关于我国可再生能源发电产业的探讨

１我国可再生能源发电产业现状及背景 我国目前已拥有３亿ｋｗ的电力装机．国电公司全额投资、控股或参股的电厂占总装机的一半左右．全国发电量达到１２０００亿ｋＷｈ。其中火力发电量占总发电量的７４．５％,可再生能源发电不足１‰（未包括小水电）．风力发电总装机容量３４万ｋW ,风机国产化率可达４０％以上;太阳能光伏发电总装机容量２万ｋＷ,９个国内生产厂家的年生产能力达１万ｋＷ以上．我国电力行业发展的传统模式是“大机组、大电网,高电压、集中供电”．今后很长一段时间内,还将继续沿着这样的模式发展．但是这种模式是…     

加速发展我国可再生能源发电产业

一、我国可再生能源发电产业现状及背景 我国目前已拥有３亿ｋＷ的电力装机,国电公司全额投资、控股或掺股的电厂占总装机的一半左右。全国发电量达到１．２万亿ｋＷｈ。其中火力发电量占总发电量的７４．５％,可再生能源发电不足１‰（未包括小水电）。风力发电总装机容量３     

对我国可再生能源发电产业的探讨

1　我国可再生能源发电产业现状及背景我国目前已拥有 30 0ＧＷ的电力装机 ,国电公司全额投资、控股或参股的电厂占总装机的一半左右。全国发电量达到 1 2ＰＷｈ。其中火力发电量占总发电量的 74 5 % ,可再生能源发电不足 1‰ (未包括小水电 )。风力发电总装机容量 34 0ＭＷ ,风机国产化率可达 4 0 %以上 ;太阳能光伏发电总装机容量2 0ＭＷ ,9个国内生产厂家的年生产能力达 10ＭＷ以上。我国电力行业发展的传统模式是“大机组、大电网、高电压、集中供电”。今后很长一段时间内 ,我国电力行业还将继续沿着这样的模式发展。但是这种模式是否…     

中国可再生能源发电产业的探讨

1　我国可再生能源发电产业现状及背景我国目前已拥有 3亿ｋＷ的电力装机容量 ,国家电力公司全额投资、控股或参股的电厂占总装机的一半左右。全国发电量达到 1 2万亿ｋＷｈ。其中火力发电量占总发电量的 74 5 % ,可再生能源发电不足 1‰ (未包括小水电 )。风力发电总装机容量 34万ｋＷ ,风机国产化率可达 40 %以上 ;太阳能光伏发电总装机容量 2万ｋＷ ,9个国内生产厂家的年生产能力达 1万ｋＷ以上。我国电力行业发展的传统模式是“大机组、大电网、高电压、集中供电”。今后很长一段时间内 ,我国电力行业还将继续沿着这样的模式发展。但是…     

我国可再生能源发电问题的分析及对策

一、我国发展可再生能源发电的必要性 我国目前已拥有3亿千瓦的电力装机,国电公司全额投资、控股或参股的电厂占总装机的一半左右.全国发电量达到1.2万亿千瓦时.其中火力发电量占总发电量的74.5%,可再生能源发电不足1‰(未包括小水电).几力发电总装机容量34千瓦,风机国产化率可达40%以上;太阳能光伏发电总装机容量2万千瓦,9个国内生产厂家的年生产能力达1万千瓦.我国电力行业发展的传统模式是“大机组、大电网、高电压、集中供电”.今后很长一段时间内,我国电力行业还将继续沿着这样的模式发展.但是这种模式是否能解决我国的用电问题呢?     

可再生能源发电

可再生能源是指不会随人类的开发利用而衰减的能源,如风能、太阳能、生物质能、小水电（指设计能力低于２５兆瓦的工程）、海洋能、垃圾再利用能源、垃圾掩埋沼气、污水处理沼气、地热能等。我国的自然资源总量排世界第７位,能源资源总量居世界第３位。其中可再生能源资源尤其丰富,可开发风能资源２．５亿千瓦,水能资源７５４０万千瓦,生物质能１．２５亿千瓦,地热能６７０万千瓦,另外还有数量巨大的太阳能及城市垃圾利用潜力。１我国太阳能资源我国地处北半球欧亚大陆的东部,幅员辽阔,有着十分丰富的太阳能资源。我国各地的太阳辐…     

