Review Category : Enerji

Alternative Energy is the future of energy

Alternative energy is a broad term referring to energy sources promoted as alternatives to those most commonly used. Today a number of carbon neutral sources are being developed and promoted as the key alternative energy sources of the future:

Güneş Enerjisi – clean, abundant, renewable energy from the sun
Wind Powerclean, efficient, low cost energy from the wind
Biomass Energyenergy from plants and other biological materials
Geothermal Energyvast power source from the earth’s molten core
Tidal Energypower from tidal currents and wave motion

Government participation in alternative energy development

Emphasizing the importance of alternative energy to the US economy, President Barack Obama made this statement discussing his economic recovery plan:

To finally spark the creation of a clean energy economy, we will double the production of alternative energy in the next three years. We will modernize more than 75% of federal buildings and improve the energy efficiency of two million American homes, saving consumers and taxpayers billions on our energy bills. In the process, we will put Americans to work in new jobs that pay well and can’t be outsourcedjobs building solar panels and wind turbines; constructing fuel-efficient cars and buildings; and developing the new energy technologies that will lead to even more jobs, more savings, and a cleaner, safer planet in the bargain.

To be effective, alternative energy has always required a cooperative effort between government, industry, and consumers. Because of the scale of the energy issue, and its impact on the economy, government investment, oversight, and planning are essential to an efficient energy market.

Alternative energy also relies on the government to provide investment in new infrastructure. Upgrades to the national electrical grid, known as the SmartGrid, will ensure that huge wind farms in the mid-west, and and solar electric generation projects in the deserts, can distribute their power to the cities where it is most needed.

What is the history of alternative energy sources?

Shifts from one source of energy toalternativesources have occurred numerous times over human history. Two transitions, from wood to soft coal, and from whale oil to petroleum were driven by depletion of the main fuel source. Simple economics dictated that as the main fuel source became scarce, driving prices higher, alternatives became more attractive. Crude oil, our primary source of energy today, is exhibiting characteristics of depletion as described by the peak oil theory, and is driving our current move to alternatives.

Alternative energy demand today

Today alternative energy demand is growing for many reasons. Prices of crude oil have fluctuated wildly in the past few years causing gasoline prices to triple to the $5 per gallon mark. This caused average Americans to think about energy in ways they hadn’t since the lastoil shockin the 70s, which caused shortages and rapid price increases. A spirit of nationalism combined with a cry for energy independence has boosted interest in local, renewable, alternative energy sources like solar and wind. Bugün, energy from the sun and wind holds a very small percentage of US energy output, but is now at a tipping point. Higher prices for crude oil and governmental incentives for alternatives are acceleratingwhich lower the to consumers and large utilities to adopt are , at prices competitive with energy from the grid, is attractive to many homeowners that can also see the value in renewable

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Alternative Energy

Everyday, the world produces carbon dioxide that is released to the earth’s atmosphere and which will still be there in one hundred years time.

This increased content of Carbon Dioxide increases the warmth of our planet and is the main cause of the so called “Global Warming Effect”. One answer to global warming is to replace and retrofit current technologies with alternatives that have comparable or better performance, but do not emit carbon dioxide.

We call this Alternate energy.

Tarafından 2050, one-third of the world’s energy will need to come from solar, wind, and other renewable resources. Who says? British Petroleum and Royal Dutch Shell, two of the world’s largest oil companies. Climate change, population growth, and fossil fuel depletion mean that renewables will need to play a bigger role in the future than they do today.

Alternative energy refers to energy sources that have no undesired consequences such for example fossil fuels or nuclear energy. Alternative energy sources are renewable and are thought to befreeenergy sources. They all have lower carbon emissions, compared to conventional energy sources. These include Biomass Energy, Wind Energy, Güneş Enerjisi, Geothermal Energy, Hydroelectric Energy sources. Combined with the use of recycling, the use of clean alternative energies such as the home use of solar power systems will help ensure man’s survival into the 21st century and beyond. Home security and home independency are the catch cries of the new era in sustainable development and self sufficiency.
Solar Power
From an environmental perspective, solar power is the best thing going. A 1.5 kilowatt PV system will keep more than 110,000 pounds of carbon dioxide, the chief greenhouse gas, out of the atmosphere over the next 25 yıl. The same solar system will also prevent the need to burn 60,000 pounds of coal. With solar, there’s no acid rain, no urban smog, no pollution of any kind.

