This doesn’t really capture their meaning though. They are describing a change in how the solar generated electricity can be treated due to the changing battery prices.
Arguably your edit is more factual. But part of the job of the title in an editorial like this is to tell you what their perspective is.
I assume the intended meaning is “reduced battery costs make around-the-clock solar-generated electricity possible”. I don't think it's possible to predict how technical changes in electricity production and storage impact prices.
Ember’s report outlines how falling battery capital expenditures and improved performance metrics have lowered the levelized cost of storage, making dispatchable solar a competitive, anytime electricity option globally.
Well they are two different words with two different meanings. Both are true in this case. “Available” in the sense “obtainable,” “ready for use,” “suitable for a purpose” or perhaps “available to investors”
Garden path sentence structure trap creation relies on initial word parse error encouragement. Brain pattern recognition system default subject-verb-object order preference exploitation causes early stop interpretation failure.
Solar battery costs plummet phrase acting as complex noun modifier group creates false sentence finish illusion. Real subject findings arrival delay forces mental backtrack restart necessity.
Noun adjunct modifier stack length excess impacts processing speed negatively. Back word function switch from direction noun to support verb finalizes reader confusion state.
We write to be understood. Short sentences and simple words make the truth easy to see.
Falling battery prices make storing solar electricity for later use economically viable. This means we can use electricity from solar anytime around the clock. Even accounting for the cost of batteries, it's still competitive with other sources of electricity.
To me the context string is just a bit...lumpy or something, I don't think it's directly about the grammar. I would have written something more like: a battery costs plummet, analasis finds "anytime electricity" is now available from solar.