An emergency demand response mechanism for cloud computing

We study emergency demand response (EDR) mechanisms from data centers’ perspective, where a cloud data center participates in a mandatory EDR program while receiving online computing job bids. We target a realistic EDR mechanism where: i) The cloud provider dynamically packs different types of resources on servers into requested VMs and computes job schedules to meet users’ requirements; ii) The power consumption of servers in the cloud is limited by the grid through the EDR program; iii) The operating cost of the cloud is considered in the calculation of social welfare, measured by electricity cost. We propose an online auction for dynamic cloud resource provisioning under the EDR program, which runs in polynomial time, achieves truthfulness and close-to-optimal social welfare for the cloud ecosystem.postprin

Profitability analysis on demand-side flexibility: A review

Flexibility has emerged as an optimal solution to the increasing uncertainty in power systems produced by the continuous development and penetration of distributed generation based on renewable energy. Many studies have shown the benefits for system operators and stakeholders of diverse ancillary services derived from demand-side flexibility. Cost-benefit analysis on these flexibility services should be carried out to determine the profitable applications, as well as the required adjustments on energy market, price schemes and normative framework to maximize the positive impacts of the available flexibility. This paper endeavors to review the main topics, variables and indexes related to the profitability analysis on demand-side flexibility, as well as the influence of energy markets, pricing and standards on revenue maximization. The conclusions drawn from this review demonstrate that the profitability of flexibility services considerably de-pends on energy market structure, involved assets, electricity prices and current ancillary services remuneration.Peer ReviewedPostprint (published version

Data-Intensive Computing in Smart Microgrids

Microgrids have recently emerged as the building block of a smart grid, combining distributed renewable energy sources, energy storage devices, and load management in order to improve power system reliability, enhance sustainable development, and reduce carbon emissions. At the same time, rapid advancements in sensor and metering technologies, wireless and network communication, as well as cloud and fog computing are leading to the collection and accumulation of large amounts of data (e.g., device status data, energy generation data, consumption data). The application of big data analysis techniques (e.g., forecasting, classification, clustering) on such data can optimize the power generation and operation in real time by accurately predicting electricity demands, discovering electricity consumption patterns, and developing dynamic pricing mechanisms. An efficient and intelligent analysis of the data will enable smart microgrids to detect and recover from failures quickly, respond to electricity demand swiftly, supply more reliable and economical energy, and enable customers to have more control over their energy use. Overall, data-intensive analytics can provide effective and efficient decision support for all of the producers, operators, customers, and regulators in smart microgrids, in order to achieve holistic smart energy management, including energy generation, transmission, distribution, and demand-side management. This book contains an assortment of relevant novel research contributions that provide real-world applications of data-intensive analytics in smart grids and contribute to the dissemination of new ideas in this area

Guidebook to Carbon Neutrality in China

This Open Access publication focuses on China’s goal of achieving peak carbon emissions in 2030 and carbon neutrality by 2060. The book is the first to systematically build a framework combining a top-down and bottom-up analysis of this acute topic. What does carbon neutrality mean for economics in China? Might it imply stagflation or is it an opportunity to maximize the potential of green manufacturing? The book offers a comprehensive analysis of how the pursuit of carbon neutrality may influence the development of China's economy, and the country's biggest industries, while foreseeing the likely changes in people's lifestyles. In total, the book constructs a comprehensive path for China's carbon neutrality drive from the perspective of the green premium. This effort lays the foundation for a discussion of the country's emissions reduction plan. The book goes further, calculating the investment required for different sectors to achieve carbon neutrality, and illustrating the roles of carbon pricing and green finance in this undertaking. The book’s information comes from a network of primary sources, including experts in the field and noted academics, to depict potential low-carbon roadmaps and green transitions in major industries. Emphasized is green development in sectors that will be critical to civilization, including in technology, energy, manufacturing, transportation, and urban planning, which are backed by in-depth discussions and analyses. Accessible and academically rigorous, the work is anchored in the economics of carbon neutrality, extends to potential policy implications and identifies investment opportunities. This valuable reference will attract readers interested in public policy, economics, finance, and investors who seek to better understand China's prospects in the low-carbon economy of the near future

Greening IT : How greener it can form a solid base for a low-carbon society

272 p.Libro ElectrónicoInformation Technology is responsible for approximately 2% of the world's emission of greenhouse gases. The IT sector itself contributes to these greenhouse gas emissions, through its massive consumption of energy - and therefore continuously exacerbates the problem. At the same time, however, the IT industry can provide the technological solutions we need to optimise resource use, save energy and reduce greenhouse gas emissions. We call this Greening IT. This book looks into the great potential of greening society with IT - i.e. the potential of IT in transforming our societies into Low-Carbon societies. The book is the result of an internationally collaborative effort by a number of opinion leaders in the field of Greening IT. Tomado de http://www.amazon.com/gp/product/8791936020The Greening of IT is a symptom of a much larger challenge for humankind - transitioning from economic childhood into maturity. Despite the emergence of large regional alliances such as the EC, humankind remains incredibly fragmented; and yet the need for global climate and energy policies is pressing. IT offers tantalizing technical solutions to our emissions and growth dilemma: it can grow greener and help with the greening of other industries. This book explores this potential.AcknowledgementsDisclosure1 Prologue2 Our Tools Will Not Save Us This Time - by Laurent Liscia3 Climate Change and the Low Carbon Society - by Irene N. Sobotta4 Why Green IT Is Hard - An Economic Perspective - by Rien Dijkstra5 Cloud Computing - by Adrian Sobotta6 Thin Client Computing - by Sean Whetstone7 Smart Grid - by Adrian Sobotta8 How IT Contributes to the Greening of the Grid - by Dr. GeorgeW. Arnold9 The Green IT Industry Ecosystem - by Ariane Rüdiger10 Out of The Box Ways IT Can Help to Preserve Nature and Reduce CO2 - by Flavio Souza11 From KPIs to the Business Case - Return on Investment on Green IT? - by Dominique C. Brack12 Computing Energy Efficiency - An Introduction - by Bianca Wirth13 A Future View: Biomimicry + Technology - by Bianca Wirth14 Greening Supply Chains - The Role of Information Technologies - by Hans Moonen15 EpilogueReferencesInde