Design of a weekly hybrid power market in China facilitating connection of large-scale renewable generation

2014 ◽  
Vol 25 (9) ◽  
pp. 1697-1716 ◽  
Author(s):  
Jianxue Wang ◽  
Xiuli Wang ◽  
Pingliang Zeng ◽  
Pei Sun
Keyword(s):  
Large Scale ◽  
Power Market ◽  
Renewable Generation ◽  
Hybrid Power

scholarly journals Effect of Hybrid Power Station Installation in the Operation of Insular Power Systems

Inventions ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 38 ◽  
Author(s):  
Bouzounierakis ◽  
Katsigiannis ◽  
Fiorentzis ◽  
Karapidakis
Keyword(s):  
Energy Storage ◽  
Power Systems ◽  
Power System ◽  
Large Scale ◽  
Storage System ◽  
Power Station ◽  
Hybrid Power ◽  
Load Demand ◽  
Test Operation ◽  
Hourly Data

Greece has a large number of islands that are isolated from the main interconnected Greek power system; however, a majority of them are to be interconnected in the mainland grid over the next decade. A large number of these islands present a significant amount of wind and solar potential. The nature of load demand and renewable production is stochastic; thus, the operation of such isolated power systems can be improved significantly by the installation of a large-scale energy storage system. The role of storage is to compensate for the long and short-term imbalances between power generation and load demand. Pumped hydro storage (PHS) systems represent one of the most mature technologies for large-scale energy storage. However, their advantages have not been proven in practice for cases of medium and small-sized isolated insular systems. Regarding Greece, which contains a large number of isolated insular systems, a PHS system in the island of Ikaria started its test operation in 2019, whereas in Europe only one PHS system operates in El Hierro (Canary Islands). This paper studies the effect of installing a wind-PHS hybrid power station in the operation of the insular power system of Samos, Greece, according to the latest regulatory framework. The implemented analysis uses real hourly data for a whole year, and examines the effects of such an installation considering investors’ and power system operators’ viewpoints. More specifically, the economic viability of this project under different billing scenarios is compared, and its impact on the insular power system operation for various PHS sizes is examined.

scholarly journals Long Term Impact of Grid Level Energy Storage on Renewable Energy Penetration and Emissions in the Chilean Electric System

Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1070 ◽  
Author(s):  
Serguey Maximov ◽  
Gareth Harrison ◽  
Daniel Friedrich
Keyword(s):  
Energy Storage ◽  
Large Scale ◽  
Level Energy ◽  
Renewable Generation ◽  
Low Carbon ◽  
Solar Pv ◽  
Electricity System ◽  
Long Term Impact ◽  
Grid Level

Chile has abundant solar and wind resources and renewable generation is becoming competitive with fossil fuel generation. However, due to renewable resource variability their large-scale integration into the electricity grid is not trivial. This study evaluates the long-term impact of grid level energy storage, specifically Pumped Thermal Energy Storage (PTES), on the penetration of solar and wind energies and on CO2 emissions reduction in Chile. A cost based linear optimization model of the Chilean electricity system is developed and used to analyse and optimize different renewable generation, transmission and energy storage scenarios until 2050. For the base scenario of decommissioning ageing coal plants and no new coal and large hydro generation, the generation gap is filled by solar photovoltaic (PV), concentrated solar power (CSP) and flexible gas generation with the associated drop of 78% in the CO2 emission factor. The integration of on-grid 8h capacity storage increases the solar PV fraction which leads to a 6% reduction in operation and investment costs by 2050. However, this does not necessarily lead to further reductions in the long term emissions. Thus, it is crucial to consider all aspects of the energy system when planning the transition to a low carbon electricity system.

Discussion on Application of the Multifunctional Jack-Up Platform

2012 ◽  
Vol 479-481 ◽  
pp. 1059-1065 ◽  
Author(s):  
Yan Hua Yang ◽  
Shu Cheng Jin ◽  
Yong Tao Zhang
Keyword(s):  
Wind Power ◽  
Large Scale ◽  
Life Support ◽  
Power Market ◽  
Offshore Wind ◽  
Rapid Rise ◽  
Offshore Wind Power ◽  
Marine Industry ◽  
Wind Power Installation ◽  
Jack Up

With the rapid rise of the marine industry, it is urgent need to develop the existing marine equipments. In order to meet the development of offshore wind power market and the construction of large-scale bridge over sea, marine machinery is melting towards large-scale, science, profession, intelligence, and multi-function. The study and development of the multifunction jack-up platform has a wide prospect, which integrating with piling, clear base, leveling, lifting, wind power installation, setting and providing life support for maritime and engineering. This article introduces our research status of existing multi-platform, illuminates the trends and application prospects, and puts forward a new multi-function jack-up platform for reference.

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