Topic
Stand-alone power system
About: Stand-alone power system is a research topic. Over the lifetime, 8650 publications have been published within this topic receiving 192397 citations. The topic is also known as: Stand-alone photovoltaic power system.
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01 Jan 2013
TL;DR: In this article, a concept of three-generation power grid was put forward, and the main characteristics of the three generations of power grids were compared, based on the theory of intergenerational inheritance in social science.
Abstract: The development processes of domestic and foreign power grids were summarized.According to the development of power grids and related technologies,the process of power grid development can be divided into 3 stages.Borrowing from the theory of intergenerational inheritance in social science,a concept of three-generation power grid was put forward,and the main characteristics of the three generations of power grids were compared.The first generation power grid was developed from around 1900 to 1950,featured by small generation unit,low voltage power transmission and small grid.The second generation power grid was developed from about 1960 to 2000,featured by lager generation unit,extra/ultra-high voltage power transmission,interconnected grids,and large-scale power production.The development of the third generation power grid was launched at the beginning of the 21st century,and expected to be completed over 2050,featured by intelligence and non-fossil fuel generation holding a significant share.The third generation power grid is characterized as being intelligent and sustainable.The power grid refers to the general grid in this paper,including generation,transmission,distribution and loads.Therefore the third generation of power grid can also be referred as the third generation of power systems.The new situation and new challenges in the development of power grids were analyzed and the power grid technology development in the next 40 years was forecasted.
55 citations
TL;DR: In this article, the authors investigated the impacts of measures designed to increase the competitiveness of coal-fired power plants in future energy systems, which are facing restrictions related to CO2 emissions and variable operation as a consequence of high penetration levels of wind and solar power.
55 citations
TL;DR: In this article, the authors examine policy instruments that aim to decarbonize electricity production by replacing fossil fuel energy with intermittent renewable sources, namely, wind and solar power, and consider a...
Abstract: We examine policy instruments that aim to decarbonize electricity production by replacing fossil fuel energy with intermittent renewable sources, namely, wind and solar power. We consider a...
55 citations
TL;DR: In this paper, the idea of adding energy storage devices to the grid is investigated and its effect is studied on the efficiency of distribution grids and the objective function introduced in this paper calculates electricity grid losses while considering limitations of using ESS devices.
55 citations
TL;DR: In this paper, the authors use a linear programming optimization model to identify least-cost pathways to decarbonize Canada's electricity sector, and find that new transmission connections between provinces and a substantial expansion of wind power in high wind locations such as southern Saskatchewan and Alberta could reduce electricity sector emissions at the lowest cost.
Abstract: Canada’s electricity sector is predominantly low-carbon, but includes coal, natural gas, and diesel fuelled power plants. We use a new linear programming optimization model to identify least-cost pathways to decarbonize Canada’s electricity sector. We co-optimize investments in new generation, storage and transmission capacity, and the hourly dispatch of available assets over the course of a year. Our model includes hourly wind speed data for 2281 locations in Canada, hourly solar irradiation data from 199 Canadian meteorological stations, hourly demand data for each province, and inter- and intra-provincial transmission line data. We model the capacity of hydropower plants to store potential energy and respond to variations in renewable energy output and demand. We find that new transmission connections between provinces and a substantial expansion of wind power in high wind locations such as southern Saskatchewan and Alberta could allow Canada to reduce electricity sector emissions at the lowest cost. We find that hydropower plants and inter-provincial trade can provide important balancing services that allow for greater integration of variable wind power. We test the impact of carbon pricing on Canada’s optimal electricity system and find that prices of $80/tonne render Canada’s coal-fired plants uneconomic.
55 citations