Is a society made specifically for Manufacturing, Placement and sales of a wide variety of precision components for renewable energies usage and generation.

Its headquarters are located in Mieres ( Asturias ) Spain

Actually it counts with the latest technology media and manufacturing systems, completely automated, fully operational to reach an annual production of 220.000 m2 (154 MW) of Thermal solar collectors for domestic hot water applications, industrial hot water, pools, under floor heating, etc.

Astersa uses the latest technology in automation of every process in the manufacture of thermal solar collectors, Works with the finest raw material quality in all possible versions with the objective to offer the maximum possible warranty (10 years) and highest durability of the collectors. Has toxicity free raw materials and chemical processes, 100% recyclable and mother nature friendly.

It offers the best option in collector surface with a high absorptance of 95.3% and low emissivity of 4.7%

With this you get:
• Greater optical yields
• Higher collector durability
• 100% Recyclable material