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As building uses change more often ~ keeping pace with the rapid change in business needs and business types occupying them ~ building owners and facility managers must focus on how best to equip their asset to respond flexibly to future needs. One of the installations at the core of change is a building’s low voltage switchgear installation, which distributes, meters, measures and adjusts energy flow to the power needs of highly diverse functions. Such functions extend from lighting, heating, HVAC, lifts and standard building services, right through to mission-critical functions ~ such as data centres, telecommunications, retail accounting services, industrial and scientific processing and health and emergency services. Good low-voltage switchboard design is also critical to control of services that ensure high Green Star environmental ratings.
Increasingly, such diverse needs are being met by modular switchboards, which are designed to change with business needs and building uses. But there are different schools of thought about whether modular installations should be welded or bolted for optimum durability and adaptability to change.
Not many engineers and end users have the opportunity to examine and compare the large number of different modular systems and welded constructions that are available in the market today. To make this comparison harder, the technical differences between the different modular systems alone are profound, says Mr Terry Schweickle, Director of SMB Harwal, which is largest manufacturer of Australian-made LV switchboards in NSW. SMB produces the latest, third, generation of iNTELECT switchboards in Australia, extending an iNTELECT product line of which tens of thousands have been manufactured in Australia, giving reliable service in data centres, banks, schools, hospitals, power stations, shopping centres, mines and factories. Different versions of the iNTELECT range have been sold in over 23 countries. As one of Australia’s largest LV switchboard manufacturers, we manufacture and assemble switchboards of both bolted modular construction and traditional welded construction, says Mr Schweickle.
Comparison of PWM snd SVM based active filters
By S. Sherine, A.P, EEE Department, Bharath University
Abstract ~ The aim of this project is to simulate VSI and CSI based active power filters to Non-linear load for improving power quality. THD is used as measuring index for comparing performances of these filters. These filters can reduce harmonic in supply current. View hereUtility requirements document for small modular reactors
The Utility Requirements Document is a declaration of owner/operator requirements for new nuclear plants, large or small. More than 1200 specific changes were made in the revision to accommodate SMR designs, ranging from emergency planning and human factors design to detailed technical modifications associated with safety systems and building arrangement. Notably, the EPRI Utility Requirements Document can be used throughout a nuclear power plant project’s lifetime ~ before, during, and after technology selection ~ to support successful project execution. View here
Five Granard brothers have reinvented the wind turbine by thinking small and using a breeze rather than chasing the high winds. To ensure that the new type of wind turbines were stable in windy conditions, Jim Smyth had to create a radically new type of aerodynamically stable funnel that resembles a shroud. In recognition of the achievement, AirSynergy won the Technology of the Year Award at the Engineers Ireland Excellence Awards 2013. The company, which employs 20 people, have licensed out their technology. In the best tradition of great ideas, the rest of the world is now beating a path to their door. Our turbine design doubles the air speed at the rotor, which doubles the electrical power, which means you no longer have to chase the wind, Jim Smyth said. Presently only 10pc of the world's landmass has sufficient wind speed for generation; this technology opens up 80pc of the world - that's an eightfold increase. Presently electricity costs 22cKwh. Our machine can produce 1KW of electricity for less than 10c. The price will never go up, even in 20 years’ time - unless, of course, the government taxes the wind, In six to nine months time we will be launching a domestic unit. It will be about 30 metres tall and will produce 12,000KW hours per annum. It will cost euro;18,000. The Independent
Just like Paul Revere, the experts responsible for managing much of the electric grid in the United States are warning that the EPA’s “too much, too soon” approach to cut carbon emissions by shutting down coal-fired power plants will have disastrous consequences for reliab
E.ON will focus on renewables, distribution networks, and customer solutions and combine its conventional generation, global energy trading, and exploration and production businesses in an independent company.
The Electric Reliability Council of Texas anticipates implementation of the US Environmental Protection Agency’s proposed rule for reducing greenhouse gas emissions will result in the retirement of up half of ERCOT’s coal generation capacity, raise retail energy bills up t
Mercom Capital Group, llc, a global clean energy communications and consulting firm, released its report today (16/10/2014) on third quarter funding and mergers and acquisitions activity for the solar sector in 2014. Total global corporate funding in the solar sector, including venture capital, private equity, debt financing, and public market financing raised by public companies, jumped to $9.8bln, compared to $6.3bln in the second quarter of 2014. This quarter also saw the third yield Initial Public Offering so far this year, the $577m float of TerraForm Power, a subsidiary of SunEdison. Raj Prabhu, CEO of Mercom Capital Group, commented: financing activity was strong all around this quarter whether you look at VC, debt or public markets and it was the best fundraising quarter since tghe first quarter 2011. Venture capital funding in solar has now crossed $1bln in the first three quarters this year. Global veture capital and private equity funding, in the third 2014 totaled $326m in 21 deals, down from $452m in 22 deals in the second quarter 2014. Like the previous quarter, solar downstream companies attracted most of the venture capital funding in Q3, with $205m in 11 deals.
Electric Reliability Council of Texas contends power companies in Texas are increasingly turning away from the use of coal to generate electricity in favour of natural gas, solar and wind generators. Warren Lasher, ERCOT's director of system planning, said coal has always been in demand in Texas for power generation. Coal currently provides just under 40% of our energy usage on an annual basis, Lasher said. That is likely to decline. We don’t see any significant interest in new coal units in the interconnection process here at ERCOT. Lasher said expected decline is because of federal air pollution regulations that make it more costly. He said power companies currently using coal-fired plants may have to retrofit the plants to curb air pollution — a process that costs millions of dollars. Right now, it doesn’t look like coal is an economically viable resource on the grid, Lasher said. A case in point is CPS Energy’s Dealey coal-fired power plants, which are being retired in 2018 — 15 years earlier than planned. John Bonnin, CPS Energy’s operations director, said it is a matter of economics. One of the reasons is that we were facing some very expensive capital upgrades to keep them compliant with EPA regulations, Bonnin said.
Pioneer Power Solutions, Inc. has completed the purchase of 100% of the preferred stock of Titan Energy Worldwide, Inc. from 24 individual stockholders and a short-form merger between Titan and a wholly-owned subsidiary of Pioneer. As a result of the merger, each outstanding share of Titan common stock was cancelled and converted into the right to receive $0.0007 per share of Titan common stock. Furthermore, as a result of the merger, Titan ceased to be a public reporting company and its common stock will no longer be quoted for trading.