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Wait... It costs only $187 to store a MWh? Why isn't there a 200$ device in every home that stores energy for the night?
by Iv 8y ago
Wait... It costs only $187 to store a MWh? Why isn't there a 200$ device in every home that stores energy for the night?
- yojo 8y agoI assume these are the costs at scale. There are likely fixed costs that dramatically increase the unit price of a single home installation.
- Iv 8y agoStill, 1MWh is the average monthly consumption of a single household. That means that for a fixed cost of less than 200$ per family we could solve intermittency problems by building, probably one battery per village or city block. It is cheaper than storing water to put pressure in the network. Something seems off in these numbers.
- Iv 8y agoI'll answer my own question: This is not a MWh of installed capacity, this is a MWh of discharge. That is, over the expected lifetime of a storage installation, consuming one MWh from such an installation would cost $187. Still much more expensive than alternatives (about 4x the cost of nuclear) but arriving in the realm of feasibility.