The Government must start thinking strategically about energy security to protect the UK's energy supply against short-term shocks and rising global energy prices, according to a report by MPs on the Energy and Climate Change Committee. Gas storage capacity needs to be increased in the UK to minimise the potential damage from supply interruptions or price spikes, the report argues. It reveals that the UK's current storage capacity amounts to only 14 days worth of gas supply - a dangerously low level compared with France which has 87 days worth of gas storage, Germany 69 and Italy 59. 19 gigawatts (GW) of ageing electricity plant will close by 2018 and the UK will become increasingly reliant on energy imports as North Sea oil and gas reserves decline. The report concludes that new electricity generation currently being built or planned will fill this "gap". But it urges the Government to ensure security of supply by delivering on its energy efficiency targets, rolling out smart meters - that can balance demand - and maintaining a diverse energy mix.

For electrical engineers, considers the creation and maintenance of a power supply that will not cause the loss of data or damage to sensitive equipment (particularly computers) by taking a break or getting sloppy for a second or two. Authors from manufacturers, equipment designers, and user companies overview the subject, describe the equipment and systems used, cite applications in air transport and telecommunications, and discuss the more technical topics of harmonic distortion, reliability, and the specification of equipment. No bibliography. Annotation copyright by Book News, Inc., Portland, OR

The topic of energy is one of the most pressing issues across the globe. In this bundle, consisting of Energy: What Everyone Needs to Know, Nuclear Energy: What Everyone Needs to Know, and Hydrofracking: What Everyone Needs to Know, readers will explore everything from the the basic scientific concepts of energy to questions surrounding the specific ways we obtain it.

Power Supply Devices and Systems of Relay Protection brings relay protection and electrical power engineers a single, concentrated source of information on auxiliary power supply systems and devices. The book also tackles specific problems and solutions of relay protection power supply systems and devices, which are often not dealt with in the literature. The author, an experienced engineer with more than 100 patents, draws on his own experience to offer practical, tested advice to readers. A Guide to Relay Protection Power Supply for Engineers and Technicians The first chapter reviews the electronics and primary elements of the system, including transistors, thyristors, optocouplers, logic elements, and relays, and their principles of operation. This background gives staff who service relay protection power supply systems the necessary electronics knowledge to help them work more effectively with the equipment. The next chapters of the book then cover built-in digital protection relay power supplies, battery chargers, accumulator batteries, uninterruptible power supply, and characteristic features of auxiliary DC systems at substations and power plants. The final chapters discuss questions and problems that engineers and technicians may face. These include insulation problems, issues in auxiliary DC power supply such as voltage dips, and electromagnetic disturbances such as blackouts, spikes, and surges. The author also explains how to address them. Suitable for beginners and experienced engineers alike, the book is written for those who work with relay protection systems and with AC and DC auxiliary power systems in power plants and substations. It combines theory and practical recommendations to provide a valuable reference on power supply devices and systems.