sy anaerobic digestion toolkit

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This project is supported by the Sustainable Development Fund and East Midlands Development Agency

A TOOLBOX GUIDE FOR ASSESSING THE FEASIBILITY OF AN ANAEROBIC DIGESTION PROJECT DEVELOPED FOR THE BENEFIT OF A COMMUNITY OR FOR A SINGLE FARM

Prepared by Methanogen ltd Tooracurragh Ballymacarbry Co.Waterford Ireland With the advice & assistance of The Andersons Centregredman@theandersonscentre.co.uk

and Rutherford Renewablesdavid@rutherfordrenewables.co.uk

AD Development Toolbox

March 2010

DISCLAIMERS FOR SY AD REPORT

This report was commissioned by Sustainable Youlgrave and produced by Methanogen & Associates. Neither they nor the Peak District National Park Authority accept liability for any costs or losses arising as a result of the use or reliance upon the contents of this report by any person. The content of this report does not constitute legal advice, nor does it necessarily represent the views, aims or policies of the Peak District National Park Authority. This Guide has been part funded by the East Midlands Development Agency Limited (emda). The purpose of the Guide is solely for general interest and should not be used as a substitute for advice. The emda logo on the front of this Guide is for the purpose only of recognition of emdas contribution to the cost of the Guide and its preparation. This Guide or any part of it is neither endorsed by emda nor represents emdas views. Emda makes no warranty, representation or promise as to the accuracy of this Guides content. Emda hereby excludes all liability for any loss howsoever caused to the fullest extent permitted by law.

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AD Development Toolbox

March 2010

ContentsIntroduction................................................................................................................................... 3 Defining different types of Anaerobic Digestion (AD) situations.............................................. 4 How to use this document........................................................................................................... 5 Acronyms used in the document................................................................................................. 7 Chapter 1 - Introduction to AD ................................................................................................... 9 1.1 What is Anaerobic Digestion?.......................................................................................... 9 1.2 Technical Matters................................................................................................................ 11 1.2.1 Feedstock .................................................................................................................... 12 1.2.2 Maintaining a Good Process ...................................................................................... 14 1.2.3 Quality and type of outputs ......................................................................................... 15 1.2.4 Integration of the digester into surrounding systems ................................................ 17 1.2.5 Capital and operational (including maintenance) costs............................................ 21 1.2.6 Management............................................................................................................... 21 1.2.7 Layout of site.............................................................................................................. 22 1.2.8 Storage ....................................................................................................................... 23 1.2.9 Sites .............................................................................................................................. 24 1.3 Technology providers ........................................................................................................ 24 Chapter 2 - Deciding whether to develop an AD ..................................................................... 25 2.1 Identifying what is the primary purpose of the digester ..................................................... 25 2.2 Determining the size of AD ................................................................................................ 25 2.3 Choosing an optimum mix of Feedstock .......................................................................... 27 Chapter 3 - External effects of AD ............................................................................................ 28 3.1 Agricultural Effects........................................................................................................... 28 3.2 Environmental Effects ...................................................................................................... 29 3.3 Social Effect on Other Businesses & the Community ....................................................... 31 3.4 Community Development .................................................................................................. 33 3.5 Health................................................................................................................................ 36 3.6 Waste Management........................................................................................................... 37 Chapter 4 - Undertaking a feasibility study for an AD project.............................................. 39 Stage 1 research ........................................................................................................................ 39 Stage 2 - Assessment of information ........................................................................................ 41 2

AD Development Toolbox

March 2010

4.1 Farm Assessment .............................................................................................................. 42 4.2 Assessing a community CAD ........................................................................................... 43 4.3 Regulations ....................................................................................................................... 45 4.4 Finance .............................................................................................................................. 45 4.4.1 Supports ...................................................................................................................... 45 4.4.2 Banking ....................................................................................................................... 46 4.4.3 Local currency ............................................................................................................ 47 4.4.4 Investors...................................................................................................................... 48 4.5 Crucial internal & external factors related to development of AD ................................... 49 4.5.1 Internal......................................................................................................................... 50 4.5.2 External....................................................................................................................... 50 4.6 Factors pertinent to an on-farm AD .................................................................................. 51 4.7 Factors pertinent to a community digester........................................................................ 52 4.8 Public Consultation ........................................................................................................... 53 APPENDIX 1 Options for the use of Biogas? ......................................................................... 55 Heat Only .............................................................................................................................. 55 Electricity production ........................................................................................................... 55 Biogas Cleaned to Biomethane............................................................................................. 56 Future uses for biogas .......................................................................................................... 58 APPENDIX 2 Options for the use of Digestate Products........................................................ 59 Land bank for utilising the digestate .................................................................................... 60 APPENDIX 3 Technology Types ............................................................................................ 61 APPENDIX 4 Technology Providers ...................................................................................... 64 APPENDIX 5 Farm Assessment Form.................................................................................... 70 APPENDIX 6 - Possible Business Models for a Community CAD ......................................... 73 APPENDIX 7 Agricultural Considerations ............................................................................. 77 Farm Business....................................................................................................................... 77 Nutrient management............................................................................................................ 78 APPENDIX 8 Environmental Effects..................................................................................... 80 APPENDIX 9 Details concerning Regulations........................................................................ 85 APPENDIX 10 Getting connected.......................................................................................... 95 APPENDIX 11 APPENDIX 12 FINANCE - Banking.................................................................................. 100 FINANCE - Grants .................................................................................... 106

APPENDIX 13 - C

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