David B. Smith This is a book about the application of economic theory to a unique form of social control - public utility regulation. A central theme of this work is to examine the role that economics has played in shaping the rationale and direction of regulatory practices. While economic theory has played an important role in the shaping of regulatory policy in the past, it has an even greater potential role to play in the future as the regulatory community grapples with the many challenges of a changing economic environment. This is a very timely and much needed piece of work that can serve as a reference for decision makers who are facing the challeng ing problems of deregulation and competition. This work is comprised of 13 selected articles that guide the reader from an initial discussion of why we decided to regulate certain industries in the first place to a specific analysis of what role economic theory has played in the electric, natural gas, telecommunications, and water indus tries, and whether it should be allowed to play an even more dominant role in the future. The reader is then provided with a more modern version of what economists mean by the concept of natural monopoly and a menu of policy options that will allow society to derive any benefits from such a market structure."

David B. Smith This is a book about the application of economic theory to a unique form of social control - public utility regulation. A central theme of this work is to examine the role that economics has played in shaping the rationale and direction of regulatory practices. While economic theory has played an important role in the shaping of regulatory policy in the past, it has an even greater potential role to play in the future as the regulatory community grapples with the many challenges of a changing economic environment. This is a very timely and much needed piece of work that can serve as a reference for decision makers who are facing the challeng ing problems of deregulation and competition. This work is comprised of 13 selected articles that guide the reader from an initial discussion of why we decided to regulate certain industries in the first place to a specific analysis of what role economic theory has played in the electric, natural gas, telecommunications, and water indus tries, and whether it should be allowed to play an even more dominant role in the future. The reader is then provided with a more modern version of what economists mean by the concept of natural monopoly and a menu of policy options that will allow society to derive any benefits from such a market structure."

Globally, the demand for electricity is increasing significantly and thus there is a need for more power generation. As a result, environmental pollution from burning fossil fuels is accelerating climate change at an unprecedented pace, as evidenced by recent extreme weather events across the world. As such, several paradigm shifts in power and energy systems are happening to protect the environment, societies, and economies against climate change. As the world is planning for a future with low carbon emissions, today’s power system is transitioning from its existing traditional hierarchical structure to a more decentralized framework through innovative energy management techniques, such as peer-to-peer (P2P) sharing. Due to the potential benefits that P2P sharing can offer to electricity prosumers, consumers, and the grid, research, development, and pilot trials of P2P are advancing rapidly. To capture these developments in this emerging energy management paradigm, present in this monograph is a comprehensive review of various features of P2P sharing. To do so, first introduced is the network and market structures that are required to facilitate P2P sharing within a local community. Thereafter, a comprehensive overview of various challenges of P2P energy-sharing mechanisms at both virtual and physical layers is provided, followed by a discussion of technical approaches used in literature to address these challenges. Third, some emerging technological innovations that will be relevant to, and important for, the development of P2P sharing in future markets are introduced and discussed. Fourth, a summary of existing pilot P2P projects is provided, and this is followed by a summary of potential future research directions and a conclusion. Thus, by providing a holistic view of challenges and contributions to both virtual and physical layers of P2P energy systems simultaneously and in a structured way, this monograph delivers a comprehensive understanding of the core challenges that hinder the integration of P2P sharing in the current market model.

This report contains major- and trace-element concentration data for soil samples collected from 265 sites along two continental-scale transects in North America. One of the transects extends from northern Manitoba to the United States-Mexico border near El Paso, Tex. and consists of 105 sites. The other transect approximately follows the 38th parallel from the Pacific coast of the United States near San Francisco, Calif., to the Atlantic coast along the Maryland shore and consists of 160 sites. Sampling sites were defined by first dividing each transect into approximately 40-km segments. For each segment, a 1-km-wide latitudinal strip was randomly selected; within each strip, a potential sample site was selected from the most representative landscape within the most common soil type. At one in four sites, duplicate samples were collected 10 meters apart to estimate local spatial variability. At each site, up to four separate soil samples were collected as follows: (1) material from 0-5 cm depth; (2) O horizon, if present; (3) a composite of the A horizon; and (4) C horizon. Each sample collected was analyzed for total major- and trace-element composition by the following methods: (1) inductively coupled plasma-mass spectrometry (ICP-MS) and inductively coupled plasma-atomic emission spectrometry (ICPAES) for aluminum, antimony, arsenic, barium, beryllium, bismuth, cadmium, calcium, cerium, cesium, chromium, cobalt, copper, gallium, indium, iron, lanthanum, lead, lithium, magnesium, manganese, molybdenum, nickel, niobium, phosphorus, potassium, rubidium, scandium, silver, sodium, strontium, sulfur, tellurium, thallium, thorium, tin, titanium, tungsten, uranium, vanadium, yttrium, and zinc; (2) cold vapor- atomic absorption spectrometry for mercury; (3) hydride generation-atomic absorption spectrometry for antimony and selenium; (4) coulometric titration for carbonate carbon; and (5) combustion for total carbon and total sulfur.