Fordecades,ruralareasalongtheYangtzeRiverdependedonsmallhydropowerstations.Now,amidrisingecologicalcostsandsafetyconcerns,thegovernmentwantstomakethemmoresustainable
EarlyinApril,continuousrainlashedthecentralcityofLiuyang,Hunanprovincefordays.AstheYangtzeRiverBasinentereditsmajorfloodseasonanditsbanksswelled,ChenTai’anstoodinsidethehydropowerplanthepartlyowns,listeningtotherumbleofitsturbines.
Hesaysit’sthebesttimeoftheyeartogeneratehydropowersincemostturbinesoperateatfullcapacity.Butthisyearhasbeendifferent.ChensayshisHongshaHydropowerStation’sannualrevenuefellbymorethan30,yuan($4,)asitsoutputwascutby,kilowattsperhour.
Thereducedpowergenerationstemmedfromnew,andmorestringent,governmentguidelinesformaintaining“ecologicalwaterflow”—thelevelandqualityofwaterinriverstosustainthelocalecosystem.
Accordingtoagovernmentpolicymandatedforsmallhydropowerstations,Chencouldn’tstorewaterduringthedryspellbetweenAugustandMarch—meaningriverwatercouldnolongerbefullystoredtogenerateelectricityasinpreviousyears.SohewasgivenuntilAugustoflastyeartoinstallafloodgateonthedamtoreleaseone-tenthoftheannualrunoffintotheriver,withwhichhe
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