Abstract
The energy conservation achieved by utilizing waste heat in the energy and industrial sectors has became more and more important after the energy crisis in the 1970s because it plays a vital role in the potential energy-efficiency improvement. In this regard, cogeneration (combined heat and power, CHP) systems are thus becoming attractive due to the energy, economic, and environmental policies for pursuing stable electricity supply, sustainable development and environmental pollution mitigation in Taiwan. The objective of this paper is to present an updated analysis of CHP systems in Taiwan during the period from 1990 to 2010. The description in the paper is thus based on an analysis of electricity supply/consumption and its sources from CHP systems during the past two decades, and centered on two important regulations in compliance with CHP systems (i.e., Energy Management Law and Environmental Impact Assessment Act). Based on the total net power generation from CHP systems (i.e., 35,626 GWh) in 2011, it was found that the carbon dioxide reduction benefits were estimated to be around 20,000 Gg.
Highlights
Taiwan is a small and densely populated island country in the Far East (Asia) with limited natural resources
Based on the total net power generation from Combined heat and power (CHP) systems (i.e., 35,626 GWh) in 2011, it was found that the carbon dioxide reduction benefits were estimated to be around 20,000 Gg
The equivalent mitigations of CO2 emissions from the CHP systems for electricity generation in comparison with greenhouse gases (GHG) emissions from the fossil fuel-fired power plant can be calculated by multiplying levels of CHP activity with default emission factor (DEF)
Summary
Taiwan is a small and densely populated island country (land area: 36,000 km; population: 23 million) in the Far East (Asia) with limited natural resources. Yuan of Taiwan adopted several regulatory and financial measures in the past two decades to encourage energy saving and renewable energy development. In this regard, the Taiwan government approved “Framework of Taiwan’s Sustainable Energy Policy” in 2008 to pursue the following targets [3]:. A previous paper [5], only focused on comprehensive descriptions of the electricity supply and consumption during the period of 1984–2004 and governmental regulations for promoting industrial waste (i.e., pulp sludge, scrap wood, sugarcane bagasse, textile sludge, and scrap plastics) as energy sources, and centered on preliminary benefit analysis in the greenhouse gases reduction as a result of CHP system. Current status of electricity supply and consumption; Current status of electricity from CHP system; Regulatory compliance with CHP system; Preliminary benefit analysis from CHP system
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