This prediction seems a little misleading to me - though his inverter will indeed likely clip at some point in the middle of the day in summer months (unless it's hot), his total daily production will definitely be highest in those months, which is what I think he's really concerned about. And unless his orientation is really odd, his peak instantaneous production will be lower in the winter as well. For example, our fairly steeply angled roof faces WSW - right now our peak is about 2400w at best orientation on a 3.44kWDC/3kWAC rated system. In the summer we are right up close to the rating in steady state (and clipping when intermittent clouds cause temperature swings).RegGuheert wrote:You will be farthest from 5.4kW during the summer unless your roof is VERY flat. You will never get much beyond 5.0kW, which is the point at which your inverter will limit the output.wongfeihong187 wrote:Good to know that I'll get at least close to 5.4kw during the summer.
Maybe all you are saying is that his 5KW inverter will always clip at ~5100w, which it will, but I'm confused by the "farthest from 5.4 during summer" statement.