Mankind has been crazy to have not bothered to harness the sun’s energy until now. Think about this. Go outside on a sunny day. The light falling on your face left the Sun just 8 minutes go. In that 8 minutes it traveled 93 million miles. Those photons are hauling and when they strike your PV module you can convert that motion to electricity. As technology, photovoltaics are not as glitzy as that new sport utility vehicle the television tells us to crave. But in many ways PV is a much more elegant and sophisticated technology.

Whether it be for your business or for your home, why not invest in Solar Panels.Today’s solar panels are bombproof and often come with a 25 year warranty or more. Your solar panels may outlive you. They are also modular—you can start with a small system and expand it over time. Solar panels are light (weighing about 20 pounds), so if you move you can take the system with you.

Grid interactive systems and net metering

Some utilities object to net metering. Usually the issue isn’t money, but control. They don’t want your juice on their wires or they don’t want to set a precedent that could come back to haunt them. There are some distributed generation technologies coming down the pike that utilities definitely won’t want to net meter, including fuel cells and 50 kw microturbines the size of beer kegs. However in the USA and Australia electricity suppliers are becomg more supportive of solar enegy buy back schemes.Also busineses can now take advantage of different suppliers of both gas and electricity and shop for the most economical. Utility Ecchange is one such company in the UK that gives comparison business gas prices for their customers.

Solar advocates delight in bashing utilities. But for all its faults, the industry has strung an amazing amount of wire. Rarely is an American or an Australian, or a European more than 50 feet from an electrical outlet. It’s an everyday miracle we take for granted. From an engineering perspective, the grid is a tremendous resource. A grid-tied PV system will be more efficient, arguably greener, and certainly cheaper than a backwoods one. More efficient because the inverter can track the modulesmaximum power curverather than the lower voltage needed to recharge batteries. Arguably greener because you don’t need batteries, which contain caustic chemicals, emit sulfurous gases, and eventually wear out. And much cheaper because, with the grid as backup, you don’t have to buy batteries, charge controller, control panel or generator.Right there, you’ve knocked up to $5,000 off a typical stand-alone system. Getting the price down is critical, because no one on the grid needs PV, at least not in the same way an off-grid homeowner needs it. We’ve already got juice. It may be from a nuke, it may be from a coal plant, it may be hydro (veya “embodied salmon”), but it’s there. To sell grid-connected PV systems you’ve got to get the price down and then help prospective customers understand that solar is to coal as a croissant is to a Twinkie. On a gut level, many people already grasp the key difference between fossil fuels and renewable energy. One is stealing from our kids, the other isn’t.

The current cost of solar panels means that grid-interactive systems do not pay for themselves in terms of the cost saving when compared with electricity from the grid. In spite of this, many people with grid connected houses are choosing to install grid-interactive solar systems, as they do not create any greenhouse gases when generating electricity, unlike coal-fired power plants. Numerous studies have demonstrated that the equivalent amount of electricity used to make a solar panel is generated by the panel within the first two years of operation, hence a solar panel will repay its greenhouse gasdebtwithin this time.

Wind Power
Societies have taken advantage of wind power for thousands of years. The first known use was in 5000 BC when people used sails to navigate the Nile River. Persians had already been using windmills for 400 years by 900 AD in order to pump water and grind grain. Windmills may have even been developed in China before 1 AD, but the earliest written documentation comes from 1219. Cretans were usingliterally hundreds of sail-rotor windmills [karşı] pump water for crops and livestock.

Bugün, people are realizing that wind poweris one of the most promising new energy sourcesthat can serve as an alternative to fossil fuel-generated electricity. The cost of wind has dropped by 15% with each doubling of installed capacity worldwide, and capacity has doubled three times during the 1990s and 2000s.As of 1999, global wind energy capacity topped 10,000 megavat, which is approximately 16 billion kilowatt-hours of electricity. That’s enough to serve over 5 cities the size of Miami, according to the American Wind Energy Association. Five Miamis may not seem significant, but if we make the predicted strides in the near future, wind power could be one of our main sources of electricity. Is your utility company offering your family the best rates?

