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  • Ship-breaking exposes Bangladesh to climate change threat

    Ship-breaking exposes Bangladesh to climate change threat

    AFP May 2, 2010, 3:46 pm

     

     

    Abul Kalam (R) standsin front of a shipbreaking yard in Sitakundu some 30 kms from the port city of Chittagong. Kalam survived the 1991 cyclone by hanging on to a coconut tree. Those who survived -- including Kalam and his wife -- owe their lives to the protection provided by the trees, which is why they are concerned about the deforestation they re witnessing around them.

    AFP © Enlarge photo

     

    SITAKUNDU, Bangladesh (AFP) – When huge waves hit Bangladesh’s sleepy southeastern Sitakundu coastline after a cyclone in 1991, shopkeeper Abul Kalam survived by hanging on to a coconut tree.

    Kalam’s parents, brother, sister and young nephew and niece were among the 138,000 people killed that May when a tidal surge from the force-five cyclone destroyed his family’s house and the tiny fishing village they called home.

    Those who survived — including Kalam and his wife — owe their lives to the protection provided by the trees, which is why they are concerned about the deforestation they’re witnessing around them.

    “In 1991 we survived, but now we are surrounded by ship-breaking yards, there are hardly any trees left,” Kalam said.

    “I hung onto that coconut tree for dear life. The waves were so strong they ripped my clothes off.”

    In just two decades, Sitakundu beach has been transformed from a quiet, leafy shoreline into a sprawling industrial hub, home to one of Bangladesh’s largest, most profitable and most controversial industries: ship-breaking.

    Thirty percent of the world’s condemned ships are recycled in Bangladesh, and the industry creates tens of thousands of jobs and provides three-quarters of the country’s steel — but at a serious environmental cost.

    “More than 40,000 big trees were felled in the last six months to clear the way for new ship-breaking yards,” Mohammad Ali Shaheen, the Bangladesh head of the Platform on Ship-breaking lobby group, told AFP.

    “Not only are the yards dumping toxic waste on the coast, they are also clearing forests that have been painstakingly planted and nurtured to work as natural barriers to cyclones.”

    Local environmentalists say Bangladesh is on the frontline of climate change and that rampant deforestation, particularly by ship-breaking yards, is making things worse.

    In the past five years, Bangladesh has been hit by two cyclones which left 5,000 people dead, displaced millions and caused three billion dollars worth of damage.

    “There is now hardly any forest left along a more than 20-kilometre (12-mile) stretch of Sitakundu coast,” said professor Mohammad Kamal Hossain, a forestry expert at Chittagong University.

    “The ship-breakers have gobbled up most of the plantations, showing scant regard to the government’s environmental laws.”

    Felling old growth forests is illegal in Bangladesh but laws are not enforced as ship-breaking is a billion dollar industry and yards owners are some of the country’s top business tycoons, he said.

    Ships broken up in Bangladesh also routinely contain materials like asbestos, banned in many countries.

    The government’s recent attempt to impose strict environmental standards on the industry ended with an about-face within three months after devastating strikes threatened the country’s steel industry.

    The proposed law, which required ships to be certified by the selling nation’s environmental authorities, was amended to allow yards to bring in ships on their own declarations that the vessels are free from toxic materials.

    But the 100 shipyards in Bangladesh — up from just 36 in 2008, with all the new arrivals on the Sitakundu coast — are damaging the environment in more ways than just through these toxic chemicals.

    “Thanks to these ship-breakers, poor villages along the coast now have practically no natural protection against cyclones. If a major cyclone like Sidr hits, I am sure there will be hundreds of thousands of deaths,” Hossain said.

    Cyclone Sidr, which had wind speeds of up to 240 kilometres (150 miles) per hour, hit Bangladesh’s southwestern coast in November 2007, leaving at least 4,000 dead and millions homeless.

    Experts said Sidr’s toll was far lower than the 1991 cyclone as the Sunderbans, the world’s largest mangrove forest, stood in the path and bore the brunt of the storm.

    “The wind speed of the cyclone of 1991 (which hit the southeast coast) was far less than that of Sidr. Yet its death toll was 35 times more,” Hossain said.

    Jafar Alam, president of Bangladesh Ship Breakers Association — a powerful industry group — admits that some shipyards have cleared forests.

    “But they are not our members. They acted individually,” Alam said, adding that his association had promised to help the government take action against ship-breakers who illegally encroach on forest land.

    Addressing attacks on the industry regularly offered by groups like the NGO Platform on Ship-breaking, he told AFP that such organisations were “the lackies of foreign governments talking nonsense”.

