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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.

PAPERS:

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 here
Utility 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
Telangana state to get 1000MW solar power Solar panels power for the kayak!

South Korea's nuclear safety regulator has approved a seven-year licence extension for the refurbished and uprated Wolsong 1 pressurized heavy water reactor (pictured). The unit has been offline for two years while discussions continued on renewing its licence. — World Nuclear News

Latest Articles
Residential rooftop solar is the most expensive form of electricity
On: 03-03-2015 Topic: General

When David Owens, (pictured) EVP of business operations group and regulatory affairs for the Edison Electric Institute, briefed Wall Street on Wednesday, he was clear in his remarks about rooftop solar.

“I’d like to correct the pervasive misperception that our industry is working to stop rooftop solar,” he stated. “Quite the opposite.”

He then went on to note that residential rooftop solar is the most expensive form of electricity generation in the US, at $3.60 a watt, compared to $1.88 a watt for utility-scale solar, citing GTM Research figures.

The figures are accurate, “but that’s comparing apples to oranges,” said Shayle Kann, SVP of research for GTM Research.

“Residential solar goes to meet a residential customer's load, so the right comparative metric is whatever that customer would otherwise pay for electricity.”

That metric varies across the US, but even so, residential solar is increasingly competitive.

A study by the North Carolina Clean Energy Technology Center last year found a fully financed solar PV system costs less than the energy purchased from a residential customer’s local utility in 42 of the 50 largest cities in the US.

The prepared remarks were meant to highlight the role of Edison Electric Institute members in supporting rooftop and community solar, as well as utility-scale solar and wind, but in context, they showed an industry organisation grappling with a new way of doing business that is arriving faster than some of its members are prepared for.

While some utilities, large and small, are very interested in being the energy services providers of the future, others are digging their heels in.

That dichotomy is increasingly clear as EEI speaks for a large industry in flux.

Owens noted “change” is the buzzword of the electric industry.

He called for utilities to be the distribution system operators and grid platform providers, drawing on some of the terminology being used by New York’s Reforming the Energy Vision plan.

He also called for utilities to be able to go behind the meter and invest in cutting-edge solutions.

“Rooftop solar customers still rely on the grid and its services around the clock,” said Owens.

In some ways, the organization seems to fail to fully recognize the new energy economy is already at the doorstep.

EEI is bullish on a recovering economy translating into increased electric use, although GDP and electricity consumption have been largely decoupled in the US for at least a decade.

EEI took issue with subsidies for renewables but also called for wholesale markets that maintain fuel diversity and flexibility, mostly in the form of traditional generation.

The organisation also criticized the timeline of EPA’s Clean Power Plan, saying there would not be enough time for the infrastructure upgrades needed to switch to a cleaner power fleet.

“The 2020 interim goals must be substantially revised, if not eliminated entirely,” said Quinlan Shea, VP of environment for EEI, adding, “EPA also failed to consider the electric system as a whole when setting standards and compliance goals.”

But a report out from The Brattle Group on Thursday finds the analysis by the North American Electric Reliability Corporation and assertions by EEI are not necessarily founded and reliability will not be compromised.

“We find that the concerns raised by NERC about potential reliability issues arising from compliance with proposed carbon emissions standards are largely overstated,” Jurgen Weiss, senior researcher and lead author of The Brattle Group report, said in a statement.

“With the tools currently available for managing an electric power system that is already in flux, we think it unlikely that compliance with EPA carbon rules will have a significant impact on reliability.”

During the meeting, EEI’s president Thomas Kuhn outlined some top priority items for the organization in 2015, including grid security, reforming net energy metering to ensure that rates “recognize the value of the grid and address fixed-cost recovery,” tax reform, and advocating that the EPA’s Clean Power plan has “achievable” goals.

Depending on how effective EEI’s lobbying is on the latter point, it could work against the vision that Owens laid out in the same discussion, calling for more microgrids, storage, energy efficiency, demand response, along with “innovative thinking, not to mention a cleaner generating fleet.” — The Energy Collective




Other Articles

Latest Articles
 
Residential rooftop solar is the most expensive form of electricity

When David Owens, (pictured) EVP of business operations group and regulatory affairs for the Edison Electric Institute, briefed Wall Street on Wednesday, he was clear in his remarks about rooftop solar.

“I’d like to correct the pervasive misperception tha Read More..

 
ETS revival postponement?

A simmering disagrement between EEC member states about when to start a market stability reserve for the bloc’s struggling emissions trading system has been taken up a political notch by Poland.

Polish PM Ewa Kopacz (pictured) has written to European comm Read More..

 
Spanish head to US for expansion

Spain's Iberdrola is buying UIL Holdings for about $3bln to gain further access to the US market.

“The transaction integrates Iberdrola United states and UIL, is dependable with team method and produces a sizeable organization in the United States, a Read More..

 
World first wave power comes on stream

Carnegie Wave Energy has officially switched on the onshore power station for its Perth Wave Energy Project, launching the world’s first commercial-scale grid connected wave energy array and marking the first time in Australia wave-generated electricity has been fed into Read More..

 
SA nuclear: To be or Not to Be

The question of nuclear power for Australia has been raised several times over the last 60 years but usually on the conservative side of politics.

Apart from anything else, there has not been a strong need — the country has abundant coal located clo Read More..

 
Iran goes for more nuke stations

Iran must become a builder of nuclear power plants, President Hassan Rouhani told an administrative meeting in the province of Bushehr.

Rouhani also visited the Bushehr nuclear plant where he announced the construction of two more units.

A Read More..

 
Consumers pay
wind to shut down

Latest industry figures show £53.1m was handed out to green energy companies over the past 12 months for shutting down turbines.

The money is paid by consumers through a subsidy added on to electricity bills.

The turbines have to be shut do Read More..

 
America goes for more blackouts

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 Read More..

 

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England's DECC says hundreds of jobs will be created in Yorkshire and Humberside as Dogger Bank development becomes largest renewable energy project to receive UK planning consent. Energy and Climate Change secretary Ed Davey said the two wind farms, which combined will provide 2.4GW of capacity from up to 400 turbines, has “"the potential to support hundreds of green jobs and power up to 2m homes".” The project still needs to secure a support contract through the government’s contract for difference subsidy regime and will require a final investment decision from the Forewind development consortium which brings together RWE, SSE, Statkraft and Statoil. However, if the project proceeds it will become the largest offshore wind farm in the world and the second biggest power generation facility in the UK behind the Drax thermal power plant in North Yorkshire. Davey hailed the decision as: “another great boost for Yorkshire and Humberside” and the wider green economy. “Making the most of Britain's home-grown energy is creating jobs and businesses in the UK, getting the best deal for consumers and reducing our reliance on foreign imports,” he said. The spin continued with: “Wind power is vital to this plan, with £14.5bln invested since 2010 in an industry which supports 35,400 jobs.”

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.

Israeli firm Werpo is planning to generate 500MW of sea wave power capacity as part of moves to ease the erratic power supply in Ghana. Director Shmuel Ovadia said it is hoping to rake in “tens of millions of dollars” in revenues from the installations. Werpo, which stands for Wave Electricity Renewable Power Ocean, holds the intellectual property, technology, know-how and contracts previously associated with Israel-based sea wave power firm SDE Ltd. The company has similar joint ventures in China and the Caribbean.