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.

Coronavirus update: We have temporarily closed the CAT visitor centre to support the safety and wellbeing of our staff, volunteers, guests and the wider community.

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Latest Zero Carbon Britain report

Our latest report shows that we already have the tools and technology needed to get to Zero Carbon.

Graduate School - applications now open

Explore sustainability and how you can help create change on one of our postgraduate courses.

Zero Carbon Britain: Rising to the Climate Emergency

Our latest report, Zero Carbon Britain: Rising to the Climate Emergency, is out now.

Incorporating work from the last 12 years of Zero Carbon Britain research and the latest scientific and technological developments, the report presents a technically feasible scenario showcasing a future Zero Carbon Britain using only proven technology.

Click here to read the report

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

Pain-free planning for your building project. If you’re thinking of building your own home, community space or other self-build structure, it pays to be prepared. This course covers how to…

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Join CAT Masters students for an in-depth week on harnessing solar power. Gain an in-depth understanding of solar energy, including solar electric (photovoltaic) and solar thermal hot water, learning from…

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Held during one of our MSc student Module Weeks, our Graduate School of the Environment open days offer an authentic informative taster of what it’s like to learn on our postgraduate…

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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

Temporary closure – updated 1 April 2020. With the global outbreak of coronavirus (COVID-19), CAT is following UK and Welsh Government, environmental health and industry advice very closely. This page…

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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

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

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

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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CAT skyline


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