Tide and Time Wait for No One

Ireland's Strangford Lough is to be the site of the worlds first commercial tidal turbine.The lough has one of the fastest tidal flows on earth and is reasonably sheltered from inclement weather, making it an attractive location for the tidal power project. The technology was developed by Marine Current Turbines at a cost of £10 million and works on a similar principle to a terrestrial windmill. Two rotors, 15 to 20 meters in diameter, are fixed to the sea bed on a 300 ton rig. The turbines can pitch at up to 180 degrees allowing them to capture energy from the tide as it flows in and out of the Irish lough at 4 to 8 knots (roughly 7 to 15 kilometers per hour). When in operation the 600kW turbines generate enough energy to power 1000 U.K. homes. Up until mid July 2008 the turbines were supplying electricity to the national grid on a test basis. Then on July 17 the two turbines were damaged. The company states that the damage was caused by a "control system fault." Work began immediately to replace the turbine blades.

Despite the fact that this technology produces zero emissions British government support for this, and other similar projects, has been tepid at best. Most of the funding for this project was raised privately. Bernie Bulkin of Britain's Sustainable Development Commission says that Britain has " a number of highly competitive devices... some of which are ready to go into the water... government should be backing innovation and technology on this." However, as reported previously on this blog, the British government has decided to throw it's tax payer's money behind the construction of a new generation of nuclear power plants.

Strangford Lough is a protected habitat with a host of diverse marine life making their home there. Dr David Erwin, a former Chief Executive of the Ulster Wildlife Trust, and Chair of the independent group overseeing the project, noted that "small animals will pass right through the turbines..." However, he also stated that he is "a bit concerned" about larger animals, such as seals and basking sharks. They "just might get caught up in the turbines." He says.

The marine laboratory of Queen's University Belfast are in the process of carrying out a two year study to monitor seals, porpoises (whales, dolphins) and seabird activity in the Strangford Narrows near the £10 million tidal turbine. The influence of changes in the water flow pattern caused by the presence of the turbines will also be studied. In an unrelated topic Queen's University recently received an £850,000 grant for marine energy research. If their study shows any serious impact on the wildlife of Strangford Lough caused by the presence of the turbines the project will be stopped.

In our haste to solve the urgent problem of global warming let's hope we don't sacrifice the more vulnerable in our environment.

Do Geothermal Revolutions Power Your Home?

Italy is a country with an enormous cultural heritage, but did you know that the worlds first geothermal energy plant was invented in Italy? Would it surprise you to know that the technology was invented in 1904? Astonishingly, in the more than one hundred years since the invention of geothermal technology humanity seems to have ignored this gift from the earth in favor of fossil fuels.



In fact, despite the lack of support from government, a small number of forward thinking, progressive, U.S. companies have invested in geothermal technology and are actually providing clean renewable power to the U.S. power grid. In California's Salton Sea CalEnergy operate 10 geothermal energy plants with a combined output of 327 MW of power. A tiny proportion of America's power needs, yet a source which could be cultivated with the proper support.



So what's stopping us from using this clean renewable energy to power all of our homes? Well until recently the political will wasn't there. However, with the price of oil continuing to go up and up people, governments and industry are starting to look down for alternatives.

Germany, a country not known for it's hot springs or it's volcanic activity, has recently seen a massive jump in interest in geothermal. In Unterhaching near Munich a community driven geothermal project went online in June 2008. The plant is capable of producing up to 3.4 MW of electricity. This is the most modern geothermal plant in Germany and was delayed for almost a year due to competition from the oil industry for drilling resources.

With this abundant clean energy at our fingertips (under our feet would be more apt) why are governments still investing in fossil fueled power stations? What's extremely worrying is that not only are our governments not putting enough resources into renewable energy technologies, they are are about to compound their mistake and go nuclear. In January 2008 the British government announced that it was authorizing the construction of a new generation of nuclear power plants. Despite protests from the Irish government and others, they seem hell bent on following through with their plans.

