This year appears to be the year of the battery, with the volume of projects that have been announced or in some stage of planning approaching the 10GW mark it is worth taking a look at how batteries are performing in the FCAS markets over the last two years.
Currently FCAS revenues make up somewhere between 90%-70% of total battery storage market revenues, however, we would expect this proportion to decrease in the future as prices for FCAS in the near to medium term decline and the volatility in the wholesale energy market increases and batteries take advantage of 5-minute settlement (to be introduced later this year).