The quest for safe, secure and sustainable energy poses one of the most critical challenges of our age. But how much energy do we need, and can we get it all from renewable sources? David MacKay sets out to find the answer through a forensic numerical analysis of what we use and what we can produce. His conclusions starkly reveal the difficult choices that must urgently be taken and readers interested in how we will power our society in the future will find this an illuminating read. For anyone with influence on energy policy, whether in government, business or a campaign group, this book should be compulsory reading. This is a technically precise and readable account of the challenges ahead. It will be a core reference on my shelf for many years to come.
Tony Juniper
Former Executive Director, Friends of the Earth

Engagingly written, packed with useful information, and refreshingly factual.
Peter Ainsworth MP
Shadow Secretary of State
for Environment, Food, and Rural Affairs

David MacKay sets out to dispel the half truths, distortions and nonsense which make up so much of what we’re told about climate change and our energy needs. This book is readable, accessible and thorough. He cuts through unfounded opinion and takes us to facts and figures which speak for themselves. It’s a useful guide for both layman and expert. I heartily recommend it.
Graham Stuart MP

This remarkable book from an expert in the energy field sets out, with enormous clarity and objectivity, the various alternative low-carbon pathways that are open to us. Policy makers, researchers, private sector decision makers, and NGOs, all will benefit from these words of wisdom.
Sir David King FRS
Chief Scientific Adviser

David J.C. MacKay. Sustainable Energy – without the hot air.
UIT Cambridge, 2008. ISBN 978-0-9544529-3-3. Available free online
from www.withouthotair.com

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