Rock reboot and the Welsh windy wonder: Centre for Alternative Technology

Biomass and the pit

Geek's Guide to Britain There are plenty of tourist attractions scattered around the coast of Cardigan Bay in Wales. But for the last four decades, the Centre for Alternative Technology (CAT) has provided something appropriately... alternative. There is an early sign of this in the car park – a huge wind turbine blade, placed as if to diminish the fossil-fuel powered vehicles alongside it.

The centre itself is at the top of a steep slope, on what was once the waste pile for a nearby slate quarry. Visitors have a choice of renewable energy transport options: drive your electric car to the free recharging point at the top; catch a funicular cliff railway powered by water; or take a stiff walk up the Garden Steps.

I opt for the railway, which as it travels up a 34 degree slope provides fine views across to Tarren-y-Gesail, one of Snowdonia’s mountains.

Emerging from the wooden building at the top of the railway, there is a scenic lake, which provides the water to power the railway – the car at the top gets a full tank, the car at the bottom has its emptied and gravity does the rest – along with gardens and a few buildings. It looks quite bucolic.

Founded 40 years ago by environmentalist Gerard Morgan-Grenville, CAT has a mission based on science and engineering: to teach visitors about renewable technologies such as wind, solar and hydro-electric power, as well as efficient use of other resources such as water.

Spread out across seven acres, it does so through exhibits, installations on different power sources and by offering the public the opportunity to study through a range of courses with everything from free water efficiency days for plumbers to a Masters Degree in renewable energy.

The centre isn’t just about teaching, but also very much about experimenting and putting things into practice – learning along the way as well as demonstrating to the public what’s possible.

To that end, you’ll find the centre’s eco house and organic garden, composting and soil experiment, and alternative building construction methods. Some activities, such as that garden and those soil projects, were drive by the fact CAT was scratched from the barren and rocky wastes of a slate quarry some four decades back.

There is a suggested route visitors can take around the centre, although it’s also easy just to wander around. Taking the route, one of the first stops is the Whole Home, an energy-efficient house with lots of advice – some of it surprising, such as the fact that gas ovens produce lower carbon emissions than those using electricity (because of power loss through the national grid).

The house also includes a biomass room, featuring modern wood-burning stoves. One is trickle-fed by wooden pellets, the other burns logs in batches and stores heat in a tank, with both used for central heating.

CAT wind turbine blade, photo SA Mathieson

Welcome to Wales: a dismembered wind turbine welcomes you in CAT's carpark

Things get more fun further up the path with the Mole Hole for children, a dark tunnel featuring giant models of underground creatures. While this has messages about biodiversity and organic soil, it is also gives kids the chance to squeal at models of creepy-crawlies.

The tunnel leads out into a polytunnel organic garden which is warmed by ground heat and therefore doesn’t need electrical heaters. There is also an adventure playground nearby.

Further on, a barn by a courtyard has its southern-facing roof covered with 20kW-worth of solar panels; this was a large installation when the centre put it in a few years ago, but similar ones are now commonplace. This one is particularly pretty, as it uses semi-transparent integrated photo-voltaic panels that let a lattice of sunlight through.

Similar topics

Other stories you might like

  • Google sours on legacy G Suite freeloaders, demands fee or flee

    Free incarnation of online app package, which became Workplace, is going away

    Google has served eviction notices to its legacy G Suite squatters: the free service will no longer be available in four months and existing users can either pay for a Google Workspace subscription or export their data and take their not particularly valuable businesses elsewhere.

    "If you have the G Suite legacy free edition, you need to upgrade to a paid Google Workspace subscription to keep your services," the company said in a recently revised support document. "The G Suite legacy free edition will no longer be available starting May 1, 2022."

    Continue reading
  • SpaceX Starlink sat streaks now present in nearly a fifth of all astronomical images snapped by Caltech telescope

    Annoying, maybe – but totally ruining this science, maybe not

    SpaceX’s Starlink satellites appear in about a fifth of all images snapped by the Zwicky Transient Facility (ZTF), a camera attached to the Samuel Oschin Telescope in California, which is used by astronomers to study supernovae, gamma ray bursts, asteroids, and suchlike.

    A study led by Przemek Mróz, a former postdoctoral scholar at the California Institute of Technology (Caltech) and now a researcher at the University of Warsaw in Poland, analysed the current and future effects of Starlink satellites on the ZTF. The telescope and camera are housed at the Palomar Observatory, which is operated by Caltech.

    The team of astronomers found 5,301 streaks leftover from the moving satellites in images taken by the instrument between November 2019 and September 2021, according to their paper on the subject, published in the Astrophysical Journal Letters this week.

    Continue reading
  • AI tool finds hundreds of genes related to human motor neuron disease

    Breakthrough could lead to development of drugs to target illness

    A machine-learning algorithm has helped scientists find 690 human genes associated with a higher risk of developing motor neuron disease, according to research published in Cell this week.

    Neuronal cells in the central nervous system and brain break down and die in people with motor neuron disease, like amyotrophic lateral sclerosis (ALS) more commonly known as Lou Gehrig's disease, named after the baseball player who developed it. They lose control over their bodies, and as the disease progresses patients become completely paralyzed. There is currently no verified cure for ALS.

    Motor neuron disease typically affects people in old age and its causes are unknown. Johnathan Cooper-Knock, a clinical lecturer at the University of Sheffield in England and leader of Project MinE, an ambitious effort to perform whole genome sequencing of ALS, believes that understanding how genes affect cellular function could help scientists develop new drugs to treat the disease.

    Continue reading

Biting the hand that feeds IT © 1998–2022