Showing posts with label green. Show all posts
Showing posts with label green. Show all posts

Wednesday, October 30, 2013

2013 to be Record Year for Offshore Wind

Offshore wind power installations are on track to hit a seventh consecutive annual record in 2013. Developers added 1,080 megawatts of generating capacity in the first half of the year, expanding the world total by 20 percent in just six months.

Fifteen countries host some 6,500 megawatts of offshore wind capacity. Before the year is out, the world total should exceed 7,100 megawatts. Although still small compared with the roughly 300,000 megawatts of land-based wind power, offshore capacity is growing at close to 40 percent a year.

In 1991, Denmark installed the world’s first offshore wind farm, a 5-megawatt project in the Baltic Sea. The country’s offshore wind sector has since alternated between lulls and bursts of activity. Since 2008, Denmark’s offshore wind capacity has more than tripled, topping 1,200 megawatts by mid-2013. Over 350 megawatts of offshore wind power were plugged into the grid in the first half of the year—all of it to complete the 400-megawatt Anholt project, which is expected to meet 4 percent of Danish electricity needs.

Denmark already gets more than 30 percent of its electricity from wind—onshore and offshore—and aims to increase that share to 50 percent by 2020. At about one third the size of New York State, Denmark has the world’s highest wind power capacity per square mile, so it will rely mostly on offshore expansion to hit the 2020 target.

Denmark was first to put wind turbines in the sea, but today it ranks a distant second to the United Kingdom in total offshore wind generating capacity. More than 500 megawatts of new offshore wind power went online in U.K. waters in the first half of 2013, bringing the country’s grand total to over 3,400 megawatts—enough to power more than 2 million U.K. homes.

The bulk of this new offshore capacity went to completing the 630-megawatt first phase of the London Array, now the world’s largest offshore wind farm. It overtook another U.K. project, the 500-megawatt Greater Gabbard wind farm, which was finished in 2012. In all, the United Kingdom has some 12,000 megawatts of offshore wind capacity under construction or in earlier development stages.

Belgium’s offshore wind capacity grew 20 percent to 450 megawatts in the first half of 2013, placing it third in the world rankings. Germany reached 380 megawatts of offshore wind and will have at least 520 megawatts by year’s end. Beyond this, the German offshore industry expects another 1,000 megawatts will connect to the grid in both 2014 and 2015.

Countries in Asia are starting to make offshore wind power more than just a European affair. China, for example, brought its first offshore wind farm online in 2010. Since then, China has quickly climbed to fourth in the world, with 390 megawatts. The official goal is for 5,000 megawatts of wind capacity in Chinese waters by 2015, ballooning to 30,000 megawatts by 2020.

In Japan, where land is at a premium and where the future of nuclear energy is in question, offshore wind is gaining attention as a potentially huge domestic, carbon-free power source. A 16-megawatt project inaugurated in the first half of 2013 bumped Japan’s offshore wind capacity to 41 megawatts.

Because Japan lacks much shallow seabed in which to fix standard offshore turbines, new floating turbine technology is likely the future for offshore wind there. Off the coast of Fukushima prefecture, a 2-megawatt floating turbine will begin generating electricity in November 2013, the first stage of a 16-megawatt demonstration project. If it performs well, the hope is to expand the project’s capacity to up to 1,000 megawatts by 2020.

Floating turbines may actually be a big part of future offshore wind development at the global level. Not only do they greatly expand the area available for wind farms, they also have the potential to dramatically reduce the cost of offshore wind generation, which today is more than twice as expensive as that from turbines on land. While offshore wind manufacturers have managed to achieve cost reductions for the turbines themselves—through lighter, stronger materials and increased efficiency, for example—these savings have thus far been offset by the rising cost of installing and maintaining turbines fixed to the seabed as projects move into deeper waters.

The renewable energy consultancy GL Garrad Hassan notes that working around harsh weather becomes much easier with floating turbines: when conditions are favorable, relatively cheap tugboats can bring a turbine to the project site for quick installation, avoiding the need for specialized installation vessels. The turbine can be floated back to shore when the time comes for maintenance, lowering both cost and risk.

The world is gaining experience in using this young technology. In the last few years, Norway’s Statoil and Seattle-based Principle Power have both deployed floating wind prototypes successfully, in Norwegian and Portuguese waters, respectively.

In June 2013, the United States at last joined the offshore wind club when a 20-kilowatt (0.02-megawatt) floating wind turbine anchored off the coast of Maine first sent electricity to the state’s power grid. The turbine developer, DeepCwind, a consortium led by the University of Maine, plans to deploy two much larger versions, 6 megawatts each, in 2016.