    “There were no major forests where we set up our scrapyards. There is no question of us causing environmental damages,” said Alam, whose association oversaw more than 80 percent of the 200 ships broken last year in Sitakundu.

    “We are an important industry. We employ tens of thousands of people and directly and indirectly our worth is around three billion dollars,” he said.

    “There are more areas we are planning to set up yards as business is really booming.”

    Such talk sends shivers down Jyotindra Jaldash’s spine. The 70-year-old fisherman who lives in a village along Sitakundu coast said watching his childhood home transform into a shipyard has turned him into a cynic.

    “When the ships first arrived here, I liked the look of them when they were moored. But now they are everywhere. They have killed all the fish, they have cut the forests, and soon, they will drive us all out,” he said.

     

  • Gulf of Mexico oilspill spreads all the way to Capitol Hill

     

    The rig that suffered the catastrophic blowout was owned and operated not by BP but by Transocean, the world’s largest specialist, which may have lulled investors’ fears. When the legal bills are finally settled, that may limit the financial impact on BP. But the company, in the regulatory wording, is the “responsible party” for the field (it owns 65%) and that could be a key factor in the inevitable blame game.

    Unfortunately for BP, its political stock in the US can hardly be described as high. As recently as last October, a US government agency declared that BP still had “systemic” safety issues at Texas City, the refinery where 15 people were killed and 170 injured in 2005. Relations with the relevant agency are said to have improved since then but it’s not the best starting point for BP.

    As far as we know, its reaction to the latest incident has satisfied US officials. With 76 vessels trying to contain the spill, the company’s chief executive, Tony Hayward, has called the scale of the response “truly unprecedented”. That helped to create the impression that BP was ahead of the game. But news that the rate of leakage from the well could be five times worse than feared, and that the slick is reaching shore, has prompted the City to rethink. President Obama was only stating a fact when he said that BP is “ultimately responsible” for the cost of the spill and clean-up, but it was a reminder to BP’s investors that oil is always political.

  • There are lessons for Rudd in our forgotten election

     

    The house of review has been transformed into a house of obstruction. We should not be diddled into the belief the Senate somehow is more or even equally representative than the House of Representatives.

    The Senate represents the states, with the tiniest state having the same sized representation as the most populous state. The lower house represents the people. At least, that was the conception.

    Obstruction of the government’s legislation led one political and constitutional figure to observe, in those circumstances: ”A Senate opposition whose party had just been completely defeated at a general election would be in command of the nation. This would be absurd, as a denial of popular democracy.” (Bob Menzies.)

    The rorting of popular democracy really got up a head of steam after the election of the Whitlam government in December 1972. The leader of the opposition in the Senate, Reg Withers, said the arrival of a Labor government after 23 years of conservative rule was ”temporary electoral insanity”. The opposition was determined to destroy the newly elected government and its program of reform, and thereby purge the insanity.

    Rudd and co never strike one as great readers of history. However, they might cast their minds to the Whitlam era and the lessons of the May 1974 double dissolution election, and the subsequent first and only joint sitting of the unrepresentatives with the representatives.

    The House was passing vast amounts of legislation and the Senate was failing to pass it at a rate not seen since Federation. By April 1974, 10 government bills had been twice rejected by the Senate. Another nine had been rejected once.

    It took a misplaced punt by Withers and his troops to force a lower house election by monkeying around with the government’s supply bills that enabled Whitlam to ask the Governor-General, Paul Hasluck, to dissolve parliament and call a double dissolution election for May 18.

    The government was returned with its House of Representatives majority intact and increased numbers in the Senate; in fact, equal numbers with the opposition – 29 each, with two independents. In this ”forgotten election”, the voters expressed their unhappiness with an opposition that recklessly sought to trash the program the government was elected to implement less than 18 months earlier.

    This prompted the opposition leader, Billy Snedden, to proclaim the coalition had not been defeated, it ”just didn’t win enough seats”.

    Whitlam then sent to the Senate six bills that had been twice rejected and they were rejected again. They dealt with the establishment of a universal health insurance scheme (Medibank), electoral measures designed to give each vote the same value, and for the territories to have Senate and House representation.

    There was also a measure to regulate the exploration and development of natural resources, the Petroleum and Minerals Authority Bill.

    The scene was now set for an historic joint sitting of both houses of parliament to handle a ”stockpile” of legislation. There had been previous double dissolutions, but never a joint sitting of the parliament. All the bills so vehemently opposed by the Coalition were passed by 187 MPs sitting together.

