[hammock]

Just read the subhead. It explains everything.

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.

[kgwgk]

I.e. making it a viable option.

[hammock]

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”