Payback · Leiria District · Portugal
Commercial solar payback in Nazaré: 4.2 years
A self-consuming 100 kWp array on a commercial roof in Nazaré typically pays back in about 4.2 years. That figure uses Nazaré's specific yield of 1,545 kWh per kWp per year and a commercial tariff near €0.20/kWh, with 70% of generation used on site.
At that yield the array produces about 154,500 kWh a year and saves roughly €21,630 annually against an installed cost near €90,000. Over 25 years the net saving is around €450,750, while avoiding about 54.1 tonnes of CO₂ each year.
Nazaré is in Leiria District, alongside Leiria, Caldas da Rainha and Pombal. Those towns share the same irradiance zone, so payback is similar — the difference is which warehouses and factories still have empty roof. SolarScout lists them with a pre-computed business case rather than a generic "solar is cheap" pitch.
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Scan this area free →How the Nazaré payback number is calculated
Start with 100 kWp × 1,545 kWh/kWp = 154,500 kWh of annual production on a representative warehouse or factory roof in Nazaré. Apply 70% self-consumption against €0.20 per kWh and you get about €21,630 a year. Divide the €900/kWp installed cost (€90,000 for 100 kWp) by that saving and payback lands at 4.2 years.
This is a worked example, not a quote. Real payback moves with self-consumption, shading, export tariff and installed cost. It is still the right first filter: if a roof in Nazaré cannot beat roughly 4.2 years on these inputs, it is probably not a priority lead.
Nazaré versus the rest of Portugal
Relative to Portugal as a whole, payback in Nazaré is about 0.1 years faster than the Portugal average of 4.3 years. Portugal enjoys very high sunshine hours along the Atlantic coast and interior. Warehouses, factories and cold-storage sites achieve rapid payback from on-site solar self-consumption.
That is why outreach in Nazaré should open with the local number — 4.2 years and €21,630 a year on 100 kWp — not a national average that under- or over-sells the roof.
What actually changes payback on a Nazaré roof
Yield is already baked into the 1,545 kWh/kWp zone for Leiria District. The bigger swings are usable roof area, daytime load (factories and cold stores self-consume more than empty warehouses) and whether the site pays the full €0.20/kWh commercial rate.
SolarScout estimates roof footprint from satellite and map data and, where Google Solar coverage exists, modelled annual output — so you can rank Nazaré sites by savings instead of guessing from a map pin.
Frequently asked questions
What is the commercial solar payback in Nazaré?
About 4.2 years for a self-consuming 100 kWp rooftop in Nazaré. That uses 1,545 kWh/kWp of local yield and a tariff near €0.20/kWh, saving around €21,630 a year.
How much electricity does 100 kWp produce in Nazaré?
Around 154,500 kWh a year. Multiply the 1,545 kWh/kWp specific yield for Leiria District by 100 kWp; shading and orientation can move that figure, which is why SolarScout models each roof rather than stopping at the city average.
Is payback in Nazaré better than nearby towns?
Payback is in the same band as Leiria, Caldas da Rainha and Pombal because they share the Leiria District irradiance zone. The practical difference is the stock of large, unshaded commercial roofs — SolarScout lists those in Nazaré with a pre-computed saving so you can compare sites, not just towns.