in current account the value of my parameter is 0 (high-efficiency buildings), then I have each year growth of 0.2% of the total amount of households. The functions Growth returns 0 when the current accounts are 0, I've tried to use Add([growthFromYear]), but I'm not able to write it in the right way, or maybe it's not the right function to be used.

How can I model this scenario?

thank you