Though wind energy is now more affordable, more available, and pollution-free, it does have some drawbacks. Wind power suffers from the same lack of energy density as direct solar radiation. The fact that it is avery diffuse sourcemeans thatlarge numbers of wind generators (and thus large land areas) are required to produce useful amounts of heat or electricity.But wind turbines cannot be erected everywhere simply because many places are not windy enough for suitable power generation. When an appropriate place is found, building and maintaining a wind farm can be costly. Itis a highly capital-intensive technology.If the interest rates charged for manufacturing equipment and constructing a plant are high, then a consumer will have to pay more for that energy. “One study found that if wind plants were financed on the same terms as gas plants, their cost would drop by nearly 40%.Fortunately, the more facilities built, the cheaper wind energy is.

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Austerity cuts harmful to the solar energy industry

The sun appears to be setting on large parts of the Czech solar industry with local operators blaming cheap Asian competitors and the imposition of aretrospective taxfor their financial woes.

While favorable, naturally sunny conditions softened the economic blow last year, many photovoltaic businesses say they’re now seeing their profits plungeor worse, turn into losses.

A number of major solar companies have confirmed they are also being forced to lay off staff, and the Czech Photovoltaic Industry Association (CZEPHO) says the sector needs restructuring and consolidation in order to compete with Asian producers.

The sector is totally destabilized,” said CZEPHO Director Zuzana Musilová. “The investors don’t know whether there will be any support in the future. They don’t believe the legislation, because it can be changed at any time.

The photovoltaic sector’s laments come at a time when political will to promote financial incentives is on the wane as austerity measures drive the Petr Nečas government to curb subsidy payouts to households that use green energy.

In May, the Constitutional Court rejected a petition from a group of senators to strike down the 26 percent retroactive tax placed on feed-in tariff subsidies, introduced in 2010.

In February, the Czech Energy Regulatory Office said it wanted to see an end to almost all incentives for renewable energy as early as 2014.

Among the companies now feeling the pinch is Fronius, which in 2010 was still riding the solar boom with sales of almost 1.4 billion Kč.

Geçen sene, production was well below the company’s expectations, and sales fell to 741,000 .

Schott Solar, the biggest producer of photovoltaic panels in the Czech Republic, is another company facing serious problems this year.

The Moravia-based firm is ending production and will dismiss 500 çalışanları, blaming the abundance of cheaper solar panels produced by Asian companies.

This problem should be solved on the level of the European Union, like the United States, örneğin, by customs measures. The government can help by supporting the sector and removing existing barriers,” Musilová said.

Martin Sedlák from the Alliance for Energy Independence argues a stable environment for the solar sector would ensure clean energy growth, reduce reliance on fossil fuels and reduce high electricity prices in the long term.

The solar tax will turn the Czech Republic into a living history museum of energy,” Sedlák said.

Supporters of solar say the Czech energy sector is far too dependent on fossil fuels and coal, which produces almost 90 percent of the country’s electricity, and they have lashed out at Prime Minister Nečas for drumming up support for nuclear energy in the EU.

Last month, the London-based Cookson Group closed its Solar Crucible production facility in Moravia, blaming plunging revenues at the business, which manufactures materials for solar cells.

The marked downturn in the global solar industry which started in mid-2011… has proved deeper and more extended than previously anticipated,” it said in its half-yearly report released July 25.

Cookson Chief Executive Nick Salmon said the solar energy sector was suffering from reduced state subsidies and overcapacity.

We might just have to tread water for a year or two,” dedi, adding the closure of the plant would help mitigate the impact of the downturn by cutting costs.

Members of the photovoltaic industry say bureaucratic and fiscal barriers mean that many local companies are looking beyond the domestic market to remain profitable.

More and more companies are looking for some opportunities abroad,” Musilová said. “They are successful not only in emerging markets such as the Bulgaria or Romania, but also in developed markets such as Germany, Britain and Italy.

Ancak, the Bulgarian government is now also considering whether to follow the Czech Republic’s lead by imposing additional taxes or fees on solar installations.

A final decision is expected this month, while Germany and Spain have already cut their generous feed-in tariffs.

Despite the cloudy outlook for the solar industry, there have been one or two recent bright patches for the sector.

