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| Re: LIRR to test retrofitting M7s to run off batteries (1573997) | |||
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Re: LIRR to test retrofitting M7s to run off batteries |
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Posted by AlM on Thu Apr 22 12:24:27 2021, in response to Re: LIRR to test retrofitting M7s to run off batteries, posted by pragmatist on Thu Apr 22 11:21:08 2021. Some interesting developments in electric school buses, and using them as "battery banks" sending power back to the grid if needed, during idle times.That sounds like a hugely expensive way for the grid to acquire backup power (unless we are talking about rare emergencies). It will seriously reduce the working lifetimes of the school bus batteries. The grid needs some very large scale reasonable battery* projects to make renewable energy practical. I am bothered by how little discussion I see about such projects. * Includes more flexibility of single-use power. For example, if you double the generating capacity of a hyrdo project, you don't add a single kwhr of energy to it, but you make the availability of those kwhrs far more flecible. |
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