In recent years, the scope of energy planning has been broadened to include a variety of additional considerations such as socioeconomic and environ mental impacts. The fundamental purpose of energy planning is to formu late policy. Policy must be formulated in response to the interests which that policy would affect. A planning model called policy programming is developed in this work from basic concepts of hierarchical system theory and input-output analysis. The model is used in planning for energy park development in a specific region. I wish to acknowledge gratefully the suggestions of Thomas L. Saaty and Ronald Miller who commented at length on various drafts of the manu script. Support for this work was provided in part by the U. S. Energy Research and Development Administration, the U. S. Federal Energy Administration, and the University of Pennsylvania Energy Center. Peter Blair December, 1977 Contents Preface v PART ONE: SYSTEMS THEORY AND ENERGY PLANNING 1. Introduction 1. 1 Energy planning 3 1. 2 General approach to the problem 6 1. 3 Principal significance 7 2. Energy systeDM and planning 2. 1 The energy planning problem 10 2. 2 Energy planning and multiple objectives 14 2. 3 Structure of policy-making systems 18 2. 4 Energy-environment systems 21 2. 5 The eigenvalue prioritization model 27 3. Policy programming for multiobjective energy planning 3. 1 Introduction 38 3. 2 Definitions 38 3. 3 The modified hierarchical approach 41 3. 4 Goal programming 51 3.

Processes for recovering fresh water from the oceans - of which men have dreamed since antiquity - have changed markedly in the last 20 years. In fact, it has become possible so to increase the productivity of the technical steps involved that the cost of production of such water is almost three orders of magnitude smaller than for other large volume industrial products. However, the monographs and comprehensive reviews which have appeared to date in this field have been prepared by specialists for specialists. In accordance with the tradition and objectives of the Gmelin Handbook, this bibliography has been prepared to provide access to aII of the ways in which fresh water can be, and has been, obtained on an industrial scale from the ocean. Production of fresh water from sea and brackish waters amounts to almost two million cubic meters per day, and this is increasing by about 25% per year. This means that it will increase nearly tenfold in 10 years.