Last month, TiSun announced it had finished the largest facade solar collector in the Czech Republic, at a nursing home in Ostrava-Mariánské.

TiSun said the solar thermal system which provides hot water for 200 residents took a year of planning, but the 176 square meters of solar collectors were mounted within just three weeks.

The residents of the nursing home in Ostrava-Mariánské use a lot of energy, since the majority of their daily activities take place in the building,” said a spokesperson of Apex Euro, the company contracted to install the 22 solar collectors.

News Desk can be reached at
news@praguepost.com

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Solar Energy Savings Limited shut down for mis-selling and false discounts

Tarafından
Tara Evans

11:48 EST, 3 August 2012

|

11:48 EST, 3 August 2012

A solar panel firm has been shut down after a High Court ruled it had mis-sold systems to customers using high pressure tactics and other illegal forms of sales practices.

An investigation into the firm, Solar Energy Savings Limited, by the Insolvency Service found that it has falsely led customers to believe that the company was government backed and that it was providing discounts of up to 30 per cent.

It also claimed that the salesmen overstated the performance of panels and returns on investments – with some customers subjected to two hour sales pitches.

Over: The firm promised false discounts of up to 30 per cent

Over: The firm promised false discounts of up to 30 per cent

Customers were also incorrectly told that systems would be reinstalled free of charge if they moved home.

The firm, which was based in Manchester started trading in early 2011 and had an annual turnover of more than £50million, asked customers to sign a contract with the promise that they would receive the purchase price back within five years through a scheme that did not exist.

Scott Crighton, investigation supervisor at the Insolvency Service, adı geçen: ‘Solar Energy Savings Limited persistently and deliberately flouted both statutory regulations and industry standard selling practices in order to generate sales and widely promoted a non-existent scheme in order to induce members of the public into signing a contract.’

The firm was taken to the High Court by the Secretary of State for Business, Innovation and Skills as a result of the investigation by the Insolvency Service.

The company did not carry out installations but sold panels to customers via telephone and home visits.

Earlier this week the Feed-in Tariff (FIT) rate for generated electricity was reduced from 21p to 16p per kWh, pushing the average annual earnings amount down from £622 to £474.

Ancak, the tax-free element and valuable Retail Prices Index inflation-linking of returns will stay and homeowners will see what they are paid for the small amount of energy they export back to the grid rise from 3.2p to 4.5p per Kwh.

The latest cut was announced earlier this summer and means that the major earnings driver on solar panel returns for homeowners has dived by 63 per cent in less than a year.

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Minnesota Dept. of Commerce to help streamline solar installations

When it comes to installing solar energy in Minnesota, advocates say, the path to going green is often snarled in red tape.

Getting building permits for fairly straightforward installations can take days — gereksiz yere, the advocates sayand the delays cost money as work crews and suppliers wait around.

So the Minnesota Department of Commerce is embarking on an effort called the Minnesota Solar Challenge to streamline solar energy permitting processes and remove zoning roadblocks across the state.

It took its first step Friday, August 3, by choosing the Minnesota Renewable Energy Society to coordinate outreach efforts educate cities and towns about what’s needed and what’s not when it comes to solar installations.

Örneğin, many building inspectors understandably worry about the extra weight of solar photovoltaic panels on roofs.

Some require installers hire a structural engineer to inspect the roof, said Laura Cina, managing director of the Minnesota Renewable Energy Society.

That can add $500 karşı $1,000 to the project,” dedi.

But if the panels are laid flat and tied to the trusses, they can actually help strengthen a roof, dedi.

Diğer taraftan, if the panels are raised off the roof at an angle, the wind can catch them and building inspectors should pay more attention to those installations, Cina said.

Cina will lead the effort to reach the cities and towns and help train their counter clerks and officials in a series of

regional workshops.

While some cities have restrictions on solar energy installations, most cities simply have no regulations addressing them, dedi.

The outreach effort will encourage those cities to adopt procedures modeled after those in St. Paul and Minneapolis, which are part of a U.S. Department of Energy program to encourage more rooftop solar installations.

Minnesota Commerce Commissioner Mike Rothman said working with local leaders to change permitting procedures or zoning barriers is a critical part of an effort to meeting the state’s renewable energy goals.

