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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.

CAT is currently closed to visitors. Click here to read our latest COVID-19 updates

Winterwatch at CAT

Get ready for two fantastic weeks of Mid Wales wildlife as Iolo Williams and BBC Winterwatch return to CAT.

CAT at Home

Explore sustainable solutions from your home or garden with a range of online resources from CAT.

Webinars and online events

Gain practical tips and explore sustainability with CAT. Includes a new series of free webinars.

CAT at Home

Explore sustainable solutions from your home or garden with online resources from CAT.

Whether you’re keen to use your time at home to learn more about solutions to the climate and biodiversity emergency or are looking for fun wildlife activities to keep the kids connected to nature, we’ve got lots of online resources to help.

What's on

Join the Graduate School of the Environment’s Head of School, Adrian Watson, Ecology and Food Programme Leader, Jane Fisher for an introduction to CAT, an overview of our postgraduate courses…

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Online Zero Carbon Britain course exploring climate solutions – the science says we must, the technology says we can, time to say we will! Working with a range of local…

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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.

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Your support will help us share our climate change solutions with hundreds of thousands of people every year.
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Eco store

Love the environment and connect with nature with our latest collection.
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Latest from the CAT Blog

We are delighted to announce that the Centre for Alternative Technology (CAT) will be welcoming Iolo Williams and the BBC team back to our Mid Wales eco centre later this…

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How can we make our own homes and buildings as wildlife-friendly as possible? Gwyn Stacey looks at what we can do as householders and at the role the building and…

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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.

Photovoltaic (PV) Solar Panels

Photovoltaic (PV) Solar Panels

The price of Photovoltaic (PV) solar panels has dropped rapidly in the last ten years. A domestic PV array can now be cost effective without any subsidy. You can sell…

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Natural building materials

Natural building materials

At CAT we’ve been using natural building materials for many years, and you can see examples all around our visitor centre. We also run hands-on courses and workshops and sell…

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Energy saving at home

Energy saving at home

Domestic energy saving measures are vital if we are to achieve the goal of a zero carbon future. Reducing the UK’s energy demand will make it much easier to meet…

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