toxicmolotof
2017-03-04 13:14:11
- #1
We are basically rotated by 45°, no matter how you set up East-West.
Then with East/West you have the "advantage" that the curve becomes wider and flatter... at least in theory.
In practice, this is offset by a more expensive frame and a significantly more expensive inverter. In the end, it will never be worthwhile. If you are really interested, have two equally sized systems calculated, one facing south and one East-West.
East-West always delivers less yield at higher investment costs. And then it doesn't matter whether it's self-consumption or feed-in. Self-consumption does not make photovoltaics more profitable.
East-West systems with batteries are even more schizophrenic. At that point, I can only shake my head.
The only leverage an East-West system has is that you can get a larger system by using more modules (if space and budget allow) and thus lower the kWp/price.
Then with East/West you have the "advantage" that the curve becomes wider and flatter... at least in theory.
In practice, this is offset by a more expensive frame and a significantly more expensive inverter. In the end, it will never be worthwhile. If you are really interested, have two equally sized systems calculated, one facing south and one East-West.
East-West always delivers less yield at higher investment costs. And then it doesn't matter whether it's self-consumption or feed-in. Self-consumption does not make photovoltaics more profitable.
East-West systems with batteries are even more schizophrenic. At that point, I can only shake my head.
The only leverage an East-West system has is that you can get a larger system by using more modules (if space and budget allow) and thus lower the kWp/price.