Monthly Archives: April 2014

National Trust switches on hydroelectric turbine in Snowdonia

A hydroelectric turbine in Snowdonia, Wales, will begin generating power on Wednesday in the National Trust’s first large-scale renewable energy project.


National Trust switches on hydroelectric turbine in Snowdonia

The National Trust’s Snowdonia hydro scheme is expected to generate 1,900 MWh per year

Patrick Begg, rural enterprises director at the National Trust, said the hydro schemewould ensure a sustainable future for the property, which was bought for the nation with a campaign spearheaded by Sir Anthony Hopkins in 1998.

“We’re lucky to be blessed with an abundance of natural resources that we look after for the benefit of the nation,” he said. “Now with this new trading company we can harness some of the power generated by nature to help fund our conservation work.

“However, the real prize for us as the UK’s largest conservation charity is that we are helping to protect special places forever by creating sustainable energy solutions that work in complete harmony with our natural and historic heritage.”

As a charity, the trust is unable to sell excess power, so has set up a trading company to sell electricity to invest in conservation work such as footpath repairs and habitat management.

The trust says turbine is expected to generate 1,900 megawatt hours per year – enough electricity to power around 445 homes and more than the amount needed to light all of its properties in Wales, which includes eight mansions, three castles and 45 holiday cottages.

But critics say any improvement in its own energy performance are outweighed by the trust’s continued and heavily criticised opposition to wind farms.

A spokeswoman for RenewableUK, the trade association for wind, wave power and tidal power industries, said: “It’s great to see the National Trust’s commitment to developing their renewable energy portfolio – and that they’re profiting from it too. To achieve the decarbonisation we need to clean up our energy system, it’s essential that the amount of low carbon electricity we generate increases, so we hope to see the National Trust taking an equally pragmatic approach to the development of other large-scale renewable energy projects as well.”

The trust already has more than 250 small and medium-scale renewable energy schemes at properties across England and Wales, including biomass boilers for heating castles and solar panels on stately homes.

Last year it launched a £3.5 million plan with Good Energy to provide clean energy to 43 historic properties, beginning with five pilot projects involving a marine source heat pump, two biomass boilers and two hydropower turbines.

It is hoped the scheme will help the charity to reduce energy use by 20 per cent, generate half its energy from renewables sources by 2020 and halve fossil fuel use in the same period. This would save the charity £4 million a year in energy costs that could be released for conservation work.

The trust says its policy is to “consider opportunities to install renewable technology where it is appropriate and in the right location and scale for the landscape”.

Last year the trust was reported to be fighting against 25 wind farm proposals that it said threatened stately homes and unspoilt landscape.

A spokeswoman said the latest planning records showed the trust was currently objecting to 10 wind developments. “This is largely due to the number, scale and location of the turbines in respect of the landscape. There are further live wind applications that we are commenting on, but we are not currently objecting to these.”

Last October the Times published a front-page story saying the National Trust had an “open mind” about fracking – but would not allow wind farms. But the chair, Dame Helen Ghosh, later said the headlines were misleading and the quotes selective.

Responding to a blogpost by George Monbiot asking her to clarify her position, she wrote: “We believe wind has a place in the clean energy portfolio but the ‘kit’ needs to work with the landscape – and it’s our job to look after some very beautiful ones.

“We do have some small-scale wind on our land, and we don’t always oppose wind farms, particularly if they meet the agreed environmental guidelines. But it’s not for the trust to be the national planning authority for exactly where every renewable development goes.”


Green Turbine has an updated website

Green Turbine has updated their website on several topics.
Do you want to know what people in your industry are saying about our turbines? Read some of our client testimonials to find out who is benefiting from our products.

Furthermore, Green Turbine has added some more information about partners and projects. We hope that these projects and inspire others to work and develop with Green Turbine technology!

Green Turbine develops micro steam turbines in the range of 1.2-15 kW. Currently, the Green Turbine 1.2 kW  version is available for sale (due to further development this version actually generates 1.4 kW) and a 15 kW version is under development.

1.2 kW turbine
Green Turbine 1.2 kW

The Importance of Aircraft Emission in Climate Change

While air travel today accounts for just three percent of worldwide greenhouse gas emissions, the carbon dioxide (CO2) and other pollutants that come out of jet exhaust contribute disproportionately to increasing surface temperatures below because the warming effect is amplified in the upper atmosphere.

The Intergovernmental Panel on Climate Change (IPCC), a scientific intergovernmental body set up by the United Nations (UN) to provide comprehensive scientific assessments of the risk of human-induced climate change, reports that CO2 emitted by jets can survive in the atmosphere for upwards of 100 years, and that its combination with other gas and particulate emissions could have double or four times the warming effect as CO2 emissions alone.Modern jet engines are not that different from automobile engines—both involve internal combustion and burn fossil fuels. But instead of gasoline or diesel, jet fuel is primarily kerosene, a common home heating fuel used around the world. Just like car engines, jets emit CO2, nitrogen oxides, sulfur oxides and soot.

Beyond their contributions to global warming, airplane emissions can also lead to the formation of acid rain and smog, as well as visibility impairment and crop damage down on the ground. The U.S. Environmental Protection Agency (EPA) reports that aircraft engines contribute about one percent of total U.S. mobile source nitrogen oxide emissions and up to four percent around airports in some areas.


What worries environmentalists is the fact that the number of airline flights is on the rise and is expected to skyrocket by mid-century, meaning that if we don’t get a handle on airplane emissions, our other carbon footprint reduction efforts could be for naught. The U.S. Federal Aviation Administration (FAA) reports that commercial flights grew nine percent from 2002 to 2010 and will rise another 34 percent by 2020.

Jet emissions standards are based on guidelines established under the U.S. Clean Air Act and are set by the International Civil Aviation Organization (ICAO). Current standards were created in 1996 and updated in 2006, but environmental leaders want even stricter limits on greenhouse gas and other emissions.