我国可再生能源发电装机容量突破4亿kW

<正>受一系列利好政策因素影响,我国可再生能源产业继续保持快速增长势头,截至10月初,全国可再生能源发电累计装机容量突破4亿kW,达4.043 7亿kW,占全部电力装机容量比例超过30%,继续保持全球可再生能源利用规模第一大国地位.其中:水电规模以上新增装机容量1565万kW,溪洛渡、向家坝等一批西电东送标志性大型水电项目投产运行,累计装机容量超过2.9亿kW,提前一年完成"十二五"规划目标;风电新增装机容量858万kW,累计装机容量达到8 497万kW;光伏发电新增装机容量400万kW,累计装机容量超过2 000万kW;生物质发电新增装机容量90万kW,累计装机容量超过     

国家发展和改革委员会文件可再生能源发电有关管理规定

第一章 总则 第一条 为了促进可再生能源发电产业的发展,依据<中华人民共和国可再生能源法>和<中华人民共和国电力法>,特制定本规定.     

关于我国可再生能源产业化措施的探讨

从能源安全供应的角度出发，阐述了我国发展可再生能源的必要性。为了加快我国可再生能源产业化进程，针对诸多的不利因素，提出了我国可再生能源产业化发展的对策措施。     

High-performance electric machines for renewable energy generation and efficient drives

Advances in permanent magnets, electronics and design techniques over the past thirty years have led to the development of a new generation of electric machines. Sintered rare-earth neodymium–iron–boron magnets have a magnetic energy product up to an order of magnitude larger than those of alnico and ferrite magnets, with high remanence and coercive force. Coupled with new smart power electronics and the use of advanced computer aided design optimisation, the new machines are of high efficiency and/or compact size. Some state of the art developments of high-performance machines are reviewed with particular examples drawn from a number of novel designs developed by UTS and CSIRO.     

Electricity generation from renewable energy sources in Poland

AbstractFor the European Union's Member States 2001/77/EC Directive on the promotion of electricity produced from renewable energy sources in the internal electricity market determined targets for 2010 of 21% share of electricity from renewable energy sources in total electricity consumption. Particular Member States adopted different measures for development of renewable and in consequence they achieved different results. Poland, being Member State of the EU since 2004 has accepted target of 7.5% for electricity generated from renewable energy sources until 2010. Currently, in this decade, new 2009/28/EC Directive on the promotion of the use of energy from renewable sources plays significant role in development of renewable energy sources. Directive set new target for 2020. Nowadays is a time for summary and assessment of results fulfilling Directives and monitor progress of new targets. Article presents measures implemented for renewable source energy development, also current state and perspectives of using of renewable energy sources in Poland and in the EU.     

Electricity generation from renewable energy : The French experience

Besides its traditional and large scale involvement in hydro power, EDF has recently taken a significant interest in “new” renewable energy sources. The present paper describes the reasons and the field of application of this interest.     

可再生能源发电的展望

21世纪能源结构将会发生根本的变化。寻找和开发利用清洁高效的可再生能源，将是世界能源发展的必然趋势。文章介绍了国内外新能源发电技术的现状与前景，针对中国所面临的挑战，提出了可再生能源发电问题的建议。     

On the physics of power,energy and economics of renewable electric energy sources - Part II

Renewable Energy Technologies (RETs) are often recognized as less competitive than traditional electric energy conversion systems. Obstacles with renewable electric energy conversion systems are often referred to the intermittency of the energy sources [1] and the relatively high maintenance cost. However, due to an intensified discourse on climate change and its effects, it has from a societal point of view, become more desirable to adopt and install CO₂ neutral power plants. Even if this has increased the competitiveness of RETs in a political sense, the new goals for RET installations must also be met with economical viability. We propose that the direction of technical development, as well as the chosen technology in new installations, should not primarily be determined by policies, but by the basic physical properties of the energy source and the associated potential for inexpensive energy production. This potential is the basic entity that drives the payback of the investment of a specific RET power plant. With regard to this, we argue that the total electric energy conversion system must be considered if effective power production is to be achieved, with focus on the possible number of full loading hours and the Degree of Utilization [2]. This will increase the cost efficiency and economical competitiveness of RET investments, and could enhance faster diffusion of new innovations and installations without over-optimistic subsidies. This paper elaborates on the overall problem of the economy of renewable electric energy conversion systems by studying the interface between physics, engineering and economy reported for RET power plants in different scientific publications. The core objective is to show the practical use of the Degree of Utilization and how the concept is crucial for the design and economical optimization disregarding subsidies. The results clearly indicate that the future political regulative frameworks should consider the choice of renewable energy source since this strongly affects the economical output from the RET power plants.     

