To the editor: Solar energy should be in greater use throughout the U.S., and Iowa can lead the way with the tax credit fixes proposed in House File 221. It is a step in the right direction. The American Institute of Architects, of which I am a member, has a 2030 plan for net-zero buildings. The urban built environment is responsible for about 79% of energy consumption, with buildings being 39% of energy consumption in the U.S. The Energy Code for Iowa helps architects by creating a framework of standards that make buildings more energy efficient. When solar energy is added to buildings, the ...