david056

If I was on ToU I would build programs in ISY to raise my A/C temps during peak rate times and possibly higher an hour before the peak and shoulder rates dropped back so the discomfort would be low and the lower rate would bring the temperature back into comfort line, immediately after implementation. Possibly the reverse could be done by dropped the temperature off grid an hour before the higher rate became effective. This is quite easy using ecobee thermostats along with ISY Polyglot ecobee NS. In the ecobee stats you can define custom "climates" and just turn one on when needed, with the fail back over to the schedule next "climate" schedule change. That works very well. You don't have to play with temperatures or even know what they are inside ISY