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Friday, 19 January 2018 11:18

Shale gas as poor way to produce UK electricity sparks response

Shale gas is one of the least sustainable ways to produce electricity, claim The University of Manchester from their research findings, but onshore oil and gas industry’s trade body UKOOG disagree.

UNIVERSITY OF MANCHESTER CLAIMS

The major study, which the University say is the first of its kind, considered environmental, economic and social sustainability of shale gas in the UK and compared it to other electricity generating options. These were coal, nuclear, natural gas, liquefied natural gas (LNG), solar photovoltaics (PV), wind, hydro and biomass.

frack uni manc professor copyTaking into account a range of sustainability aspects and assuming that they are all equally important, the research found that shale gas overall ranks seventh out of nine electricity options. The study also found that:

• Shale gas ranks between the fourth and eighth relative to other electricity options.
• To become the most sustainable option, large improvements would be needed.
• This includes a 329-fold reduction in environmental impacts and a 16-fold increase in employment.
• An electricity mix with less rather than more shale gas is more sustainable.

The study, published in Science of The Total Environment, compared shale gas and the other electricity options against 18 sustainability indicators. Of these, 11 were environmental, three economic and four social. Examples of the indicators considered include climate change impacts, environmental pollution, costs of electricity, creation of jobs and public perceptions.

The University point out the Government believes shale gas has the potential to provide the UK with greater energy security, growth and jobs. And it is "encouraging safe and environmentally sound exploration to determine this potential".

But the researchers say their studies found that for shale gas to be considered as sustainable as the best options, such as wind and solar PV, huge improvements would be needed. This includes a 329-fold reduction in environmental impacts and 16 times higher employment in the sector.

They claim the environmental and social sustainability of shale gas would also need to improve by up to a 100 times for it to compete with domestic natural gas and imported LNG.

Prof. Adisa Azapagic, from the School of Chemical Engineering & Analytical Science, says: "Many countries are considering exploitation of shale gas but its overall sustainability is disputed. Previous studies focused mainly on environmental aspects of shale gas, largely in the US, with scant information on socio-economic aspects.

Frack uni manc building"To address this knowledge gap our research, for the first time, looks not only at the environmental impacts but the economic and social aspects of shale gas as well. This enables us to evaluate its overall sustainability rather than focusing on single issues, such as water pollution, traffic and noise, which have dominated the debate on shale gas so far."

Whilst the current Government and industry are keen to develop shale gas, Scotland has banned fracking and in the rest of the UK there is strong opposition. This comes from numerous stakeholders, including non-governmental organisations (NGOs), local residents and activists across the country.

The impacts on the environment from fracking are the main argument against the exploitation of shale gas. But its supporters highlight improved national energy security and economic development as key benefits.

Prof. Azapagic, Professor of Sustainable Chemical Engineering, added: "The results of this study clearly show that, assuming equal importance of the environmental, economic and social aspects, shale gas ranks seventh out of the nine electricity options, which means most other options for electricity generation are more sustainable.

"The results also suggest that any future electricity mix would be more sustainable with a lower rather than a higher share of shale gas."

The research team say these results can now help inform UK policy makers, industry, NGOs and consumers. They will also be of interest to other countries considering exploitation of shale gas.

UKOOG response to University of Manchester report on sustainable energy

frack manc uni UKOOGKen Cronin, Chief Executive of UK Onshore Oil and Gas, said: "The option of producing gas here with high environmental standards, compared to transporting gas halfway around the world from countries with lower environmental standards, has obvious environmental and economic benefits. When considering environmental aspects alone, the report shows that shale gas is more sustainable than solar. And published Environment Agency statistics show that onshore oil and gas is one of the best performing sectors in the UK when it comes to environmental performance.

This report has a number of serious flaws. Firstly, it concentrates on electricity and ignores the 21 million homes that use gas for heating and the 500,000 jobs that are sustained using gas as a feedstock. Second, it assumes that electricity from LNG will cost less than shale gas, which is at odds with how the UK's gas market works and shows a lack of understanding on the part of the authors. Third, it provides no data on the additional network and intermittency costs of options such as wind and solar. And fourth, the report does not provide its underlying economic assumptions, which we will only be able to determine once we have started exploring what is under our feet."