Sorry I have not been on the forums frequently and not answered...

Sorry I have not been on the forums frequently and not answered much questions. Busy with life.

"While a gas plant may last for years... it requires gas to convert to electricity ... this also costs money - as you say, CAPEX is only part of the equation... question would then become - which would cost more??? gas or replacement batteries?

very certain that the cost per Mw of supply to charge a battery will be much less than what gas can produce at... plus it allows the operator to time the discharge into market also... profitability will be assured, plus FCAS income is currently very lucrative for BESS systems."

So according to you, would it be fairer to say OPEX for gas plant is mainly cost of gas + general maintenance? And BESS is cost of electricity + replacement batteries + general maintenance? If we assume general maintenance to be the same, then the equivalent of gas OPEX for batteries is replacement cost + cost of electricity?

Cost of gas to generate electricity <=equivalent to=> BESS replacement batteries + cost of electricity it buys from grid.

Let's see how it turns out.