Factory rooftops · Setúbal District · Portugal
Factory rooftop solar in Santiago do Cacém: 162,000 kWh a year on 100 kWp
A 100 kWp array on a factory roof in Santiago do Cacém generates about 162,000 kWh a year at the local specific yield of 1,620 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 €22,680 a year and pays back in around 4.0 years on an installed cost near €90,000. Strong local irradiance plus daytime process load is why factory rooftops in Santiago do Cacém are usually faster to close than speculative warehouse pitches.
Industrial estates around Santiago do Cacém sit in the same Setúbal District band as Sines. 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 Santiago do Cacém self-consume more than warehouses
A quiet distribution shed may export a large share of midday generation. A factory in Santiago do Cacém typically does not: motors, ovens, plating lines or refrigeration pull power while the sun is up, so a higher share of the 162,000 kWh stays behind the meter and the 4.0-year payback holds.
That is the conversation to open with — not "solar is green", but "this roof in Santiago do Cacém offsets about €22,680 a year at today's tariff of €0.20/kWh".
What to inspect on a Santiago do Cacém 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 Setúbal District's 1,620 kWh/kWp resource. North-light sheds and heavily plant-loaded roofs still work, but usable kWp drops and payback stretches past the 4.0-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 Santiago do Cacém factory roofs into a lead list
Scan Santiago do Cacém 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 Santiago do Cacém is thin, run the same scan on Sines — they share the Setúbal District 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 Santiago do Cacém generate?
About 162,000 kWh a year on a 100 kWp array. That is 100 kWp multiplied by Santiago do Cacém's specific yield of 1,620 kWh/kWp; larger roofs scale linearly until structure, shading or grid export caps the design.
What payback does factory rooftop solar see in Santiago do Cacém?
Around 4.0 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 Santiago do Cacém?
It combines OpenStreetMap industrial building tags with satellite imagery and, where available, Google Solar modelling — then exports Santiago do Cacém factories as leads with roof area and a €22,680/year worked example on 100 kWp.