The papers are divided into sessions under the following headings: technical barriers and market employment, energy efficiency and the environment, national and regional programmes, international collaboration aspects.

In recent times energy conservation has gained tremendous importance in India and is being looked upon as an untapped energy source. In the last 40 years there has been a phenomenal increase in India's production of commercial energy, demands of the developing Indian economy have outstripped the available energy supplies, an energy shortage has persisted for a long time

Ecolonia is being built in an urban expansion area in the Dutch municipality of Alphen aan den Rijn. The urban development plane was prepared by the Belgian town planning architect Lucien Kroll. He came up with an unusual design for a living and working environment, in which as many "natural" elements as possible are incorporated. It is a project which challenges the occupants to act in an energy-saving and environmentally-conscious way.

This paper investigates the feasibility of the application of ice storage/cold air distribution based air conditioning systems in commercial buildings in the South-Eastern Mediterranean area. An office building currently under construction in

The Haringkavel housing project consisting of 47 apartments is situated in the town of Boskoop, The Netherlands. This project, completed in 1989, consists of two parallel, three-floor apartment blocks with the areain between enclosed by a glas

The present study intends to optimize the concept of a breast-wall panel while conciliating the architectural aspects and energy saving strategies of non residential buildings. Thus, the panel will permit besides a recovering of solar energy gains during the winter as in a classical Trombe wall (but without is thermal inertia) a reduction of solar energy inputs during summer. In order to estimate its thermal performance, a simplified model was developed predicting energy savings both in winter and in summer periods.

In the period 1980-1987 Rotterdam carried out an energy saving programme for municipal buildings in the non-profit sector (hospitals, schools, offices, libraries, etc). The target of this programme was to save energy with a yearly balance between costs and benefits. In 1987 this programme resulted in aninvestment of F.42,000.000,--. The energy consumption was reduced with 16.000.000m3 gas. After 1987 the energy consumption slowly grew to the situation of 1980. In 1989 Rotterdam started with the introduction of energy management.

Indoor climatization requires temperature and humidity control. The physical processes affecting the heat and vapour balance comprise heat and vapour diffusion across the envelope, ventilation, water evaporation or condensation, metabolic heat and vapour generation, solar and auxiliary heating.

Due to the intensification of global environmental problems and to the anxiety of stable oil supply resulting from the Gulf war the tendency toward energy-saving is growing at a global scale. On the other head, in Japan, due to the ever increasing participation of women in social activities, the development of anaging society and urbanization, the reform of social structure and the diversification of users' needs are advancing rapidly.

The next generation of end-use technologies must respond to growing demands for better indoor air quality, comfort, workmanship and durability. Priority technologies include advanced building energy management control systems, high efficiency.