A.C. Rich has invented and patented a new form of solar water heater that he claims will significantly reduce home-heating costs and is aesthetically pleasing. The case asks students to evaluate Rich's design in terms of cost, performance, and marketability, and also in relation to a set of ethical and environmental criteria presented in "Note on Moral Reasoning" (E-0092) and "Note on Five Traditional Theories of Environmental Sustainability" (E-0094). Students also must decide whether Rich should move to a state that provides subsidies.