Two Free Books on Energy (and Ecology) Issues

I want to introduce two amazingly well-written energy (and ecology) books that are freely available online. (Their download links and tables of contents are below.)
I didn't read them all yet. However, from my first impressions from the books, my short description is:
Girardet & Mendonça's book is newer. This book is more concentrating on social issues.
The book by Professor MacKay (pronounced mac-EYE) is covering relatively more technical issues with exhaustively selected data.

Girardet, H., & Mendonça, M. (2009). A Renewable World: Energy, Ecology, Equality - A Report for the World Future Council. Devon, UK: Green Books Ltd.
Download: http://www.worldfuturecouncil.org/a_renewable_world.html

MacKay, D.J.C. (2009). Sustainable Energy - without the hot air. Cambridge, UK: UIT Cambridge Ltd.
Download: http://www.withouthotair.com/download.html

A Renewable World: Energy, Ecology, Equality - A Report for the World Future Council
Table of Contents
Chapter 1: Energy Change, Climate Change  . . . . . . . . . .  25
Chapter 2: Carbon and the Biosphere   . . . . . . . . . . . .  49
Chapter 3: Renewable Energy   . . . . . . . . . . . . . . . .  75
Chapter 4: Towards Energy Equality  . . . . . . . . . . . . . 101
Chapter 5: Energy Suiciency . . . . . . . . . . . . . . . . . 121
Chapter 6: The Green-Collar Economy . . . . . . . . . . . . . 141
Chapter 7: Renewing the City  . . . . . . . . . . . . . . . . 161
Chapter 8: From Global to Local?  . . . . . . . . . . . . . . 183
Chapter 9: Problem Technologies . . . . . . . . . . . . . . . 203
Chapter 10: Going Deeper, Looking Further . . . . . . . . . . 223

Sustainable Energy - without the hot air
Table of Contents
I Numbers, not adjectives . . . . . . . . . . . . . . . . . . . 1
        1 Motivations . . . . . . . . . . . . . . . . . . . . . 2
        2 The balance sheet . . . . . . . . . . . . . . . . .  22
        3 Cars  . . . . . . . . . . . . . . . . . . . . . . .  29
        4 Wind  . . . . . . . . . . . . . . . . . . . . . . .  32
        5 Planes  . . . . . . . . . . . . . . . . . . . . . .  35
        6 Solar   . . . . . . . . . . . . . . . . . . . . . .  38
        7 Heating and cooling   . . . . . . . . . . . . . . .  50
        8 Hydroelectricity  . . . . . . . . . . . . . . . . .  55
        9 Light   . . . . . . . . . . . . . . . . . . . . . .  57
        10 Offshore wind  . . . . . . . . . . . . . . . . . .  60
        11 Gadgets  . . . . . . . . . . . . . . . . . . . . .  68
        12 Wave   . . . . . . . . . . . . . . . . . . . . . .  73
        13 Food and farming   . . . . . . . . . . . . . . . .  76
        14 Tide   . . . . . . . . . . . . . . . . . . . . . .  81
        15 Stuff  . . . . . . . . . . . . . . . . . . . . . .  88
        16 Geothermal . . . . . . . . . . . . . . . . . . . .  96
        17 Public services  . . . . . . . . . . . . . . . . . 100
        18 Can we live on renewables? . . . . . . . . . . . . 103
II Making a difference  . . . . . . . . . . . . . . . . . . . 113
        19 Every BIG helps  . . . . . . . . . . . . . . . . . 114
        20 Better transport . . . . . . . . . . . . . . . . . 118
        21 Smarter heating . . . . .  . . . . . . . . . . . . 140
        22 Efficient electricity use  . . . . . . . . . . . . 155
        23 Sustainable fossil fuels?  . . . . . . . . . . . . 157
        24 Nuclear? . . . . . . . . . . . . . . . . . . . . . 161
        25 Living on other countries’ renewables? . . . . . . 177
        26 Fluctuations and storage . . . . . . . . . . . . . 186
        27 Five energy plans for Britain  . . . . . . . . . . 203
        28 Putting costs in perspective . . . . . . . . . . . 214
        29 What to do now . . . . . . . . . . . . . . . . . . 222
        30 Energy plans for Europe, America, and the World  . 231
        31 The last thing we should talk about  . . . . . . . 240
        32 Saying yes . . . . . . . . . . . . . . . . . . . . 250
        Acknowledgments . . . . . . . . . . . . . . . . . . . 251
III Technical chapters  . . . . . . . . . . . . . . . . . . . 253
        A Cars II . . . . . . . . . . . . . . . . . . . . . . 254
        B Wind II . . . . . . . . . . . . . . . . . . . . . . 263
        C Planes II . . . . . . . . . . . . . . . . . . . . . 269
        D Solar II  . . . . . . . . . . . . . . . . . . . . . 283
        E Heating II  . . . . . . . . . . . . . . . . . . . . 289
        F Waves II  . . . . . . . . . . . . . . . . . . . . . 307
        G Tide II . . . . . . . . . . . . . . . . . . . . . . 311
        H Stuff II  . . . . . . . . . . . . . . . . . . . . . 322
IV Useful data  . . . . . . . . . . . . . . . . . . . . . . . 327
        I Quick reference . . . . . . . . . . . . . . . . . . 328
        J Populations and areas . . . . . . . . . . . . . . . 338
        K UK energy history . . . . . . . . . . . . . . . . . 342