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Water Energy Advantages And Disadvantages Pdf Download > urlin.us/3xwy9















































Water Energy Advantages And Disadvantages Pdf Download

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People..living..in..villages..and..towns..that..are..in..the..valley..to..be..flooded,..must..move..out...Hydropower...Strengths...and...Weaknesses...After...more...than...a...century...of...experience,...hydropower’s...strengths...and...weaknesses...are...equally...well...understood....This..can..lead..to..serious..problems..between..neighbouring..countries...6..CLICK.HERE.FOR.TECHNOLOGY.AND.ENVIRONMENT.INDEX.PAGE...

Inundation.of.terrestrial.habitat.Modification.of.hydrological.regimes.Modification.of.aquatic.habitats.Water.quality.needs.to.be.monitored/managed.Greenhouse.gas.emissions.can.arise.under.certain.conditions.in.tropical.reservoirs.Temporary.introduction.of.methylmercury.into.the.food.chain.needs.to.be.monitored/managed.Species.activities.and.populations.need.to.be.monitored/managed.Barriers.for.fish.migration,.fish.entrainment.Sediment.composition.and.transport.may.need.to.be.monitored/managed.Introduction.of.pest.species.needs.to.be.monitored/managed...7.........Building.a.large.dam.alters.the.natural.water.table.level..This.is.slowly.leading.to.damage.of.many.of.its.ancient.monuments.as.salts.and.destructive.minerals.are.deposited.in.the.stone.work.from.rising.damp.caused.by.the.changing.water.table.level..When.in.use,.electricity.produced.by.dam.systems.do.not.produce.green.house.gases..These.are.summarised.for.economic,.social.and.environmental.aspects.of.hydropower.in.the.following.tables:.ECONOMIC.ASPECTS.ADVANTAGES.DISADVANTAGES.Provides.low.operating.and.maintenance.costs.Provides.long.life.span.(50.to.100.years.and.more).Meets.load.flexibly.(i.e.hydro.with.reservoir).Provides.reliable.service.Includes.proven.technology.Can.instigate.and.foster.regional.development.Provides.highest.energy.efficiency.rate.(payback.ratio.and.conversion.process).Can.generate.revenues.to.sustain.other.water.uses.Creates.employment.opportunities.Saves.fuel.Can.provide.energy.independence.by.exploiting.national.resources.Optimizes.power.supply.of.other.generating.options.(thermal.and.intermittent.renewables).High.upfront.investment.Precipitation.dependent.In.some.cases,.the.storage.capacity.of.reservoirs.may.decrease.due.to.sedimentation.Requires.long-term.planning.Requires.long-term.agreements.Requires.multidisciplinary.involvement.Often.requires.foreign.contractors.and.funding.SOCIAL.ASPECTS.ADVANTAGES.DISADVANTAGES.Leaves.water.available.for.other.uses.Often.provides.flood.protection.May.enhance.navigation.conditions.Often.enhances.recreational.facilities.Enhances.accessibility.of.the.territory.and.its.resources.(access.roads.and.ramps,.bridges).Provides.opportunities.for.construction.and.operation.with.a.high.percentage.of.local.manpower.Improves.living.conditions.Sustains.livelihoods.(freshwater,.food.supply).May.involve.resettlement.May.restrict.navigation.Local.land.use.patterns.will.be.modified.Waterborne.disease.vectors.may.occur.Requires.management.of.competing.water.uses.Effects.on.impacted.peoples’.livelihoods.need.to.be.addressed,.with.particular.attention.to.vulnerable.social.groups.Effects.on.cultural.heritage.may.need.to.be.addressed.ENVIRONMENTAL.ASPECTS.ADVANTAGES.DISADVANTAGES.Produces.no.atmospheric.pollutants.Neither.consumes.nor.pollutes.the.water.it.uses.for.electricity.generation.purposes.Produces.no.waste.Avoids.depleting.non-renewable.fuel.resources.(i.e.,.coal,.gas,.oil).Very.few.greenhouse.gas.emissions.relative.to.other.large-scale.energy.options.Can.create.new.freshwater.ecosystems.with.increased.productivity.Enhances.knowledge.and.improves.management.of.valued.species.due.to.study.results.Can.result.in.increased.attention.to.existing.environmental.issues.in.the.affected.area..Dams.are.extremely.expensive.to.build.and.must.be.built.to.a.very.high.standard..They...do...not...pollute...the...atmosphere....6....

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