Tesla Motors Club
I must be misunderstanding something about the DC to AC conversion going, or how much a set of panels can actually produce compared to its given rating.
I'm going to have a set of active solar tiles at roughly a 160 degree azimuth (SSE), and I'm not sure about the roof pitch, but I'll call it "average". The set of tiles is rated at 5.6 kW. The weather data source long/lat for PVWatts is 41.73, -72.54.
They're planning on using a M4-TL-US for that set of tiles (datasheet at https://filecenter.deltaww.com/Products/Download/05/0505/M series datasheet rev13-20190703.pdf). When I inquired about clipping, and moving to an M6-TL-US, the project advisor checked with engineering and got back saying they confirmed there wouldn't be any clipping on the M4 so they're going to stick with that.
The M# units from Delta has a maximum DC/AC ratio of 1.3. And its namesake 4000W is maximum for the inverter - its nominal is 3840W. That's a DC/AC ratio of 1.46. Now I understand the vast majority of the time, it's not going to be maxed out. But in the summer months when the solar radiation is near the rest of the country, it seems like the set of tiles would be producing well over the limit of the inverter to convert.
What am I missing here that would mean there'd be no clipping?
I'm going to have a set of active solar tiles at roughly a 160 degree azimuth (SSE), and I'm not sure about the roof pitch, but I'll call it "average". The set of tiles is rated at 5.6 kW. The weather data source long/lat for PVWatts is 41.73, -72.54.
They're planning on using a M4-TL-US for that set of tiles (datasheet at https://filecenter.deltaww.com/Products/Download/05/0505/M series datasheet rev13-20190703.pdf). When I inquired about clipping, and moving to an M6-TL-US, the project advisor checked with engineering and got back saying they confirmed there wouldn't be any clipping on the M4 so they're going to stick with that.
The M# units from Delta has a maximum DC/AC ratio of 1.3. And its namesake 4000W is maximum for the inverter - its nominal is 3840W. That's a DC/AC ratio of 1.46. Now I understand the vast majority of the time, it's not going to be maxed out. But in the summer months when the solar radiation is near the rest of the country, it seems like the set of tiles would be producing well over the limit of the inverter to convert.
What am I missing here that would mean there'd be no clipping?