[en] The photovoltaic energy sector is rapidly expanding and technological specification for PV has improved dramatically in the last two decades. This paper sketches the current state of the art and drafts three alternative scenarios for the future, in terms of costs, market penetration and environmental performance. According to these scenarios, if economic incentives are supported long enough into the next ten to twenty years, PV looks set for a rosy future, and is likely to play a significant role in the future energy mix, while at the same time contributing to reduce the environmental impact of electricity supply. (author)

[en] On 30 March 1995 the Institut for Landes- and Stadtentwicklungsforschung (Institute for Research on Regional and Urban Development) in North Rhine Westphalia held a workshop on the subject of 'Regional coordination of aeorogenerators'. The author deals with the energy-economic valuation of aerogenerators and reports on possibilities of connecting them to the network from the viewpoint of RWE Energie in the case of a windy highland service region. (orig.)

[en] Pico hydro power is a renewable energy system which has the potential to provide millions of rural people world-wide with a cheap, sustainable source of electricity. The development of new, cost-reducing approaches, including local manufacture and implementation in developing countries, has increased the accessibility of this technology to large numbers of people. The new approaches are investigated and some of the present constraints to wider adoption of this technology are analysed. (Author)

No abstract available

[en] The (future) competitive position of central-station fusion power will depend on the resolution of several broad public-policy issues, including the provision of adequate electrical energy to a growing world population and the interaction of economic and environmental considerations meeting evolving standards of public acceptance and regulatory compliance. Candidate baseload central-station power plants, fusion or other, will be expected to contend for preferential market penetration against an evolving set of performance indicators or metrics (e.g. cost of electricity) reflecting societal 'customer preferences' for abundant, affordable, safe, reliable, and environmentally benign sources. This competition is enhanced by transitions to price-deregulated regimes, overlaid by nuclear uncertainites and evolution beyond carbon-based fuels toward more renewables in the energy mix. From these top-level considerations, quantifiable attributes, including plant size (output), system power density, surface heat flux, recirculating power fraction, power-conversion efficiency, waste streams, and forced- and planned-outage rates emerge

[en] Economic analysis of scaling up, from 30 MW to 80 MW, of solar thermal power plants, is presented

[en] Short communication

No abstract available

[en] The problems of small power engineering are discussed. The data characterizing the development level and prospects for small hydroelectric, geothermal, bioenergy and wind power plants in Russia, are given

[en] Information concerning the main trends in the development and fields of applying of small-power (600 MW(el.)) reactors is offered, data on economic indices of reactors of this type and the place they occupy at the World power market, are presented