The strengths and weaknesses of current energy planning can be attributed to the limited economic, social, and environmental contexts taken into account as a result of the current intellectual and professional division of labor. A preventive approach is developed by which the ratio of desired to undesired effects can be substantially improved. It takes into account supply-and demand-side options, renewable and nonrenewable sources, and net energy availability. Alternative energy must be considered within such a strategy, which carefully examines its effects on society and the biosphere. Intellectual barriers are identified, and ways of overcoming them are suggested.