It seems regardless of the danger to human life that nuclear plants pose, the radioactive pollution caused by their operation and the enormous hazard caused by the huge amounts of radioactive waste they generate, governments seem set to branch off in the wrong direction yet again.

In a speech given in Washington D.C. in July 2008 Al Gore challenged the American people to produce 100% of their energy from renewable sources within ten years. Are they up to that challenge? Are we?

The Quantum of Computing

Modern digital computers are smaller, faster and cheaper than their ancestors. However, although computers have become vastly more efficient at accomplishing their work, the work remains essentially the same. The work in question involves the manipulation of bits of information. The term "Bit" stands for "Binary Digit". Binary is a numbering system that represents values as sequences of zero's and one's. For example the number 13 can be represented by the sequence 1101.

Quantum Computing is an emerging field in computer science that differs fundamentally from digital computing in that it's basic unit of computation is not the Bit, but the Qubit. Unlike a Bit, which exists in a state of 0 or 1, a Qubit can exist as 0, 1, or simultaneously as both 0 and 1. This unusual property is possible due to an effect known as single-particle interference.



Single-particle interference can be visualized by imagining a laser firing a stream of photons into a light splitter. The splitter sends half the photons left and allows the rest to continue straight through. Given this information you might expect that each photon has an equal probability of traveling left or straight. However, quantum mechanics predicts that each photon travels both paths simultaneously.



Getting computers to do two things at once, or "Multitask" has long been the goal of computer scientists. Most household computers today appear to do several things at once, but generally this is an illusion created by making the computer switch between lots of different small tasks very quickly. Quantum Computers however, are capable of true multitasking, performing enormous parallel computations.

Theoretically the computers we have today can simulate the function of quantum computers. So why do we need quantum computers? Well although modern computers can theoretically simulate the function of quantum computers, it would be computationally too expensive to do so. Simulating a quantum computer with even a few dozen qubits is well beyond the capability of any computer made today.

The power of quantum computing should not be underestimated. In the future it may allow computer models to be advanced enough to predict tsunamis, with the potential to save thousands of lives. They may also be able to model our entire climate and ecosystem, helping us to reverse the damage of climate change and perhaps save the planet.

The Right Biofuel

Filled up your tank lately? Whatever you call it, petrol or gas, it's getting more expensive. Hard pressed consumers are demanding cheaper fuel and in our economic system, the free market, it's the suppliers job to meet that demand. So what do suppliers do? Well they do what any forward thinking industry would do. They look for alternative sources of fuel. Unfortunately, in their haste to meet consumer demand they stopped at the most expedient solution. Biofuel.

What made Biofuel an expedient solution was the fact that there was already an available source for the raw materials needed to manufacture it. Theoretically Biofuel can be made from any organic (carbon based) source. This includes plant and animal matter, and the most readily available supply of plant and animal matter is our food supply.

Faced with the ever increasing cost of fossil fuels and their contribution to Global Warming Environmentalists and Industry seemed to agree that Biofuels were the way of the future.



Today the worlds food supply is being siphoned into our fuel tanks at an alarming rate. In early July 2008 a confidential World Bank report published in a British newspaper claimed that Biofuels have forced global food prices up by 75 percent.

As always though the human cost is not the only cost. As the hype around Biofuels grew and governments started setting Biofuel targets, palm plantations sprouted out of the virgin forests of South-east Asia. These forests form the habitat for numerous species, including the orang-utan, the only great apes found outside Africa. Evidence suggests that fewer than 30,000 orang-utans exist in the world today. According to The World Wildlife Fund "The most serious threat to orang-utans is the destruction of their rainforest habitat... The main causes of this habitat loss are commercial logging, clearance for agriculture, and conversion to plantations."



Efforts are being made however, to move away from palm oil, and other destructive sources of Biofuel to more sustainable sources. Biofuel from algae has been recently touted as an eco-friendly way to produce Biofuel from non-food sources, such as switchgrass, corn stovers, wood chips and sugar cane. Algae are photosynthetic and consume carbon to grow. Nearly 50% of algae is vegetable oil. However, many of the carbon sources used to grow algae, such as sugars, still rely on agricultural land and/or destruction of forests.