    In Overland, Professor Jenny Hocking from Monash University argues that the joint sitting confirmed the political primacy of the House of Representatives in the formation and operation of government.

    The Liberals had also gone to the High Court to challenge every step of the way the process of the joint sitting and the bills to be considered there. They were unsuccessful with the exception of the resources legislation, which was struck down by the High Court.

    Importantly, the 1974 double dissolution election gave the government enough upper house support to subsequently get through two of attorney-general Lionel Murphy’s most hotly contested pieces of law, the Trade Practices Act and the Family Law Act. Both pieces of legislation were opposed by special pleaders, the opposition and even sections of the Labor Party. Yet they passed, thanks to Whitlam having the gumption to pull it on in 1974 and thanks to Murphy’s skilful manipulation of the Senate committee system and a determination never to give up.

    Fat lot of good it did the Labor Party in November the following year. But don’t you just wish Rudd had the balls to call the bluff of Abbott and his wreckers?

    justinian@lawpress.com.au

  • Bringing Utility-Scale Solar Power to the Grid

     

    Utilities are being challenged to embrace this rapidly evolving wave of change. Some have concerns that integrating a high volume of inverter-based photovoltaic systems and other distributed generation sources will lead to instabilities and the possibility of unsafe grid operations. Variable energy production and the fact that peak production from these sources does not always coincide with peak demand can reduce the value of PV’s impact on utility operating economics.

    The impact of distributed production on fault-protection and system repair safeguards can also be significant. These are valid concerns. It is clear that the old system of “one-way” power flow will not be sufficient in the future. A new paradigm of integrated systems offering two-way power, control and information sharing is required. Not only will the technical issues have to be solved, but utilities will have to adjust their historic view of the grid architecture to embrace distributed generation and work with the other parties involved to create an optimized solution.  (Left: This 100 kW installation by the Oregon DOT is one of the country’s first solar highway projects.  Courtesy PV Powered.)

    DOE Involvement

    Realizing the magnitude of the problems to be solved, the U.S. Department of Energy (DOE) has initiated the Solar Energy Grid Integration System (SEGIS) project. SEGIS brings together utilities with leaders in the field of photovoltaics, energy management and communications to develop the new products and technologies necessary to achieve high penetration of PV systems into the utility grid. Outcomes from this project will include advanced, highly-integrated inverters; new systems of communication; and less costly, more reliable system components, which will easily accommodate the two-way power and information flows required for seamless integration.

    In the current Phase 2 or “Design Phase” of the SEGIS project, five teams composed of industry-leading companies from across the country are working on various aspects of the project. PV Powered Inc., a Bend, Ore.-based maker of solar power inverters, leads a team charged with addressing the project’s core concerns: utility integration and control; system cost, reliability and efficiency; and integration with building monitoring and control systems.

    As an increasing number of utility-scale PV power plants are being connected to the grid, problems are being identified. These relate to the distributed PV resource’s intermittent nature and the inherent conflict between a power generation source and existing grid interconnect standards governing distributed PV system connection to the grid.

    Both problems are complex and their final solution may be realized only when interconnection standards have been changed to embrace PV as a key energy generation asset for utilities. Additionally, smart grid communications infrastructure will likely be required to fully solve these problems at a level that addresses high PV penetration in the case of highly distributed solar generation.

    As first steps toward this goal, SEGIS team members PV Powered and Portland General Electric (PGE) have integrated two-way communications between the solar power plant and PGE’s GenOnSys distributed supervisory control and data acquisition (SCADA) system. This enables the utility to receive status information and assert control commands as necessary, including disconnecting its fleet of distributed resources remotely if needed.

    As PV penetration increases, the problem of how PV systems detect and react to grid variations becomes increasingly critical to overall grid stability. More interactive controls are required to ensure that inverters will disconnect when necessary, but will be able to stay on-line when drops in utility voltage and frequency levels occur. PV can assist in riding through these temporary fluctuations. This function is typically implemented by a sophisticated set of algorithms that perform passive monitoring and active control within an inverter to determine if an unintentional island has been created (where the PV system sends power into a section of the utility grid experiencing an outage). Present-day inverters cannot differentiate between a true utility outage (where anti-islanding is necessary) and a grid disturbance or brownout in which the PV system could actually help support grid stability. Even if these inverters could differentiate between these conditions, current regulations sometimes require the inverter to disconnect from the grid when additional power is most needed.

    A better method for island detection is being developed by the SEGIS team that PV Powered is involved with. This team is using a pioneering application of synchrophasor measurements to enable the inverter to differentiate between a true unintentional island and a situation where grid support from the PV plant is required.

