Satcon Technology Corp., a maker of power generation products for the alternative energy industry, has leased 19,845 square feet at 21-23-25 Drydock Ave. in Boston’s Seaport District.

"23 Drydock has exactly the space we needed to move our company forward," said Daniel Gladowski, vice president of Satcon. "The location’s affordability helps our financial performance and Drydock Avenue’s waterfront location is a great and creative place to work."

Thomas Ashe, senior vice president of Richards Barry Joyce & Partners, represented the landlord, CV Dry Dock Avenue LLC, in the lease. CV Dry Dock Avenue LLC is a Millennium Partners venture through its Cargo Ventures affiliate. Satcon Technology Corp. was represented internally.

"We are very happy to have Satcon Technology in our building; they are exactly the kind of innovative company that keeps Boston dynamic," said Joseph Larkin, a principal of Millennium Partners. "At 21-23-25 Drydock Ave. tenants can really experience the Boston Waterfront, and, with the property’s unique capital structure, we can provide great space at a remarkably low cost."