Category Archives: energy solutions

A Cruise up the Yangtze River – The Three Gorges Dam

Exhausted by the long train journey from Shanghai to Yichang, we barely registered our late arrival on board the river cruiser ‘President Number Six’, except to note with relief that we had our promised balcony. We awoke to the 6.30am cheery morning call, swiftly learning the volume function of the mysterious dials under the mirror!

Another ship was moored parallel to ours – you could practically step across to their balconies, so it’s a good idea to close the outside doors if you’re on a shore excursion – but it glided off before we’d made our first coffees, revealing a stunning vista of white cliffs and dark forest. After the hectic pace of the city tour, the peaceful riverbank scenery was delightful.

The first morning on the Yangtze river, another Resilience Handbook adventure

Far from being pestered to join in the optional excursions (priced at around 290 yuan, about £30 at the exchange rate then), we weren’t even allowed on the first one, there being no English speaking guide available. We’d already planned to try and avoid this trip, hoping that it wasn’t part of a compulsory package. Although a visit to the home town of Qu Yuan, a famous poet from the Warring States period, was tempting, we knew we’d need some rest before tackling the Three Gorges Dam inclusive excursion later.

Heading for the 3 Gorges Dam up the Yangtze river, the project supplies clean electricity and protects from floods, as outlined on a smaller scale in the Resilience Handbook

We were content to explore the ship and admire the view. The weather was still mild enough to enjoy sitting out on the deck, or sketching on the balcony; we began to move upriver. Our ship glided smoothly through the calm waters past ever changing views, through everyone’s stories, towards the Dam.

A shipyard on the Yangtze river; adventures broaden the mind and increase resilience, as outlined in the Resilience Handbook

Resilience Handbook author Elizabeth J Walker explores the Yangtze river

We discovered the ships always moored in parallel. Landing parties had to walk along internal gang planks through other cruise ships and over the bare decks of commercial barges before finally reaching shore.

Our group was promptly assailed by husslers, politely but insistently offering us T-shirts and maps of China. This, we learned from our guides, was the ‘maybe later’ market. The prospective vendors seemed to have some invisible boundary, and they were never a real pest. Their goods weren’t too bad either; I actually bought one of the maps, though I probably paid too much for it. Apparently you have to watch out for counterfeit money in change though.

A tour bus took us up the winding road to the Visitor Centre, thronged with Chinese tourists. We were introduced to the 3D model of the dam complex, touched briefly on souvenir shops, then ascended to the summit up four long outdoor escalators. We were lucky with weather ourselves, but an umbrella could be a handy item to bring.

escalator view 3GD

 

summit 3GD

The summit plaza itself was decorated with significant statues, murals depicting drowned cultures, and information boards. Stairs led to the viewpoint at the very top – for, of course, the view was the main attraction.

view of locks 3GD

 

Building this steel/concrete gravity dam, long planned, was finally started in 1994 and completed in 2012. The ship locks and lift were finished later; our vessel was too large to go up in the incredible ship lift itself. The dam is 1.2 kilometres across and creates a reservoir 600 kilometres long, reaching all the way to Chongqing. Its output is 22.5 megawatts; half the average UK power demand.

view of 3G dam

The landscape of the entire river was altered by this project, and over a million people had to be relocated. Many scenic features were covered by the 90 metre rise in water levels. Silt builds up in the reservoir instead of being washed downstream to fertilise the soils. Some endangered species, such as the Siberian crane and Yangtze sturgeon, may not survive the changes.

lock and earthworks view 3GD
The ship locks are in the foreground

However, having experienced the pollution caused by the coal fired power stations elsewhere, the clean air of the Three Gorges, where white mists replaced brown smogs, was a powerful argument in favour of hydropower. With the deeper channels, goods can be carried by ship instead of fleets of diesel lorries. Floods no longer threaten the densely populated Yangtze basin and the coastal towns.

These could be devastating. In 1998, over three thousand were killed and 15 million homes destroyed. In 1954, the floodwaters covered the entire city of Wuhan for three months; over thirty thousand people died and 18 million were displaced. The catastrophic flooding of Nanjing in 1931 claimed at least two million lives.

no thunderstorms on the summit
Great advances have been made in weather control!

The way back down was a gentler stroll down flights of stairs and through parkland, bringing us out into a charming market full of affordable souvenir trinkets. We hastened through this, back on the bus, ran the gauntlet of the map sellers and were welcomed back on board the ship with hot flannels and tea.