The Minnesota Solar Challenge, which is funded by a $260,000 Department of Energy grant, also has efforts to work on issues of interconnection with utilities and how much to pay for solar electricity sold into the grid from installations that make more than the customer uses, Cina said.

Cina’s program has a deadline of Feb. 15 next year to complete its work.

Leslie Brooks Suzukamo can be reached at 651-228-5475. Follow him at twitter.com/suzukamo

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Kennebec Valley Community College awarded $1M grant to help start solar energy training program

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Kennebec Valley Community College awarded $1M grant to help start solar energy training program

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Tuukka Rask was caught off guard when he heard fellow Bruins goalie Tim Thomas decided not to play next season. But he’s ready to lead the Bruins to another championship.

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45 Tripura villages use solar energy

STAFF WRITER 15:2 HRS IST

Agartala, Aug 3 (PTI) Perched on hills and remote areas
of Tripura, 45 villages and 797 localities were lit up with
solar energy in the last five years, a state minister said
today.

It was not possible to draw electric lines in those
remote areas, so solar energy was used to light up those
remote and hill top hamlets and localities,” science and
technology minister Joygobinda Debroy said in while releasing
a book ‘Science, Technology and Environmenthere.

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45 Tripura villages use solar energy

STAFF WRITER 15:2 HRS IST

Agartala, Aug 3 (PTI) Perched on hills and remote areas
of Tripura, 45 villages and 797 localities were lit up with
solar energy in the last five years, a state minister said
today.

It was not possible to draw electric lines in those
remote areas, so solar energy was used to light up those
remote and hill top hamlets and localities,” science and
technology minister Joygobinda Debroy said in while releasing
a book ‘Science, Technology and Environmenthere.

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Bainbridge City Hall now hums with solar energy

Tristan Baurick / Kitsap SunPuget Sound Energy meter technician Marshall Settle explains the first power readings from Bainbridge City Hall's new solar power system to one of its investors, Stephen Douglass, on Thursday. The system was activated this week, making the building partially powered by the sun.

Photo by Tristan Baurick

Tristan Baurick / Kitsap Sun
Puget Sound Energy meter technician Marshall Settle explains the first power readings from Bainbridge City Hall’s new solar power system to one of its investors, Stephen Douglass, on Thursday. The system was activated this week, making the building partially powered by the sun.



With the flip of a heavy switch, Bainbridge City Hall began humming with power drawn from the sun.

Hear that?” Puget Sound Energy technician Marshall Settle said after stepping away from the switch on Thursday morning. “It’s pumpinout energy.

City Hall’s array of 297 rooftop solar panels is expected to produce the equivalent of 20 percent of the building’s energy needs, according to Joe Deets, executive director of Community Energy Solutions, the Bainbridge nonprofit group that spearheaded the privately-funded project.

This is a great day for Bainbridge,” Deets said.

The $500,000 project was completely funded by 25 investors who live on the island.

CES leases a 200-foot-long portion of City Hall’s roof and will pay the city half the value of the electrical production. The other half will to the investors.

One of the investors, Stephen Douglass, snapped photos as the system charged up. He’s a former physics teacher who built a solar array for his home after he retired.

Why did I invest? Because I have a strong fear of global warming,” dedi. “And I hate wastage and I hate coal-fired power plants.

Deets estimated that the system will save the city about $30,000 on its energy bills over the next nine years.

The project was unanimously approved by the City Council late last year. Council members praised the project then as both good for the environment and the city’s bottom line.

Deets has been eying City Hall for a solar project ever since it was built more than a decade ago. It has an expansive, full-exposed, south-facing roof that he said seemed to be begging for solar panels.

The panels and much of the support equipment were produced by Washington state manufacturers, said Howard Lamb.

His company, Seattle-based Sunenergy Systems, designed and installed City Hall’s solar-powered system.

Sunenergy and CES teamed up for a campaign last year that put solar panels on 34 Bainbridge homes and businesses, more than doubling the island’s solar production capacity, according to Deets.

Bainbridge is now in the top five solar-producing cities in the state, Lamb said.

Bainbridge is really putting itself on the map,” dedi. “And now, with this new system on City Hall, awareness is really going to be raised on Bainbridge.

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