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Centre for Alternative Technology

The Centre for Alternative Technology (CAT) is an educational charity dedicated to researching and communicating positive solutions for environmental change. At our eco visitor centre in mid Wales, and online, we train students in all aspects of sustainability, we help schoolchildren to understand the importance of action on climate change, and we give advice to householders on what they can do in their own homes.

CAT’s new Zero Carbon Britain Hub and Innovation Lab helps turn climate emergency declarations into action, sharing zero carbon solutions to help build resilience where you live. We provide local authorities, businesses, institutions and community groups with the training, confidence, skills and understanding to help achieve net-zero greenhouse gas emissions by 2040.

Visit our website for the lastest resources, courses, training and webinars.

Free advice

CAT’s Free Information Service offers free, independent and impartial advice on a wide array of topics relating to sustainability and sustainable living: renewable energy, green building and retrofit, water and sewage treatment, organic growing, and more.

Free resources

CAT’s Zero Carbon Britain Resource Hub offers freely available online inspiration, tools, reports, guidance, training, webinars and more to support your action on net zero.


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Llwyngwern Quarry, Machynlleth, Powys, SY20 9AZ

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