In the examples examined in the five countries, the capital cost13 of micro hydro plants, limited to shaft power, ranged from US$714 (Nepal, Zimbabwe) to US$1,233 (Mozambique). The average cost is US$965 per installed kW which is in line with the figures quoted in some studies. The installed costs for electricity generation schemes are much …
Arrangement of hydropower plants
Hydropower machine is the designation used for a machine that directly convert the hydraulic power in a water fall to mechanical power on the machine shaft. This power conversion involves losses that arise partly in the machine itself and partly in the water conduits to and from the machine. The discharge operating a water turbine, …
How to determine the hydropower available at site
To determine the power available at a site, head and flow measurements must be taken. Flow is the rate at which water moves, measured in liters per minute (I/m) or gallons per minute (gpm). This can be measured by channeling the water into a pipeline, then into a container of a known volume, noting the …
Economic analysis of an MHPP
As with any other investment project, the economic feasibility of micro hydro projects must be proven to attract the interest of investors. It is also of key importance in enabling financial institutions to supply the funds necessary to finance the project in addition to the promoter’s own funds. This will be possible if the project …
Few Facts About Three Gorges Dam
The Three Gorges Dam is the world’s largest hydropower project and most notorious dam. The massive project sets records for number of people displaced (more than 1.2 million), number of cities and towns flooded (13 cities, 140 towns, 1,350 villages), and length of reservoir (more than 600 kilometers). The project has been plagued by corruption, …
Hydro vs. Wind vs. Solar Power?
Matthew Stein, author of When Technology Fails: A Manual for Self-Reliance, Sustainability, and Surviving the Long Emergency wrestles with that very question in his book. Here’s an excerpt: No single RE source works best all the time in all situations. Hybrid systems often yield the best year-round performance. Wind and micro-hydro usually perform well during …