The ship moved off soon after we returned; there was an indefinable air of tense excitement among the crew. By the end of dinner, we were in a holding position in front of the huge lock gates; the rain considerately stopped while we waited on the deck.

I thought we’d just move to the front of the queue but, in an amazing feat of pilotage, all three large ships entered the lock together. The great doors clanged shut, and the water began to run in.

lock gates open

 

We rose surprisingly fast – ‘up’ is not a direction usually associated with ships! In less than twenty minutes, we’d emerged from our concrete chasm and could gaze out over the landscaped working areas.

waiting in the lock

 

The second lock swung open and we moved through in a tight group. It took about two hours before we emerged from the fifth lock onto a broad, placid lake. The sharp line of the dam, crested by illuminated machines, retreated into the night, and we were on our way to the Interior!

 

RSD don’t do relaxing normally, but here they were in the hands of the cruise ship agenda. So there wasn’t much advance information about the shore excursions available, some of which are included in the price, but a little research shows these are usually much the same for all the cruises, differing slightly whether you are going upriver – as we were – or down.

It was a relief to find that our cabin – like most places we stayed – had a kettle. Remember to use bottled water for hot drinks. There is often more tea supplied than coffee, so if you prefer the latter, bring some extra sachets with you.

You can visit the Dam from Yichang; it’s about a 90 minute drive. It may be possible to book an excursion which takes you up the ship lift.

Next week – The White Emperor’s City

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March Diary 2017

The weather during the first part of the month was lovely and warm here in Somerset. Just as everyone got ready to sow the spring seeds, the very weekend a whole lot of lovely outdoor events were planned….an icy wind sprang up and plunged us back into winter!

The Red Brick Building Garden Club still managed to make a few raised beds at their Friday workshop. These are constructed from dismantled pallets, and only take a couple of hours to make once you’ve had a bit of practice.

raised garden bed made of pallets

raised bed with base

 

They were on display for the Seedy Sunday event on the 19th, along with a biochar stove, advice on mushroom cultivation and the main event in the hall.

Every year, there’s a seed swap day in Glastonbury, in time for planting season.  It began in a small church hall at the obscure end of the High Street.  Gardeners, sorting through their seed boxes, would bring along the ones they really weren’t going to get round to planting. They’d add them to the pile on the table, and have a look for anything interesting brought by other people.

There was tea and home made goodies, of course.  You could sample exotics such as beetroot or parsnip cake, or stick to the traditional lemon drizzle. People sold gardening books, sapling fruit trees, craft items, tools, Resilience Handbooks….the event had to move to a larger venue!

I took some pictures of the biochar stove, which was being used to cook snacks while creating charcoal. A slightly different design can use this principle to generate methane gas for fuel. I’m having problems uploading images to WordPress though, you could check out my page on Facebook  ‘Elizabeth J Walker’ instead!

Green Wedmore held an Energy Advice Day in the yard of the George Inn on the Saturday; although only a few braved the icy cold to investigate, it was a great networking opportunity.  Mark and Liz came down from the Centre for Sustainable Energy in Bristol, with a display of in-depth advice leaflets and some very interesting gadgets.

I was quite glad I hadn’t been able to book onto the free willow fence making course run by Glastonbury Abbey – it was nice not to be outside all day! The demonstration at the garden event showed me all I needed to know about getting started – maybe I can upload the pictures sometime 😦

Meanwhile, I’m digging over the allotment after work most days.  We’ve been given another patch to look after and it’s pretty wild.  I’m turning over the soil, pulling out the main weed roots and binning them. Then, using the great heap of leaf mould which someone – the Council, I suppose – left in the car park, covering the dug ground with a thick mulch.

A local fast food store generates more cardboard than its bins hold; we’ll cover the lot with sheets of card, weighed down with bits of brick and a couple of tyres.  The first cleared patch is destined for potatoes, planted through holes in the card.  Strawberries next – the wild strawberries in my garden are lovely, but I’d like enough to make wine from!

Will the birds eat them instead?  Will rabbits get our carrots? Is it worth locking the shed when the most valuable bit of it is the door? An allotment presents a whole new set of challenges to resilience gardening!

Join the adventure – choose a task from the Resilience Handbook and see where it takes you!

Some tips to reduce mould in your house

In the interests of networking, an important part of resilience, I keep in touch with Green Wedmore. This is an active and effective community group out on the Levels. When I discovered they were involved with a plan to conduct an energy survey of the area, I was keen to join in. I’d qualified as an energy assessor some years ago, but the project which sponsored me fell through before I got any practical experience.

