Thanx. Good questions !
my views :
(1) There is a big difference between “Hydro power” & “Pumped hydro storage project” also known as PSP.
(2) Hybrid by definition is a combo of any two out of Solar , Wind, Hydro power.
Because if we combine all 3 together , it may become a complex project
(3) In India when we say Hybrid – it is mostly a combo of Solar & wind , though there can be other combo of any two possible
.
(4) RTC Hybrid meaning the hybrid project is integrated with an energy storage solution either PSP or BESS.
(5) In cost, only two costs are being discussed currently – RTC Hybrid with PSP & RTC Hybrid with BESS
(5) If electrolyser Fuel cells are used , my guess is cost could go up by at least 40-50% due to import content – seen some where in digital media. and these capacities are yet to come up to deploy as energy storage.
So currently , All electrolyser capacities in India and imported ones are diverted for Green hydrogen requirement for Fertilizer , Refineries, industries , which is huge
(6) So the preferred mode of energy storage is PSP due to initial cost reasons and life of PSP is 30-40 years , BESS life is 15 years and PSP is all indigenous and BESS involves import of lithium ion battery or its ingredients involving rare elements.
I may be wrong and I stand corrected
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