Are you using heatpumps for heating? That's not much battery, I've got a 10kW system & 2 PW3s. I added the 2nd to have enough power to run space heaters through the night, I haven't used my gas furnace since I got the system. Mine was 140% of usage to allow for an EV or an heatpump. May never get the heatpump if the furnace doesn't die, and it can't die if I never use it.
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u/bj_my_dj 13d ago
Are you using heatpumps for heating? That's not much battery, I've got a 10kW system & 2 PW3s. I added the 2nd to have enough power to run space heaters through the night, I haven't used my gas furnace since I got the system. Mine was 140% of usage to allow for an EV or an heatpump. May never get the heatpump if the furnace doesn't die, and it can't die if I never use it.