We install solar thermal collectors for homes, hotels and pools in Lisbon and surrounding areas. Immediate savings on gas or electricity bills. Return on investment in 3 to 5 years.
Free · No obligation · Quick response
Why install solar thermal
Solar thermal is the most efficient way to reduce this cost. In Lisbon, with over 2,800 hours of sunshine per year, the savings potential is enormous.
A properly sized system covers 60 to 80% of your hot water needs throughout the year, dramatically reducing gas or electricity consumption.
Immediate savings from day 1Faster than photovoltaic. The savings on your gas or electric bill recover the investment in just a few years, with over 15 years of benefit to follow.
System lifespan: 20+ yearsThe RECS (Energy Efficiency Regulation) makes solar thermal mandatory in new buildings. The property's energy certification improves significantly.
Improves property energy ratingThe solar system works in parallel with your existing boiler or water heater. On sunny days, water heats for free; in winter or cloudy days, the boiler only activates when needed.
Compatible with gas, electric and heat pumpSolar thermal systems are simple and durable. An annual inspection and antifreeze fluid check is all they need to function for decades.
1 annual service recommendedSolar thermal is the most economical solution for heating pools. It extends the swimming season by 3 to 4 months with near-zero operating costs.
+3 to 4 months swimming seasonAvailable technology
Both work well in Portugal. The choice depends on the application, available space and budget. We recommend what's right for your case.
The most common choice for residential homes
For cold climates or high temperature needs
For whom
We size the system for your actual consumption, whether a home, pool or business.
Hot water for homes or apartments. For a household of 4, the system covers 70% of needs with 2 collectors and a 200L tank.
2 collectors · 200–300LPool water heating with near-zero operating costs. Extends the swimming season from March to October and maintains comfortable temperature without high costs.
4–10 collectors · +4 months swimming seasonHotels and holiday accommodation have high hot water consumption. Solar thermal significantly reduces operating costs and improves sustainability ratings.
Systems from 10 collectorsOur process
Solar thermal installation is simpler and faster than you think. We handle everything so you don't have to worry about anything.
We assess your roof, orientation, available space and current hot water consumption. With this information, we size the right system for your case — no oversizing, no undersizing.
Free · No obligationYou receive a proposal with the recommended system, estimated bill savings and return on investment — in plain language, with no technical jargon.
Detailed quote in 48hA typical residential system installation takes 1 day. We handle all connections to your existing backup system (boiler or water heater) and test everything before we leave.
Fast installation · Installation warrantySolar thermal installation with connection to backup systems requires DGEG certification. It guarantees that the installation complies with safety and efficiency standards in force in Portugal.
What customers say
"They installed two flat collectors and a 300L tank. We had a gas bill of 90€ per month — now it's 20€. Installation took one day and the team left everything spotless."
"We heat our pool from March to October with negligible costs. Before, we spent a ridiculous amount on electricity for the heater. Payback was much faster than we expected."
"I own a guest house with 12 rooms. JSolC sized the system for our actual consumption and our gas bill dropped 65%. We recovered the investment in less than 4 years."
Frequently asked questions
The most common questions about solar thermal in Portugal. If you don't find your answer, speak directly with us.
We calculate the exact savings for your home and the return on investment — no obligation, no pressure.
