I am looking for a better solution to Arizona SRP (Power company) time of use/peak usage charges and was reaching out to see if anyone is using a Growatt or MPP Solar inverter to deal with this. I know a Solark 12K would work since it can work with grid tie net metering and has tou settings but was thinking maybe someone has figured out a way to trigger a Growatt or MPP Solar inverter to switch over to solar and battery only at a specific time (example 5p) and then switch back to grid at a specific time (example 9p) every day. I did see some little information on the lvx6048 may have some settings like that coming in the future. I also was looking into Solar Assistant and saw that it has some different usage programing built in, just not sure how I would utilize that to have it switch back and forth from grid as priority to batteries and then back to make sure zero power usage during peak times. I am aware that Solar Assistant works with mqtt and home assistant and anything technically can be automated....but I was hoping to avoid going down that rabbit hole for now (I do have home assistant running but not very complex set up as of right now).
To explain the situation incase you may not know, peak usage hours change in Arizona to something like 5a-9a and 5p-9p in winter months and in summer months its 1pm-8pm. During these times the power company takes note of your usage and will add a peak usage charge to your bill based on max KWH pulled during any 30min sampling for the month. This peak usage is then multiplied by a fee could be as high as $25 per kw. So you could zero out your usage with net metering but get a $250 charge for the month due to your peak usage in those 30 minute windows. The goal is to use zero power during these peak usage hours. Just not sure if it can be pulled off with the Growatt or MPP Solar inverters and if they would cause any issues with equipment switch from grid to battery back to grid again (would it be a slow enough transfer to shutdown computers or mess with varriable speed and capacity A/C units lennox brand if it matters). Thank you for the help!
To explain the situation incase you may not know, peak usage hours change in Arizona to something like 5a-9a and 5p-9p in winter months and in summer months its 1pm-8pm. During these times the power company takes note of your usage and will add a peak usage charge to your bill based on max KWH pulled during any 30min sampling for the month. This peak usage is then multiplied by a fee could be as high as $25 per kw. So you could zero out your usage with net metering but get a $250 charge for the month due to your peak usage in those 30 minute windows. The goal is to use zero power during these peak usage hours. Just not sure if it can be pulled off with the Growatt or MPP Solar inverters and if they would cause any issues with equipment switch from grid to battery back to grid again (would it be a slow enough transfer to shutdown computers or mess with varriable speed and capacity A/C units lennox brand if it matters). Thank you for the help!
