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<blockquote data-quote="John Roberts" data-source="post: 82157" data-attributes="member: 126">Re: Batteries May Become ObsoleteYup, super-cap, super-battery, gas tank, sudden release of energy undesirable.yup, death happens, it is remarkable how much death is all around. Part of life.&nbsp; Not sure I follow does graphene make solar cells too?I see this a little differently... the history of energy (oil, gas, et al) has been a long progression of more efficient prospecting and extraction technology for buried reserves. The price of oil and NG is still cheap for what it is, before taxes get added on, then it is still cheap for what it is. $100/barrel oil is more reflective of weakening currency than oil getting more expensive. This is a mature technology, used to store off peak energy to help level load/usage. Your 900M reservoir could pass water up to 1000m and back down again to 0m using a simple siphon, with no pump required. Pumping it up into 1000m reservoir may be simpler and you do get the energy back from lifting it up 100m, the only pumping losses are resistance in the plumbing.&nbsp; JR</blockquote>

[QUOTE="John Roberts, post: 82157, member: 126"] Re: Batteries May Become Obsolete Yup, super-cap, super-battery, gas tank, sudden release of energy undesirable. yup, death happens, it is remarkable how much death is all around. Part of life. Not sure I follow does graphene make solar cells too? I see this a little differently... the history of energy (oil, gas, et al) has been a long progression of more efficient prospecting and extraction technology for buried reserves. The price of oil and NG is still cheap for what it is, before taxes get added on, then it is still cheap for what it is. $100/barrel oil is more reflective of weakening currency than oil getting more expensive. This is a mature technology, used to store off peak energy to help level load/usage. Your 900M reservoir could pass water up to 1000m and back down again to 0m using a simple siphon, with no pump required. Pumping it up into 1000m reservoir may be simpler and you do get the energy back from lifting it up 100m, the only pumping losses are resistance in the plumbing. JR [/QUOTE]

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