk. Total refusal is reserved for intentional conduct aimed at obtaining an advantage.
This is therefore a proportional sanction, not an all-or-nothing rule. Even so, a proportional reduction after a major property claim can easily be worth tens of thousands of euros, and the risk can be avoided with an email. Include the installation’s technical data, commissioning date and evidence of the relevant administrative procedure.
What many expat homeowners expect versus how Portugal actually works
The main risk for expat homeowners is assuming that one familiar home-insurance section will automatically cover the panels, inverter, battery and third-party liability. In Portugal, those questions can sit in different parts of the policy and, for UPAC liability, under a separate compulsory-insurance requirement.
What many owners expect
Solar panels are simply part of the house
A permanently fixed system can look like an obvious extension of the house, so owners often assume the panels, inverter, battery and liability are all covered together. That assumption is risky in Portugal because each part can depend on a different definition or policy section.
Portugal
Several separate checks are needed
Whether the photovoltaic system belongs to the building depends on the insurer’s definition and your declared sums. Inverter and battery losses may depend on electrical-damage or electronics cover. Liability arising from a controlled UPAC can require separate compulsory cover rather than ordinary home liability, and the insurance evidence must match the actual installation.
Six practical mistakes
In photovoltaic claims, the following six mistakes can matter more than the amount of damage, and all can be addressed before installation.
1
2
3
4
5
6
What is changing
One change had already been enacted by the time of this review and concerned only the lowest threshold. Decreto-Lei 130/2026 of 29 June 2026 amended Decreto-Lei 15/2022 and, according to the official publications reviewed for this guide, raised the threshold below which a no-export installation is exempt from control from 700 W to 800 W, with entry into force reported for late August 2026. For ordinary rooftop systems that supply a home, the administrative procedure and the Article 98 insurance issue remain relevant. The practical change mainly affects very small plug-in systems.
Photovoltaics in Portugal: 12 checks for your policy
Two printable pages covering whether the system is included in the building sum insured, how theft, storm and hail are treated, what happens to inverter and storage, whether lost generation matters, how liability is handled, what the UPAC process requires and where construction insurance takes over during installation. Free, with no registration.
Frequently asked questions
These are the questions we are most often asked about photovoltaics in Portugal, with the source of each answer explained in the article above.
Is a photovoltaic system in Portugal automatically insured under home insurance?
No, it depends on the contract. In the published Fidelidade Casa Mais wording, small-scale electricity generation systems are expressly excluded from the building definition except for compulsory fire cover and need their own item as a sistema de microgeração de energia. In the Allianz Casa wording, solar and photovoltaic panels are included in the building definition. Check the definition of edifício in your own terms.
Above what size is liability insurance compulsory for a solar system in Portugal?
Our reading of Article 98 of Decreto-Lei 15/2022 is that it applies above 700 W because it refers to activities under paragraphs 2 to 4 of Article 11, and paragraph 4 covers the prior-notification range above 700 W to 30 kW. The lowest exempt category is the small installation without export.
Is it true that the insurance requirement starts only at 30 kW?
No, according to the legal reading used in this guide. The 30 kW threshold separates prior notification from registration with an operating certificate. Article 98 also refers to paragraph 4 of Article 11, which covers the lower capacity band.
Does ordinary private liability cover damage my solar system causes to neighbours?
Usually not where the risk is subject to a specific compulsory liability policy. Both policy wordings reviewed exclude liabilities for which the law requires separate compulsory insurance. Obtain written confirmation of how your own insurer treats the UPAC.
Do I have to tell my insurer that I installed a solar system?
You should notify circumstances that would have affected the insurance terms. Article 93 of Decreto-Lei 72/2008 gives a 14-day period from knowledge. Article 94 provides for a proportional reduction where an unreported increase in risk affects the loss, with total refusal reserved for intentional conduct aimed at obtaining an advantage.
Are the inverter and battery storage insured in the same way as the panels?
Often not under the same section. Panels may suffer breakage, storm or falling damage, while inverters and batteries fail through surge, short circuit and overheating. Electrical causes normally require riscos elétricos or specific electronics cover.
Will a total loss be replaced with a completely new installation?
Only if your contract provides for it. In one of the cited policies, the building is settled at reconstruction cost while the self-generation system is settled at replacement value less depreciation for age, condition and use. Ask whether your condições particulares allow a different valuation basis.
What changes if I export surplus electricity to the grid?
Two issues arise. First, the smallest procedural exemption depends on there being no export. Second, the Allianz definition cited in the source applies to panels “sem fins específicos de venda de energia elétrica”. If you regularly export and are paid, obtain confirmation that your system still falls within the policy definition.
Our advice as an independent broker
With photovoltaics, most important decisions are made before installation rather than after a claim. If the system is installed first and insurance is considered afterwards, three things can already be out of sequence: correct inclusion in the insured value, notification within the relevant period and evidence of the compulsory liability cover from commissioning.
As an independent insurance broker not tied to one company, we read the wording and check whether your contract includes the installation in the building definition, whether separate cover is needed for electronics, theft or liability, and whether your existing policy is already sufficient. If a loss occurs, we can handle the participação de sinistro, support the assessment and manage Portuguese correspondence in English. The wider building, contents and liability structure is explained on our House Insurance in Portugal page.
We can check whether your solar system is really in your policy
Send us your condições particulares and the technical data sheet for the installation. We will tell you whether it is insured, at what value, which section applies to the inverter and battery, and whether your UPAC needs the compulsory liability policy described above. No obligation, and support is available in English.
Phone: +351 289 392 452
Online: Contact form
Our office in Almancil, Quinta do Lago, serves the whole Algarve. Advice is also available by phone and online.
Note: This guide is for general information only and does not replace legal advice or a review of your specific insurance contract. The information on procedures, deadlines and legal consequences reflects our review as of August 2026 and is based on the Portuguese legal texts and authority publications linked above, together with the publicly available general terms of two insurers used as examples of market practice rather than recommendations. Definitions, exclusions, excesses and valuation rules vary significantly between companies. Your own cover is determined exclusively by your condições gerais and condições particulares.
Further reading
- House Insurance in Portugal: building, contents and liability
- How to calculate property reconstruction costs in Portugal
- Construction Insurance in Portugal: cover during building and renovation
- Caderneta Predial: why this document matters for home insurance
- How to file a house insurance claim in Portugal
