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Difference between revisions of "Hydro - FAQ"
From energypedia
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| − | + | ==== go to third tab <Edit> and ask your question question here ==== | |
| − | Answer the questions here ... | + | <br> Answer the questions here ... |
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| − | + | ==== What use can a hydropower installation satisfy? ==== | |
| − | + | *Direct drive of machinery | |
| + | *Electricity production for local use | ||
| + | *Electricity feed into grid for revenue<br> | ||
| − | <br> | + | <br> |
| + | |||
| + | ==== How many people can be supplied? ==== | ||
| + | |||
| + | *Available <u>share per household (hh) depends on local hydro potential and type of use</u> (lighting, TV, machinery, ...) | ||
| + | *Required power for <u>lighting</u> depends on no. and type of lamps used (3 - 5 Watt energy saving lamps are existing)<br> | ||
| + | *Machinery needs usually several kW (often machinery's power is given in HP (metrical Horsepower) 10 HP = 7.36 kW)<br>A motors starting power can be 50% higher than its regularly stated power. There are technical possibilities to address these (soft start). | ||
| + | *Electrical heating requires very high power. E.g. has a typical water heater ~ 3 kW. Within an isolated grid, electrical heating / cooking / oven is usually not practicable. Hot water can be produced centrally from the ballast load.<br> | ||
| + | *Electrical cooling is possible. | ||
| + | *Electrical fan ~ 200 Watt. | ||
| + | *Radio / DVD ~ 10 W / 2 W | ||
| + | *Water pump ~ 1 kW | ||
| + | *TV 50 -150 W (depending on type and size) | ||
| + | |||
| + | <br> | ||
| + | |||
| + | '''What are typical difficulties'''<br> | ||
| + | |||
| + | *financial coverage<br> | ||
| + | *remote location<br> | ||
| + | *specific conditions<br> | ||
| + | *uncertain outcome<br> | ||
| + | |||
| + | <br> | ||
| + | |||
| + | *'''Price range: '''depends on size of potential site, ranges from 2000 - 5000 USD/kW | ||
| + | *'''Material needed: '''Turbine, generator, controller come from a specialist | ||
| + | *'''Suitable geographic area: '''usual hilly and all year round water flow, also irrigation canals can have good hydropower potential | ||
| + | *'''Required competencies: '''Experience in mhp feasibility for pre-study and planning, patience in cooperation with the local entities'''<br>''' | ||
| + | *'''How Long does it take: '''Ideally flow measurements should be taken over several years to ensure safe data. A must is the measurement of the minimal flow during dry season. From there on a mhp plant can be installed within one year. Accessibility of remote location, delivery times for turbine and generator and social setup usually take longer than estimated. | ||
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[[Category:Hydro]] | [[Category:Hydro]] | ||
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Revision as of 10:30, 18 June 2010
go to third tab <Edit> and ask your question question here
Answer the questions here ...
What use can a hydropower installation satisfy?
- Direct drive of machinery
- Electricity production for local use
- Electricity feed into grid for revenue
How many people can be supplied?
- Available share per household (hh) depends on local hydro potential and type of use (lighting, TV, machinery, ...)
- Required power for lighting depends on no. and type of lamps used (3 - 5 Watt energy saving lamps are existing)
- Machinery needs usually several kW (often machinery's power is given in HP (metrical Horsepower) 10 HP = 7.36 kW)
A motors starting power can be 50% higher than its regularly stated power. There are technical possibilities to address these (soft start). - Electrical heating requires very high power. E.g. has a typical water heater ~ 3 kW. Within an isolated grid, electrical heating / cooking / oven is usually not practicable. Hot water can be produced centrally from the ballast load.
- Electrical cooling is possible.
- Electrical fan ~ 200 Watt.
- Radio / DVD ~ 10 W / 2 W
- Water pump ~ 1 kW
- TV 50 -150 W (depending on type and size)
What are typical difficulties
- financial coverage
- remote location
- specific conditions
- uncertain outcome
- Price range: depends on size of potential site, ranges from 2000 - 5000 USD/kW
- Material needed: Turbine, generator, controller come from a specialist
- Suitable geographic area: usual hilly and all year round water flow, also irrigation canals can have good hydropower potential
- Required competencies: Experience in mhp feasibility for pre-study and planning, patience in cooperation with the local entities
- How Long does it take: Ideally flow measurements should be taken over several years to ensure safe data. A must is the measurement of the minimal flow during dry season. From there on a mhp plant can be installed within one year. Accessibility of remote location, delivery times for turbine and generator and social setup usually take longer than estimated.
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