The Solution?

A New Zealand company Aquaflow Bionomic Corporation are pioneering the production of Biofuel from wild algae harvested from open-air environments, such as the settling ponds of standard Effluent Management (EM) Systems. According to the company the "process can be used in many industries that produce a waste stream, including the transport, dairy, meat and paper industries." Amongst the benefits of using this approach is the fact that there is no competition with other carbon sources, such as our food supply. The process involves cleaning nutrient rich waste water from urban and industrial sources using existing infrastructures, and discharging clean water.

Companies around the world are attempting to harness the power of algae for the production of energy. While some approaches involve the consumption of sugars and other food sources, the more imaginative ones utilize algae to clean waste from our homes and factories while producing a sustainable form of energy.

Australia's Solar Power Tower

Amongst Australia's wealth of natural resources is sunlight. In fact Australians have so much sunlight they sometimes overlook it as a natural resource. In an area of Australia nicknamed "Sunraysia" for it's abundance of sunshine, an Australian company EnviroMission aims to build a solar energy plant on a scale never before seen.


The "Solar Power Tower" will be the worlds biggest solar power plant and one of the tallest structures ever built by man. Standing a kilometer high and with a base six times the size of New York's Central Park the tower is based on a well known principle. Hot air rises.

The base of the tower is an enormous greenhouse known as the expansive collector zone. As the Sun's rays beat down on the greenhouse the air inside becomes heated. With nowhere else to go the hot air rushes towards the tower and as it does it drives 32 x 6.25MW pressure staged turbines located at it's base.

The 200 Mega Watt tower will produce enough energy to power 200,000 homes without any harmful greenhouse gas emissions. That's the equivalent of taking 90,000 cars off the road.

Unlike a number of projects that have popped up over the last few years this technology is tried and tested. The prototype for the tower operated for seven years in Manzanares Spain and consistently generated 50kW output of green energy.



As well as being clean green and the way of the future it's set to join Ayres Rock and The Great Barrier Reef as one of the worlds most popular tourist attractions.

Harvest the Light of the Oceans with Solar Islands

A Swiss research and development company CSEM has been contracted by the United Arab Emirates to build a floating solar island. The plant will generate energy by concentrating sunlight onto water pipes. The pipes will convert water to steam, which can then be transferred to an onshore facility via tanker or pipeline, where it can be used to generate electricity and/or hydrogen.



The first stage of the project involves the development of a land based prototype in the deserts of the UAE. The prototype is one fifth the size that it's successor will be. It is being built at a cost of five million U.S. dollars, funded by the government of the UAE, and is around 100 meters in diameter.



The next sea based version is due to be in full production by 2011. It will be 500 meters in diameter. Eventually the platforms will reach 5 kilometers in diameter and will be capable of generating up to 1 Gigawatt of power. The entire platform will rest on a twenty meter high torus , that will also act as a steam storage receptacle. To ensure a maximum yield rate the platform will dynamically position itself towards the Sun using electric motors attached to it's circumference.

With 80% of the Earth's surface covered by water (most sunlight falls on the oceans) and the pressure on land in many countries increasing, it seems inevitable that solar energy production will move offshore in the future.

The Al Masdar Initiative

In January 2008 Prince Charles demonstrated his green credentials by delivering a speech to a green energy conference in Abu Dhabi as a hologram. The prince noted that if he had chosen to appear in person, his long-haul flight would have emitted nearly 15 tons of carbon dioxide, the greenhouse gas which is causing global warming. The prince delivered the speech to congratulate Abu Dhabi for it's plans to harness the power of natural resources to create a new zero carbon city called Masdar.

The "Al Masdar" initiative was announced in March 2006 with the goal of creating a city of 47,500 people with zero carbon emissions and based entirely on renewable energy sources.

The designers of the city envisage courtyards shaded by photovoltaic canopies, a fully automated electric mass transit system and a state-of-the-art photovoltaic power plant. As well as demonstrating zero carbon emissions Al Masdar will recycle 100% of it's waste and be entirely car free.

