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The Minnesota report [1] discussed in your links is much more nuanced than just the graph excerpt. It suggests that a judicious use of federal investment credit

The Minnesota report [1] discussed in your links is much more nuanced than just the graph excerpt. It suggests that a judicious use of federal investment credits and future anticipated cost decreases might make storage combined with solar generation a competitive or cheaper option than natgas peakers by 2023, but also proposes that Minnesota is well-positioned to start early, and learn by example. While this may presage an industry trend, it's a long way away from the raw, unsubsidized numbers of storage-only timeshift solutions fully being cheaper than peakers. Battery storage isn't booming because it's that good right now; it's about to start expanding because of smart players taking advantage of subsidies, and betting on long-term trends. [1] http://energytransition.umn.edu/wp-content/uploads/2017/07/Workshop-Report-Final.pdf http://energytransition.umn.edu/wp-content/uploads/2017/07/W...

deleted 9y ago
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toomuchtodo 9y ago
I agree that there's nuance. Renewables and energy storage receive subsidies, yet there is no carbon tax to level the playing field with traditional fossil peakers (or even load following or base load fossil, for that matter). Besides California, Arizona, Hawaii, Massachusetts, New Jersey, New York, and Washington are also mandating utility scale energy storage. I anticipate additional states mandating the same in the near (1-3 years) future, which will contribute to driving down the cost of energy storage as manufacturing scales up. Time will tell.
- toomuchtodo 9y ago
  Replying here because I can no longer edit. I just found this interesting article about how China wants to be the destination for all things lithium ion storage for repurposing. https://www.bloomberg.com/view/articles/2018-03-11/china-s-giving-batteries-a-second-life https://www.bloomberg.com/view/articles/2018-03-11/china-s-g... This could mean a profound shift in utility battery storage if all of these EV batteries are going to go into grid storage after their useful life has been depleted in vehicles.
woodandsteel 9y ago
So you disagree with toomuchtodo that storage is cheaper now, but agree about where things are going in the long term.

deleted 9y ago

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toomuchtodo 9y ago

I agree that there's nuance. Renewables and energy storage receive subsidies, yet there is no carbon tax to level the playing field with traditional fossil peakers (or even load following or base load fossil, for that matter). Besides California, Arizona, Hawaii, Massachusetts, New Jersey, New York, and Washington are also mandating utility scale energy storage. I anticipate additional states mandating the same in the near (1-3 years) future, which will contribute to driving down the cost of energy storage as manufacturing scales up. Time will tell.

toomuchtodo 9y ago
Replying here because I can no longer edit. I just found this interesting article about how China wants to be the destination for all things lithium ion storage for repurposing. https://www.bloomberg.com/view/articles/2018-03-11/china-s-giving-batteries-a-second-life https://www.bloomberg.com/view/articles/2018-03-11/china-s-g... This could mean a profound shift in utility battery storage if all of these EV batteries are going to go into grid storage after their useful life has been depleted in vehicles.

woodandsteel 9y ago

So you disagree with toomuchtodo that storage is cheaper now, but agree about where things are going in the long term.