The first full-fledged offshore wind farm in the United States, though, will likely be of the traditional variety fixed to a foundation in the seabed. Three proposals—Massachusetts’ 470-megawatt Cape Wind project, Rhode Island’s 30-megawatt Block Island Wind Farm, and New Jersey’s 25-megawatt Fisherman’s Energy I project—are the closest to beginning construction.

U.S. offshore wind’s potential is staggering. According to the U.S. Department of Energy, shallow waters along the eastern seaboard could host 530,000 megawatts of wind power, capable of covering more than 40 percent of current U.S. electricity generation. Adding in deeper waters and the other U.S. coastal regions boosts the potential to more than 4.1 million megawatts.

This is consistent with the findings of a 2009 Harvard study that calculated wind energy potential worldwide. The authors estimated that in most of the world’s leading carbon dioxide-emitting countries, available wind resources could easily meet national electricity needs. In fact, offshore wind alone would be sufficient.

Clearly, the world has barely begun to realize its offshore potential. Indeed, in some countries, regulatory and policy uncertainty seem to be sapping offshore wind’s momentum just as it really gets going, clouding the picture for future development. The U.K. government, concerned about costs, recently changed its target date for 18,000 megawatts of offshore wind from 2020 to 2030. In Germany, turbine orders are scarce as developers await the new coalition government’s plans for regulations and incentives. And in China, offshore wind companies say the guaranteed price for the electricity they generate is set too low to stimulate rapid growth, calling into question whether the country can hit its ambitious goals for 2015 and 2020.

Reflecting the hazy outlook in these and other key countries, projections for global offshore wind capacity over the next decade or so—from research and consulting firms and from industry publications—range anywhere from 37,000 to 130,000 megawatts. Despite the impressive growth of recent years, it seems that the lower end of these forecasts is much more likely. We know there is practically no limit to the available resource. What remains to be seen is how quickly the world will harness it and give offshore wind power a more prominent place in the new energy economy.

For more information on wind power, see “After Record 2012, World Wind Power Set to Top 300,000 Megawatts in 2013,” by J. Matthew Roney, at www.earth-policy.org.

Copyright © 2013 Earth Policy Institute - Reblogged with premission

 

Saturday, November 24, 2012

Morocco leading the world towards a clean energy future

Morocco was the first country in the world to recognize the fledgling American Republic in 1777. Now, they are seeking clean energy independence and asking the world to join them in a green revolution.

This North African country, a constitutional monarchy about the size of California, has recently set a royal goal to ensure that 40 percent of its electricity demand is met from renewable energy sources by 2020. This is an extremely aggressive goal considering more than 90 percent of its current energy use is fossil fuel based and imported.

Astoundingly, with the cooperation of European and worldwide partners, Morocco has even grander plans to power itself entirely by renewable energy and potentially, in cooperation with other Northern African countries, export excess clean energy to Europe.

With these aggressive goals, it shouldn’t be surprising that King Mohammed VI of Morocco isn’t afraid of what anyone thinks when he talks about the reality of climate change. And talk he does.

In a message to world participants at the September 2102 conference in Morocco, Energy Challenges in the Euro-Mediterranean Region, King Mohammed said:

“Convinced of the vital importance of protecting and preserving the environment, and having realized at an early stage—thanks to its geographical location—the potential impact of climate change, my country resolutely opted for sustainable development which, needless to say, goes hand in hand with human development.”

In 2009, King Mohammed announced at a ceremony attended by U.S. Secretary of State Hillary Clinton a $9 billion solar project with the target of creating 2,000 megawatts of renewable power by 2020. According to the Moroccan Minister of Energy and Mining at the time, Amina Benkhadra, the “massive project” will combine economic and social development with environmental protection and efforts to tackle climate change. “The project will reduce energy imports by saving the equivalent of a million tonnes of oil per year and help protect the environment by cutting carbon dioxide emissions by 3.7 million tonnes annually,” said Benkhadra.”

Morocco’s foray into its green future started small, with encouragement of individual solar systems on homes, especially in remote areas with no power. The country rightly understood the importance of localized sources of power generation and micro grids. It was only in 2007 when Morocco installed its first, small 50 kilowatt photovoltaic power plant in Tit Mellil. Then things got on a roll. In 2007, Morocco installed 200,000 square meters of solar water heating panels. In 2008, a combined cycle solar and thermal plant of 427 megawatts was established. But, all this was just the tip of a huge wave of renewable activity which has positioned Morocco to be a major geopolitical player in renewable energy.

