Older cities represent models of energy efficiency. A research project that compares the performance of three different solar design approaches for older cities is described. (Author/MLF)

At the University of Southern California solar-access design research project, Barry Knowles and students have devised a solar envelope: the largest volumetric container over a land parcel that allows solar access to all adjacent neighbors within useful time constraints. (Author/MLF)

A leading passive solar heating expert advocates more extensive uses, outlines various familiar approaches, and evaluates many existing built examples. (Author/MLF)

In the current period of questioning of architectural values and directions, the implications of energy use on form must be confronted sooner or later. Efforts by various practitioners at combining art and technology are shown. (Author/MLF)

The design and effectiveness of a number of government/industry active solar demonstration projects. (Author/MLF)

Some quantitative methods are illustrated that might be used to select design elements that are appropriate year-round and matched to the annual climate profile, and, in addition, to apportion architectural and mechanical strategies so that they complement one another. (Author/MLF)