Not just a shining example of clean energy, Al Masdar is being designed with quality of life in mind. Large open spaces for recreation are planned and walking and cycling will be the most popular ways to get around.

In June 2008 Dr. Sultan Al Jaber, CEO of the Al Masdar Initiative testified before the U.S. Congress Select Committee on Energy Independence and Global Warming. “For the first time in history, more than half of the world’s population now lives in cities, with their traditional energy inefficiencies, waste and pollution,” Dr. Al Jaber told the Committee.

Will Al Masdar be, as it's designers envisage, the way all cities will be built in the future?

Your Water Powered Car

A Japanese company Genepax have unveiled a car that runs entirely on water. No this isn't a joke. The vehicle requires no external power supply. "The car will continue to run for as long as you have a bottle of water inside to add from time to time." A company spokesman said. According to Genepax the car will run for one hour at a speed of 80 kilometers per hour on one litre of water. And any kind of water will do. Sea water, river water, even tea can be used to power this vehicle.


The company point out on their website that no fossil fuels are used in the production of heat and electricity. The power plant of the car relys on a chemical reaction to seperate hydrogen from water to produce electrons that power the vehicle. The power plant, known as a Water Energy System (WES), is designed around a specially developed Membrane Electrode Assembly (MEA).

One of the more interesting points to note on this innovation is that the WES can be used ot power more than cars and vehicles. This technology can also be used in homes. Also, because of the small size of the power plant it can be used as a portable generator, providing relief to disastor areas, for example.

The company are hoping to go into production with a Japanese car manufacturer. So, sooner than we think topping up our tanks could become a lot cheaper and cleaner.

Nanotechnology and Mobile Devices

Nanotechnology is a field of science dealing with the manipulation of matter at the atomic and molecular levels, usually 100 nanometers or smaller, and the fabrication of materials and devices at that scale.

For many years technology companies have envisaged devices created using nanotechnology. Nokia believe that nanotechnology has the potential to radically change the way we view and use mobile devices within 7 years. They've recently launched a concept device to show us just what nanotechnology will do for our mobile experience.





In February 2008 they launched the Morph, a nanotechnology concept device developed by Nokia Research Center (NRC) and the University of Cambridge (UK).

Just about everyone has spilled something on their mobile at one time or another. Well, with the Morph that won't be a problem. The Morph will be superhydrophobic making it extremely dirt repellent. So that ketchup, or whatever it is you spill on your Morph, will just run right off.

Don't you just hate the way you have to keep charging your mobile. Well the Morph will solve that problem too. It will be able to charge itself from available light sources using photovoltaic nanowire grass covering it's surface. Nanowire grass will have far greater surface area than traditional materials, allowing our solar cells to become much smaller. And it's not just mobile devices that will benefit from this technology. Buildings could soon be generating their power from panels of nanowire grass.

Not sure about the food in that restaurant? What if your mobile had built in sensors that could detect specific chemical compounds in the air? You could simply wave it over the en tray and dine with an easy mind. It seems our mobiles will become ever more invaluable in the future.

Did you realize that nanoscale electronics become invisible to the human eye? This has the potential to deliver totally transparent devices. Imagine wafer thin screens. In fact, the electronics that run the entire T.V. could be built into the those wafer thin screens.

Nanoscale electronics also allow stretching. Nokia envisage that a nanoscale mesh of fibers, as strong as spider silk, will allow our mobile devices to be bent, stretched and folded into any number of conceivable shapes.

Here the Morph is viewed in a standard looking mobile configuration and in a "Wrist Mode". Perhaps you're not sure if that green will go with any of your outfits? Well not to worry. Just use the built in high definition camera and assign the pattern from your favorite dress as Morph's wallpaper.

Haptic technology will allow the Morph's surface to become context specific. Displaying real 3D buttons at one moment, while becoming flat as a pancake the next.

According to Nokia, connecting people will become a lot more interesting in the future.