In 2010, the largest wind farm in Africa, consisting of 165 turbines, was inaugurated in northern Morocco.

Clean Technica reported in October 2012, that a new memorandum of understanding was signed between the Moroccan government and the Desertec Foundation, a German based entity, to strengthen plans to build a massive series of solar power plants in the northern part of Morocco. These plants will supply not only power for Morocco, but also feed clean energy to Europe via high voltage direct current transmission lines.

“Morocco is a not just a visionary in the region, but also a successful pioneer in the global transition to renewables,” said Dr Thiemo Gropp, director of the Desertec Foundation.

In a Clean Technica article, Morocco Stays Renewable Energy Course Amidst Arab Spring, it notes that, “also vital to the renewable energy/energy efficiency strategy’s success and job creation, Morocco is investing in building out a modern electricity grid and distribution lines. These are key to the government’s plans to export green energy to Europe.”

The green headway Morocco is making shows the vital importance of strong leadership. More

 

 

Friday, August 24, 2012

Scientists Produce Hydrogen for Fuel Cells Using an Inexpensive Catalyst Under Real-World Conditions

ScienceDaily (Aug. 23, 2012) — Scientists at the University of Cambridge have produced hydrogen, H2, a renewable energy source, from water using an inexpensive catalyst under industrially relevant conditions (using pH neutral water, surrounded by atmospheric oxygen, O2, and at room temperature).

Inexpensive catalyst
Lead author of the research, Dr Erwin Reisner, an EPSRC research fellow and head of the Christian Doppler Laboratory at the University of Cambridge, said: "A H2 evolution catalyst which is active under elevated O2 levels is crucial if we are to develop an industrial water splitting process -- a chemical reaction that separates the two elements which make up water. A real-world device will be exposed to atmospheric O2 and also produce O2 in situ as a result of water splitting."

Although H2 cannot be used as a 'direct' substitute for gasoline or ethanol, it can be used as a fuel in combination with fuel cells, which are already available in cars and buses. H2 is currently produced from fossil fuels and it produces the greenhouse gas CO2 as a by-product; it is therefore neither renewable nor clean. A green process such as sunlight-driven water splitting is therefore required to produce 'green and sustainable H2'.

One of the many problems that scientists face is finding an efficient and inexpensive catalyst that can function under real-world conditions: in water, under air and at room temperature. Currently, highly efficient catalysts such as the noble metal platinum are too expensive and cheaper alternatives are typically inefficient. Very little progress was made so far with homogeneous catalyst systems that work in water and atmospheric O2.

However, Cambridge researchers found that a simple catalyst containing cobalt, a relatively inexpensive and abundant metal, operates as an active catalyst in pH neutral water and under atmospheric O2.

Dr Reisner said: "Until now, no inexpensive molecular catalyst was known to evolve H2 efficiently in water and under aerobic conditions. However, such conditions are essential for use in developing green hydrogen as a future energy source under industrially relevant conditions.

"Our research has shown that inexpensive materials such as cobalt are suitable to fulfil this challenging requirement. Of course, many hurdles such as the rather poor stability of the catalyst remain to be addressed, but our finding provides a first step to produce 'green hydrogen' under relevant conditions." More

 

Friday, July 6, 2012

Power-Generating Windows Offer New Horizons for Office Energy Efficiency

For solar enthusiasts on limited budgets, rooftop panels are no longer the only way to produce clean electricity. Try all of the south-facing windows, instead.

According to a recent article in Science Daily, “New Insights Into Power-Generating Windows,” Jan Willem Wiegman will graduate from TU Delft with with an Applied Physics Masters and his research into power-generating windows. As a student, he calculated how much electricity can be generated using luminescent solar concentrators. Importantly, these are not costly new windows he’s talking about, just windows that are fitted with a thin film of material, which absorbs sunlight, then directs it to narrow solar cells at the perimeter of the window. Wiegman shows the relationship between the colour of the material used and the maximum amount of power that can be generated.

Such power-generating windows might offer remarkable potential as an inexpensive source of solar energy that can attract many new renewable energy champions whose budgets have previously been restrictive in converting to solar energy.

For those wishing to dig deeper into the technology, Wiegman’s research article, written with his supervisor at TU Delft, Erik van der Kolk, has been published in the journal Solar Energy Materials and Solar Cells.

