An essential addition to the Earthscan Planning & Installing series, Planning and Installing Micro-Hydro Systems provides vital diagrams, pictures and tables detailing the planning and installing of a micro-hydro system, including information on the maintenance and economics once an installation is running. The book covers subjects such as measuring head and flow, ecological impacts, scheme layouts, practical advice, calculations and turbine choice. Archimedes screws are also covered in detail, as well as the main conventional choices relevant to small sites.
Micro-hydro refers to hydropower systems with a power rating of 100kW or less. A 100kW system will produce 100 standard units of electricity in one hour. These systems have been popular in some sparsely populated or mountainous countries for a number of years, but now new technology, less stringent regulation of grid connected generators and standardised turbine designs are encouraging more widespread interest in micro-hydro in the developed world.
The renewable energy sector is growing at a remarkable rate, and whilst much attention has so far focused on solar and wind technologies, Europe and elsewhere have great potential for generating power from small scale hydroelectric installations.
This book is aimed at site owners, designers and consultants who are looking to develop schemes in the micro-hydro scale – 5 to 100kW – although the concepts are applicable to smaller and larger schemes.
Table of Contents
1. Energy in Context 2. Hydro Basics 3. The Weight of Water 4. Head and Flow 5. Ecological Considerations 6. Stages of Project Design 7. Initial Design 8. Predicting Power Output and Energy Capture 9. The Value of Power 10. Weirs and Impoundments 11. Intakes and Forebays 12. Spillways 13. Channels 14. Fish Passage Structures 15. Powerhouses 16. Screening 17. Penstocks 18. Sluices 19. Turbines 20. Mechanical Transmission 21. Archimedes Screw Turbines 22. Electrical Basics 23. Control Equipment 24. Generators 25. Grid Connection 26. Design for Flood 27. Assessing Historic Structures 28. Condition Monitoring 29. Commercial 30. Site Investigation 31. Temporary Works and Construction Methods 32. Accepting Machinery, Installation and Commissioning 33. Maintenance and Monitoring
Chris Elliott is a Chartered Mechanical Engineer and has many years' experience in small hydro in the UK, and set up WRE in 2005, later taken over by Renewables First. He has designed and installed dozens of schemes in this time across a range of sizes and technologies.