    Synchrophasor measurements are taken at different locations in a power system using the same absolute time base. This provides an accurate and reliable method of correlating values from various locations that take different amounts of time to arrive at a common collection point.

    To accelerate PV penetration, it is essential that the cost of energy from PV systems continues to decline when compared to conventional sources. Here, cost is broadly defined to encompass not only initial cost but reliability, energy harvest and overall lifecycle costs as well embracing the goal of achieving the lowest total cost per kilowatt-hour over a system’s lifetime.

    The inverter/controller is the heart of a PV system. As PV penetration expands and production volumes rise, the cost of inverters is coming down. However, cost is only one part of the equation — inverters can also decrease the lifetime cost per kilowatt-hour (kWh) by offering better performance, higher reliability and more integrated features that improve energy harvest.

    System Reliability

    High reliability is a key part of managing overall lifecycle costs. Frequent service calls and repairs or system component replacements can significantly reduce a system’s value. Some proposals being explored to improve reliability include expanded use of integrated circuits, thermal management, surge protection, self-diagnostics, reduced overall parts count and eliminating the least reliable components or using selective redundancy to ensure inverter uptime. Additionally, data aggregation and analysis protocols are being developed to improve reliability predictions for individual components and each system as a whole. Finally, new design features are being implemented to reduce the cost and complexity of installation and servicing.

    Harsh environmental conditions further tax PV system reliability. Hydroelectric, nuclear and coal- or gas-fired power plants typically reside in a controlled environment such as a building. By contrast, most solar PV power plant components are directly exposed to the outside environment, subjecting them to temperature fluctuations and extremes, humidity, corrosives, dust and other location-influenced stresses. All this must be factored into any reliability analysis. To accurately predict solar inverter component stresses and associated wear-out mechanisms due to natural cycles, a complex time-dependent modeling approach is required. Because temperature cycling contributes to device wear-out, simpler constant hazard rate calculations that might apply in other situations often are not accurate in this case. PV Powered has created a set of time-dependent prediction tools and analytical methods to predict real-world inverter reliability with greater accuracy and granularity than methods commonly used today. (Above: A mobile solar cart used to test different array technologies as part of the SEGIS development project. Courtesy PV Powered)

    Ensuring maximum energy harvest is a function of a number of factors, including a given system’s efficiency, reliability and uptime and the system’s ability to adapt to dynamically changing irradiance conditions. Within an inverter, the maximum power point tracking (MPPT) algorithm (which varies the ratio between the voltage and current delivered by a solar array to deliver maximum power as the array output changes) is a key factor in maximizing overall solar power plant efficiency. As inverter power conversion efficiency from the arrays nears theoretical maximum, the accuracy and efficacy of the MPPT algorithm emerges as one of the few remaining high-value opportunities to increase total energy harvest. Quantifying MPPT efficiency and developing a new MPPT algorithm that provides highly accurate tracking efficiency over static and dynamic irradiance conditions is a challenge in terms being able to adapt MPPT behavior to various PV materials and fast changing environmental conditions. PV Powered is testing an MPPT algorithm that may deliver superior performance under a variety of conditions and PV materials.

    Another key factor in improving energy harvest is managing weather-related irradiance transients. Unlike other forms of power generation, a solar power system’s inputs are inherently variable due to weather and fluctuations in cloud cover. Without active management power output to the grid can be highly variable and disruptive. This is one of the main barriers to high-penetration PV. Use of irradiance forecasting can mitigate the effects of irradiance transients. SEGIS research is working to develop forecasting methodologies at both the utility level (where forecasting can allow more optimal integration into utility real-time dispatch processes) and the inverter level, where timely insights into cloud position, movement and transparency may be used to “soften” any transients the utility sees.

    From small residential systems to solar farms and utility-scale installations, PV power systems have continued to mature and expand to the point where they are a viable part of the distributed-generation energy future. While significant challenges to successfully implementing high PV power penetration onto the U.S. grid remain, through collaborative efforts such as the SEGIS program, teams of industry and utility experts are working through the issues and developing the technologies that will enable a bright future for distributed utility-scale solar power. 

    Tucker Ruberti joined PV Powered in 2007 and is director of product management. Mr. Ruberti earned a BS in Industrial Engineering from Cornell University and an MS in Environmental Management & Policy from the Rensselaer Polytechnic Institute. He has worked for a range of companies including Westinghouse, General Electric, the New York State Energy Research and Development Authority, Sunlight Solar and IdaTech.


