Tag Archives: energy

How to turn a volcano into a power station – with a little help from satellites

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Erta Ale in eastern Ethiopia. mbrand85

Ethiopia tends to conjure images of sprawling dusty deserts, bustling streets in Addis Ababa or the precipitous cliffs of the Simien Mountains – possibly with a distance runner bounding along in the background. Yet the country is also one of the most volcanically active on Earth, thanks to Africa’s Great Rift Valley, which runs right through its heart.

Rifting is the geological process that rips tectonic plates apart, roughly at the speed your fingernails grow. In Ethiopia this has enabled magma to force its way to the surface, and there are over 60 known volcanoes. Many have undergone colossal eruptions in the past, leaving behind immense craters that pepper the rift floor. Some volcanoes are still active today. Visit them and you find bubbling mud ponds, hot springs and scores of steaming vents. Continue reading →

Energy Access

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Dr Sam Williamson, Lecturer, Faculty of Engineering, Bristol University

We are energy consumers. Every day we devour energy, and most of the time we don’t even realise it. Before we wake up, our boiler has heated up our water for a hot shower, and at this time of year our homes are warmed. We unplug our mobile phones, switch on the bedroom lights, and boil a kettle to make our morning tea or coffee, before we travel into work, university or school, often by car or bus, consuming energy as we go. And that’s before we think about any of the embodied energy in everything we use. We have direct access to energy through the infrastructure made available to us.

A fire and tuki (kerosene lamp) in a kitchen, Terai, southern Nepal. Photo credit:
Sam Williamson

However this isn’t the same all over the world. The International Energy Agency report in their World Energy Outlook 2016 that 35% of the world’s population still cooks on traditional biomass, with 18% having no access to electricity, and with over 80% of these people living in rural areas. Those that are connected often suffer from frequent power cuts, and have to revert back to traditional methods for lighting and power. 4.3 million people each year die from illnesses attributed to indoor air pollution using traditional fuels for cooking, heating and lighting (World Health Organisation, 2016). Along with the health implications, exposed flames can cause fires in basic housing, and burning of fuel wood and charcoal leads to extensive deforestation causing soil erosion and land degradation. Continue reading →

Power, policy and piranhas: Martin Bigg on energy

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Professor Martin Bigg, Professor of Environmental Technology Innovation

When it comes to energy solutions, we need to be like Martin Bigg’s favourite fish; the piranha. Why do we need to be like a flesh-eating aquatic animal to get these solutions? Because being passive isn’t working.

Such was the closing message of Bigg’s talk at the Bristol Politics Café in the kitchen of The Station. Bigg’s talk entitled ‘Energy generation, use and denial’ was a well-integrated combination of academic analysis and challenging chit-chat about the UK’s energy enigmas.

While his concluding remark was engineered to influence our future actions, Bigg cleverly began with the UK’s energy past. He walked us through the history of UK energy supply, intertwining the physical processes of production with the bureaucracy and politics.
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