Distributed solar renewable generation: Option contracts with renewable energy credit uncertainty

Solar energy is rapidly emerging thanks to the decreasing installation cost of solar panels and the renewable portfolio standard imposed by state governments, which gave birth to the Renewable Energy Credit (REC) and the Alternative Compliance Payment (ACP). To make profits from the REC market in addition to reduced energy costs, more and more home and business owners choose to install solar panels. Recently, third-party financing has become a common practice in solar panel investments. We discuss optimal timing for the host to potentially buy back the solar panels after being installed for a period of time and how to incorporate the optimal timing into a power purchase agreement between the host and the third-party developer. Because the REC price is a major source of uncertainty and also due to the ACP capping the REC price, we first propose a REC price forecasting model that specifically considers the ACP values. Then by a modified real option structure, we model the buyback contract as a real option and solve it with an approximate dynamic program based Monte Carlo simulation method. We find that as the ACP value increases, the value of the buyback option also increases under optimal timing. The method used does not only apply to solar projects but also to other distributed renewable projects that are third-party financed, such as wind generations.     

Electricty generation from woody biomass fuels compared with other renewable energy options

The future New Zealand biomass resource from exotic plantation forest arisings could supply 970 GWh/year by the year 2002. Associated wood processing residues could supply 280 GWh/year. Purpose grown fuelwood plantations could supply 2060 GWh/year with potential to rise to 10,000 GWh/year by 2012.Currently the annual electricity demand is around 30,000 GWh 70% of which is generated by hydro power. Natural gas, a resource with estimated reserves of only approximately 14 years currently supplies 25% of generating capacity. This paper describes how part replacement of gas by biomass could be a feasible proposition for the future.Life cycle cost analyses showed electricity could be generated from arisings for (US)4.8–6 c/kWh; from residues for (US)2.4–4.8 c/kWh; and from plantations for (US)4.8–7.2 c/kWh. For comparison the current retail electricity price is around (US)4–5.5 c/kWh and estimates for wind power generation range from (US)5–10 c/kWh. Future hydropower schemes will generate power between (US)4–9 c/kWh depending on site suitability.     

应用于新能源发电的有源钳位隔离型Boost变换器

传统的隔离型Boost变换器需要使用两个及以上的磁性元件,造成磁性元件数量偏多。文章提出了一种新型有源钳位隔离型Boost变换器,该变换器将变压器、输入电感和谐振电感集成在一个磁性元件中,变换器的开关管数量及增益特性与传统的隔离型全桥Boost变换器相同。通过设置原边有源钳位电路,变换器中所有开关管的电压应力不超过变换器的最高输入电压;设置副边谐振倍压网络,变换器实现了整流二极管的零电流关断。最后在一台500 W的样机进行试验,试验结果验证了该变换器的可行性。     

Study on electrical energy and prospective electricity generation from renewable sources in Australia

Nowadays renewable sources are being used as clean sources to generate electricity and to reduce the dependency on fossil fuels. The uses of renewable sources are being increased in electricity generation and contributed to reduce the greenhouse gas emission. The function of any electrical power system is to connect everyone sufficiently, clean electric power anywhere and anytime of the country. This can be achieved through a modern power system by integrating electrical energy from clean renewable sources into the nation's electric grid to enhance reliability, efficiency and security of the power system. The paper on the status of review the driving force of the generation of renewable energy and proposing electrical energy generation from renewable sources to be ensured at least 20% of total energy of Australia. This paper has been studied the existing electricity generation capacity of Australia from renewable and non-renewable sources. Optimal electricity generation from renewable sources has been examined. The environmental impact of electricity generation from renewable sources has been considered. Under this paper the yearly average wind data of past 20 years and above for some meteorological stations of Australia have been used. The prospective electricity generation from wind turbines and solar photovoltaic panels has been proposed in the paper that will increase electrical energy of the power grid of Australia. It was estimated the capital cost of prospective electricity generation farms from wind and solar PV sources.     

Regional spillover effects of renewable energy generation in Italy

In a multivariate setting, we document that renewable energy generation has a positive impact on economic growth at the regional level in Italy. We do so by adopting panel data unit-root and cointegration tests as well as Granger non-causality tests relying on the system GMM estimator. Our results are interpreted in three ways. Renewable energy generation alleviates balance-of-payments constraints and reduces the exposure of a regional economy to the volatility of the price of fossil fuels and to negative environmental and health externalities deriving from non-renewable energy generation. Therefore, our evidence supports policies promoting renewable energy generation. In an appendix we show that our results are robust to the adoption of alternative econometric methods and definitions for our energy variable. They are also stable over time.