    Sidebar: Solar Energy Grid Integration Systems Projects

    • Apollo Solar: Advanced Grid-Tied Inverter, Charge Controller, Energy Monitor and Internet Gateway
      Developing advanced modular components for power conversion, energy storage, energy management and a portal for communications for residential-size solar electric systems. Pursuing inverters, charge controllers and energy management systems that can communicate with utility energy portals for implementing two-way power flows of the future.
    • Petra Solar: Economically Viable, Highly Integrated, Highly Modular SEGIS Architecture
      Advancing grid interconnection coupled with lower costs, higher system reliability and safety through low-cost, easy-to-install modular and scalable power architectures. Developing multi-layer control and communication with PV systems to achieve monitoring and control for a cluster of alternating-current module inverters integrated with a strategic energy management system box.
    • Princeton Power: Demand Response Inverter
      Designing innovative commercial-scale demand-response inverter, based on a new, unique circuit and new material, component, and packaging technologies. Developing optimized design for low-cost, high-quality manufacture that will integrate control capabilities (that is, dynamic energy storage and demand-side load response).
    • PV Powered: MPPT Algorithms, EMS Integration and Utility Communications Advancements
      Creating a suite of maximum power point tracking algorithms to optimize energy production from the full range of PV module technologies. Integrating communications with facility energy management systems and utility management networks.
    • University of Central Florida, Grid-Smart Inverters:
      Researching concepts to enhance intelligent grid development with PV that incorporate optional battery storage, utility control, communication, monitoring functions, and building energy management systems. Developing anti-islanding strategy for PV inverters to allow PV generation to remain connected during some grid disturbances, while meeting safety operation requirements. Designing new inverter architectures that bring more stability to the grid.
  • Rudd retreats on web filter legislation

     

    Senator Conroy’s spokeswoman said the government was not deterred by this criticism.

    The government was still consulting with internet service providers and considering public submissions; once that process was complete, it would introduce the legislation into parliament, the spokeswoman said.

    Australian Christian Lobby managing director Jim Wallace was disappointed.

    “The minister has done an excellent job on this . . . and I would like to see it legislated because it was an election promise,” he said.

    Opposition communications spokesman Tony Smith said Senator Conroy should come clean on when he would release the legislation.

    NICOLA BERKOVIC

  • Coalition argues for sustainable population

     

    Under the policy, the Productivity Commission would be restructured as the Productivity and Sustainability Commission.

    In a system similar to the inflation band the Reserve Bank uses for setting interest rates, the new commission would establish a population growth band with upper and lower limits of growth.

    The growth band would be set every five years or so, taking into account such factors as the economy, skill demands, environmental stresses and infrastructure such as roads and housing. Each year the migration intake would be adjusted to ensure population growth stayed within the band.

    The Coalition would also put updated population projections in the budget each year.

    All migrant streams – classified as anyone with a visa for 12 months or more – would be subject to assessment every year, including foreign students.

    ”The Coalition will exercise flexibility within programs to reprioritise intakes to ensure a primary focus on skilled migration,” the policy says.

    Population has become a sensitive political issue since late last year when the Treasury estimated that at current immigration and birthrates, Australia’s population of 22 million would reach 36 million by the middle of the century.

    The Prime Minister initially endorsed the figure, saying he welcomed the prospect of a ”big Australia”. The government has since backed well away from the statement, saying 36 million is a forecast, not a target.

    Kevin Rudd recently appointed Tony Burke as Population Minister and charged him with coming up with a policy over the next 12 months to keep population growth on a sustainable footing.

    The most recent Herald/Nielsen poll found 54 per cent of voters found immigration levels were too high, an increase of 11 points since November last year.

    Also, 51 per cent believe 36 million was too many people, 27 per cent said it was just right, and only 2 per cent felt it was too few.

    Yesterday Mr Abbott emphasised repeatedly Mr Rudd’s endorsement of a big Australia.

    ”Australia’s large cities are choking on their traffic and Australia’s environment is under pressure everywhere and that’s why the Coalition rejects Mr Rudd’s big Australia population target of 36 million people,” Mr Abbott said.

    Mr Burke turned on Mr Abbott, saying his claim the government has a target of 36 million ”is a lie”.

    ”It’s merely a projection from Treasury. It is not a target. Not an ambition. Not a policy,” he said.

    ”At least they’ve started to realise this issue is about infrastructure and sustainable growth. The next step for the Coalition will be if they can finally acknowledge regional difference.

    ”Both Mr Abbott and Mr Morrison need to leave Sydney for even a minute and start understanding the population pressures are very different in different parts of the country.”