We have an addiction to fossil fuels, and it's not sustainable. Howcan we replace fossil fuels? How can we ensure security of energysupply? How can we solve climate change?We're often told that;huge amounts of renewable power are available;- wind, wave, tide, and so forth. But our current power consumption is also huge! To understand our sustainable energy crisis, we need to know how the one compares with the other. We need numbers, not adjectives.This book shows how to estimate the numbers, and what those number sdepend on. Taking the United Kingdom as an example, it asks first;could Britain live on renewable energy resources alone?; and second;how can a country like Britain make a realistic post-fossil-fuel energy plan that adds up?; It answers these questions in detail,bringing home the size of the changes that society must undergo if sustainable living is to be achieved. It's not going to be easy to make an energy plan that adds up - but it is possible.A special feature of the book is that it avoids sensationalist numbers. Where others deliberately use incomprehensibly large or small numbers to shock the reader, this book uses numbers and comparisons to illuminate. For example, energy consumption and production are made accessible by expressing them in terms of the energy used per person, per day.This book can also save you more than its cover price by helping you cut your energy bills!