Urban office towers may be likely candidates for this energy generating application, as the majority of them feature more window square footage than what’s on the roof. More (http://s.tt/1h4W6)

 

Thursday, May 31, 2012

Transition to Green Economy Could Yield up to 60 Million Jobs

GENEVA, 29 May 2012 - The transformation to a greener economy could generate 15 to 60 million additional jobs globally over the next two decades and lift tens of millions of workers out of poverty, according to a new report led by the Green Jobs Initiative.

The study "Working towards sustainable development: Opportunities for decent work and social inclusion in a green economy " says that these gains will depend on whether the right set of policies are put in place.

"The current development model has proven to be inefficient and unsustainable, not only for the environment, but for economies and societies as well", said ILO Director-General Juan Somavia. "We urgently need to move to a sustainable development path with a coherent set of policies with people and the planet at the centre".

"The forthcoming "Rio+20" United Nations conference will be a crucial moment to make sure decent work and social inclusion are integral parts of any future development strategy", he added.

Achim Steiner, Executive Director of the UN Environment Programme (UNEP), said: "This report comes on the eve of World Environment Day on 5 June under the theme Green Economy: Does it Include You?".

"The findings underline that it can include millions more people in terms of overcoming poverty and delivering improved livelihoods for this and future generations. It is a positive message of opportunity in a troubled world of challenges that we are relaying to capital cities across the globe as leaders prepare and plan for the Rio+20 Summit," he added. More

 

Thursday, May 24, 2012

FINANCE-RE 2: Finance report and workshop

In 2011, the IEA-RETD commissioned and published the report‘Strategies To Finance Large-Scale Deployment Of Renewable Energy Projects: An Economic Development And Infrastructure Approach’.

The report concludes that In 2011, the IEA-RETD commissioned and published the report‘Strategies To Finance Large-Scale Deployment Of Renewable Energy Projects: An Economic Development And Infrastructure Approach’. The report concludes thatnew policy approaches are key to attracting massive flows of capital needed to scale up renewable energy. On April 17th 2012, a group of nearly 30 representatives from the banking and finance sector and government gathered in London to discuss the report’s findings as well as existing and possible new finance policy instruments, and their respective roles in mobilising new capital to the renewable energy sector. The study and workshop primarily addressed the role for governments in financing the large-scale deployment of renewable energy.

Policy brief

The main workshop findings are summarized in a policy brief. At this website you can download a short (one page) and longer (three pages) version of the policy brief.

Influencing the policy process

A key objective of IEA-RETD is to enhance the policy framework for accelerated deployment of renewable energy. One of the routes we use is empowering energy policy makers through the provision of information. As an example, the findings of the Finance workshop were directly plugged into Clean Energy Ministerial which was held in London on 25th and 26th April 2012. IEA-RETD continuously looks at suitable occasions to share policy recommendation with high level decision makers. More

 

Friday, May 18, 2012

Apple to use only green power for main data center

Apple Inc plans to power its main U.S. data center entirely with renewable energy by the end of this year, taking steps to address longstanding environmental concerns about the rapid expansion of high-consuming computer server farms.

The maker of the iPhone and iPad said on Thursday it was buying equipment from SunPower Corp and startup Bloom Energy to build two solar array installations in and around Maiden, North Carolina, near its core data center.

Once up, the solar farm will supply 84 million kWh of energy annually.

The sites will employ high-efficiency solar cells and an advanced solar tracking system.

Later in 2012, Apple also intends to build a third, smaller, bio-gas fuel-cell plant.

The two solar farms will cover 250 acres, among the largest in the industry, Apple CFO Peter Oppenheimer told Reuters. Apple plans on using coal-free electricity in all three of its data centers, with the Maiden facility coal-free by the end of 2012.

“I’m not aware of any other company producing energy onsite at this scale,” Oppenheimer said in a telephone interview. “The plan we are releasing today includes two solar farms and together they will be twice as big as we previously announced, thanks to the purchase of some land very near to the data center in Maiden, which will help us meet this goal.”

Concerns about the ever-expanding power consumption of computer data centers have mounted in recent years, as technology giants build enormous facilities housing servers to cater to an explosion in Internet traffic, multimedia use and enterprise services hosting, via cloud computing. More

 

Monday, December 6, 2010

America's Greenest Governor Discusses Smart Growth, Clean Energy

Mon Dec 6, 2010  Not many eco-leaders are tougher than the Governator, but even Arnold Schwarzenegger runs a close second to Colorado Gov. Bill Ritter. 

In a single term, Ritter has worked wonders at advancing a clean energy future for Colorado, establishing a precedent for other states to move past dirty coal and earning Greenopia’s title as America’s greenest governor. In this Q&A, Ritter reports on energy security, leadership, and what’s next.