Factory rooftops · Faro District (Algarve) · Portugal
Factory rooftop solar in Lagoa: 171,000 kWh a year on 100 kWp
A 100 kWp array on a factory roof in Lagoa generates about 171,000 kWh a year at the local specific yield of 1,710 kWh/kWp. Factories are a better solar match than most commercial buildings because process loads, compressed air and HVAC run through the same daylight hours the array is producing.
With roughly 70% self-consumed against €0.20/kWh, that output is worth about €23,940 a year and pays back in around 3.8 years on an installed cost near €90,000. Strong local irradiance plus daytime process load is why factory rooftops in Lagoa are usually faster to close than speculative warehouse pitches.
Industrial estates around Lagoa sit in the same Faro District (Algarve) band as Faro, Loulé and Portimão. What changes site to site is roof area, shading from plant rooms, and whether the factory runs a true day shift. SolarScout flags those roofs from satellite and OpenStreetMap rather than from a bought list.
Turn these rooftops into a lead list in minutes.
Scan this area free →Why factory roofs in Lagoa self-consume more than warehouses
A quiet distribution shed may export a large share of midday generation. A factory in Lagoa typically does not: motors, ovens, plating lines or refrigeration pull power while the sun is up, so a higher share of the 171,000 kWh stays behind the meter and the 3.8-year payback holds.
That is the conversation to open with — not "solar is green", but "this roof in Lagoa offsets about €23,940 a year at today's tariff of €0.20/kWh".
What to inspect on a Lagoa factory roof
Look for large, low-pitch structural roofs with few roof lights, limited HVAC clutter, and a south or east-west run that matches Faro District (Algarve)'s 1,710 kWh/kWp resource. North-light sheds and heavily plant-loaded roofs still work, but usable kWp drops and payback stretches past the 3.8-year city example.
SolarScout estimates footprint first, then (where Google Solar data exists) modelled annual kWh, so you can skip the roofs that will never carry a 100 kWp array and spend time on the ones that will.
How to turn Lagoa factory roofs into a lead list
Scan Lagoa in SolarScout and filter for factories. Each row carries an estimated roof area, a worked saving at €0.20/kWh, and contact fields where map data provides them. Export CSV or Excel and drop the list into your CRM.
When Lagoa is thin, run the same scan on Faro, Loulé and Portimão — they share the Faro District (Algarve) yield, so the economics stay comparable and you are not mixing a sunny coast with a cloudy hinterland.
Frequently asked questions
How much can a factory rooftop in Lagoa generate?
About 171,000 kWh a year on a 100 kWp array. That is 100 kWp multiplied by Lagoa's specific yield of 1,710 kWh/kWp; larger roofs scale linearly until structure, shading or grid export caps the design.
What payback does factory rooftop solar see in Lagoa?
Around 3.8 years when most of the generation is used on site. Factories usually beat empty warehouses on that score because daytime process load matches the solar curve.
How does SolarScout find factory rooftops in Lagoa?
It combines OpenStreetMap industrial building tags with satellite imagery and, where available, Google Solar modelling — then exports Lagoa factories as leads with roof area and a €23,940/year worked example on 100 kWp.