Last Saturday, we had an Energy Essentials Training day, presented by the lovely Lisa Evans of the Centre for Sustainable Energy in Bristol. Although I found a lot of the material familiar, it reminded me how important this information is to people.

Cold and damp are bad enough, but it’s the resulting mould that’s really unpleasant. It looks awful, stains clothes and ruins furniture. The spores of black mould can cause health problems; even touching it can provoke an allergic reaction.

Sometimes it’s not enough to wrap up warm. My daughter and her friends, in their new basement flat by the river, were faced with electric storage heaters. Not certain how they worked, and alarmed at the cost, they didn’t use them. Well insulated, the flat wasn’t particularly cold, but by December their walls and furniture were covered in mould!

black mould

You can search online for instructions if your new home has an unfamiliar heating system. If you’ve got a problem with damp, here’s a few tips…

If you have an empty room which you’re not heating, keep the door closed. Steam from the bathroom and kitchen doesn’t stay there, but wanders through the house looking for a cold surface to condense on. Move the furniture away from outside walls, and check behind it regularly. Narrow gaps and poor air circulation encourage mould; open the windows on sunny winter days.

After a shower, close the bathroom door and open a window, if you have one; let the water vapour escape. Otherwise, use extractor fans. They’re usually under 30 watts, so cheap to run. Make sure your tumble drier is vented to the outside.

Do you have a loft? If you go into the roof space, having found out about safety precautions first, there’s often a gap where the end of the roof meets the floor. Sometimes you can even see daylight through it. This gap is crucial to the overall ventilation of many houses. If it’s blocked by insulating material, you may get a problem with damp.

There’s lots more useful advice on the internet. Don’t just live with a dangerous condition like damp; do some research and find out what you can do about it!

People used to interact with their homes far more than many do today. Learn about yours – where does the power comes from, where does the water go? What’s your score in the Housing section of the Resilience Handbook? Which action should you do next?

Remember the free assessment PDF can be found at the end of the Learning Resilience page on this site.

An Interesting Meeting

I attended an Avalon Community Energy meeting on Monday. We were admiring the new solar panels they’d arranged to be installed at a local school. Despite the continual obstacles thrown in the path of this worthy project by central government, everyone was civil to the visiting MP.

He made a short speech, indicating more sympathy for renewables than we were accustomed to hear. He regretted that taxpayers’ money had to be spent along lines informed by good business practice; later he deplored the competitiveness between various renewables providers. If business models could run a country, politics would never have happened in the first place.

The he said something really startling. We were moving away from centralised power distribution, he said. We could be building the last generation of large power stations.

Moving towards local control of the power supply is a key pillar of resilience. As control cannot be achieved without generation, renewables represent the only way forward for resilient communities. Sourcing energy in this way also leads to a more distributed network with fantastic resilience. Emergency heating, lighting and cooking facilities could be maintained in every household! Large scale power cuts would be a thing of the past.

Moving away from centralised power generation wasn’t anywhere near the top of my ‘Realistic Things to Achieve’ list. It was just a vague pipe dream, an ‘if only people would realise the importance’ idea, facing decades of struggle even to get on the agenda!

Energy groups such as ACE need to move in from the pioneer fringes and occupy the centre ground for communities to take advantage of this unexpected trend. To seize opportunity, an organised group has to be in place, poised and ready, with a sound business plan backed by an informed community. Is there such a group in your area? If not, why not?

Take back your power.

waterwheel-1

The Resilience Handbook outlines how you can form a community group in your area. More information can be found through the links on this page.

It can be a very slow process, getting a community to work together. Encourage yourself with a resilience plan; find out more in the Handbook

Resilience in Iceland

My trip to Iceland was a journey through the island’s past. I was well acquainted with the Sagas, set in the period just after Settlement, from about 900 to 1050 AD, which described a prosperous landscape. I knew that deforestation quickly became a problem and Icelanders avoided the fate of their relatives in Greenland by a very small margin.*

One of my first stops was the Settlement Exhibition in Reykjavik. This museum has been built over an excavated longhouse from the Saga days. Its inhabitants enjoyed Iron Age luxury in their spacious ‘hvoll’ surrounded by natural abundance.

Following the prosperity of the early days came the Little Ice Age which began in the 1300s and lasted nearly six centuries. The trees cut for firewood, building and smelting iron didn’t grow back. The topsoil was lost and barley cultivation ceased. The fjords filled with ice; the fishing boats rotted on the strand with no wood for repairs.

