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gnocchicotti t1_j6g96et wrote

Reply to comment by Phobos15 in Scientists lower price of lithium's best competition - flow batteries - by 20%. Makes the battery effectively equal to or cheaper than lithium ion when spread over 30 years (flow battery lifetimes are effectively infinite with light repowering efforts). by PorkyPigDid911

Steel roofs last a lot longer than asphalt shingles but not many people buy them due to the long payoff time.

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markfickett t1_j6g9mx2 wrote

I thought this, but pricing it out with a GC it came out about even (replacing asphalt several times versus standing seam once). And cost to remove/replace solar is a little confusing to, since the solar technology will probably be way better in another 10-15y.

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