Sunday 28 June 2009

Smart meters 'dumb idea'

Smart meters are a mad idea when better power savings could be achieved using the existing "ripple control" for hot water heating, according to power industry consultant Bryan Leyland.

"Everything that could be done with smart metering can be done more effectively and much, much cheaper by taking full advantage of existing ripple-control system," Mr Leyland said.

Putting in smart meters would cost many millions of dollars and would be less effective than ripple control.

Customers would ultimately pay for smart meters, which can cost hundreds of dollars each.

"In the end the consumer always pays [for that]," Mr Leyland said.

But the potential power savings would probably be small because it would rely on people for example doing their washing at 2am to save "20 cents" on a load, he said.

Ripple control allows power companies to send a pulse down the line and turn off storage hot water heaters, which would be a much better way of reducing power use at times of peak demand.

Ripple control can be used to turn off water heating over whole suburbs.

As demand rises, more expensive power stations come into the system to provide electricity, adding tens or hundreds of millions to the cost of power over a year, Mr Leyland said.

"We have been the best in the world in demand-side management," he said. "We invented it."

These days power companies seemed scared to use ripple control, Mr Leyland said, even when they had the right to turn all domestic power off, for example if the Cook Strait cable failed.
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Magic Boiler Scheme

The Magic Boiler Scheme offers, high efficiency, 'A' rated gas and oil boilers and heating controls at discounted prices. The boilers have to be purchased from a Plumbing Trades Supplies (PTS) Group store and installed by CORGI (Gas) or OFTEC (Oil) registered installers. There may also be cash back which is subject to funding. Please note that this scheme is only available in certain areas of the UK.

Contact details:
For more information about the availability of the scheme in your area contact your local Energy Saving Trust energy efficiency advice centre on 0800 512 012.
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Britain's green shame

Jonathon Porritt steps down from Blair's sustainability commission with UK still second-worst greenhouse gas emitter in Europe
When it comes to environmental sustainability, the prognosis is grim: Britain is "winning battles, but still losing the war".

The UK is failing to hit a raft of key targets on sustainable living, according to a new report to be published this week. In its critical analysis, released on Wednesday, the Sustainable Development Commission (SDC) warns that progress on a number of green targets has been "undermined by stasis or even reversion". Jonathon Porritt, outgoing SDC chair and one-time "green guru" to Tony Blair, claims sustainability plays second fiddle to the drive for consumption-driven economic growth. "The thing that stands out is the very limited progress we've made on reducing inequity in our society... it's a startling indictment of this Government that more people will be living in fuel poverty at the time of next election than were living in fuel poverty in 1997," he said.
Britain remains well behind most European countries on supplying renewable energy, which accounts for less than 2 per cent of overall energy consumption, according to the report, which also predicts the proportion of energy produced by renewables in 2020 will be just 5 per cent – far short of the EU target of 20 per cent. And while recycling is on the increase, there is a long way to go to meet the 40 per cent target by 2010, with the UK heavily reliant on landfill, says the report.
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Friday 26 June 2009

Round-the-world solar plane


Swiss adventurer Bertrand Piccard has unveiled a prototype of the solar-powered plane he hopes eventually to fly around the world.

The vehicle, spanning 61m but weighing just 1,500kg, will undergo trials to prove it can fly through the night.

Dr Piccard, who made history in 1999 by circling the globe non-stop in a balloon, says he wants to demonstrate the potential of renewable energies.

The final version of the plane will try first to cross the Atlantic in 2012.

It will be a risky endeavour. Only now is solar and battery technology becoming mature enough to sustain flight through the night - and then only in unmanned planes.

But Dr Piccard's Solar Impulse team has invested tremendous energy - and no little money - in trying to find what they believe is a breakthrough design.

"I love this type of vision where you set the goal and then you try to find a way to reach it, because this is challenging," he told BBC News.
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