; and (B) carry out other activities in accordance with this section. (2) Purposes The purposes of the program are the following: (A) To improve the energy efficiency, reliability, resilience, security, and capacity of solar energy generation. (B) To optimize the design and adaptability of solar energy systems to the broadest practical range of geographic and atmospheric conditions. (C) To reduce the cost of manufacturing, installation, operation, and maintenance of solar energy systems. (D) To create and improve conversion of solar energy to useful forms. (3) Targets In carrying out the program, the Secretary shall address near-term (up to 2 years), mid-term (up to 7 years), and long-term (up to 15 years) challenges to the advancement of solar energy systems. (4) Stewardship of National Laboratory resources In awarding grants under the program, the Secretary shall steward relevant capabilities and programs of the National Laboratories. (5) Technical assistance and workforce development In carrying out the program, for purposes of supporting technical, nonhardware, and information-based advances in solar energy systems development and operations, the Secretary may— (A) provide technical assistance and carry out analysis activities with eligible entities, including activities that support expanding access to solar energy for low-income individuals and communities, including in economically distressed areas