Founded in 1974 by noted solar advocate, designer and author Steven J. Strong, Solar Design Associates has earned a global reputation for its pioneering leadership in the renewable energy field. Solar Design works with architects, engineers and commercial building owners, as well as private and institutional clients, in the quest for excellence and innovation in solar electric, solar thermal and wind energy systems. SDA continues to build alliances with labor unions and electric utilities. Our pioneering work in building integration (BIPV) keeps us in the forefront of sustainable energy product development and zero-energy building design.