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Archive for November, 2009

Communicating Climate Change

Posted by ericww on November 26, 2009

Not obviously about homes this post; but we feel that being able to communicate environmental situations is important. Too often messages about climate change are abstract, difficult to picture and far too easily forgotten.

Not so with the work of David McCandless a London based author of Information Is Beautiful and designer. His ‘love pie, hate pie charts’ approach to presenting information gives a clear, simple and attractive representation to ideas and facts that may otherwise pass you by.

This excellent graphic shows how the Kyoto signatories are shaping up to their commitments as we approach the talks in Copenhagen designed to replace them.

The information comes from a European Environmental Agency report and neatly summarises 188 pages of rather dense data.

 

As you can see the UK scores extremely well along with Germany, Greece and Sweden whereas Canada, Denmark, Italy Scotland, Spain and Switzerland are well off target.

Another example of effective climate communication can be seen below. In Good Magazine Spanish designer Lamosca has given an excellent graphic that shows nations carbon increase or decrease from 2006 to 2007.

It is interesting to see that the UK has the largest decrease of 3.8%.

The government is also in on the act. Below is a map released last month by DECC (Department of Energy and Climate Change). Created in collaboration with the MET Office Hadley Centre it shows the global consequence of failing to keep global temperature rises below 2 degrees Celsius.

The full interactive version is excellent and well worth playing with. It can be found at the DECC website here.

Much of the current interest in climate change was created by the persistent use of a simple Power Point presentation (Al Gore’s famous Inconvenient Truth). If we are to continue to spread the message and understand its complexity graphics such as the ones above must become common currency in our media, schools and offices. The time has come to see the change.

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War on Waste: Green Gas and Tesco Vouchers

Posted by ericww on November 24, 2009

Its been an interesting few days for the very uninteresting topic of household waste. The Tories have announced plans to pay people in vouchers for recycling their waste and Ecotricity, a green electricity provider, has declared its intention to launch the UK’s first green gas tariff created, in part, from household waste.

The Tory scheme, announced today in a speech given by George Osborne, was pioneered in the US and has been piloted in some Tory run councils. The idea is to provide incentives for people to recycle through a points system that can then be renewed through popular high street retailers.

Ecotricity are one of the greenest suppliers of electricity in the country. They are looking to invest £50 million into two biodigestion units (green gas mills in the company’s words) and match British Gas on dual fuel pricing. The scheme will be introduced in January but initially it will run of ‘brown’ gas with the introduction of biogas coming in stages over 2010.

Waste is turned into biogas by microbes contained in tanks without oxygen that convert the matter to methane and carbon dioxide. This can be burnt to generate electricity or supplied over the national grid as gas. Recycling at its best.

Both plans provide novel ways of dealing with household waste, and considering that UK homes send roughly 22.6 million tonnes of rubbish to landfills a year, ones that are to be welcomed.

By Lawrence Buckley

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Turbine Red Tape Cut

Posted by ericww on November 20, 2009

by Lawrence Buckley

Good news for all households interested in having wind turbines or air source heat pumps for their homes. The Green Energy private members bill promoted by Peter Ainsworth, Conservative MP for East Surreyand supported universally by the Government and the main opposition front benches have received royal assent.

Bad news for those of you who’d like to do it this weekend, the legislation won’t come into force for six months.

However he basics of the bill will be welcomed by everyone interested in greening their home. The changes include:

  • Wind turbines and air source heat pumps will not be require planning permission as long as they are below a certain size and do not produce a noise of over 45 decibels for the neighbours.
  • Business, schools, hospitals and other non-domestic buildings can have microgeneration without planning permission including wind turbines up to 15 meters high.

It will also allow charging points for electric vehicles subject to size and siting considerations legal without planning permission.

This is a great step forward for making our homes more sustainable places to live. The government’s own figures suggest that up to 7 million homes could have some form of microgeneration installed by 2020, making those families and homes an important contributor to badly needed reductions in CO2 emissions.

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London Olympics – Crowd Sourcing a Solar Powered Cloud

Posted by ericww on November 18, 2009

by Lawrence Buckley

Displaying an impressive imagination and masterful grasp of Paint, the famed Massachusetts Institute of Technology plan to build a solar powered cloud above the Olympic Park as part of London’s lasting legacy from the games.

The 120 meter tall tower topped with large plastic bubbles that visitors will be able to walk around will be solar powered and take no energy from the grid. Instead it will use regenerative energy from the lifts breaks to display Olympic race results and weather information for the gathered spectators. Google, Umberto Eco and Arup are amongst its supporters with Google wanting to supply the information feeds.

One of the most interesting aspects of the cloud is its funding. The designers are asking for millions of micro donations via their website and will build the cloud according to the amount of money raised

“It’s really about people coming together to raise the Cloud,” Carlo Ratti, one of the architects behind the design from the Massachusetts Institute of Technology (MIT) told BBC News.

“We can build our Cloud with £5m or £50m. The flexibility of the structural system will allow us to tune the size of the Cloud to the level of funding that is reached.”

“Many tall towers have preceded this, but our achievement is the high degree of transparency, the minimal use of material and the vast volume created by the spheres,” said Professor Joerg Schleich, the structural engineer behind the towers and designer of the Munich Olympic Stadium.

Other finalists shortlisted in the competition set up by London Mayor Boris Johnson are thought to include the former Turner prize winner Anish Kapoor and Antony Gormley, the designer of the Angel of the North.

The results are yet to be announced but the team are determined to build the structure whether it wins or not. If you would like to be part of its sucsess you can donate via their website here.

http://www.raisethecloud.org

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More ‘great’ news for the ‘zero’ inspired householder

Posted by ericww on November 11, 2009

More ‘great’ news for Britain’s beleaguered homeowners this week – apparently, making your home energy efficient enough to meet the UK Government’s carbon emission reduction targets is likely to cost anything up to £15,000.

