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| 1 |
ID:
149837
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| Summary/Abstract |
Small islands face difficult challenges to guarantee energy, freshwater and food supply, and sustainable development. The urge to meet their needs, together with the mitigation and adaptation plans to address climate change, have led them to develop renewable energy systems, with a special interest in Ocean Thermal Energy Conversion (OTEC) in tropical islands. Deep Ocean Water (DOW) is a resource that can provide electricity (through OTEC in combination with warm surface water), low temperatures for refrigeration, and nutrients for food production. In this paper we propose an Ocean Technology Ecopark (OTEP) as an integral solution for small islands that consists of an OTEC plant, other alternative uses of DOW, and a Research and Development (R&D) center. We present an application of OTEP to San Andres, a Colombian island that meets all the necessary conditions for the implementation of OTEC technology, water desalinization, and a business model for DOW. We present the main entrance barriers and a four-stage roadmap for the consolidation and sustainability of the OTEP.
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| 2 |
ID:
186411
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| Summary/Abstract |
Long-term capacity cycles in electricity markets are a challenge to policy makers, bringing instability in energy prices, and jeopardizing security of supply. There is evidence of capacity cycles in electricity markets using conventional technologies from empirical data, experimental work and simulation studies. In this article we study the effects of the availability of new technologies on the investment cycles observed, using economic experiments performed in a laboratory setting. We consider the decision making process with a new technology that has shorter construction delays, shorter lifetime and an alternative cost structure, compared to the conventional technologies previously studied. Our experimental design follows the current trends to de-carbonize electricity production by introducing variable renewable energy sources (VRES) as part of the generation portfolio. We find that the introduction of VRES does not dampen the capacity oscillations observed. In fact, the shorter delays in construction and technology lifetimes create shorter, more frequent cycles. We provide recommendations to manage the increased cyclical nature in the transition to a low carbon economy.
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