There wasn’t even enough firewood to boil seawater for salt, essential for preserving food through the long winters. Luckily cows were able to survive, presumably living on seaweed and lichens like the people, and there was plenty of whey left over from butter making. The Icelanders expanded traditional techniques of preserving meat in lactic acid.

There was no clay for making pots, no iron to repair pans. People used the volcanic springs to steam food wrapped in cloth, dug pits in hot sand. Icelandic cuisine became desperately inventive.

The climate change was compounded by hostile political conditions and by the Black Death in 1402. The population fell from 60,000 to 20,000. Then there was the Skaftáreldar eruption in 1783, which poisoned large areas of grassland.

As Europe began to prosper again, there was a market for the fine woollen goods from Iceland – the sheep had survived too, and just as well as there were no fibre crops for cloth or ropes. Finally permitted to prosper from their own trade, the Icelanders invested in boats. Their fishing fleet was revived; technology trickled in from the Industrial Revolution.

Then electricity was invented! Icelanders swiftly caught on to the potential of renewable and volcanic energies. Huge greenhouses now provide all the vegetables they need for domestic consumption, and extensive reforestation is progressing. Recycling is taken seriously. So is trashing the countryside with off road vehicles.

You’ll find a great respect for the land among Icelanders. It nearly killed them. If you visit this paragon of resilience, don’t pretend you know what you’re doing. Hire locals to show you around, especially in winter!

 

*There’s a poignant description of the fate of one group of Greenland Vikings in ‘Collapse’ by Jared Diamond.  This is one of the recommended books in the Resilience Handbook…reading is a good activity in the winter!

There’s still time to order a signed copy of the Resilience Handbook before Xmas – email me after you’ve placed your order if you want it signed to another name!

October Diary 2016

It’s about time for another diary post, since it’s been a busy week here in Somerset.

Thursday was the Community Food Forum, an annual event organised by Feed Avalon. Around forty people gathered this year – its third – to network and exchange ideas. It was great to see projects like Plotgate, a community supported agriculture venture near Barton St David, developing from their initial fund raising to a successful business!

There seems to be a steady increase of interest in growing food, with new sectors engaging every year. This time there were people who work with mental health, where its therapeutic benefits are being recognised.

Saturday saw the Glastonbury Town Council hold a public consultation on possible uses for a splendid old building they have just acquired for the community. It would be ideal for a practical crafts centre; I’d like to see that combined with an ‘eco-college’ like Dartington Hall in Devon. We could explore local materials for textiles and ceramics – Somerset having a lot of wool and clay.

edible flower baskets in Glastonbury
edible flower baskets in Glastonbury

In the evening, I went to the energy evening hosted by Green Wedmore. The purpose of the presentation and following debate was to explore future energy options for the local area. The range of these on the table was impressive. Not only solar, wind and hydropower, but also biomass from the surrounding RSPB nature reserves and anaerobic digestion using farm waste.

Vince Cable, former business secretary, gave the introduction and Pete Capener from Bath and West Community Energy provided an inspiring talk on how the renewables industry is adapting to a hostile government. I chatted to a long-serving member of the parish council, who’d recently had an impressive 16Kw array installed on the roofs of her farm buildings – using panels built in Wrexham. We snacked on excellent smoked trout vol au vents from the nearby aqua farm. The people of Wedmore intend to take quality with them into their sustainable future!

Someone had brought a particularly backward article just published in the Times. After spending much of the last forty years off grid, I view people who harp on about ‘the lights going out’ with the same astonishment as I’d view a flat-earther. Lights are easy. Washing machines, even freezers, are well within the scope of a modern personal renewables system without mains backup.

Tumble driers now, you could have a point.  It’s not such a rousing battle cry though – ‘without nuclear power, you might have to actually hang your clothes out to dry!’

Meanwhile, the smart consumer is considering the benefits of making their own electricity…..

solar power regulator

The best way to start this process is by looking at the devices you use already, and finding out how much electricity they use.  In the Energy chapter of the Resilience Handbook, task eight asks ‘can you calculate how much of your home could run on a supply of 2 kilowatts?’  This level of supply is not only possible with a personal solar array, but designed to use a small ‘suitcase’ generator as emergency backup. ( More power requires a larger, noisier generator.)

Once you know the answer to this question, you’ve got a much better idea what local energy can do for you – it’s more resilient than a centralised power supply!

For more information about food and energy resilience, read ‘The Resilience Handbook – How to survive in the 21st century’