SIARQ Advanced Solar Design | 658 followers on LinkedIn. A new generation of solar solutions to take care of our cities | SIARQ is a Greentech company that since 2003, designs and manufactures iconic smart solar lighting systems for our cities. Based in Barcelona, ​​SIARQ is the European leader in aesthetic and IoT connected solar street lighting solutions. SIARQ also created and patented the unique paraboloid solar lighting in the world, the SOLAR HUB, able to illuminate the public space and monitor the quality of the air.