WELCOME TO SUNPOWER INC.

Sunpower Inc. is the world leader in Free-Piston Stirling Technology, in fact we invented it! Sunpower continues to implement Free-Piston Technology in our commercial line of CryoTel® cryocoolers and our non-commercial Stirling engines.

Sunpower’s engineering services include prototype design, development and fabrication of free-piston Stirling engines. The CryoTel® line of cryocoolers has outstanding performance, manufacturing accuracy, and quality. We invite you to contact us for more information about our services or products.