- The promoters are likely to present at least a realistic (if not optimistic) estimate of mid term cost, the technologies involved are all mature (so the potential for further reduction I'd low), and the estimated cost is not materially better than battery energy storage (worse, in fact, than near term forecasts, and much worse than midterm potential battery energy storage cost).
- The siting flexibility is poor, which means grid connection will be slow/expensive.
- The power density will be pretty bad (which wouldn't matter for bulk energy storage... but it's too expensive to compete in that market).
Maybe it could become more attractive with much taller cranes?
- The promoters are likely to present at least a realistic (if not optimistic) estimate of mid term cost, the technologies involved are all mature (so the potential for further reduction I'd low), and the estimated cost is not materially better than battery energy storage (worse, in fact, than near term forecasts, and much worse than midterm potential battery energy storage cost).
- The siting flexibility is poor, which means grid connection will be slow/expensive.
- The power density will be pretty bad (which wouldn't matter for bulk energy storage... but it's too expensive to compete in that market).
Maybe it could become more attractive with much taller cranes?