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Centre for Alternative Technology

Radical action is needed if we are to avoid dangerous climate breakdown. CAT offers practical solutions and hands-on learning to help create a zero carbon world.

New courses at CAT Graduate School for 2019

MSc Green Building*, MSc Sustainable Ecology* & MSc Sustainability and Behaviour Change*

Free winter entry at CAT's Visitor Centre!

Ends Monday 25th March 2019

Urgent Appeal

Help CAT turn climate change awareness into action

Visit CAT

There’s so much to see and do at CAT, with hands-on learning for all ages. Visit us to explore all aspects of green living.

What's on

Open Day: MSc and MArch Courses

Graduate School open days offer an authentic flavour of what it’s like to learn on our postgraduate sustainability courses. Friday 15th February 2019 @ CAT Informative and inspiring, the day…

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Build a Tiny House

Gain the practical experience and key skills to build a tiny house all of your own Whether you’re planning to build your own home or just want to pick up…

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Introduction to Permaculture

Permaculture Design Course (part 1). Learn how to design resilient, abundant human habitats by working collaboratively with nature and with each other. This course is run at CAT by Aberystwyth…

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Graduate School of the Environment

Gain the knowledge and skills to help address environmental change. CAT’s postgraduate courses are respected across the world, providing a big-picture, integrated approach to sustainability.

Zero Carbon Britain

To tackle climate change, all emissions that can go to zero must go to zero – as rapidly as possible. CAT’s Zero Carbon Britain research shows how this can be done using technology available today.

Educational Trips

Bring your school, college or educational group to CAT and start exploring positive solutions to environmental challenges.
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Short Courses

Gain practical skills and hands-on experience with one of our day, weekend or week-long sustainability courses.
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Latest from the CAT Blog

Place and passion

Fernando García Vicario on his journey from CAT volunteer to MSc student. CAT’s international reputation brought me all the way to Mid Wales from my home country of Spain. I was…

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Climate emergency! Local authorities pledge to act

As CAT’s home town and home county declare climate emergencies, Paul Allen looks at the groundswell of action from towns, cities, counties and regions determined to take action to tackle greenhouse gas emissions.…

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Build a natural house at Build It Live

Join us in Manchester at Build It Live North West on 23-24 February as we demonstrate building a natural house in the ‘Centre for Alternative Technology Demo Zone’. Building demonstrations will be…

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Free Information Service

Wondering what you can do in your own home to help combat climate change? CAT’s free information service offers independent and impartial advice on a wide range of areas to help you live more sustainably.

Solar Photovoltaic (PV)

Solar Photovoltaic (PV)

Generate electricity from the sun. Photovoltaic (PV) solar panels convert sunlight into electricity. You can use the electricity to power domestic appliances, and export excess energy to the grid. This…

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Natural and low impact building materials

Natural and low impact building materials

Our page on low energy buildings talks about the ’embodied energy’ of building materials. This is the energy that was used in extraction, manufacture, and transportion. Another way of assessing…

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Energy saving at home

Energy saving at home

From the very earliest days of CAT we have focused on building and renovating to high levels of insulation, so that we consume less energy. Reducing our energy demand makes…

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