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Micro hydropower case studies
Micro hydropower case study.

Want to get a better idea how a micro hydropower scheme looks like? Pay a virtual visit to the Svinurayi agricultural co-operation in Cashel Valley in the Eastern Highlands of Zimbabwe. Click here to enter.

Example of a small hydropower installation as built by Electrovent. They have more than 500 unit of this kind installed in hunting and fishing camps or cabins located in northern Canada where they have small streams nearby. They successfully can make enough energy for the lighting, water pumps, radios and TV + the recharging of batteries for trolling outboard motors for use on lakes and rivers. There is in Northern Canada over 75,000 camps like this. This installation use a special Hydro-alternator that has a proportional integrated regulator and is wired for low RPM output. It has the advantages to adjust itself automaticly to the energy available in the stream. Many of them use one 15 amps alternator for 2 or 3 camps when they want only lignting and water pump.
More casestudies:
Derendingen archimedes screw in Switzerland
Cajamarca hydropower scheme in Peru
Jeffe Aronson's  low head microhydroplant in Australia
Idaho farm microhydro as posted by Joseph Hartvigsen to the microhydro discussion forum
lessons learned using micro-hydropower in the Zairian village (via WIRE)
Ifugao Firefly small scal low-cost battery charger from the Philippines 
Fonjumetaw in the north west Cameroon mountains by Heidemann Wasserkraftanlagen
Case Studies on small hydro by the European Commission
Hugueneuve Hydropower Station, France (PDF format, 390 Kb)
Llanidloes Clywedog 2 Hydropower Station, United Kingdom (PDF format, 325 Kb)
Dolwyddelan Garnedd Hydropower Station, United Kingdom (PDF format, 390 Kb)
Murillo el Fruto Hydropower Station, Spain (PDF format, 423 Kb)
OñateLamiategui Hydropower Station, Spain (PDF format, 455 Kb)
San Esteban de Gormaz Bubones Hydropower Station, Spain (PDF format, 488 Kb)
TalhadasLourizela Hydropower Station, Portugal (PDF format, 390 Kb)
FormarizPaus Hydropower Station, Portugal (PDF format, 423 Kb)
Caolo Hydropower Station, Italy (PDF format, 358 Kb)
Barca Hydropower Station, Italy (PDF format, 358 Kb)
Heidelberg Hydropower Station, Germany (PDF format, 455 Kb)
Rudolf-Fettweis Hydropower Station, Germany (PDF format, 390 Kb)
Esslingen Hydropower Station, Germany (PDF format, 455 Kb)
Makrohori Hydropower Station, Greece (PDF format, 423 Kb)
Amphisas Ghiona Hydropower Station, Greece (PDF format, 455 Kb)
Celbridge Hydropower Station, Ireland (PDF format, 455 Kb)
Ballinrobe Hydropower Station, Ireland (PDF format, 423 Kb)
Bantry Owenberg Hydropower Station, Ireland (PDF format, 423 Kb)
Morehead Valley Hydro Inc, Canada (also look at the photo album)
CADDET Renewable Energy hydropower cases:
Low- head 11 MW Hydro Plant in the Netherlands
After a number of feasibility studies, the weir at Linne, in the Netherlands was selected as the best site for an 11 MW hydro-power plant on the river Maas. During the years  following completion in 1989 an average of 31 GWh of electricity was produced each  year. This was 20 GWh/year lower than expected due to the unexpected fluctuation in the water level during the years the project was monitored,  although technically, the plant functioned well. (Printed 1995)
Hydro-power for a Remote Alaskan Community, USA
Residents of the remote fishing community of King Cove, Alaska live far from the nearest utility grid, and have therefore paid a premium for diesel-generated electricity. Now, a run-of-river hydro-electric facility, is  dedicated to the community's needs. The 800 kW plant exploits the area's abundant rainfall and glacier melt, and will provide cheaper electricity to the  residents for the next 30 to 40 years. King Cove is a demonstration of  clean energy production for other remote communities with suitable water resources. (Printed 1996)
Small-scale Hydro-power at Mae Ya, Thailand (UK Project)
This hydro-power plant, situated in a Thai National Park, has been fully operational since 1991.  It was specifically designed to satisfy local environmental constraints. The design also includes special features to remove highly abrasive silt from the turbine system. (Printed 1997)
Hydro-electric Generating Station Built within a Canal Lock System, UK
A hydro-electric generating station has been built into a lock system on a ship canal.  The turbine operates within a water level regime which allows the efficient  movement of vessels along the canal.
Water Current Turbines Pump Drinking Water, UK
Water current turbines are used on rivers and canals for water pumping and to generate electricity.  This project is used on the River Nile to provide   drinking water for about 5,000 people.
Micro Hydro Power for a Remote Tourist Lodge
A 52 kW hydro system supplies electricity to a 90-bed guesthouse in Tasmania's remote Wilderness Area.  Hydro power offered an environmentally-friendly alternative to either a diesel generator or clearance of native forest to make way for a transmission line. The system also provides water for the site and has eliminated the need for additional water storage and pumping facilities for fighting bush fires. (Printed 2000)
Small-scale Hydro within a Municipal Water Supply System
In Boulder, Colorado, five hydroelectric units in the city's municipal water supply system produce enough electricity to provide 7 percent of the electricity consumption of Boulder’s 125,000 residents. Two more installations, currently under construction, will almost treble the city’s hydro capacity. The project demonstrates how small hydroelectric equipment can be applied cost-effectively in municipal water supply systems, wherever a pressure-relief valve is used to reduce excess pressure in supply lines. (Printed 2000)
APACE casestudies:
Manawai Micro-hydro - Solomon Islands: A micro hydroelectricity power system and electrical mini-grid distribution system for a large and remote community in Malaita Island, enabling the beginnings of economic and social sustainability in the area. 
Ghatere Micro-hydro - Solomon Islands: A micro hydroelectric system for village operation, village ownership and village self-maintenance.
Vavanga Micro-hydro - Solomon Islands: A similar micro hydroelectric system now fully owned and operated by Vavanga community.
Agaun Micro-hydro - Papua New Guinea: A micro hydroelectricity power system now fully operated and maintained by the remote Agaun community, which sells excess power to a Government station nearby.
Iriri Micro-hydro - Solomon Islands: The first APACE effort in a community-based renewable energy project, now operated for 18 years by local villagers for development on their own terms. 
Low head micro hydropower plant of Pinecrest by John Q. McMillian 
Micro-hydropower plants in Laos by Allen Inversin 
A Spiral Waterwheel Pump (article from ReNew magazine) 
Photos of the 80 kW facility at Ho'owaiwai Farms, Hawaii (Hydropower in Hawaii fact sheet)
Micro hydro scheme at the waste water treatment plant in Emmerich, Germany 
Low head Kaplan scheme in Cottbus, Germany 
Pelton wheel at the Centre for Alternative Technology, Wales, UK
Waterpower in the Andes, article by Ron Davis in HomePower magazine (PDF-format) 
LEDCO casestudies from Nepal:
Nyadi Hydropower project 
Khudi Hydropower project 

Comments and remarks to Wim Jonker Klunne

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