This latest cheery message comes from the Committee on Climate Change, and it follows the reported “40 per cent” hike in household energy bills (expected we are told in 2010) against a backdrop of a rubbish property market (with growing numbers of people experiencing negative equity) and, of course, (as if that wasn’t enough) the global recession.

We’ve not yet examined in detail the data that leads to the “£15,000” headlines, but there is potentially an equally valid and more optimistic spin on this obviously newsworthy statistic for those like us that want to dig a little deeper.

solar panelsYes, there is no escaping the need to ‘invest’ in ‘zero-ing’ your home. And let’s be clear, we absolutely have to face up to that worthwhile truth. But, once completed, there is a potential return on investment. For example, householders who invest in energy generation technology such as solar panels, wind turbines or ground heat extraction solutions, will be able to ‘sell’ surplus energy back to the National Grid thanks to a special feed-in tariff that will come into play across the UK energy utility landscape from April 2010.

Other simple and relatively cheap actions, such as using more low-energy consumption products and appliances, coupled with things like installing more insulation/super-insulation materials, can increase the pay back on this initial outlay – and reduce energy bills. Plus, in the bigger scheme of things, everyone who makes a real effort is in turn making a positive global impact, which at worst is something to smile about.

The problem is, of course, the timeline for such an investment to pay back and deliver a positive return is variable due to a number of factors and it could take several years – BUT (and this is a good ‘but’) with the property market in such a slump, there is the very real chance that homeowners will be staying put for longer.

Surely this growing mass of ‘home improvers’ rather than ‘home movers’ represents a great opportunity for Government and all of us involved in the climate change agenda? Hopefully, the aforementioned ‘watchdog’ among others is watching this space…

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Carbon ration account for all proposed by Environment Agency – Times Online

Posted by ericww on November 9, 2009

Carbon ration account for all proposed by Environment Agency – Times Online.

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We’ve signed up to 10:10… what about you?

Posted by ericww on November 7, 2009

Business-01

10:10 is an ambitious project to unite every sector of British society behind one simple idea: that by working together we can achieve a 10% cut in the UK’s carbon emissions in 2010.  Find out more at 10:10

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Solar Power When the Sun Goes Down?

Posted by ericww on November 4, 2009

November 3, 2009, 8:17 am  By Todd Woody, New York Timessolarreserve

A California company hopes to store solar power by focusing thousands of mirrors on millions of gallons of liquefied salt. An artist’s rendering of such a solar plant is shown here.

The holy grail of renewable energy is a solar power plant that continues producing electricity after the sun goes down. A Santa Monica, Calif., company called SolarReserve has taken a step toward making that a reality, filing an application with California regulators to build a 150-megawatt solar farm that will store seven hours’ worth of the sun’s energy in the form of molten salt.

Heat from the salt can be released when it’s cloudy or at night to create steam that drives an electricity-generating turbine. The Rice Solar Energy Project, to be built in the Sonoran Desert east of Palm Springs, will “generate steady and uninterrupted power during hours of peak electricity demand,” according to SolarReserve’s license application.

So-called dispatchable solar farms would in theory allow utilities to avoid spending billions of dollars building fossil fuel power plants that are fired up only a few times a year when electricity demand spikes, like on a hot day. SolarReserve is literally run by rocket scientists, many of whom formerly worked at Rocketdyne, a subsidiary of the technology giant United Technologies.

Rocketdyne developed the solar salt technology, which was proven viable at the 10-megawatt Solar Two demonstration project near Barstow, Calif., in the 1990s. United Technologies has licensed the technology to SolarReserve and will guarantee its performance — a crucial advantage for the startup when it seeks financing from skittish bankers to build the Rice solar farm. As many as 17,500 large mirrors — each one 24 feet by 28 feet — will be attached to 12-foot pedestals.

The mirrors, called heliostats, will be arrayed in a circle around a 538-foot concrete tower. Atop the tower will sit a 100-foot receiver filled with 4.4 million gallons of liquid salt. The heliostats will focus the sun on the receiver, heating the salt to 1,050 degrees Fahrenheit. The liquefied salt flows through a steam-generating system to drive the turbine and is returned to the receiver to be heated again. SolarReserve isn’t the only developer planning to tap molten salt to store solar energy. Abengoa Solar, for instance, intends to use salt storage at its 280-megawatt Solana solar trough plant outside Phoenix. That project, however, will heat tubes filled with synthetic oil to create steam and transfer some of the heat to salt-filled storage tanks. By using salt for both steam and storage, SolarReserve can generate higher-temperature steam, which will allow the Rice power plant to operate much more efficiently, according to Kevin Smith, SolarReserve’s chief executive. “Consequently, our system can capture three times the energy for the same pound of salt,” Mr. Smith wrote in an e-mail message.

“Plus they have additional ‘bolt on’ equipment, plus multiple heat transfer steps to go from oil to salt to oil and then to steam for electricity generation.” SolarReserve’s plant will be built on private land — the site of a former World War II-era Army airfield — near the desert ghost town of Rice.

The company will air-cool the power plant, avoiding controversies over water use that have dogged other solar projects. But the height of the solar tower — 653 feet when a maintenance crane is attached to the top — could generate resistance from conservationists worried about the impact of the project on desert vistas. A proposed SolarReserve power plant in Nevada ran into resistance from Air Force officials concerned that the tower would interfere with radar at a nearby military base. The company said it is negotiating with California utilities to buy the electricity generated from the Rice project and expects the solar farm to go online in October 2013, barring unforeseen delays.

 

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