China's Regional Feedgrain Markets: developments and prospects

This report provides the Australian grains industry with an in-depth understanding of China's feedgrain markets at both the regional and national levels. It also provides useful information to other Australian industries whose businesses are related to the use of feedgrains and who ,have an interest in the Chinese market such as livestock, pulses and feed industries. In recent years, China's demand for feedgrain has been increasingly recognised as an important issue and many believe that any future increase in total grain demand in China will be mainly caused by an increasing demand for feedgrains. On the other hand, it seems that, in the longer term, China will Dot be able to supply enough feedgrains with its domestic resources. As a major grain exporter. it is essential for Australia to gain improved understanding of China's feedgrain market developments and prospects. It is for this important reason that GRDC supported this project (GRDC Project Number US282) to look into China's feedgrain issues

Evolving trends of grain production in China

Grain is China’s most significant agricultural product, its output being the most watched indicator by government officials, traders and researchers inside and outside China. This paper looks into China’s grain production trends in the recent decade, both before and after China’s WTO accession. It examines changes in total grain output, grain crop composition, regional distribution of grain production, and also changes in production technologies and costs. The paper concludes by addressing a number of emerging issues that are likely to affect future grain production in China

Unlocking the flexibility of combined heat and power for frequency response by coordinative control with batteries

Owners of combined heat and power (CHP), e.g., industrial manufacturers, are motivated to provide frequency response to power grids due to clear financial benefits. Yet, the slow response speed of CHP limits its capability in providing such services. Moreover, frequent adjustments would cause a faster lifetime reduction of CHP and rapid pressure fluctuation in the gas network. To further unlock the flexibility of CHP, this paper integrates a battery unit with CHP via a power electronic interface. A filter-based coordinative controller is designed for smoothing short-term fluctuations in CHP outputs. Based on the filter parameters and frequency response requirements, the minimum required capacity of the battery is identified. The results show that the proposed system enhances the capability of CHP for frequency response and mitigates the associated adverse effects on the gas network. The required capacity of the battery is economically feasible considering the benefit it brings to the CHP

State-of-the-art analysis and perspectives for peer-to-peer energy trading

As a promising solution to address the “energy trilemma” confronting human society, peer-to-peer (P2P) energy trading has emerged and rapidly developed in recent years. When carrying out P2P energy trading, customers with distributed energy resources (DERs) are able to directly trade and share energy with each other. This paper summarizes and analyzes the global development of P2P energy trading based on a comprehensive review of related academic papers, research projects, and industrial practice. Key aspects in P2P energy trading are identified and discussed, including market design, trading platforms, physical infrastructure and information and communication technology (ICT) infrastructure, social science perspectives, and policy. For each key aspect, existing research and practice are critically reviewed and insights for future development are presented. Comprehensive concluding remarks are provided at the end, summarizing the major findings and perspectives of this paper. P2P energy trading is a growing field with great potential and opportunities for both academia and industry across the world