Guides
What to know before you ask for quotes. Every guide cites its sources and says when it was checked.
How to compare solar quotes
The four numbers to put every solar quote on equal terms, eight checks before you sign, and the warning signs that turn up most often in Portuguese quotes.
DGEG registration
How a home solar system is registered with DGEG in Portugal: the prior notice up to 30 kW, who submits it, what it needs, what it costs, and what happens if it is skipped.
UPAC or UPP
UPAC is self consumption, the regime for a home solar system in Portugal. UPP was for selling all production to the grid. What each means, and what your surplus is worth in 2026.
Incentives in 2026
What exists for home solar in Portugal in 2026: VAT at 23% since July 2025, no IRS deduction for the installation, a €1,000 IRS exemption on surplus sales, IMI reductions some municipalities give, and the voucher still to open.
Costs in 2026
Average 2026 prices for turnkey home solar in Portugal by system size, with 23% VAT included, what a battery adds, how much less the north produces, and how to work out your own payback.
Off grid solar
When an off grid solar system makes sense for a rural property in Northern Portugal, how winter output changes the sizing, what an installer we spoke to recommends, and the rules that still apply.
Holiday homes
How part time occupancy changes a solar system for a holiday home in Portugal: smaller systems, when a battery is worth it, the same DGEG rules, and the questions to ask before you buy.
Solar in Northern Portugal
Solar in Northern Portugal in 2026: PVGIS yields for 24 Minho municipalities, current prices with 23% VAT, how a system is registered, when a battery is worth it, and how to compare quotes.
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