Home battery storage: do you need a permit in Portugal?

Independent site: we are not a public authority, and this is not legal or tax advice.

Home energy storage units are exempt under the same limits as solar panels, as long as the storage unit is hidden from view. Outside those limits the general rule is a licence.

Ask for a free check

Answer

Exempt from licence and prior communication

Limit

Not beyond the roof area of the building and not more than 1 m above its height

Condition

The storage unit must be concealed

Before you start

Tell the council at least 5 days before work begins, even for exempt work (art 80-A).

Heritage exception

Minor-works exemptions do not apply to listed buildings, buildings in the protection zone of a listed building (window frames excepted), or buildings inside listed groups or sites (art 6-A(2)).

Council rules

Your council can add detail in its own building regulation where the law lets it, so ask before you start.

Legal basis

RJUE art 6-A(1)(g), RJUE (Decreto-Lei 555/99) as republished in the Annex of Decreto-Lei 108/2026

Sources

data.dre.pt/eli/dec-lei/108/2026/05/29/p/dre/pt/pdf

Checked

2026-11-05